[ { "path": ".gitignore", "content": "# built application files\n*.ap_\n\n# files for the dex VM\n*.dex\n\n# Java class files\n*.class\n\n# generated files\nbin/\ngen/\n\n# Local configuration file (sdk path, etc)\nlocal.properties\n\n# Proguard folder generated by Eclipse\nproguard/\n\n# Ignore gradle files\n.gradle/\nbuild/\n\n# Eclipse project files\n.classpath\n.project\n.settings/\n\n# Intellij project files\n*.iml\n*.ipr\n*.iws\n.idea/\n\n# Mac system files\n.DS_Store" }, { "path": "README.md", "content": "# MemoryMonitor \n\n一个给开发者使用的Android App内存清理、监控工具。 \n\n主要包括三部分内容：\n\n* 内存清理 \n\n通过内存清理可以模拟系统内存不足时对进程的回收。\n\n* Pss监控 \n\n通过内存监控可以监控指定应用程序使用的total Pss以及当前手机的内存使用情况，从而检测该应用是否存在内存泄漏。\n\n* 内存优化\n\n整理了一些关于内存优化的tips，以及一些可能导致内存溢出的场景示例，包含错误的写法和正确的写法。\n\n## 1.内存清理\n\n类似各种手机管家的 **加速球**，获取系统已用内存比率、可用内存大小，一键清理。\n\n可以用于测试自己开发的Activity、Fragment健壮性，模拟Activity、Fragment被回收的场景，测试自己的程序是否完好的保存、恢复当前场景。\n\n比如：打开你开发的某个Activity、Fragment，切到后台，清理一次内存，在将其切回前台后，看会不会出现空指针异常，以及程序状态是否被恢复。\n\n## 2.Pss监控\n\nAndroid 系统中的内存和Linux系统一样，存在着大量的共享内存。每个APP占内存会有私有和公共的两部分，我们可以通过App的Pss值，可以获取到这两部分内存。\n\nPss（Proportional Set Size）：实际使用的物理内存，即：自身应用占有的内存+共享内存中比例分配给这个应用的内存。\n\n通过该程序，每隔1秒，获取一次被监控App的Total Pss值。\n\n使用某个功能（可能会导致OOM的那些都要试试），查看Pss是否飙升，或者使用过许久都没有降低。\n\n如果使用后飙升并且长时间都降不下来，那就说明肯定会导致OOM（对象使用过之后还被引用着未释放），如果使用之后Total Pss飙升，但是使用过之后能降下来，也可能会导致OOM，我们还是需要去一点一点排查是什么原因导致的。\n\n如果使用后飙升并且长时间都降不下来，我们就需要 [使用MAT来进一步分析问题所在](http://blog.csdn.net/xiaanming/article/details/42396507)。\n\n此处提到的Pss，也可以使用adb命令 \n\n> adb shell dumpsys meminfo *your packageName* \n\n查看： \n\n![total Pss](https://github.com/cundong/MemoryMonitor/blob/master/screenshot/total%20Pss.png?raw=true) \n\n## 3.内存优化\n\nAndroid的虚拟机是基于寄存器的Dalvik，它的最大堆大小一般比较小（最低端的设备16M，后来出的设备变成了24M，48M等等），因此我们所能利用的内存空间是有限的。如果我们使用内存占用超过了一定的限额后就会出现OutOfMemory的错误。\n\n可能会导致内存溢出的情况有以下几种：\n\n### 对静态变量的错误使用 \n\n如果一个变量为static变量，它就属于整个类，而不是类的具体实例，所以static变量的生命周期是特别的长，如果static变量引用了一些资源耗费过多的实例，例如Context，就有内存溢出的危险。\n\n[Google开发者博客，给出了一个例子](http://android-developers.blogspot.jp/2009/01/avoiding-memory-leaks.html)，专门介绍长时间引用Context导致内存溢出的情况。\n\n示例代码：\n\n```java\nprivate static Drawable sBackground;\n\n@Override\nprotected void onCreate(Bundle state) {\n\tsuper.onCreate(state);\n\n\tTextView textView = new TextView(this);\n\ttextView.setText(\"Leaks are bad\");\n\t\t\n\tif (sBackground == null) {\n\t\tsBackground = getResources().getDrawable(R.drawable.large_bitmap);\n\t}\n\t\t\n\ttextView.setBackgroundDrawable(sBackground);\n\t\n\tsetContentView(textView);\n}\n```\n\n这种情况下，静态的sBackground变量，虽然没有显式的持有Context的引用，但当我们执行`view.setBackgroundDrawable(Drawable drawable);`的时候，drawable 对象会将当前view设置为一个回调，通过 `View.setCallback(this)` 方法。 \n\n具体可见View类的源码： \n```\npublic void setBackgroundDrawable(Drawable background) {\n\t//...\n\t\n\tif (mBackground == null || mBackground.getMinimumHeight() != background.getMinimumHeight() ||\n mBackground.getMinimumWidth() != background.getMinimumWidth()) {\n requestLayout = true;\n }\n\n background.setCallback(this);\n if (background.isStateful()) {\n background.setState(getDrawableState());\n }\n \n background.setVisible(getVisibility() == VISIBLE, false);\n mBackground = background;\n \n\t//...\n}\n```\n`background.setCallback(this);` 代码块就是我们说的设置回调。\n\n所以，这种情况就会存在这么一个隐式的引用链：Drawable持有View，而View持有Context，sBackground 是静态的，生命周期特别的长，于是就会导致了Context的溢出。\n\n解决办法： \n\n1.不用activity的context 而是用Application的Context； \n\n```java\nprivate static Drawable sBackground;\n\n@Override\nprotected void onCreate(Bundle state) {\n\tsuper.onCreate(state);\n\n\tTextView textView = new TextView(this.getApplication());\n\ttextView.setText(\"Leaks are bad\");\n\t\t\n\tif (sBackground == null) {\n\t\tsBackground = getResources().getDrawable(R.drawable.large_bitmap);\n\t}\n\t\t\n\ttextView.setBackgroundDrawable(sBackground);\n\t\n\tsetContentView(textView);\n}\n```\n2.在onDestroy()方法中，解除Activity与Drawable的绑定关系,从而去除Drawable对Activity的引用，使Context能够被回收； \n\n```java\n@Override\nprotected void onDestroy() {\n\tsuper.onDestroy();\n\t\t\t\n\tViewUtils.unbindDrawables(findViewById(android.R.id.content));\n\t\t\n\tSystem.gc();\n}\n\npublic static void unbindDrawables(View view) {\n\tif (view.getBackground() != null) {\n\t\tview.getBackground().setCallback(null);\n\t}\n\t\n\tif (view instanceof ViewGroup) {\n\t\tfor (int i = 0; i < ((ViewGroup) view).getChildCount(); i++) {\n\t\t\tunbindDrawables(((ViewGroup) view).getChildAt(i));\n\t\t}\n\t\t((ViewGroup) view).removeAllViews();\n\t}\n}\n```\n\n### 长周期内部类、匿名内部类长时间持有外部类引用导致相关资源无法释放\n\n长周期内部类、匿名内部类，如Handler，Thread，AsyncTask等。\n\nHandlerOutOfMemoryActivity所示的是Handler引发的内存溢出。\n\nThreadOutOfMemoryActivity所示的是Thread引发的内存溢出。\n\nAsyncTaskOutOfMemoryActivity所示的时AsyncTask引发的内存溢出。\n\n### Bitmap导致的内存溢出\n\n一般是因为尝试加载过大的图片到内存，或者是内存中已经存在的过多的图片，从而导致内存溢出。\n\n### 数据库Cursor未关闭\n\n正常情况下，如果查询得到的数据量较小时不会有内存问题，而且虚拟机能够保证Cusor最终会被释放掉，如果Cursor的数据量特表大，特别是如果里面有Blob信息时，应该保证Cursor占用的内存被及时的释放掉，而不是等待GC来处理。\n\n### 单例模式引用Context导致的内存泄露\n\n如果在某个Activity中使用 `Singleton instance = Singleton.getInstance(this);` 就会造成该Activity一直被 `Singleton` 引用着，不能释放。这时候，正确的做法是使用 `getApplicationContext()` 来替代 `Activity的Context` ，这样就能避免内存泄露。\n\n### 代码中一些细节\n\n>* 尽量使用9path\n>* Adapter要使用convertView\n>* 各种监听，广播等，注册的同时要记得取消注册\n>* 使用完对象要及时销毁，能使用局部变量的不要使用全局变量，功能用完成后要去掉对他的引用\n>* 切勿在循环调用的地方去产生对象，比如在getview()里new OnClicklistener(),这样的话，拖动的时候会new大量的对象出来。\n>* 使用Android推荐的数据结构，比如HashMap替换为SparseArray，避免使用枚举类型（在Android平台，枚举类型的内存消耗是Static常量的的2倍）\n>* 使用lint工具优化工程\n>* 字符串拼接使用StringBuilder或者StringBuffer\n>* 尽量使用静态匿名内部类，如果需要对外部类的引用，使用弱引用\n>* for循环的使用\n用\n`final int size = array.length; for(int i = 0; i< size;i++)`\n来替代：\n`for(int i =0;i < array.length;i++) `\n\n最后，整理了一些开发中可能会导致内存溢出的场景，放在com.cundong.memory.demo.wrong中，并且给出了优化方法，放在com.cundong.memory.demo.right中。\n\n## 4.截图\n\n![截屏][1]\n\n[1]: https://raw.githubusercontent.com/cundong/MemoryMonitor/master/screenshot/app.png\n" }, { "path": "app/build.gradle", "content": "apply plugin: 'com.android.application'\n\nandroid {\n compileSdkVersion 23\n buildToolsVersion \"23.0.2\"\n\n defaultConfig {\n applicationId \"com.cundong.memory\"\n minSdkVersion 14\n targetSdkVersion 23\n versionCode 2\n versionName \"1.2\"\n }\n\n buildTypes {\n release {\n minifyEnabled false\n proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'\n }\n }\n}\n\ndependencies {\n compile fileTree(dir: 'libs', include: ['*.jar'])\n compile project(':magnet')\n testCompile 'junit:junit:4.12'\n compile 'com.android.support:appcompat-v7:23.1.1'\n compile 'com.android.support:design:23.1.1'\n compile 'com.jaredrummler:android-processes:1.0.3'\n}" }, { "path": "app/src/main/AndroidManifest.xml", "content": "\n\n\n \n\n \n \n \n\n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n\n\n" }, { "path": "app/src/main/java/com/cundong/memory/App.java", "content": "package com.cundong.memory;\n\nimport android.app.Application;\nimport android.content.Context;\n\npublic class App extends Application {\n\n private static Context mContext;\n\n public static Context getAppContext() {\n return mContext;\n }\n\n @Override\n public void onCreate() {\n super.onCreate();\n mContext = this;\n }\n}" }, { "path": "app/src/main/java/com/cundong/memory/Constants.java", "content": "package com.cundong.memory;\n\nimport java.util.ArrayList;\n\npublic class Constants {\n\n public static final boolean SHOW_MEMORY_CLEAR = false;\n\n // TODO\n /**\n * 此处，改为被监控 total Pss 的 processName 列表\n *

\n * 微信：\n * com.tencent.mm\n * com.tencent.mm:TMAssistantDownloadSDKService\n * com.tencent.mm:push\n * com.tencent.mm:cuploader\n * com.tencent.mm:nospace\n * com.tencent.mm:tools\n * com.tencent.mm:sandbox\n * com.tencent.mm:exdevice\n */\n public static final ArrayList PROCESS_NAME_LIST = new ArrayList();\n\n static {\n PROCESS_NAME_LIST.add(\"com.tencent.mm\");\n PROCESS_NAME_LIST.add(\"com.tencent.mm:TMAssistantDownloadSDKService\");\n PROCESS_NAME_LIST.add(\"com.tencent.mm:push\");\n PROCESS_NAME_LIST.add(\"com.tencent.mm:cuploader\");\n PROCESS_NAME_LIST.add(\"com.tencent.mm:nospace\");\n PROCESS_NAME_LIST.add(\"com.tencent.mm:tools\");\n PROCESS_NAME_LIST.add(\"com.tencent.mm:sandbox\");\n PROCESS_NAME_LIST.add(\"com.tencent.mm:exdevice\");\n }\n}" }, { "path": "app/src/main/java/com/cundong/memory/MainActivity.java", "content": "package com.cundong.memory;\n\nimport android.annotation.TargetApi;\nimport android.app.ActivityManager;\nimport android.content.Context;\nimport android.content.Intent;\nimport android.net.Uri;\nimport android.os.Build;\nimport android.os.Bundle;\nimport android.provider.Settings;\nimport android.support.v7.app.AppCompatActivity;\nimport android.view.View;\nimport android.widget.Button;\nimport android.widget.Toast;\n\nimport com.cundong.memory.service.CoreService;\nimport com.cundong.memory.service.EmptyService;\nimport com.cundong.memory.util.MemoryUtil;\n\nimport java.util.List;\n\npublic class MainActivity extends AppCompatActivity {\n\n private static final int OVERLAY_PERMISSION_REQ_CODE = 1;\n\n private Button mButton1, mButton2, mButton3, mButton4;\n\n @Override\n protected void onCreate(Bundle savedInstanceState) {\n super.onCreate(savedInstanceState);\n setContentView(R.layout.activity_main);\n\n mButton1 = (Button) findViewById(R.id.button1);\n mButton2 = (Button) findViewById(R.id.button2);\n mButton3 = (Button) findViewById(R.id.button3);\n mButton4 = (Button) findViewById(R.id.button4);\n\n mButton3.setVisibility(Constants.SHOW_MEMORY_CLEAR ? View.VISIBLE : View.GONE);\n mButton4.setVisibility(Constants.SHOW_MEMORY_CLEAR ? View.VISIBLE : View.GONE);\n\n mButton1.setOnClickListener(new View.OnClickListener() {\n\n @Override\n public void onClick(View v) {\n\n try2StartMonitor();\n }\n });\n\n mButton2.setOnClickListener(new View.OnClickListener() {\n\n @Override\n public void onClick(View v) {\n Intent intent = new Intent(MainActivity.this, CoreService.class);\n intent.putExtra(\"action\", 2);\n startService(intent);\n\n finish();\n }\n });\n\n mButton3.setOnClickListener(new View.OnClickListener() {\n\n @Override\n public void onClick(View v) {\n Toast.makeText(getApplicationContext(), \"clearMemory\", Toast.LENGTH_LONG).show();\n MemoryUtil.clearMemory(getApplicationContext());\n }\n });\n\n mButton4.setOnClickListener(new View.OnClickListener() {\n\n @Override\n public void onClick(View v) {\n Intent intent = new Intent(MainActivity.this, EmptyService.class);\n startService(intent);\n }\n });\n }\n\n @TargetApi(Build.VERSION_CODES.M)\n private void try2StartMonitor() {\n if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && !Settings.canDrawOverlays(this)) {\n\n Toast.makeText(this, R.string.permission_err, Toast.LENGTH_LONG).show();\n\n Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION, Uri.parse(\"package:\" + getPackageName()));\n startActivityForResult(intent, OVERLAY_PERMISSION_REQ_CODE);\n } else {\n Intent intent = new Intent(MainActivity.this, CoreService.class);\n intent.putExtra(\"action\", 1);\n startService(intent);\n\n finish();\n }\n }\n\n @Override\n protected void onResume() {\n super.onResume();\n\n boolean isServiceRunning = isServiceRunning(getPackageName() + \".service.CoreService\");\n\n mButton1.setVisibility(isServiceRunning ? View.GONE : View.VISIBLE);\n mButton2.setVisibility(isServiceRunning ? View.VISIBLE : View.GONE);\n }\n\n @TargetApi(Build.VERSION_CODES.M)\n @Override\n protected void onActivityResult(int requestCode, int resultCode, Intent data) {\n if (requestCode == OVERLAY_PERMISSION_REQ_CODE) {\n if (!Settings.canDrawOverlays(this)) {\n Toast.makeText(this, R.string.permission_err, Toast.LENGTH_SHORT).show();\n } else {\n Intent intent = new Intent(MainActivity.this, CoreService.class);\n intent.putExtra(\"action\", 1);\n startService(intent);\n\n finish();\n }\n }\n }\n\n /**\n * 使用Application context来调用getSystemService，避免内存泄漏\n *\n * @param className\n * @return\n */\n private boolean isServiceRunning(String className) {\n\n ActivityManager activityManager = (ActivityManager) App.getAppContext().getSystemService(Context.ACTIVITY_SERVICE);\n List serviceList = activityManager.getRunningServices(100);\n\n if (serviceList == null || serviceList.size() <= 0) {\n return false;\n }\n\n for (ActivityManager.RunningServiceInfo serviceInfo : serviceList) {\n\n String serviceName = serviceInfo.service.getClassName();\n\n if (serviceName.equals(className)) {\n return true;\n }\n }\n\n return false;\n }\n}" }, { "path": "app/src/main/java/com/cundong/memory/demo/right/AsyncTaskOutOfMemoryActivity.java", "content": "package com.cundong.memory.demo.right;\n\nimport java.lang.ref.WeakReference;\n\nimport android.app.Activity;\nimport android.graphics.Bitmap;\nimport android.os.AsyncTask;\nimport android.os.Bundle;\nimport android.widget.ImageView;\n\nimport com.cundong.memory.util.BitmapUtils;\nimport com.cundong.memory.R;\n\n/**\n * AsyncTask引发的内存溢出解决办法\n * \n * BitmapWorkerTask内部采用弱引用保存Context引用\n * \n */\npublic class AsyncTaskOutOfMemoryActivity extends Activity {\n\t\n\tprivate ImageView mImageView;\n\t\n\t@Override\n\tprotected void onCreate(Bundle state) {\n\t\tsuper.onCreate(state);\n\t\tthis.setContentView(R.layout.activity_demo);\n\t\t\n\t\tmImageView = (ImageView) findViewById(R.id.image);\n\t\t\n\t\tBitmapWorkerTask task = new BitmapWorkerTask(mImageView);\n\t task.execute(R.drawable.large_bitmap);\n\t}\n\t\n\tclass BitmapWorkerTask extends AsyncTask {\n\t private final WeakReference imageViewReference;\n\t private int data = 0;\n\n\t public BitmapWorkerTask(ImageView imageView) {\n\t // Use a WeakReference to ensure the ImageView can be garbage collected\n\t imageViewReference = new WeakReference<>(imageView);\n\t }\n\n\t // Decode image in background.\n\t @Override\n\t protected Bitmap doInBackground(Integer... params) {\n\t data = params[0];\n\t return BitmapUtils.decodeSampledBitmapFromResource(getResources(), data, 100, 100);\n\t }\n\n\t // Once complete, see if ImageView is still around and set bitmap.\n\t @Override\n\t protected void onPostExecute(Bitmap bitmap) {\n\t if (imageViewReference != null && bitmap != null) {\n\t final ImageView imageView = imageViewReference.get();\n\t if (imageView != null) {\n\t imageView.setImageBitmap(bitmap);\n\t }\n\t }\n\t }\n\t}\n}" }, { "path": "app/src/main/java/com/cundong/memory/demo/right/HandlerOutOfMemoryActivity.java", "content": "package com.cundong.memory.demo.right;\n\nimport java.lang.ref.WeakReference;\n\nimport android.app.Activity;\nimport android.os.Bundle;\nimport android.os.Handler;\nimport android.os.Message;\n\nimport com.cundong.memory.R;\n\n/**\n * 解决Handler引发的内存溢出\n * \n * 不使用非静态的内部类，改为使用静态内部类，当静态内部类中需要调用外部的Activity时，改用弱引用。\n * \n */\npublic class HandlerOutOfMemoryActivity extends Activity {\n\t\n\tprivate final MyHandler mHandler = new MyHandler(this);\n\n\tprivate static class MyHandler extends Handler {\n\t\tprivate final WeakReference mActivity;\n\n\t\tpublic MyHandler(HandlerOutOfMemoryActivity activity) {\n\t\t\tmActivity = new WeakReference<>(activity);\n\t\t}\n\n\t\t@Override\n\t\tpublic void handleMessage(Message msg) {\n\t\t\tHandlerOutOfMemoryActivity activity = mActivity.get();\n\t\t\tif (activity != null) {\n\t\t\t\t/* ... */\n\t\t\t}\n\t\t}\n\t}\n\n\tprivate static final Runnable sRunnable = new Runnable() {\n\t\t@Override\n\t\tpublic void run() { \n\t\t\t/* ... */\n\t\t}\n\t};\n\n\t@Override\n\tprotected void onCreate(Bundle savedInstanceState) {\n\t\tsuper.onCreate(savedInstanceState);\n\t\tthis.setContentView(R.layout.activity_outofmemory_list);\n\t\t\n\t\tmHandler.postDelayed(sRunnable, 1000 * 60 * 10);\n\n\t\tfinish();\n\t}\n}" }, { "path": "app/src/main/java/com/cundong/memory/demo/right/OneStaticOutOfMemoryActivity.java", "content": "package com.cundong.memory.demo.right;\n\nimport android.app.Activity;\nimport android.graphics.drawable.Drawable;\nimport android.os.Bundle;\nimport android.widget.TextView;\n\nimport com.cundong.memory.R;\n\n/**\n * 解决static变量引发的内存溢出\n * \n * 1.不用activity的context 而是用application的context\n * \n */\npublic class OneStaticOutOfMemoryActivity extends Activity {\n\t\n\tprivate static Drawable sBackground;\n\n\t@Override\n\tprotected void onCreate(Bundle state) {\n\t\tsuper.onCreate(state);\n\n\t\tTextView label = new TextView(this.getApplication());\n\t\tlabel.setText(\"Leaks are bad\");\n\t\t\n\t\tif (sBackground == null) {\n\t\t\tsBackground = getResources().getDrawable(R.drawable.large_bitmap);\n\t\t}\n\t\t\n\t\tlabel.setBackgroundDrawable(sBackground);\n\t\t\n\t\tsetContentView(label);\n\t}\n}" }, { "path": "app/src/main/java/com/cundong/memory/demo/right/OneThreadOutOfMemoryActivity.java", "content": "package com.cundong.memory.demo.right;\n\nimport java.lang.ref.WeakReference;\n\nimport android.app.Activity;\nimport android.content.Context;\nimport android.os.Bundle;\n\nimport com.cundong.memory.R;\n\n/**\n * 解决Thread引发的内存溢出\n * \n * 解决办法：\n * \n * 在线程内部采用弱引用保存Context引用\n * \n */\npublic class OneThreadOutOfMemoryActivity extends Activity {\n\t\n\tprivate Context mContext;\n\t\n\t@Override\n\tprotected void onCreate(Bundle state) {\n\t\tsuper.onCreate(state);\n\t\tthis.setContentView(R.layout.activity_demo);\n\t\t\n\t\tmContext = this.getApplicationContext();\n\t\t\n\t\tnew MyThread().start();\n\t}\n\t\n\tprivate void releaseZip(WeakReference context){\n\t\t/* do something */\n\t}\n\t\n\tprivate class MyThread extends Thread {\n\t\t@Override\n\t\tpublic void run() {\n\t\t\tsuper.run();\n\n\t\t\ttry {\n\t\t\t\tThread.sleep(1000 * 60 * 2);\n\t\t\t} catch (InterruptedException e) {\n\t\t\t\te.printStackTrace();\n\t\t\t}\n\n\t\t\t/* do something */\n\t\t\treleaseZip(new WeakReference(mContext));\n\t\t}\n\t}\n}" }, { "path": "app/src/main/java/com/cundong/memory/demo/right/TwoStaticOutOfMemoryActivity.java", "content": "package com.cundong.memory.demo.right;\n\nimport android.app.Activity;\nimport android.graphics.drawable.Drawable;\nimport android.os.Bundle;\nimport android.widget.TextView;\n\nimport com.cundong.memory.util.ViewUtils;\nimport com.cundong.memory.R;\n\n/**\n * 解决static变量引发的内存溢出\n * \n * 2.