如何使用待处理的Intent Android发送Order广播接收器

Question

Hi i have function like when user hit on notification i have to check my application is in foreground if it so, just close the notification. Otherwise need to open up the application.

I have use concept of ordered broadcast to achieve but i am stuck to call ordered broadcast receiver from pending intent.

Answer 1

To send an ordered broadcast using a PendingIntent , use one of the send() methods, for example this one , that takes a PendingIntent.OnFinished argument. This capability is not explicitly documented and only the description of the parametersto PendingIntent.OnFinished gives some hint that ordered broadcasts are supported.

Here is example for sending an ordered broadcast:

Intent i = new Intent("com.my.package.TEST_ACTION");

PendingIntent.OnFinished listener = new PendingIntent.OnFinished() {
    @Override
    public void onSendFinished(PendingIntent pendingIntent, Intent intent,
                               int resultCode, String resultData, Bundle resultExtras) {
        Log.i("TEST", String.format("onSendFinished(): result=%d action=%s",
                            resultCode, intent.getAction()));
    }
};

PendingIntent pi = PendingIntent.getBroadcast(this, 0, i, 0);

int initResult = -1;

try {
    pi.send(initResult, listener, null);
} catch (PendingIntent.CanceledException e) {
    e.printStackTrace();
}

I confirmed that this produces an ordered broadcast by defining a number of receivers with this general form, registered in the manifest with different priorities:

public class ReceiverA extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        Log.i("AAAA", String.format("result=%d ordered=%b", getResultCode(), isOrderedBroadcast()));
        setResultCode(1111);
    }
}

The logcat output confirmed that the receivers were invoked in the expected order, that isOrderedBroadcast() is true for each, and the result code set by setResultCode() is passed to the next receiver, and finally to the PendingIntent.OnFinished callback.