讀取Android設備的內存數據- USS，PSS，RSS

1. final ActivityManager am = (ActivityManager) getSystemService(ACTIVITY_SERVICE);
2. Android.os.Debug.MemoryInfo[] memoryInfoArray = am.getProcessMemoryInfo(new int[]{android.os.Process.myPid()});

其中MemoryInfo類提供了API接口幫助我們獲取內存數據

USS： getTotalPrivateDirty()

RSS： getTotalSharedDirty()

PSS： getTotalPss()