我已经实现了FirebaseMessagingService的服务。今天,我注意到手机被阻止时有异常行为。我很幸运地收到消息,Android通过通知向我显示,但是onMessageReceived中的代码不起作用。
@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
final Context context = this;
if(remoteMessage == null){
return;
}
if(remoteMessage.getNotification() != null){
try {
final Message msg = createMessage(remoteMessage.getNotification());
Handler handler= new Handler(Looper.getMainLooper());
handler.post(new Runnable() {
@Override
public void run() {
if(!isAppIsInBackgrund(context)){
Intent intent = new Intent("APP_MESSAGE_BROADCAST");
intent.putExtra("SENDER", msg.getCorrespondent().getId().toString());
intent.putExtra("MESSAGE_ID", msg.getId());
LocalBroadcastManager.getInstance(context).sendBroadcast(intent);
}
else {
showNotification(msg.getCorrespondent().getName(), msg.getBody());
}
}
});
} catch (Exception e) {
showNotification(remoteMessage.getNotification().getTitle(), remoteMessage.getNotification().getBody());
}
}
}
// isAppIsInBackgrund-我在哪里检查打开应用程序的方法。
public boolean isAppIsInBackgrund(Context context){
boolean isInBackground = true;
ActivityManager activityManager = (ActivityManager)context.getSystemService(Context.ACTIVITY_SERVICE);
if(Build.VERSION.SDK_INT > Build.VERSION_CODES.KITKAT_WATCH){
List<ActivityManager.RunningAppProcessInfo> runningProcesses = activityManager.getRunningAppProcesses();
for (ActivityManager.RunningAppProcessInfo processInfo:runningProcesses){
if(processInfo.importance == ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND){
for (String activeProcess:processInfo.pkgList){
if(activeProcess.equals(context.getPackageName())){
isInBackground = false;
}
}
}
}
}
else {
List<ActivityManager.RunningTaskInfo> taskInfo = activityManager.getRunningTasks(1);
ComponentName componentName = taskInfo.get(0).topActivity;
if(componentName.getPackageName().equals(context.getPackageName())){
isInBackground = false;
}
}
return isInBackground; }