在这里我试图确定屏幕是否打开但是当按下电源锁定/解锁按钮时它似乎不起作用.应用程序没有错误,但if-else中的代码似乎没有效果.
编辑
现在代码工作(感谢Olgun)但媒体播放器播放并没有停止,每次打开/关闭屏幕都会创建新的媒体播放器对象(多次播放).
编辑
现在代码工作(感谢Olgun)但媒体播放器播放并没有停止,每次打开/关闭屏幕都会创建新的媒体播放器对象(多次播放).
SCBroadcaster.java
public class SCBroadcaster extends BroadcastReceiver {
PowerManager pm;
MediaPlayer mp;
public static boolean wasScreenOn = true;
@Override
public void onReceive(Context arg0,Intent arg1) {
// TODO Auto-generated method stub
mp = MediaPlayer.create(arg0,R.raw.gale);
if (arg1.getAction().equals(Intent.ACTION_SCREEN_ON)) {
mp.stop();
mp.release();
Toast.makeText(arg0,"oNONONO",Toast.LENGTH_LONG).show();
} else if (arg1.getAction().equals(Intent.ACTION_SCREEN_OFF)) {
mp.start();
}
}
}
MainActivity.java
public class MainActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_OFF);
filter.addAction(Intent.ACTION_SCREEN_ON);
BroadcastReceiver bre = new SCBroadcaster();
registerReceiver(bre,filter);
}
protected void onPause() {
super.onPause();
if (SCBroadcaster.wasScreenOn) {
System.out.println("SCREEN TURNED OFF");
} else {
}
}
protected void onResume() {
super.onResume();
if (!SCBroadcaster.wasScreenOn) {
} else {
}
}
}
