我正在尝试使用BroadcastReceiver从IntentService向Activity发送消息。这是我在IntentService中的代码:
/**
* Received a message from the Google GCM service.
*/
@Override
protected void onMessage(Context context, Intent intent) {
Log.e(TAG, "Got a new message from GCM");
// create the intent
Intent broadcastIntent = new Intent(BROADCAST_NOTIFICATION);
intent.putExtra("name", "Josh");
intent.putExtra("broadcasting", true);
sendBroadcast(broadcastIntent);
}
在Activity类中,我注册了一个接收器来监听这些消息:
private class IncomingTransmissionReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
// if we are looking at a broadcast notification
if (intent.getAction().equals(GCMIntentService.BROADCAST_NOTIFICATION)) {
// are we broadcasting?
boolean broadcasting = intent.getBooleanExtra("broadcasting", false);
// get the name of the person who is broadcasting
String name = intent.getStringExtra("name");
Log.e(TAG, "Got a message, broadcasting= "+ broadcasting + " name= " + name);
}
}
}
当我发送广播时,这是日志打印的内容:
收到消息,broadcast = null name = null。
甚至intent.getExtras()。getString(" name")和intent.getExtras()。getBoolean(" broadcast")返回null(intent.getExtras()也返回null )。
我做错了什么?当我明显设置它们时,为什么我的意图为空?
答案 0 :(得分:4)
你必须这样做:
// create the intent
Intent broadcastIntent = new Intent(BROADCAST_NOTIFICATION);
broadcastIntent.putExtra("name", "Josh");
broadcastIntent.putExtra("broadcasting", true);
sendBroadcast(broadcastIntent);