我有一个在我的手机(Android 7.0)上运行的前台服务,但没有在一个朋友手机(Android 8.0)上运行。我也在android studio模拟器上对其进行了测试,而在8.0版上我也遇到了同样的问题。我已经实现了 if-else检查,以查看它是否为Android 8.0,因此我可以调用 startForegroundService(),但仍然没有任何帮助。
这就是我的称呼:
//Start foreground service
Intent intent = new Intent(this, MyForeGroundService.class);
intent.setAction(MyForeGroundService.ACTION_START_FOREGROUND_SERVICE);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
startForegroundService(intent);
}else{
startService(intent);
}
这是我的前台服务:
public class MyForeGroundService extends Service implements LocationListener {
public MyForeGroundService() {
}
@Override
public IBinder onBind(Intent intent) {
// TODO: Return the communication channel to the service.
throw new UnsupportedOperationException("Not yet implemented");
}
@Override
public void onCreate() {
super.onCreate();
wakeLock();
}
@SuppressLint("InvalidWakeLockTag")
public void wakeLock() {
pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
assert pm != null;
wl = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "partialwl");
wl.acquire();
}
public void stopWakeLock() {
wl.release();
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
if (intent != null) {
String action = intent.getAction();
switch (action) {
case ACTION_START_FOREGROUND_SERVICE:
wakeLock();
startForegroundService();
break;
case ACTION_STOP_FOREGROUND_SERVICE:
stopWakeLock();
stopForegroundService();
break;
case ACTION_PLAY:
Intent openMap= new Intent(this,Map.class);
startActivity(openMap);
break;
case ACTION_PAUSE:
break;
}
}
return START_STICKY;
}
/* Used to build and start foreground service. */
private void startForegroundService() {
Log.d(TAG_FOREGROUND_SERVICE, "Start foreground service.");
// Create notification default intent.
Intent intent = new Intent(this,Map.class);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, 0);
// Create notification builder.
NotificationCompat.Builder builder = new NotificationCompat.Builder(this);
//Go back to Map activity if user press at the notification
builder.setContentIntent(pendingIntent)
.setContentTitle("gEKOning...")
.setContentText("Tap to open gEKOn app");
builder.setWhen(System.currentTimeMillis());
builder.setSmallIcon(R.mipmap.ic_launcher);
Bitmap largeIconBitmap = BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher);
builder.setLargeIcon(largeIconBitmap);
// Make the notification max priority.
builder.setPriority(Notification.PRIORITY_MAX);
// Make head-up notification.
builder.setFullScreenIntent(pendingIntent, true);
// Build the notification.
Notification notification = builder.build();
// Start foreground service.
startForeground(1, notification);
}
private void stopForegroundService() {
Log.d(TAG_FOREGROUND_SERVICE, "Stop foreground service.");
// Stop foreground service and remove the notification.
stopForeground(true);
// Stop the foreground service.
stopSelf();
}
答案 0 :(得分:2)
您需要定义一个通知渠道。这样的事情会做。
request_url