在 onDestroy() 方法中，解除 Activity 和 biamap（drawble）的绑定关系,从而去除bitmap对activity 引用，让系统适时的去回收\n * \n */\npublic class TwoStaticOutOfMemoryActivity extends Activity {\n\t\n\tprivate static Drawable sBackground;\n\n\t@Override\n\tprotected void onCreate(Bundle state) {\n\t\tsuper.onCreate(state);\n\n\t\tTextView label = new TextView(this);\n\t\tlabel.setText(\"Leaks are bad\");\n\t\t\n\t\tif (sBackground == null) {\n\t\t\tsBackground = getResources().getDrawable(R.drawable.large_bitmap);\n\t\t}\n\t\t\n\t\tlabel.setBackgroundDrawable(sBackground);\n\t\t\n\t\tsetContentView(label);\n\t}\n\n\t@Override\n\tprotected void onDestroy() {\n\t\tsuper.onDestroy();\n\t\t\t\n\t\tViewUtils.unbindDrawables(findViewById(android.R.id.content));\n\t\t\n\t\tSystem.gc();\n\t}\n}" }, { "path": "app/src/main/java/com/cundong/memory/demo/right/TwoThreadOutOfMemoryActivity.java", "content": "package com.cundong.memory.demo.right;\n\nimport java.lang.ref.WeakReference;\n\nimport android.app.Activity;\nimport android.content.Context;\nimport android.os.Bundle;\n\nimport com.cundong.memory.R;\n\n/**\n * 解决Thread引发的内存溢出\n * \n * 1.MyThread改为静态内部类\n */\npublic class TwoThreadOutOfMemoryActivity extends Activity {\n\t\n\t@Override\n\tprotected void onCreate(Bundle state) {\n\t\tsuper.onCreate(state);\n\t\tthis.setContentView(R.layout.activity_demo);\n\t\t\n\t\tnew MyThread(this).start();\n\t}\n\t\n\tprivate static void releaseZip(Context context){\n\t\t/* do something */\n\t}\n\t\n\tprivate static class MyThread extends Thread {\n\t\t\n\t\tprivate final WeakReference mActivity;\n\n\t\tpublic MyThread(TwoThreadOutOfMemoryActivity activity) {\n\t\t\tmActivity = new WeakReference<>(activity);\n\t\t}\n\t\t\n\t\t@Override\n\t\tpublic void run() {\n\t\t\tsuper.run();\n\n\t\t\ttry {\n\t\t\t\tThread.sleep(1000 * 60 * 2);\n\t\t\t} catch (InterruptedException e) {\n\t\t\t\te.printStackTrace();\n\t\t\t}\n\n\t\t\t/* do something */\n\t\t\treleaseZip(mActivity.get());\n\t\t}\n\t}\n}" }, { "path": "app/src/main/java/com/cundong/memory/demo/wrong/AsyncTaskOutOfMemoryActivity.java", "content": "package com.cundong.memory.demo.wrong;\n\nimport android.app.Activity;\nimport android.graphics.Bitmap;\nimport android.os.AsyncTask;\nimport android.os.Bundle;\nimport android.widget.ImageView;\n\nimport com.cundong.memory.util.BitmapUtils;\nimport com.cundong.memory.R;\n\n/**\n * AsyncTask引发的内存溢出\n * \n * 当前情况：\n * \n * 1.\n * 内部类BitmapWorkerTask，持有对外部AsyncTaskOutOfMemoryActivity的隐式引用\n * \n * 2.\n * 如果我们切换横竖屏，默认就会销毁当前Activity，而这个Activity却被BitmapWorkerTask所持有\n * \n * 于是就出现了溢出。\n * \n * \n * 解决办法：\n * \n * BitmapWorkerTask内部采用弱引用保存Context引用\n * \n */\npublic class AsyncTaskOutOfMemoryActivity extends Activity {\n\t\n\tprivate ImageView mImageView;\n\t\n\t@Override\n\tprotected void onCreate(Bundle state) {\n\t\tsuper.onCreate(state);\n\t\tthis.setContentView(R.layout.activity_demo);\n\t\t\n\t\tmImageView = (ImageView) findViewById(R.id.image);\n\t\t\n\t\tBitmapWorkerTask task = new BitmapWorkerTask();\n\t task.execute(R.drawable.large_bitmap);\n\t}\n\t\n\tclass BitmapWorkerTask extends AsyncTask {\n\t \n\t private int data = 0;\n\n\t // Decode image in background.\n\t @Override\n\t protected Bitmap doInBackground(Integer... params) {\n\t data = params[0];\n\t return BitmapUtils.decodeSampledBitmapFromResource(getResources(), data, 100, 100);\n\t }\n\n\t // Once complete, see if ImageView is still around and set bitmap.\n\t @Override\n\t protected void onPostExecute(Bitmap bitmap) {\n\t if (bitmap != null) {\n\t \tmImageView.setImageBitmap(bitmap);\n\t }\n\t }\n\t}\n}" }, { "path": "app/src/main/java/com/cundong/memory/demo/wrong/HandlerOutOfMemoryActivity.java", "content": "package com.cundong.memory.demo.wrong;\n\nimport android.app.Activity;\nimport android.os.Bundle;\nimport android.os.Handler;\nimport android.os.Message;\n\nimport com.cundong.memory.R;\n\n/**\n * Handler引发的内存溢出\n * \n * 1.\n * 当一个Android应用启动的时候，会自动创建一个供主线程使用的Looper实例，这个Looper实例负责一个一个的处理消息队列中的消息对象，它的生命周期和当前应用\n * 的生命周期是一样的。\n * \n * 2.\n * 当Handler在主线程中初始化之后，发送一个消息(target为当前Handler)至消息队列，这个消息对象就已经包含了Handler实例的引用，只有这样，Looper在处理这条消息的时候，才可以\n * 调用Handler的handlerMessage(Message)来完成消息的处理。\n * \n * 3.非静态的内部类和匿名内部类，都会隐式的持有一个外部类的引用。\n * \n * 由于这3个原因。\n * \n * 当Activity finish掉，被延迟的消息会存在消息队列中10分钟，这个消息中又包含了Handler的引用，Handler是一个匿名内部类，又隐式的持有外部Activity的引用，导致\n * 其无法回收，进一步导致Activity持有的很多资源都无法回收，也就是内存泄露了。\n * \n * 正确示例：com.cundong.memory.right.HandlerOutOfMemoryActivity\n * \n */\npublic class HandlerOutOfMemoryActivity extends Activity {\n\t\n\tprivate final Handler mHandler = new Handler() {\n\n\t\t@Override\n\t\tpublic void handleMessage(Message msg) {\n\t\t\t/* ... */\n\t\t}\n\t};\n\n\t@Override\n\tprotected void onCreate(Bundle savedInstanceState) {\n\t\tsuper.onCreate(savedInstanceState);\n\t\tthis.setContentView(R.layout.activity_outofmemory_list);\n\n\t\t// Post a message and delay its execution for 10 minutes.\n\t\tmHandler.postDelayed(new Runnable() {\n\t\t\t@Override\n\t\t\tpublic void run() { \n\t\t\t\t\n\t\t\t\t/* ... */\n\t\t\t}\n\t\t}, 1000 * 60 * 10);\n\t\t\n\t\tfinish();\n\t}\n}" }, { "path": "app/src/main/java/com/cundong/memory/demo/wrong/MemoryChurnActivity.java", "content": "package com.cundong.memory.demo.wrong;\n\nimport android.app.Activity;\nimport android.graphics.Bitmap;\nimport android.graphics.BitmapFactory;\nimport android.os.Bundle;\nimport android.util.Log;\nimport android.view.View;\nimport android.widget.Button;\n\nimport com.cundong.memory.R;\nimport com.cundong.memory.util.MemoryUtil;\n\n/**\n * 内存抖动\n *\n * 在短时间内大量的对象被创建又马上被释放，瞬间产生大量的对象会严重占用Young Generation的内存区域，当达到阀值，剩余空间不够的时候，\n * 会触发GC从而导致刚产生的对象又很快被回收。即使每次分配的对象占用了很少的内存，但是他们叠加在一起会增加Heap的压力，从而触发更多其他类型的GC。\n *\n * 这个操作有可能会影响到帧率，并使得用户感知到性能问题。\n *\n * Created by cundong on 2015/12/28.\n */\npublic class MemoryChurnActivity extends Activity {\n\n private Button mButton;\n\n @Override\n protected void onCreate(Bundle savedInstanceState) {\n super.onCreate(savedInstanceState);\n this.setContentView(R.layout.activity_test);\n\n mButton = (Button) findViewById(R.id.button);\n mButton.setOnClickListener(new View.OnClickListener() {\n @Override\n public void onClick(View v) {\n new Thread() {\n @Override\n public void run() {\n super.run();\n\n for( int i=0; i<100; i++) {\n Bitmap bmp = BitmapFactory.decodeResource(getResources(), R.drawable.large_img);\n\n int rowBytes = bmp.getRowBytes();\n int height = bmp.getHeight();\n\n long memSize = rowBytes * height;\n Log.d(\"@Cundong\", \"memSize =\" + memSize + \"B =\" + memSize * 1.0 / 1024 / 1024 +\" M\");\n Log.d(\"@Cundong\", \"getUsedPercentValue:\" + MemoryUtil.getUsedPercentValue());\n }\n\n /**\n java.lang.OutOfMemoryError: Failed to allocate a 47 byte allocation with 0 free bytes and 3GB until OOM\n at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)\n at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:609)\n at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:444)\n at android.graphics.BitmapFactory.decodeResource(BitmapFactory.java:467)\n at android.graphics.BitmapFactory.decodeResource(BitmapFactory.java:497)\n at com.cundong.memory.demo.wrong.MemoryChurnActivity$1$1.run(MemoryChurnActivity.java:42)\n */\n }\n } .start();\n }\n });\n }\n}" }, { "path": "app/src/main/java/com/cundong/memory/demo/wrong/StaticOutOfMemoryActivity.java", "content": "package com.cundong.memory.demo.wrong;\n\nimport android.app.Activity;\nimport android.graphics.drawable.Drawable;\nimport android.os.Bundle;\nimport android.widget.TextView;\n\nimport com.cundong.memory.R;\n\n/**\n * static变量引发的内存溢出\n * \n * 如果一个变量为static变量，它就属于整个类，而不是类的具体实例，所以static变量的生命周期是特别的长，如果static变量引用了一些资源耗费过多\n * 的实例，例如Context，就有内存溢出的危险。\n * \n * \n * Google开发者博客，给出了一个例子：http://android-developers.blogspot.jp/2009/01/avoiding-memory-leaks.html\n * 专门介绍长时间的引用Context导致内存溢出的情况。\n * \n * 这种情况：\n * \n * 静态的sBackground变量，虽然没有显式的持有Context的引用，但是：\n * \n * 当我们执行view.setBackgroundDrawable(Drawable drawable);之后。\n * \n * Drawable会将View设置为一个回调（通过setCallback()方法），所以就会存在这么一个隐式的引用链：Drawable持有View，View持有Context\n * \n * sBackground是静态的，生命周期特别的长，就会导致了Context的溢出。\n * \n * 解决办法：\n * \n * 1.不用activity的context 而是用Application的Context\n * \n * 2.在onDestroy()方法中，解除Activity与Drawable的绑定关系,从而去除Drawable对Activity的引用，使Context能够被回收\n * \n */\npublic class StaticOutOfMemoryActivity extends Activity {\n\t\n\tprivate static Drawable sBackground;\n\n\t@Override\n\tprotected void onCreate(Bundle state) {\n\t\tsuper.onCreate(state);\n\n\t\tTextView textView = new TextView(this);\n\t\ttextView.setText(\"Leaks are bad\");\n\t\t\n\t\tif (sBackground == null) {\n\t\t\tsBackground = getResources().getDrawable(R.drawable.large_bitmap);\n\t\t}\n\t\t\n\t\ttextView.setBackgroundDrawable(sBackground);\n\t\t\n\t\tsetContentView(textView);\n\t}\n}" }, { "path": "app/src/main/java/com/cundong/memory/demo/wrong/ThreadOutOfMemoryActivity.java", "content": "package com.cundong.memory.demo.wrong;\n\nimport java.lang.ref.WeakReference;\n\nimport android.app.Activity;\nimport android.content.Context;\nimport android.os.Bundle;\n\nimport com.cundong.memory.R;\n\n/**\n * Thread引发的内存溢出\n * \n * 当前情况：\n * \n * 1.\n * 内部类MyThread，持有对外部ThreadOutOfMemoryActivity的隐式引用\n * \n * 2.\n * 如果我们切换横竖屏，默认就会销毁当前Activity，而这个Activity却被MyThread所持有\n * \n * 于是就出现了溢出。\n * \n * \n * 解决办法：\n * \n * 1.MyThread改为静态内部类\n * \n * 2.