Android实现仿360桌面悬浮清理内存

ActivityManager mActivityManager = MyManager.getActivityManager(mContext);
    List<ActivityManager.RunningAppProcessInfo> process = mActivityManager.getRunningAppProcesses();

    for(int i=0;i<process.size();i++){
     ActivityManager.RunningAppProcessInfo ar = process.get(i);
     String packageName = ar.processName;
     packageName = packageName.split(":")[0];
     //重要级别大于200，并且不被信任的后台将被杀掉
     if(ar.importance>100 && !MyManager.isTrust(packageName)){
      MyManager.getActivityManager(mContext).killBackgroundProcesses(packageName);
     }
    }

 WindowManager windowManager = getWindowManager(context); 
   int screenWidth = windowManager.getDefaultDisplay().getWidth();
   int screenHeight = windowManager.getDefaultDisplay().getHeight();
 
   if(mSmallFloatWin==null){
    mSmallFloatWin = new SmallFloatWin(context);
    if (smallWindowParams == null) { 
     smallWindowParams = new LayoutParams(); 
     smallWindowParams.type = LayoutParams.TYPE_PHONE; 
     smallWindowParams.format = PixelFormat.RGBA_8888; 
     smallWindowParams.flags = LayoutParams.FLAG_NOT_TOUCH_MODAL 
       | LayoutParams.FLAG_NOT_FOCUSABLE; 
     smallWindowParams.gravity = Gravity.LEFT | Gravity.TOP; 
     smallWindowParams.width = SmallFloatWin.viewWidth; 
     smallWindowParams.height = SmallFloatWin.viewHeight; 
     smallWindowParams.x = screenWidth; 
     smallWindowParams.y = screenHeight / 2; 
    } 
    mSmallFloatWin.setParams(smallWindowParams);
    windowManager.addView(mSmallFloatWin, smallWindowParams); 
   }