这篇文章主要介绍了Android实现检测实体按键事件并屏蔽 ，文中示例代码介绍的非常详细，具有一定的参考价值，感兴趣的小伙伴们可以参考一下
本文实例为大家分享了Android实现检测实体按键事件并屏蔽的具体代码，供大家参考，具体内容如下
效果图：
新建服务类MyKeyEventService.java。用于监听电源键的触发。
public class MyKeyEventService extends Service { @Nullable @Override public IBinder onBind(Intent intent) { return null; } @Override public int onStartCommand(Intent intent, int flags, int startId) { final IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_ON); filter.addAction(Intent.ACTION_SCREEN_OFF); filter.addAction(Intent.ACTION_USER_PRESENT); final BroadcastReceiver mReceiver = new MainActivity.ScreenReceiver(); registerReceiver(mReceiver, filter); return super.onStartCommand(intent, flags, startId); } public class LocalBinder extends Binder { MyKeyEventService getService() { return MyKeyEventService.this; } } }注册服务类，AndroidManifest.xml文件。
主界面MainActivity.java。
public class MainActivity extends AppCompatActivity { private static final String TAG = "MyKeyEvent"; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); startService(new Intent(this, LockService.class)); } @Override protected void onDestroy() { super.onDestroy(); stopService(new Intent(MainActivity.this, LockService.class)); } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { switch (keyCode) { case KeyEvent.KEYCODE_VOLUME_UP: Log.i(TAG, "onKeyDown: vol+ down"); return true; // break; case KeyEvent.KEYCODE_VOLUME_DOWN: Log.i(TAG, "onKeyDown: vol- down"); return true; // break; case KeyEvent.KEYCODE_POWER: Log.i(TAG, "onKeyDown: power down"); return true; // break; default: break; } return super.onKeyDown(keyCode, event); } @Override public boolean onKeyUp(int keyCode, KeyEvent event) { switch (keyCode) { case KeyEvent.KEYCODE_VOLUME_UP: Log.i(TAG, "onKeyDown: vol+ up"); return true; // break; case KeyEvent.KEYCODE_VOLUME_DOWN: Log.i(TAG, "onKeyDown: vol- up"); return true; // break; case KeyEvent.KEYCODE_POWER: Log.i(TAG, "onKeyDown: power up"); return true; // break; default: break; } return super.onKeyUp(keyCode, event); } static class ScreenReceiver extends BroadcastReceiver { @Override public void onReceive(final Context context, final Intent intent) { // Log.e(TAG, "onReceive " + intent.getAction()); if (intent.getAction().equals(Intent.ACTION_SCREEN_OFF)) { // do whatever you need to do here Log.e(TAG, "Screen Off"); } else if (intent.getAction().equals(Intent.ACTION_SCREEN_ON)) { // and do whatever you need to do here Log.e(TAG, "Screen On"); } } } }如果不想屏蔽系统按键事件，则把**return true;**加上注释。
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