在线程内部采用弱引用保存Context引用\n * \n */\npublic class ThreadOutOfMemoryActivity extends Activity {\n\t\n\tprivate Context mContext;\n\t\n\t@Override\n\tprotected void onCreate(Bundle state) {\n\t\tsuper.onCreate(state);\n\t\tthis.setContentView(R.layout.activity_demo);\n\t\t\n\t\tmContext = this.getApplicationContext();\n\t\t\n\t\tnew MyThread().start();\n\t}\n\t\n\tprivate void releaseZip(WeakReference context){\n\t\t/* do something */\n\t}\n\t\n\tprivate class MyThread extends Thread {\n\t\t@Override\n\t\tpublic void run() {\n\t\t\tsuper.run();\n\n\t\t\ttry {\n\t\t\t\tThread.sleep(1000 * 60 * 2);\n\t\t\t} catch (InterruptedException e) {\n\t\t\t\te.printStackTrace();\n\t\t\t}\n\n\t\t\t/* do something */\n\t\t\treleaseZip(new WeakReference<>(mContext));\n\t\t}\n\t}\n}" }, { "path": "app/src/main/java/com/cundong/memory/service/CoreService.java", "content": "package com.cundong.memory.service;\n\nimport android.app.Service;\nimport android.content.Context;\nimport android.content.Intent;\nimport android.os.Bundle;\nimport android.os.Handler;\nimport android.os.IBinder;\nimport android.os.Message;\nimport android.util.Log;\nimport android.view.LayoutInflater;\nimport android.view.View;\nimport android.view.View.OnClickListener;\nimport android.widget.ImageButton;\nimport android.widget.TextView;\nimport android.widget.Toast;\n\nimport com.cundong.memory.Constants;\nimport com.cundong.memory.MainActivity;\nimport com.cundong.memory.R;\nimport com.cundong.memory.util.MemoryUtil;\nimport com.premnirmal.Magnet.IconCallback;\nimport com.premnirmal.Magnet.Magnet;\n\nimport java.lang.ref.WeakReference;\nimport java.text.DecimalFormat;\nimport java.util.HashMap;\nimport java.util.Iterator;\nimport java.util.Map;\nimport java.util.Timer;\nimport java.util.TimerTask;\n\n/**\n * 类说明： \t后台轮询service 每1秒钟更新一次通知栏 更新内存\n * \n * @date \t2015-4-18\n * @version 1.0\n */\npublic class CoreService extends Service implements IconCallback {\n\n\tprivate static final String TAG = \"CoreService\";\n\n\tprivate Timer mTimer;\n\t\n\tprivate Magnet mMagnet;\n\n\tprivate View mIconView = null;\n\tprivate View mMemoryClearView;\n\n\tprivate TextView mDescView;\n\tprivate ImageButton mClearBtn, mSettingBtn;\n\n\tprivate InnerHandler mHandler;\n\n\t@Override\n\tpublic void onCreate() {\n\t\tsuper.onCreate();\n\n\t\tmIconView = getIconView();\n\t\tmDescView = (TextView) mIconView.findViewById(R.id.content);\n\t\tmMemoryClearView = mIconView.findViewById(R.id.memory_clear_view);\n\t\tmMemoryClearView.setVisibility(Constants.SHOW_MEMORY_CLEAR ? View.VISIBLE : View.GONE);\n\n\t\tmClearBtn = (ImageButton) mIconView.findViewById(R.id.clear_btn);\n\t\tmClearBtn.setOnClickListener( new OnClickListener(){\n\n\t\t\t@Override\n\t\t\tpublic void onClick(View v) {\n\t\t\t\t\n\t\t\t\tToast.makeText(getApplicationContext(), \"clearMemory\", Toast.LENGTH_SHORT).show();\n\t\t\t\tMemoryUtil.clearMemory(getApplicationContext());\n\t\t\t}\n\t\t});\n\t\t\n\t\tmSettingBtn = (ImageButton) mIconView.findViewById(R.id.setting_btn);\n\t\tmSettingBtn.setOnClickListener( new OnClickListener(){\n\n\t\t\t@Override\n\t\t\tpublic void onClick(View v) {\n\t\t\t\tToast.makeText(getApplicationContext(), \"test Setting\", Toast.LENGTH_SHORT).show();\n\t\t\t}\n\t\t});\n\n\t\tmMagnet = new Magnet.Builder(this)\n\t\t\t.setIconView(mIconView)\n\t\t\t.setIconCallback(this)\n\t\t\t.setRemoveIconResId(R.drawable.trash)\n\t\t\t.setRemoveIconShadow(R.drawable.bottom_shadow)\n\t\t\t.setShouldFlingAway(true)\n\t\t\t.setShouldStickToWall(true)\n\t\t\t.setRemoveIconShouldBeResponsive(true)\n\t\t\t.setInitialPosition(-100, -200)\n\t\t\t.build();\n\t\t\n\t\tmMagnet.show();\n\n\t\tmHandler = new InnerHandler(this);\n\t}\n\n\tprivate View getIconView() {\n\t\tLayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);\n\t\treturn inflater.inflate(R.layout.float_view, null);\n\t}\n\t\n\t@Override\n\tpublic IBinder onBind(Intent intent) {\n\t\treturn null;\n\t}\n\n\t@Override\n\tpublic int onStartCommand(Intent intent, int flags, int startId) {\n\n\t\tif (mTimer == null) {\n\t\t\tmTimer = new Timer();\n\t\t\tmTimer.scheduleAtFixedRate(new RefreshTask(), 0, 1000);\n\t\t}\n\n\t\tint action = intent != null ? intent.getIntExtra(\"action\", 0) : 0;\n\t\tif (action == 2) {\n\t\t\tmMagnet.destroy();\n\t\t\tthis.stopSelf();\n\t\t}\n\t\t\n\t\treturn super.onStartCommand(intent, flags, startId);\n\t}\n\n\t@Override\n\tpublic void onDestroy() {\n\n\t\tsuper.onDestroy();\n\n\t\tmTimer.cancel();\n\t\tmTimer = null;\n\t}\n\n\tclass RefreshTask extends TimerTask {\n\n\t\t@Override\n\t\tpublic void run() {\n\n\t\t\tString usedPercentValue = MemoryUtil.getUsedPercentValue();\n\t\t\tlong availableMemory = MemoryUtil.getAvailableMemory();\n\t\t\tHashMap totalPssMap = MemoryUtil.getTotalPss(Constants.PROCESS_NAME_LIST);\n\n\t\t\tfloat memory = availableMemory / (float) 1024 / (float) 1024;\n\t\t\tDecimalFormat decimalFormat = new DecimalFormat(\"##0.00\");\n\t\t\t\n\t\t\tfinal String[] content = new String[] {\n\t\t\t\t\tgetString(R.string.used_percent_value, usedPercentValue),\n\t\t\t\t\tgetString(R.string.available_memory, decimalFormat.format(memory)), getString(R.string.total_pss)};\n\n\t\t\tStringBuffer sb = new StringBuffer();\n\t\t\tsb.append(content[0]).append(\",\").append(content[1]).append(\"\\r\\n\").append(content[2]);\n\n\t\t\tIterator iterator = totalPssMap.entrySet().iterator();\n\t\t\twhile(iterator.hasNext()) {\n\t\t\t\tMap.Entry entry = (Map.Entry) iterator.next();\n\t\t\t\tentry.getKey();\n\t\t\t\tsb.append(entry.getKey()).append(\"=\").append(\"\\r\\n\").append(entry.getValue()).append(\"\\r\\n\");\n\t\t\t}\n\n\t\t\tBundle data = new Bundle();\n\t\t\tdata.putString(\"content\", sb.toString());\n\t\t\t\n\t\t\tMessage message = mHandler.obtainMessage(1);\n message.what = 1; \n message.setData(data);\n\n\t\t\tmHandler.sendMessage(message);\n\t\t}\n\t}\n\n\t@Override\n\tpublic void onFlingAway() {\n\t\tLog.i(TAG, \"onFlingAway\");\n\t}\n\n\t@Override\n\tpublic void onMove(float x, float y) {\n\t\tLog.i(TAG, \"onMove(\" + x + \",\" + y + \")\");\n\t}\n\n\t@Override\n\tpublic void onIconClick(View icon, float iconXPose, float iconYPose) {\n\t\tLog.i(TAG, \"onIconClick(..)\");\n\n\t\tIntent intent = new Intent(this, MainActivity.class);\n\t\tintent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);\n\t\tstartActivity(intent);\n\t}\n\n\t@Override\n\tpublic void onIconDestroyed() {\n\t\tLog.i(TAG, \"onIconDestroyed()\");\n\t\tstopSelf();\n\t}\n\n\tprivate static class InnerHandler extends Handler {\n\n\t\tprivate WeakReference ref;\n\n\t\tpublic InnerHandler(CoreService service) {\n\t\t\tref = new WeakReference<>(service);\n\t\t}\n\n\t\t@Override\n\t\tpublic void handleMessage(Message msg) {\n\t\t\tsuper.handleMessage(msg);\n\n\t\t\tCoreService service = ref.get();\n\t\t\tif (service == null) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tswitch (msg.what) {\n\t\t\t\tcase 1:\n\t\t\t\t\tBundle data = msg.getData();\n\t\t\t\t\tString content = data.getString(\"content\");\n\t\t\t\t\tservice.mDescView.setText(content);\n\n\t\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\t}\n}" }, { "path": "app/src/main/java/com/cundong/memory/service/EmptyService.java", "content": "package com.cundong.memory.service;\n\nimport android.app.Service;\nimport android.content.Intent;\nimport android.os.IBinder;\n\n/**\n * 一个空Service，仅仅用于测试一个空进程在dalvik、art上占用多少Total Pss\n */\npublic class EmptyService extends Service {\n\n public EmptyService() {\n }\n\n @Override\n public IBinder onBind(Intent intent) {\n return null;\n }\n\n @Override\n public void onCreate() {\n super.onCreate();\n }\n}" }, { "path": "app/src/main/java/com/cundong/memory/util/BitmapUtils.java", "content": "package com.cundong.memory.util;\n\nimport android.content.res.Resources;\nimport android.graphics.Bitmap;\nimport android.graphics.BitmapFactory;\n\npublic class BitmapUtils {\n\n public static Bitmap decodeSampledBitmapFromResource(Resources res, int resId,\n int reqWidth, int reqHeight) {\n\n // First decode with inJustDecodeBounds=true to check dimensions\n final BitmapFactory.Options options = new BitmapFactory.Options();\n options.inJustDecodeBounds = true;\n BitmapFactory.decodeResource(res, resId, options);\n\n // Calculate inSampleSize\n options.inSampleSize = calculateInSampleSize(options, reqWidth, reqHeight);\n\n // Decode bitmap with inSampleSize set\n options.inJustDecodeBounds = false;\n return BitmapFactory.decodeResource(res, resId, options);\n }\n\n public static int calculateInSampleSize(\n BitmapFactory.Options options, int reqWidth, int reqHeight) {\n // Raw height and width of image\n final int height = options.outHeight;\n final int width = options.outWidth;\n int inSampleSize = 1;\n\n if (height > reqHeight || width > reqWidth) {\n\n final int halfHeight = height / 2;\n final int halfWidth = width / 2;\n\n // Calculate the largest inSampleSize value that is a power of 2 and keeps both\n // height and width larger than the requested height and width.\n while ((halfHeight / inSampleSize) > reqHeight\n && (halfWidth / inSampleSize) > reqWidth) {\n inSampleSize *= 2;\n }\n }\n\n return inSampleSize;\n }\n}\n" }, { "path": "app/src/main/java/com/cundong/memory/util/Logger.java", "content": "package com.cundong.memory.util;\n\nimport android.util.Log;\n\npublic class Logger {\n\n\t/**\n\t * log tag\n\t */\n\tprivate String tag = \"Logger\";// application name\n\n\t// TODO 配置Log打开或关闭\n\t/**\n\t * debug or not\n\t */\n\tprivate static boolean debug = true;\n\n\tprivate static Logger instance = new Logger();\n\n\tprivate Logger() {\n\n\t}\n\n\tpublic static Logger getLogger() {\n\t\treturn instance;\n\t}\n\n\tprivate String getFunctionName() {\n\t\tStackTraceElement[] sts = Thread.currentThread().getStackTrace();\n\n\t\tif (sts == null) {\n\t\t\treturn null;\n\t\t}\n\n\t\tfor (StackTraceElement st : sts) {\n\t\t\tif (st.isNativeMethod()) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tif (st.getClassName().equals(Thread.class.getName())) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tif (st.getClassName().equals(this.getClass().getName())) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\treturn \"[\" + Thread.currentThread().getName() + \"(\" + Thread.currentThread().getId() + \"): \" + st.getFileName() + \":\" + st.getLineNumber() + \"]\";\n\t\t}\n\n\t\treturn null;\n\t}\n\n\tprivate String createMessage(String msg) {\n\t\tString functionName = getFunctionName();\n\t\tString message = (functionName == null ? msg : (functionName + \" - \" + msg));\n\t\treturn message;\n\t}\n\n\t/**\n\t * log.i\n\t */\n\tpublic