解锁屏幕时启动服务

Question

如何在解锁屏幕时启动服务？也许就像AlarmAanger!

context.startService(new Intent(context, Widget.class));

Answer 1

对于检测屏幕开启和屏幕关闭注册,广播收发器如:

AndroidManifest.xml中:

 <receiver android:name="receiverScreen">
        <intent-filter> 
            <action android:name="android.intent.action.SCREEN_ON" />
            <action android:name="android.intent.action.SCREEN_OFF" />
<action android:name="android.Intent.ACTION_USER_PRESENT" />
        </intent-filter> 
    </receiver>

在活动或服务中:

 try {
              IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_ON);

              filter.addAction(Intent.ACTION_SCREEN_OFF);
filter.addAction(Intent.ACTION_USER_PRESENT);

              BroadcastReceiver mReceiver = new receiverScreen();

              registerReceiver(mReceiver, filter);
         } catch (Exception e) {

         }

接收器代码,系统通知您是否发生屏幕开/关:

public class receiverScreen extends BroadcastReceiver {

     @Override
     public void onReceive(Context context, Intent intent) {

         if (intent.getAction().equals(Intent.ACTION_SCREEN_ON)){

         }
        if (intent.getAction().equals(Intent.ACTION_SCREEN_OFF)){

         }
if (intent.getAction().equals(Intent.ACTION_USER_PRESENT)){

         }
     }

    }