如何在Android上启动NotificationListenerService

时间:2017-02-25 03:08:55

标签: android notifications android-service android-service-binding notification-listener

我想使用NotificationListenerService访问Android手机上的通知。我检查了很多教程,但我找不到他们称之为服务的地方。

我应该在MainActivity上使用bindService还是startService?意图应该如何?有人能告诉我这个的语法吗?

查看我正在研究的其中一项服务:

public class NLService extends NotificationListenerService {

Context context;

@Override
public void onCreate() {

    super.onCreate();
    context = getApplicationContext();


}


@Override
public void onNotificationPosted(StatusBarNotification sbn) {
    String pack = sbn.getPackageName();
    String ticker ="";
    if(sbn.getNotification().tickerText !=null) {
        ticker = sbn.getNotification().tickerText.toString();
    }
    Bundle extras = sbn.getNotification().extras;
    String title = extras.getString("android.title");
    String text = extras.getCharSequence("android.text").toString();
    int id1 = extras.getInt(Notification.EXTRA_SMALL_ICON);
    Bitmap id = sbn.getNotification().largeIcon;


    Log.i("Package",pack);
    Log.i("Ticker",ticker);
    Log.i("Title",title);
    Log.i("Text",text);

    Intent msgrcv = new Intent("Msg");
    msgrcv.putExtra("package", pack);
    msgrcv.putExtra("ticker", ticker);
    msgrcv.putExtra("title", title);
    msgrcv.putExtra("text", text);
    if(id != null) {
        ByteArrayOutputStream stream = new ByteArrayOutputStream();
        //id.compress(Bitmap.CompressFormat.PNG, 100, stream);
        byte[] byteArray = stream.toByteArray();
        msgrcv.putExtra("icon",byteArray);
    }
    LocalBroadcastManager.getInstance(context).sendBroadcast(msgrcv);

}
@Override

public void onNotificationRemoved(StatusBarNotification sbn) {
    Log.i("Msg","Notification Removed");

}

}

1 个答案:

答案 0 :(得分:3)

要收听传入通知,他们无需明确启动它。首先使用以下权限在清单中定义您的服务 -

  

android.permission.BIND_NOTIFICATION_LISTENER_SERVICE

 <service android:name=".MyNotificationListener"
      android:permission="android.permission.BIND_NOTIFICATION_LISTENER_SERVICE">
     <intent-filter>
         <action android:name="android.service.notification.NotificationListenerService" />
     </intent-filter>
 </service>

另一件需要注意的事情是,您必须使用以下意图授予权限 -

Intent intent=new Intent("android.settings.ACTION_NOTIFICATION_LISTENER_SETTINGS");

或手动授予通知权限。