void i(String msg) {\n\t\tif (debug) {\n\t\t\tString message = createMessage(msg);\n\t\t\tLog.i(tag, message);\n\t\t}\n\t}\n\n\t/**\n\t * log.v\n\t */\n\tpublic void v(String msg) {\n\t\tif (debug) {\n\t\t\tString message = createMessage(msg);\n\t\t\tLog.v(tag, message);\n\t\t}\n\t}\n\n\t/**\n\t * log.d\n\t */\n\tpublic void d(String msg) {\n\t\tif (debug) {\n\t\t\tString message = createMessage(msg);\n\t\t\tLog.d(tag, message);\n\t\t}\n\t}\n\n\t/**\n\t * log.e\n\t */\n\tpublic void e(String msg) {\n\t\t// if (debug) {\n\t\tString message = createMessage(msg);\n\t\tLog.e(tag, message);\n\t\t// }\n\t}\n\n\t/**\n\t * log.error\n\t */\n\tpublic void error(Exception e) {\n\t\tif (debug) {\n\t\t\tStringBuffer sb = new StringBuffer();\n\t\t\tString name = getFunctionName();\n\t\t\tStackTraceElement[] sts = e.getStackTrace();\n\n\t\t\tif (name != null) {\n\t\t\t\tsb.append(name + \" - \" + e + \"\\r\\n\");\n\t\t\t} else {\n\t\t\t\tsb.append(e + \"\\r\\n\");\n\t\t\t}\n\t\t\tif (sts != null && sts.length > 0) {\n\t\t\t\tfor (StackTraceElement st : sts) {\n\t\t\t\t\tif (st != null) {\n\t\t\t\t\t\tsb.append(\"[ \" + st.getFileName() + \":\" + st.getLineNumber() + \" ]\\r\\n\");\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tLog.e(tag, sb.toString());\n\t\t}\n\t}\n\n\t/**\n\t * log.d\n\t */\n\tpublic void w(String msg) {\n\t\tif (debug) {\n\t\t\tString message = createMessage(msg);\n\t\t\tLog.w(tag, message);\n\t\t}\n\t}\n\n\tpublic void setTag(String tag) {\n\t\tthis.tag = tag;\n\t}\n\n\t/**\n\t * set debug\n\t */\n\tpublic static void setDebug(boolean d) {\n\t\tdebug = d;\n\t}\n\n\tpublic static boolean isDebug() {\n\t\treturn debug;\n\t}\n}" }, { "path": "app/src/main/java/com/cundong/memory/util/MemoryUtil.java", "content": "package com.cundong.memory.util;\r\n\r\nimport java.io.BufferedReader;\r\nimport java.io.FileReader;\r\nimport java.io.IOException;\r\nimport java.util.ArrayList;\r\nimport java.util.HashMap;\r\nimport java.util.List;\r\n\r\nimport android.app.ActivityManager;\r\nimport android.app.ActivityManager.RunningAppProcessInfo;\r\nimport android.content.Context;\r\nimport android.os.Build;\r\nimport android.os.Debug.MemoryInfo;\r\nimport android.text.TextUtils;\r\nimport android.util.Log;\r\n\r\nimport com.cundong.memory.App;\r\nimport com.cundong.memory.Constants;\r\nimport com.jaredrummler.android.processes.ProcessManager;\r\nimport com.jaredrummler.android.processes.models.AndroidAppProcess;\r\n\r\n/**\r\n * 类说明： \t内存相关数据获取工具类\r\n *\r\n * @date \t2015-4-18\r\n * @version 1.0\r\n */\r\npublic class MemoryUtil {\r\n\r\n\t/**\r\n\t * getTotalPss，5.0+使用开源的android-processes解决方案，5.0以下使用系统api\r\n\t *\r\n\t * @param processNameList\r\n\t * @return\r\n\t */\r\n\tpublic static HashMap getTotalPss(ArrayList processNameList) {\r\n\r\n\t\tHashMap resultMap = new HashMap<>();\r\n\t\tActivityManager activityMgr = (ActivityManager) App.getAppContext().getSystemService(Context.ACTIVITY_SERVICE);\r\n\r\n\t\tif (Build.VERSION.SDK_INT >= 21) {\r\n\t\t\tList list = ProcessManager.getRunningAppProcesses();\r\n\r\n\t\t\tif (list != null) {\r\n\t\t\t\tfor (AndroidAppProcess processInfo : list) {\r\n\r\n\t\t\t\t\tif (processNameList.contains(processInfo.name)) {\r\n\t\t\t\t\t\tint pid = processInfo.pid;\r\n\t\t\t\t\t\tMemoryInfo[] memoryInfos = activityMgr.getProcessMemoryInfo(new int[]{pid});\r\n\r\n\t\t\t\t\t\tMemoryInfo memoryInfo = memoryInfos[0];\r\n\t\t\t\t\t\tint totalPss = memoryInfo.getTotalPss();\r\n\r\n\t\t\t\t\t\tresultMap.put(processInfo.name, new Long(totalPss));\r\n\t\t\t\t\t}\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t} else {\r\n\t\t\tList list = activityMgr.getRunningAppProcesses();\r\n\t\t\tif (list != null) {\r\n\t\t\t\tfor (RunningAppProcessInfo processInfo : list) {\r\n\r\n\t\t\t\t\tif (Constants.PROCESS_NAME_LIST.contains(processInfo.processName)) {\r\n\t\t\t\t\t\tint pid = processInfo.pid;\r\n\t\t\t\t\t\tMemoryInfo[] memoryInfos = activityMgr.getProcessMemoryInfo(new int[] { pid });\r\n\r\n\t\t\t\t\t\tMemoryInfo memoryInfo = memoryInfos[0];\r\n\t\t\t\t\t\tint totalPss = memoryInfo.getTotalPss();\r\n\r\n\t\t\t\t\t\tresultMap.put(processInfo.processName, new Long(totalPss));\r\n\t\t\t\t\t}\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\treturn resultMap;\r\n\t}\r\n\r\n\t/**\r\n\t * getTotalPss，5.0+使用开源的android-processes解决方案，5.0以下使用系统api\r\n\t *\r\n\t * @param processName\r\n\t * @return\r\n\t */\r\n\tpublic static long getTotalPss(String processName) {\r\n\r\n\t\tActivityManager activityMgr = (ActivityManager) App.getAppContext().getSystemService(Context.ACTIVITY_SERVICE);\r\n\r\n\t\tif (Build.VERSION.SDK_INT >= 21) {\r\n\t\t\tList list = ProcessManager.getRunningAppProcesses();\r\n\r\n\t\t\tif (list != null) {\r\n\t\t\t\tfor (AndroidAppProcess processInfo : list) {\r\n\t\t\t\t\tif (processInfo.name.equals(processName)) {\r\n\t\t\t\t\t\tint pid = processInfo.pid;\r\n\t\t\t\t\t\tMemoryInfo[] memoryInfos = activityMgr.getProcessMemoryInfo(new int[]{pid});\r\n\r\n\t\t\t\t\t\tMemoryInfo memoryInfo = memoryInfos[0];\r\n\t\t\t\t\t\tint totalPss = memoryInfo.getTotalPss();\r\n\r\n\t\t\t\t\t\treturn totalPss;\r\n\t\t\t\t\t}\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t} else {\r\n\t\t\tList list = activityMgr.getRunningAppProcesses();\r\n\t\t\tif (list != null) {\r\n\t\t\t\tfor (RunningAppProcessInfo processInfo : list) {\r\n\r\n\t\t\t\t\tif (processInfo.processName.equals(processName)) {\r\n\t\t\t\t\t\tint pid = processInfo.pid;\r\n\t\t\t\t\t\tMemoryInfo[] memoryInfos = activityMgr.getProcessMemoryInfo(new int[] { pid });\r\n\r\n\t\t\t\t\t\tMemoryInfo memoryInfo = memoryInfos[0];\r\n\t\t\t\t\t\tint totalPss = memoryInfo.getTotalPss();\r\n\r\n\t\t\t\t\t\treturn totalPss;\r\n\t\t\t\t\t}\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\treturn -1;\r\n\t}\r\n\r\n\t/**\r\n\t * 计算已使用内存的百分比\r\n\t * \r\n\t */\r\n\tpublic static String getUsedPercentValue() {\r\n\t\tString dir = \"/proc/meminfo\";\r\n\t\ttry {\r\n\t\t\tFileReader fr = new FileReader(dir);\r\n\t\t\tBufferedReader br = new BufferedReader(fr, 2048);\r\n\t\t\tString memoryLine = br.readLine();\r\n\t\t\tString subMemoryLine = memoryLine.substring(memoryLine\r\n\t\t\t\t\t.indexOf(\"MemTotal:\"));\r\n\t\t\tbr.close();\r\n\t\t\tlong totalMemorySize = Integer.parseInt(subMemoryLine.replaceAll(\r\n\t\t\t\t\t\"\\\\D+\", \"\"));\r\n\t\t\tlong availableSize = getAvailableMemory() / 1024;\r\n\t\t\tint percent = (int) ((totalMemorySize - availableSize)\r\n\t\t\t\t\t/ (float) totalMemorySize * 100);\r\n\t\t\treturn percent + \"%\";\r\n\t\t} catch (IOException e) {\r\n\t\t\te.printStackTrace();\r\n\t\t}\r\n\t\treturn \"\";\r\n\t}\r\n\t\r\n\t/**\r\n\t * 获取可用内存\r\n\t * \r\n\t */\r\n\tpublic static long getAvailableMemory() {\r\n\r\n\t\tActivityManager activityManager = (ActivityManager) App.getAppContext()\r\n\t\t\t\t.getSystemService(Context.ACTIVITY_SERVICE);\r\n\r\n\t\tActivityManager.MemoryInfo mi = new ActivityManager.MemoryInfo();\r\n\t\tactivityManager.getMemoryInfo(mi);\r\n\r\n\t\treturn mi.availMem;\r\n\t}\r\n\r\n\tpublic static void clearMemory(Context context) {\r\n\t\tActivityManager activityManger = (ActivityManager) App.getAppContext().getSystemService(Context.ACTIVITY_SERVICE);\r\n\r\n\r\n\t\tif (Build.VERSION.SDK_INT >= 21) {\r\n\t\t\tList list = ProcessManager.getRunningAppProcesses();\r\n\r\n\t\t\tif (list != null) {\r\n\t\t\t\tfor (AndroidAppProcess processInfo : list) {\r\n\r\n\t\t\t\t\tint myPid = android.os.Process.myPid();\r\n\r\n\t\t\t\t\tif(myPid == processInfo.pid) {\r\n\t\t\t\t\t\tcontinue;\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\tif (!processInfo.foreground) {\r\n\t\t\t\t\t\tactivityManger.killBackgroundProcesses(processInfo.getPackageName());\r\n\t\t\t\t\t}\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t} else {\r\n\t\t\tList list = activityManger.getRunningAppProcesses();\r\n\r\n\t\t\tif (list != null) {\r\n\t\t\t\tfor (int i = 0; i < list.size(); i++) {\r\n\t\t\t\t\tActivityManager.RunningAppProcessInfo appProcessInfo = list.get(i);\r\n\r\n\t\t\t\t\tString[] pkgList = appProcessInfo.pkgList;\r\n\r\n\t\t\t\t\tif (appProcessInfo.importance >= ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND) {\r\n\r\n\t\t\t\t\t\tfor (int j = 0; j < pkgList.length; j++) {\r\n\r\n\t\t\t\t\t\t\tif (pkgList[j].equals(context.getPackageName())) {\r\n\t\t\t\t\t\t\t\tcontinue;\r\n\t\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\t\tactivityManger.killBackgroundProcesses(pkgList[j]);\r\n\t\t\t\t\t\t}\r\n\t\t\t\t\t}\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t}\r\n\t}\r\n}" }, { "path": "app/src/main/java/com/cundong/memory/util/ViewUtils.java", "content": "package com.cundong.memory.util;\n\nimport android.view.View;\nimport android.view.ViewGroup;\n\npublic class ViewUtils {\n\n public static void unbindDrawables(View view) {\n if (view.getBackground() != null) {\n view.getBackground().setCallback(null);\n }\n\n if (view instanceof ViewGroup) {\n for (int i = 0; i < ((ViewGroup) view).getChildCount(); i++) {\n unbindDrawables(((ViewGroup) view).getChildAt(i));\n }\n ((ViewGroup) view).removeAllViews();\n }\n }\n}" }, { "path": "app/src/main/res/anim/slide_down.xml", "content": "\n\n\n \n" }, { "path": "app/src/main/res/anim/slide_up.xml", "content": "\n\n\n \n" }, { "path": "app/src/main/res/layout/activity_demo.xml", "content": "\n\n \n\n \n\n" }, { "path": "app/src/main/res/layout/activity_main.xml", "content": "\n\n\n \n\n \n\n \n\n \n" }, { "path": "app/src/main/res/layout/activity_outofmemory_list.xml", "content": "\n\n\n \n\n" }, { "path": "app/src/main/res/layout/activity_test.xml", "content": "\n\n\n \n\n" }, { "path": "app/src/main/res/layout/float_view.xml", "content": "\n\n\n \n\n \n\n \n\n \n \n\n" }, { "path": "app/src/main/res/menu/main.xml", "content": "

