在我的应用程序中,我有几个继承自一个 BaseActivity 的 Activity 。
我的应用程序通过 GCMBaseIntentService
接收推送通知
我需要实现下一个逻辑:
当应用程序打开时收到推送时显示对话框,如果关闭则显示通知。
我的代码:
public class GCMIntentService extends GCMBaseIntentService {
----------------------- other code ----------------------------------------
@Override
protected void onMessage(Context context, Intent intent) {
Log.d(TAG, "onMessage : " + String.valueOf(intent));
// This is how to get values from the push message (data)
String payload = intent.getExtras().getString("payload");
String message = "";
String messageID;
if (payload.contains("{")) {
try {
JSONObject jsonArray = new JSONObject(payload);
message = jsonArray.get("Msg").toString();
messageID = jsonArray.get("MessageID").toString();
GA_Handler.sendEvent("Popup_Push", String.format("Push message %s", messageID));
} catch (Exception ex) {
// Do nothing
}
} else {
message = payload;
}
// special intent with action we make up
Intent pushReceivedIntent = new Intent(ACTION_PUSH);
// place old extras in new intent
pushReceivedIntent.putExtras(intent.getExtras());
// find out if there any BroadcastReceivers waiting for this intent
if (context.getPackageManager().queryBroadcastReceivers(pushReceivedIntent, 0).size() > 0) {
// We got at least 1 Receiver, send the intent
context.sendBroadcast(pushReceivedIntent);
} else {
// There are no receivers, show PushNotification as Notification
// long timestamp = intent.getLongExtra("timestamp", -1);
NotificationManager notificationManager = (NotificationManager) context
.getSystemService(Context.NOTIFICATION_SERVICE);
Notification note = new Notification(R.drawable.ic_launcher, "MYAPP", System.currentTimeMillis());
Intent notificationIntent = new Intent(context, SplashActivity.class);
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, notificationIntent, 0);
note.setLatestEventInfo(context, "MYAPP", message, pendingIntent);
note.number = count++;
note.defaults |= Notification.DEFAULT_SOUND;
note.defaults |= Notification.DEFAULT_VIBRATE;
note.defaults |= Notification.DEFAULT_LIGHTS;
note.flags |= Notification.FLAG_AUTO_CANCEL;
notificationManager.notify(0, note);
}
}
----------------------- other code ---------------------------------------- }
在我的 BaseActivity 中:
@Override
protected void onResume() {
super.onResume();
//register as BroadcastReceiver for Push Action
IntentFilter filter = new IntentFilter();
filter.addAction(GCMIntentService.ACTION_PUSH);
mReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
DialogFragmentUtils.getNotification("Notification", "Notification");
}
};
registerReceiver(mReceiver, filter);
}
@Override
protected void onPause() {
super.onPause();
FragmentManager fm = getSupportFragmentManager();
for (int i = 0; i < fm.getBackStackEntryCount(); ++i) {
fm.popBackStack();
}
//unregister broadcast receiver
unregisterReceiver(mReceiver);
}
我总是收到通知。
当我调试 context.getPackageManager().queryBroadcastReceivers(pushReceivedIntent, 0).size()
时总是等于 0。
谁能告诉我我做错了什么?
最佳答案
似乎 PackageManager.queryBroadcastReceivers() 会返回应用程序 list 中声明的与给定 Intent 匹配的所有接收器。
但是请注意,这不包括使用 Context.registerReceiver() 注册的接收器;目前无法获取有关这些的信息。
您可以在 onReceive() 中使用以下代码来确定应用程序/Activity 是否正在运行
ActivityManager am = (ActivityManager) getSystemService(ACTIVITY_SERVICE);
List<RunningTaskInfo> taskInfo = am.getRunningTasks(1);
Log.d("current task :", "CURRENT Activity ::" + taskInfo.get(0).topActivity.getClass().getSimpleName());
ComponentName componentInfo = taskInfo.get(0).topActivity;
if(componentInfo.getPackageName().equalsIgnoreCase("your.package.name")){
//Activity in foreground, broadcast intent
}
else{
//Activity Not Running
//Generate Notification
}
关于android - 当应用程序以不同方式打开/关闭时显示推送通知,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/16394666/