从JobIntentService调用活动方法

Question

I would like to call a non-static method in the for-loop inside the onHandleWork. How can I achieve that?

@Override
protected void onHandleWork(@NonNull Intent intent) {
    Log.d(TAG, "onHandleWork");

    String input = intent.getStringExtra("inputExtra");


    for (int i = 0; i < 10; i++) {
        Log.d(TAG, input + " - " + i);

        new MainActivity.method();

        if (isStopped()) return;

        SystemClock.sleep(1000);
    }
}

Answer 1

You should broadcast a message that the activity is listening instead.

To achieve that, use a broadcastreceiver on the activity and send It from the job service with context.sendBroadcast(intent)

You can make your activity listening by declaring a broadcastreceiver programatically or in the AndroidManifest.xml file. Note that If you declare it programatically, the activity Will only receive the broadcast If It is opened. If you use the manifest approach, when you activity is not opened and you send a broadcast, the sustém os going to start your activity

Receiving Broadcasts: https://developer.android.com/guide/components/broadcasts.html#manifest-declared-receivers

Sending Broadcasts: https://developer.android.com/guide/components/broadcasts.html#sending-broadcasts

Docs: https://developer.android.com/reference/android/content/BroadcastReceiver