\n\n \n\n\n" }, { "path": "app/src/main/res/values/colors.xml", "content": "\n\n #3F51B5\n #303F9F\n #FF4081\n\n #00000000\n\n" }, { "path": "app/src/main/res/values/dimens.xml", "content": "\n\n \n 16dp\n 16dp\n\n 160dip\n\n" }, { "path": "app/src/main/res/values/strings.xml", "content": "\n\n\n MemoryMonitor\n Hello world!\n Settings\n \n 开始监控\n 停止监控\n 清理内存\n 内存使用:%1$s\n 可用:%1$sM\n Pss Total:\\r\\n\n\n 当前targets API level 23+, 必须手动设置“允许在其他应用上层显示”开启才行\n" }, { "path": "app/src/main/res/values/styles.xml", "content": "\n\n \n \n\n \n\n \n\n" }, { "path": "app/src/main/res/values-v11/styles.xml", "content": "\n\n \n \n\n\n" }, { "path": "app/src/main/res/values-v14/styles.xml", "content": "\n\n \n \n\n\n" }, { "path": "app/src/main/res/values-w820dp/dimens.xml", "content": "\n\n \n 64dp\n\n\n" }, { "path": "build.gradle", "content": "// Top-level build file where you can add configuration options common to all sub-projects/modules.\n\nbuildscript {\n repositories {\n jcenter()\n }\n dependencies {\n classpath 'com.android.tools.build:gradle:1.5.0'\n\n // NOTE: Do not place your application dependencies here; they belong\n // in the individual module build.gradle files\n }\n}\n\nallprojects {\n repositories {\n jcenter()\n }\n}\n\ntask clean(type: Delete) {\n delete rootProject.buildDir\n}\n" }, { "path": "gradle/wrapper/gradle-wrapper.properties", "content": "#Wed Oct 21 11:34:03 PDT 2015\ndistributionBase=GRADLE_USER_HOME\ndistributionPath=wrapper/dists\nzipStoreBase=GRADLE_USER_HOME\nzipStorePath=wrapper/dists\ndistributionUrl=https\\://services.gradle.org/distributions/gradle-2.8-all.zip\n" }, { "path": "gradlew", "content": "#!/usr/bin/env bash\n\n##############################################################################\n##\n## Gradle start up script for UN*X\n##\n##############################################################################\n\n# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.\nDEFAULT_JVM_OPTS=\"\"\n\nAPP_NAME=\"Gradle\"\nAPP_BASE_NAME=`basename \"$0\"`\n\n# Use the maximum available, or set MAX_FD != -1 to use that value.\nMAX_FD=\"maximum\"\n\nwarn ( ) {\n echo \"$*\"\n}\n\ndie ( ) {\n echo\n echo \"$*\"\n echo\n exit 1\n}\n\n# OS specific support (must be 'true' or 'false').\ncygwin=false\nmsys=false\ndarwin=false\ncase \"`uname`\" in\n CYGWIN* )\n cygwin=true\n ;;\n Darwin* )\n darwin=true\n ;;\n MINGW* )\n msys=true\n ;;\nesac\n\n# For Cygwin, ensure paths are in UNIX format before anything is touched.\nif $cygwin ; then\n [ -n \"$JAVA_HOME\" ] && JAVA_HOME=`cygpath --unix \"$JAVA_HOME\"`\nfi\n\n# Attempt to set APP_HOME\n# Resolve links: $0 may be a link\nPRG=\"$0\"\n# Need this for relative symlinks.\nwhile [ -h \"$PRG\" ] ; do\n ls=`ls -ld \"$PRG\"`\n link=`expr \"$ls\" : '.*-> \\(.*\\)$'`\n if expr \"$link\" : '/.*' > /dev/null; then\n PRG=\"$link\"\n else\n PRG=`dirname \"$PRG\"`\"/$link\"\n fi\ndone\nSAVED=\"`pwd`\"\ncd \"`dirname \\\"$PRG\\\"`/\" >&-\nAPP_HOME=\"`pwd -P`\"\ncd \"$SAVED\" >&-\n\nCLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar\n\n# Determine the Java command to use to start the JVM.\nif [ -n \"$JAVA_HOME\" ] ; then\n if [ -x \"$JAVA_HOME/jre/sh/java\" ] ; then\n # IBM's JDK on AIX uses strange locations for the executables\n JAVACMD=\"$JAVA_HOME/jre/sh/java\"\n else\n JAVACMD=\"$JAVA_HOME/bin/java\"\n fi\n if [ ! -x \"$JAVACMD\" ] ; then\n die \"ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME\n\nPlease set the JAVA_HOME variable in your environment to match the\nlocation of your Java installation.\"\n fi\nelse\n JAVACMD=\"java\"\n which java >/dev/null 2>&1 || die \"ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.\n\nPlease set the JAVA_HOME variable in your environment to match the\nlocation of your Java installation.\"\nfi\n\n# Increase the maximum file descriptors if we can.\nif [ \"$cygwin\" = \"false\" -a \"$darwin\" = \"false\" ] ; then\n MAX_FD_LIMIT=`ulimit -H -n`\n if [ $? -eq 0 ] ; then\n if [ \"$MAX_FD\" = \"maximum\" -o \"$MAX_FD\" = \"max\" ] ; then\n MAX_FD=\"$MAX_FD_LIMIT\"\n fi\n ulimit -n $MAX_FD\n if [ $? -ne 0 ] ; then\n warn \"Could not set maximum file descriptor limit: $MAX_FD\"\n fi\n else\n warn \"Could not query maximum file descriptor limit: $MAX_FD_LIMIT\"\n fi\nfi\n\n# For Darwin, add options to specify how the application appears in the dock\nif $darwin; then\n GRADLE_OPTS=\"$GRADLE_OPTS \\\"-Xdock:name=$APP_NAME\\\" \\\"-Xdock:icon=$APP_HOME/media/gradle.icns\\\"\"\nfi\n\n# For Cygwin, switch paths to Windows format before running java\nif $cygwin ; then\n APP_HOME=`cygpath --path --mixed \"$APP_HOME\"`\n CLASSPATH=`cygpath --path --mixed \"$CLASSPATH\"`\n\n # We build the pattern for arguments to be converted via cygpath\n ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`\n SEP=\"\"\n for dir in $ROOTDIRSRAW ; do\n ROOTDIRS=\"$ROOTDIRS$SEP$dir\"\n SEP=\"|\"\n done\n OURCYGPATTERN=\"(^($ROOTDIRS))\"\n # Add a user-defined pattern to the cygpath arguments\n if [ \"$GRADLE_CYGPATTERN\" != \"\" ] ; then\n OURCYGPATTERN=\"$OURCYGPATTERN|($GRADLE_CYGPATTERN)\"\n fi\n # Now convert the arguments - kludge to limit ourselves to /bin/sh\n i=0\n for arg in \"$@\" ; do\n CHECK=`echo \"$arg\"|egrep -c \"$OURCYGPATTERN\" -`\n CHECK2=`echo \"$arg\"|egrep -c \"^-\"` ### Determine if an option\n\n if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition\n eval `echo args$i`=`cygpath --path --ignore --mixed \"$arg\"`\n else\n eval `echo args$i`=\"\\\"$arg\\\"\"\n fi\n i=$((i+1))\n done\n case $i in\n (0) set -- ;;\n (1) set -- \"$args0\" ;;\n (2) set -- \"$args0\" \"$args1\" ;;\n (3) set -- \"$args0\" \"$args1\" \"$args2\" ;;\n (4) set -- \"$args0\" \"$args1\" \"$args2\" \"$args3\" ;;\n (5) set -- \"$args0\" \"$args1\" \"$args2\" \"$args3\" \"$args4\" ;;\n (6) set -- \"$args0\" \"$args1\" \"$args2\" \"$args3\" \"$args4\" \"$args5\" ;;\n (7) set -- \"$args0\" \"$args1\" \"$args2\" \"$args3\" \"$args4\" \"$args5\" \"$args6\" ;;\n (8) set -- \"$args0\" \"$args1\" \"$args2\" \"$args3\" \"$args4\" \"$args5\" \"$args6\" \"$args7\" ;;\n (9) set -- \"$args0\" \"$args1\" \"$args2\" \"$args3\" \"$args4\" \"$args5\" \"$args6\" \"$args7\" \"$args8\" ;;\n esac\nfi\n\n# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules\nfunction splitJvmOpts() {\n JVM_OPTS=(\"$@\")\n}\neval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS\nJVM_OPTS[${#JVM_OPTS[*]}]=\"-Dorg.gradle.appname=$APP_BASE_NAME\"\n\nexec \"$JAVACMD\" \"${JVM_OPTS[@]}\" -classpath \"$CLASSPATH\" org.gradle.wrapper.GradleWrapperMain \"$@\"\n" }, { "path": "gradlew.bat", "content": "@if \"%DEBUG%\" == \"\" @echo off\r\n@rem ##########################################################################\r\n@rem\r\n@rem Gradle startup script for Windows\r\n@rem\r\n@rem ##########################################################################\r\n\r\n@rem Set local scope for the variables with windows NT shell\r\nif \"%OS%\"==\"Windows_NT\" setlocal\r\n\r\n@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.\r\nset DEFAULT_JVM_OPTS=\r\n\r\nset DIRNAME=%~dp0\r\nif \"%DIRNAME%\" == \"\" set DIRNAME=.\r\nset APP_BASE_NAME=%~n0\r\nset APP_HOME=%DIRNAME%\r\n\r\n@rem Find java.exe\r\nif defined JAVA_HOME goto findJavaFromJavaHome\r\n\r\nset JAVA_EXE=java.exe\r\n%JAVA_EXE% -version >NUL 2>&1\r\nif \"%ERRORLEVEL%\" == \"0\" goto init\r\n\r\necho.\r\necho ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.\r\necho.\r\necho Please set the JAVA_HOME variable in your environment to match the\r\necho location of your Java installation.\r\n\r\ngoto fail\r\n\r\n:findJavaFromJavaHome\r\nset JAVA_HOME=%JAVA_HOME:\"=%\r\nset JAVA_EXE=%JAVA_HOME%/bin/java.exe\r\n\r\nif exist \"%JAVA_EXE%\" goto init\r\n\r\necho.\r\necho ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%\r\necho.\r\necho Please set the JAVA_HOME variable in your environment to match the\r\necho location of your Java installation.\r\n\r\ngoto fail\r\n\r\n:init\r\n@rem Get command-line arguments, handling Windowz variants\r\n\r\nif not \"%OS%\" == \"Windows_NT\" goto win9xME_args\r\nif \"%@eval[2+2]\" == \"4\" goto 4NT_args\r\n\r\n:win9xME_args\r\n@rem Slurp the command line arguments.\r\nset CMD_LINE_ARGS=\r\nset _SKIP=2\r\n\r\n:win9xME_args_slurp\r\nif \"x%~1\" == \"x\" goto execute\r\n\r\nset CMD_LINE_ARGS=%*\r\ngoto execute\r\n\r\n:4NT_args\r\n@rem Get arguments from the 4NT Shell from JP Software\r\nset CMD_LINE_ARGS=%$\r\n\r\n:execute\r\n@rem Setup the command line\r\n\r\nset CLASSPATH=%APP_HOME%\\gradle\\wrapper\\gradle-wrapper.jar\r\n\r\n@rem Execute Gradle\r\n\"%JAVA_EXE%\" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% \"-Dorg.gradle.appname=%APP_BASE_NAME%\" -classpath \"%CLASSPATH%\" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%\r\n\r\n:end\r\n@rem End local scope for the variables with windows NT shell\r\nif \"%ERRORLEVEL%\"==\"0\" goto mainEnd\r\n\r\n:fail\r\nrem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of\r\nrem the _cmd.exe /c_ return code!