https://stackoverflow.com/questions/30979005/block-disable-recent-apps-button

1.加权限

<uses-permission android:name="android.permission.REORDER_TASKS" />

2.在 onPause中变相实现

ActivityManager activityManager = (ActivityManager) getApplicationContext().getSystemService(Context.ACTIVITY_SERVICE);activityManager.moveTaskToFront(getTaskId(), 0);