屏蔽recent按键:

@Overrideprotected void onPause() {    super.onPause();    ActivityManager activityManager = (ActivityManager) getApplicationContext()            .getSystemService(Context.ACTIVITY_SERVICE);    activityManager.moveTaskToFront(getTaskId(), 0);}

开机自启动：

/** * Created by Zzm_Pc on 2017/3/28. */public class BootBroadcastReceiver extends BroadcastReceiver {    @Override    public void onReceive(Context context, Intent intent) {        Log.i("selftoactive", intent.getAction());        if (Intent.ACTION_BOOT_COMPLETED.equals(intent.getAction())) {            Log.i("selftoactive", intent.getAction());            Toast.makeText(context, "开机自启动！！！", Toast.LENGTH_SHORT).show();            Intent intent1 = new Intent(context, FirstActivity.class);            intent1.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);//这个是重点，没有设置这个，app不会启                                                              动，而且开机后有延迟几秒才会收到，开                                                              机发送过来的信号            context.startActivity(intent1);        }    }}

Home按键，Recent按键的监听可以用广播：Recent按键类似

/** * Created by Zzm_Pc on 2017/3/28. */public class HomeKeyBroadcastReceiver extends BroadcastReceiver {    @Override    public void onReceive(Context context, Intent intent) {        String action = intent.getAction();        Log.i("homekey1", action);        if (Intent.ACTION_CLOSE_SYSTEM_DIALOGS.equals(action)) {            Log.i("homekey1", action);            String reason = intent.getStringExtra("reason");            Log.i("homekey1", reason);            if ("homekey".equals(reason)) {                //按下home键时的情况下                //do nothing just 拦截事件                Log.i("homekey1", "do nothing else xixi~~");            }        }    }}