\r\nif not \"\" == \"%GRADLE_EXIT_CONSOLE%\" exit 1\r\nexit /b 1\r\n\r\n:mainEnd\r\nif \"%OS%\"==\"Windows_NT\" endlocal\r\n\r\n:omega\r\n" }, { "path": "magnet/.gitignore", "content": "/build\n" }, { "path": "magnet/build.gradle", "content": "apply plugin: 'com.android.library'\n\nandroid {\n compileSdkVersion 23\n buildToolsVersion \"22.0.1\"\n \n lintOptions {\n abortOnError false\n }\n\n defaultConfig {\n minSdkVersion 3\n targetSdkVersion 22\n versionCode 1\n versionName \"1.0\"\n }\n}\n" }, { "path": "magnet/gradle.properties", "content": "POM_NAME=Magnet\nPOM_ARTIFACT_ID=library\nPOM_PACKAGING=aar" }, { "path": "magnet/proguard-rules.pro", "content": "# Add project specific ProGuard rules here.\n# By default, the flags in this file are appended to flags specified\n# in /Users/prem/Documents/sdk/tools/proguard/proguard-android.txt\n# You can edit the include path and order by changing the proguardFiles\n# directive in build.gradle.\n#\n# For more details, see\n# http://developer.android.com/guide/developing/tools/proguard.html\n\n# Add any project specific keep options here:\n\n# If your project uses WebView with JS, uncomment the following\n# and specify the fully qualified class name to the JavaScript interface\n# class:\n#-keepclassmembers class fqcn.of.javascript.interface.for.webview {\n# public *;\n#}\n" }, { "path": "magnet/src/androidTest/java/com/premnirmal/Magnet/ApplicationTest.java", "content": "package com.premnirmal.Magnet;\n\nimport android.app.Application;\nimport android.test.ApplicationTestCase;\n\n/**\n * Testing Fundamentals\n */\npublic class ApplicationTest extends ApplicationTestCase {\n public ApplicationTest() {\n super(Application.class);\n }\n}" }, { "path": "magnet/src/main/AndroidManifest.xml", "content": "\n\n\n \n\n\n" }, { "path": "magnet/src/main/java/com/premnirmal/Magnet/FlingListener.java", "content": "package com.premnirmal.Magnet;\n\nimport android.view.GestureDetector;\nimport android.view.MotionEvent;\n\n/**\n * Created by prem on 7/20/14.\n */\nclass FlingListener extends GestureDetector.SimpleOnGestureListener {\n\n private static final float FLING_THRESHOLD_VELOCITY = 50f;\n\n @Override\n public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {\n return (Math.abs(e2.getX() - e1.getX()) < FLING_THRESHOLD_VELOCITY && e2.getY() - e1.getY() > FLING_THRESHOLD_VELOCITY);\n }\n\n}" }, { "path": "magnet/src/main/java/com/premnirmal/Magnet/IconCallback.java", "content": "package com.premnirmal.Magnet;\n\nimport android.view.View;\n\n/**\n * Created by prem on 7/20/14.\n * Desc: Interface that gives the user callbacks for when the MagnetIcon has been interacted with.\n */\npublic interface IconCallback {\n\n /**\n * Insert code for what to do when the icon has been flung away\n */\n public void onFlingAway();\n\n /**\n * Callback for when the icon has been dragged by the user\n * @param x x coordiante on the screen in pixels\n * @param y y coordinate on the screen in pixels\n */\n public void onMove(float x, float y);\n\n /**\n * Callback for when the icon has been clicked. Perform any action such as launch your app,\n * or show a menu, etc.\n * @param icon the view holding the icon. Get context from this view.\n * @param iconXPose the x coordinate of the icon in pixels\n * @param iconYPose the y coordiante of the icon in pixels\n */\n public void onIconClick(View icon, float iconXPose, float iconYPose);\n\n\n /**\n * Callback for when the icon has been destroyed. Usually you should stop your service in this.\n */\n public void onIconDestroyed();\n}\n" }, { "path": "magnet/src/main/java/com/premnirmal/Magnet/Magnet.java", "content": "package com.premnirmal.Magnet;\n\nimport android.content.Context;\nimport android.graphics.PixelFormat;\nimport android.os.Handler;\nimport android.os.Looper;\nimport android.util.DisplayMetrics;\nimport android.view.GestureDetector;\nimport android.view.Gravity;\nimport android.view.LayoutInflater;\nimport android.view.MotionEvent;\nimport android.view.View;\nimport android.view.WindowManager;\nimport android.widget.RelativeLayout;\n\n/**\n * Created by prem on 7/20/14.\n * Desc: Class holding the Magnet Icon, and performing touchEvents on the view.\n */\npublic class Magnet implements View.OnTouchListener {\n\n protected static final int TOUCH_TIME_THRESHOLD = 200;\n\n protected View mIconView;\n protected RemoveView mRemoveView;\n protected WindowManager mWindowManager;\n protected WindowManager.LayoutParams mLayoutParams;\n protected Context mContext;\n protected GestureDetector mGestureDetector;\n protected boolean shouldStickToWall = true;\n protected boolean shouldFlingAway = true;\n protected IconCallback mListener;\n protected MoveAnimator mAnimator;\n\n protected long lastTouchDown;\n protected float lastXPose, lastYPose;\n protected boolean isBeingDragged = false;\n protected int mWidth, mHeight;\n\n protected int mInitialX = -1, mInitialY = -1;\n /**\n * Builder class to create your {@link Magnet}\n */\n public static class Builder {\n\n Magnet magnet;\n\n public Builder(Context context) {\n magnet = new Magnet(context);\n }\n\n /**\n * The Icon must have a view, provide a view or a layout using {@link #setIconView(int)}\n * @param iconView the view representing the icon\n * @return\n */\n public Builder setIconView(View iconView) {\n magnet.mIconView = iconView;\n magnet.mIconView.setOnTouchListener(magnet);\n return this;\n }\n\n /**\n * Use an xml layout to provide the button view\n * @param iconViewRes the layout id of the icon\n * @return\n */\n public Builder setIconView(int iconViewRes) {\n magnet.mIconView = LayoutInflater.from(magnet.mContext).inflate(iconViewRes, null);\n magnet.mIconView.setOnTouchListener(magnet);\n return this;\n }\n\n /**\n * whether your magnet sticks to the edge of your screen when you release it\n * @param shouldStick\n * @return\n */\n public Builder setShouldStickToWall(boolean shouldStick) {\n magnet.shouldStickToWall = shouldStick;\n return this;\n }\n\n /**\n * whether you can fling away your Magnet towards the bottom of the screen\n * @param shoudlFling\n * @return\n */\n public Builder setShouldFlingAway(boolean shoudlFling) {\n magnet.shouldFlingAway = shoudlFling;\n return this;\n }\n\n /**\n * Callback for when the icon moves, or when it isis flung away and destroyed\n * @param callback\n * @return\n */\n public Builder setIconCallback(IconCallback callback) {\n magnet.mListener = callback;\n return this;\n }\n\n /**\n *\n * @param shouldBeResponsive\n * @return\n */\n public Builder setRemoveIconShouldBeResponsive(boolean shouldBeResponsive) {\n magnet.mRemoveView.shouldBeResponsive = shouldBeResponsive;\n return this;\n }\n\n /**\n * you can set a custom remove icon or use the default one\n * @param removeIconResId\n * @return\n */\n public Builder setRemoveIconResId(int removeIconResId) {\n magnet.mRemoveView.setIconResId(removeIconResId);\n return this;\n }\n\n /**\n * you can set a custom remove icon shadow or use the default one\n * @param shadow\n * @return\n */\n public Builder setRemoveIconShadow(int shadow) {\n magnet.mRemoveView.setShadowBG(shadow);\n return this;\n }\n\n /**\n * Set the initial coordinates of the magnet\n * @param x\n * @param y\n * @return\n */\n public Builder setInitialPosition(int x, int y) {\n magnet.mInitialX = x;\n magnet.mInitialY = y;\n return this;\n }\n\n public Magnet build() {\n if(magnet.mIconView == null) {\n throw new NullPointerException(\"Magnet view is null! Must set a view for the magnet!\");\n }\n return magnet;\n }\n }\n\n\n protected Magnet(Context context) {\n mContext = context;\n mGestureDetector = new GestureDetector(context, new FlingListener());\n mWindowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);\n mAnimator = new MoveAnimator();\n mRemoveView = new RemoveView(context);\n }\n\n /**\n * Show the Magnet i.e. add it to the Window\n */\n public void show() {\n addToWindow(mIconView);\n updateSize();\n if(mInitialX != -1 || mInitialY != -1) {\n setPosition(mInitialX, mInitialY, true);\n } else {\n goToWall();\n }\n }\n\n protected void addToWindow(View icon) {\n WindowManager.LayoutParams params = new WindowManager.LayoutParams(\n WindowManager.LayoutParams.WRAP_CONTENT,\n WindowManager.LayoutParams.WRAP_CONTENT,\n WindowManager.LayoutParams.TYPE_SYSTEM_ALERT,\n WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE |\n WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN,\n PixelFormat.TRANSLUCENT\n );\n\n try {\n mWindowManager.addView(icon, mLayoutParams = params);\n } catch(Exception e) {\n // ignore\n // if targetSdkVersion >=23 addView maybe crash here.