Android 服务错误:android.app.ForegroundServiceDidNotStartInTimeException

问题描述 投票:0回答:1

我想在 Android 中创建一个服务来启动一个长时间的活动,但它崩溃并显示以下消息:

android.app.ForegroundServiceDidNotStartInTimeException:Context.startForegroundService()然后没有调用Service.startForeground():ServiceRecord {2134ac4 u0 com.example.foregroundservice / .MyForegroundService} 在 android.app.ActivityThread.throwRemoteServiceException(ActivityThread.java:1923) 在 android.app.ActivityThread.access 2700 美元(ActivityThread.java:247) 在 android.app.ActivityThread$H.handleMessage(ActivityThread.java:2148) 在 android.os.Handler.dispatchMessage(Handler.java:106) 在 android.os.Looper.loopOnce(Looper.java:201) 在 android.os.Looper.loop(Looper.java:288) 在 android.app.ActivityThread.main(ActivityThread.java:7839) 在 java.lang.reflect.Method.invoke(本机方法) 在 com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548) 在 com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1003)

这是我的主要活动:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    
    if (!foregroundServiceRunning())
    {
        Intent serviceIntent = new Intent(this, MyForegroundService.class);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            startForegroundService(serviceIntent);
        }
    }

}

public void getTimeButtonPressed(View v)
{
    TextView textView = (TextView) findViewById(R.id.textView);
    textView.setText(MyForegroundService.getsystemtime());
}

public boolean foregroundServiceRunning()
{
    ActivityManager activityManager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
    for (ActivityManager.RunningServiceInfo service: activityManager.getRunningServices(Integer.MAX_VALUE))
    {
        if(MyForegroundService.class.getName().equals(service.service.getClassName()))
        {
            return true;
        }
    }
    return false;
}

而且是前台服务

@Override
public int onStartCommand(Intent intent, int flags, int startId)
{
    new Thread(
            new Runnable()
            {
                @Override
                public void run()
                {
                    while (true)
                    {
                        Log.e("Service", "Service is running...");
                        try
                        {
                            Thread.sleep(2000);
                        }
                        catch (InterruptedException e)
                        {
                            e.printStackTrace();
                        }

                    }
                }
            }

    ).start();

    final String CHANNELID ="Foreground Service ID";
    NotificationChannel channel = null;
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
    {
        channel = new NotificationChannel(CHANNELID, CHANNELID, NotificationManager.IMPORTANCE_LOW);
    }
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
    {
        getSystemService(NotificationManager.class).createNotificationChannel(channel);
    }
    if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
        Notification.Builder notification = new Notification.Builder(this, CHANNELID)
                .setContentText("Service is running...")
                .setContentTitle("Service enabled")
                .setSmallIcon(R.drawable.ic_launcher_background);
    }

    return super.onStartCommand(intent, flags, startId);
}

@Nullable
@Override
public IBinder onBind(Intent intent) {
    return null;
}

public static String getsystemtime()
{
    SimpleDateFormat simpleDateFormat = new SimpleDateFormat("ss:mm:hh dd/MM/yyyy", Locale.US);
    return simpleDateFormat.format(new Date());
}

我该怎么做才能解决这个问题?

android foreground
1个回答
0
投票

在您的

Service.onStartCommand()
中,您创建了一个
Notification
,但您从未使用过它。您需要致电
startForeground()
并传递您的
Notification
。如果
Activity
调用
startForegroundService()
,则 Android 预计
Service
将在
startForeground()
内调用
onStartCommand()

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