\n // http://developer.android.com/intl/zh-cn/reference/android/Manifest.permission.html\n }\n }\n\n protected void updateSize() {\n final DisplayMetrics metrics = new DisplayMetrics();\n mWindowManager.getDefaultDisplay().getMetrics(metrics);\n mWidth = (metrics.widthPixels - mIconView.getWidth()) / 2;\n mHeight = (metrics.heightPixels - mIconView.getHeight()) / 2;\n }\n\n @Override\n public boolean onTouch(View view, MotionEvent event) {\n boolean eaten = false;\n if (shouldFlingAway) {\n eaten = mGestureDetector.onTouchEvent(event);\n }\n if (eaten) {\n flingAway();\n } else {\n float x = event.getRawX();\n float y = event.getRawY();\n int action = event.getAction();\n if (action == MotionEvent.ACTION_DOWN) {\n showRemoveView();\n lastTouchDown = System.currentTimeMillis();\n mAnimator.stop();\n updateSize();\n isBeingDragged = true;\n } else if (action == MotionEvent.ACTION_UP) {\n if (System.currentTimeMillis() - lastTouchDown < TOUCH_TIME_THRESHOLD) {\n if (mListener != null) {\n mListener.onIconClick(mIconView, x, y);\n }\n }\n hideRemoveView();\n isBeingDragged = false;\n eaten = false;\n goToWall();\n } else if (action == MotionEvent.ACTION_MOVE) {\n if (isBeingDragged) {\n move(x - lastXPose, y - lastYPose);\n }\n }\n\n lastXPose = x;\n lastYPose = y;\n }\n return eaten;\n }\n\n protected void flingAway() {\n if (shouldFlingAway) {\n int y = mContext.getResources().getDisplayMetrics().heightPixels / 2;\n int x = 0;\n mAnimator.start(x, y);\n if (mListener != null) {\n mListener.onFlingAway();\n }\n destroy();\n }\n }\n\n protected void showRemoveView() {\n if (mRemoveView != null && shouldFlingAway) {\n mRemoveView.show();\n }\n }\n\n protected void hideRemoveView() {\n if (mRemoveView != null && shouldFlingAway) {\n mRemoveView.hide();\n }\n }\n\n protected void goToWall() {\n if (shouldStickToWall) {\n float nearestXWall = mLayoutParams.x >= 0 ? mWidth : -mWidth;\n float nearestYWall = mLayoutParams.y > 0 ? mHeight : -mHeight;\n if (Math.abs(mLayoutParams.x - nearestXWall) < Math.abs(mLayoutParams.y - nearestYWall)) {\n mAnimator.start(nearestXWall, mLayoutParams.y);\n } else {\n mAnimator.start(mLayoutParams.x, nearestYWall);\n }\n }\n }\n\n protected void move(float deltaX, float deltaY) {\n mLayoutParams.x += deltaX;\n mLayoutParams.y += deltaY;\n if (mRemoveView != null && shouldFlingAway) {\n mRemoveView.onMove(mLayoutParams.x, mLayoutParams.y);\n }\n mWindowManager.updateViewLayout(mIconView, mLayoutParams);\n if (mListener != null) {\n mListener.onMove(mLayoutParams.x, mLayoutParams.y);\n }\n if (shouldFlingAway && !isBeingDragged && Math.abs(mLayoutParams.x) < 50\n && Math.abs(mLayoutParams.y - (mContext.getResources().getDisplayMetrics().heightPixels / 2)) < 250) {\n flingAway();\n }\n }\n\n /**\n * Destroys the magnet - removes the view from the WindowManager and calls\n * {@link IconCallback#onIconDestroyed()}\n */\n public void destroy() {\n mWindowManager.removeView(mIconView);\n if (mRemoveView != null) {\n mRemoveView.destroy();\n }\n if (mListener != null) {\n mListener.onIconDestroyed();\n }\n mContext = null;\n }\n\n /**\n * Set the position of the Magnet.\n * Note: must be called **after** {@link #show()} is called.\n * This will call {@link IconCallback#onMove(float, float)} on your listener\n * @param x the x position\n * @param y the y position\n * @param animate whether the Magnet should animate to that position. If false the Magnet\n * will simply just set its coordinates to the given position\n */\n public void setPosition(int x, int y, boolean animate) {\n if(animate) {\n mAnimator.start(x, y);\n } else {\n mLayoutParams.x = x;\n mLayoutParams.y = y;\n mWindowManager.updateViewLayout(mIconView, mLayoutParams);\n if (mListener != null) {\n mListener.onMove(mLayoutParams.x, mLayoutParams.y);\n }\n }\n }\n\n protected class MoveAnimator implements Runnable {\n\n protected Handler handler = new Handler(Looper.getMainLooper());\n protected float destinationX;\n protected float destinationY;\n protected long startingTime;\n\n protected void start(float x, float y) {\n this.destinationX = x;\n this.destinationY = y;\n startingTime = System.currentTimeMillis();\n handler.post(this);\n }\n\n @Override\n public void run() {\n if (mIconView != null && mIconView.getParent() != null) {\n float progress = Math.min(1, (System.currentTimeMillis() - startingTime) / 400f);\n float deltaX = (destinationX - mLayoutParams.x) * progress;\n float deltaY = (destinationY - mLayoutParams.y) * progress;\n move(deltaX, deltaY);\n if (progress < 1) {\n handler.post(this);\n }\n }\n }\n\n protected void stop() {\n handler.removeCallbacks(this);\n }\n\n }\n}\n" }, { "path": "magnet/src/main/java/com/premnirmal/Magnet/RemoveView.java", "content": "package com.premnirmal.Magnet;\n\nimport android.content.Context;\nimport android.graphics.PixelFormat;\nimport android.util.Log;\nimport android.view.Gravity;\nimport android.view.LayoutInflater;\nimport android.view.View;\nimport android.view.WindowManager;\nimport android.view.animation.Animation;\nimport android.widget.ImageView;\nimport android.widget.RelativeLayout;\n\n/**\n * Created by prem on 7/20/14.\n * ViewHolder for the remove Icon.\n */\nclass RemoveView {\n\n View mLayout;\n View mButton;\n View mShadow;\n ImageView mButtonImage;\n private WindowManager mWindowManager;\n private SimpleAnimator mShowAnim;\n private SimpleAnimator mHideAnim;\n\n private SimpleAnimator mShadowFadeOut;\n private SimpleAnimator mShadowFadeIn;\n\n private final int buttonBottomPadding;\n\n boolean shouldBeResponsive = true;\n\n RemoveView(Context context) {\n mLayout = LayoutInflater.from(context).inflate(R.layout.x_button_holder, null);\n mButton = mLayout.findViewById(R.id.xButton);\n mButtonImage = (ImageView) mLayout.findViewById(R.id.xButtonImg);\n mButtonImage.setImageResource(R.drawable.trash);\n buttonBottomPadding = mButton.getPaddingBottom();\n mShadow = mLayout.findViewById(R.id.shadow);\n mWindowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);\n addToWindow(mLayout);\n mShowAnim = new SimpleAnimator(mButton, R.anim.slide_up);\n mHideAnim = new SimpleAnimator(mButton, R.anim.slide_down);\n mShadowFadeIn = new SimpleAnimator(mShadow, android.R.anim.fade_in);\n mShadowFadeOut = new SimpleAnimator(mShadow, android.R.anim.fade_out);\n hide();\n }\n\n void setIconResId(int id) {\n mButtonImage.setImageResource(id);\n }\n\n void setShadowBG(int shadowBG) {\n mShadow.setBackgroundResource(shadowBG);\n }\n\n void show() {\n if (mLayout != null && mLayout.getParent() == null) {\n addToWindow(mLayout);\n }\n mShadowFadeIn.startAnimation();\n mShowAnim.startAnimation();\n }\n\n void hide() {\n mShadowFadeOut.startAnimation();\n mHideAnim.startAnimation(new Animation.AnimationListener() {\n @Override\n public void onAnimationStart(Animation animation) {\n\n }\n\n @Override\n public void onAnimationEnd(Animation animation) {\n if (mLayout != null && mLayout.getParent() != null) {\n mWindowManager.removeView(mLayout);\n }\n }\n\n @Override\n public void onAnimationRepeat(Animation animation) {\n\n }\n });\n }\n\n void onMove(final float x, final float y) {\n if (shouldBeResponsive) {\n final int xTransformed = (int) Math.abs(x * 100 / (mButton.getContext().getResources().getDisplayMetrics().widthPixels / 2));\n final int bottomPadding = buttonBottomPadding - (xTransformed / 5);\n if (x < 0) {\n mButton.setPadding(0, 0, xTransformed, bottomPadding);\n } else {\n mButton.setPadding(xTransformed, 0, 0, bottomPadding);\n }\n }\n }\n\n void destroy() {\n if (mLayout != null && mLayout.getParent() != null) {\n mWindowManager.removeView(mLayout);\n }\n mLayout = null;\n mWindowManager = null;\n }\n\n private void addToWindow(View layout) {\n// WindowManager.LayoutParams params = new WindowManager.LayoutParams(\n// WindowManager.LayoutParams.MATCH_PARENT,\n// WindowManager.LayoutParams.MATCH_PARENT,\n// WindowManager.LayoutParams.TYPE_SYSTEM_ALERT,\n// WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE | WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN,\n// PixelFormat.TRANSLUCENT\n// );\n\n WindowManager.LayoutParams mParams = new WindowManager.LayoutParams();\n mParams.type = WindowManager.LayoutParams.TYPE_SYSTEM_ALERT;\n mParams.width = RelativeLayout.LayoutParams.MATCH_PARENT;\n mParams.height = RelativeLayout.LayoutParams.MATCH_PARENT;\n mParams.gravity = Gravity.CENTER;\n\n mParams.format = PixelFormat.TRANSLUCENT;\n mParams.flags = WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN\n | WindowManager.LayoutParams.FLAG_DIM_BEHIND\n | WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM;\n mParams.dimAmount = 0.4f;\n\n try {\n mWindowManager.addView(layout, mParams);\n } catch (Exception e) {\n e.printStackTrace();\n }\n }\n}\n" }, { "path": "magnet/src/main/java/com/premnirmal/Magnet/SimpleAnimator.java", "content": "package com.premnirmal.Magnet;\n\nimport android.view.View;\nimport android.view.animation.Animation;\nimport android.view.animation.AnimationUtils;\n\nimport java.lang.ref.WeakReference;\n\n/**\n * Created by prem on 7/20/14.\n * A class that takes care of animating a view in a simple way.\n */\nclass SimpleAnimator {\n\n private WeakReference mViewRef;\n private int animation;\n\n public SimpleAnimator(View view, int anim) {\n this.animation = anim;\n this.mViewRef = new WeakReference(view);\n }\n\n public void startAnimation() {\n startAnimation(null);\n }\n\n public void startAnimation(Animation.AnimationListener listener) {\n mViewRef.get().clearAnimation();\n Animation anim = AnimationUtils.loadAnimation(mViewRef.get().getContext(), animation);\n if(listener != null) {\n anim.setAnimationListener(listener);\n }\n anim.setFillAfter(true);\n mViewRef.get().startAnimation(anim);\n }\n\n}\n" }, { "path": "magnet/src/main/res/anim/slide_down.xml", "content": "\n\n\n \n" }, { "path": "magnet/src/main/res/anim/slide_up.xml", "content": "\n\n\n \n" }, { "path": "magnet/src/main/res/drawable/bottom_shadow.xml", "content": "\n\n \n \n \n \n \n \n" }, { "path": "magnet/src/main/res/layout/x_button_holder.xml", "content": "\n\n\n\n\n \n\n\n \n\n \n \n" }, { "path": "magnet/src/main/res/menu/paranormal.xml", "content": "\n \n\n" }, { "path": "magnet/src/main/res/values/dimens.xml", "content": "\n 55dp\n\n" }, { "path": "magnet/src/main/res/values/strings.xml", "content": "\n\n\n Magnet\n Hello world!\n Settings\n\n\n" }, { "path": "magnet/src/main/res/values/styles.xml", "content": "\n\n \n \n\n\n" }, { "path": "settings.gradle", "content": "include ':app', ':magnet'\n" } ]