我想在单击通知时打开特定的活动。但是,当应用程序在后台运行时,它不会打开。我什至没有传递额外内容(即数据)。我只想打开活动,并根据登录的用户执行一些任务。我什至尝试在通知单击上打开我的默认启动器活动,然后从那里将用户发送到通知活动。这是我的默认启动器活动的代码: PS:我正在从Firebase控制台发送消息,但是它只有标题和正文。
(这是我执行网络任务后调用的函数:)
if (list.size()!=0){
for (int i=0;i<list.size();i++){
Users u=list.get(i);
//Toast.makeText(LoginActivity.this, "Logging in...", Toast.LENGTH_SHORT).show();
final Intent intent;
Bundle b=new Bundle();
// This is the solution i found to check whether the extras has the package name or not! But it doesnt seem to work.
if (Splashscreen.this.getIntent().getExtras() != null){
if (Splashscreen.this.getIntent().hasExtra("pushnotification") || Splashscreen.this.getIntent().getExtras().containsKey("com.tracecost")){
System.out.println("From notification----------->");
intent=new Intent(Splashscreen.this,NotificationReceivedActivity.class);
b.putString("pushnotification","yes");
}
else{
intent=new Intent(Splashscreen.this, ProjectSelection.class);
}
}
else{
intent=new Intent(Splashscreen.this, ProjectSelection.class);
}
b.putSerializable("user",u);
b.putSerializable("projectlist",plist);
intent.putExtras(b);
//logginDialog.dismiss();
Handler handler=new Handler();
handler.postDelayed(new Runnable() {
@Override
public void run() {
startActivity(intent);
finish();
}
},3500);
}
}
}```
答案 0 :(得分:0)
这仅在应用程序处于前台时有效。当应用程序在后台运行时,它仅考虑有效负载中的通知数据,而忽略数据部分。这将导致无法控制应用程序,因为通知类型的消息将仅由系统处理。唯一的选择是使用您自己的外部服务器或从其他客户端发送。
答案 1 :(得分:0)
当应用程序位于“前景”或“背景”中时,您可以从Firebase通知中重定向至您发送的data
。
我将为您提供一个示例,该示例如何根据从通知中收到的密钥在活动之间进行重定向,firebase神奇地处理了其余部分。
附言::如果您想处理已经在后台打开的活动,请使用
taskAffinity
进行播放。
通过FirebaseMessagingService
处理Firebase数据:
@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
super.onMessageReceived(remoteMessage);
System.out.println("MESSAGE BODY :" + remoteMessage.toString());
if (remoteMessage.getData().size() > 0) {
//getting the title and the body
String redirect;
String title = remoteMessage.getData().get("message_title");
String body = remoteMessage.getData().get("message_body");
redirect = remoteMessage.getData().get("redirect");
String event_id = remoteMessage.getData().get("event_id");
System.out.println("PUSH MESSAGE = " + remoteMessage.toString());
JSONObject jsonData = new JSONObject(remoteMessage.getData());
System.out.println("RESPONSE :" + jsonData.toString());
if (redirect != null) {
sendNotification(title, body, event_id, redirect);
} else {
redirect = "";
sendNotification(title, body, event_id, redirect);
}
}
}
private void sendNotification(String title, String body, String event_id, String redirect) {
Intent backIntent = new Intent();
PendingIntent pendingIntent;
if (redirect.contentEquals("CHAT")) {
backIntent = new Intent(MyFirebaseMessagingService.this, ChatScreen.class);
backIntent.putExtra("item_id", event_id);
}
if (redirect.contentEquals("EVENT") || redirect.contentEquals("INVITATION")) {
backIntent = new Intent(MyFirebaseMessagingService.this, Event_Summary.class);
backIntent.putExtra("event_id", event_id);
}
backIntent.putExtra("MODE", "FIRE_NOTIFICATION");
backIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
stackBuilder.addNextIntentWithParentStack(backIntent);
pendingIntent = stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT);
}
答案 2 :(得分:0)
Firebase控制台仅发送通知消息(此处是更多信息,Firebase),但是您可以使用自己的服务器或Firebase API发送数据消息。>
数据消息适用于前台和后台应用程序状态。
用于触发推送通知的示例卷曲看起来像:
卷曲-X POST \ https://fcm.googleapis.com/fcm/send \ -H'授权:密钥= YOUR_API_KEY'\ -H'内容类型:application / json'\ -H'cache-control:no-cache'\ -d'{ “数据”:{ “ title”:“ TITLE”, “ message”:“通知内容”, “ custom_key”:“ custom_value” }, “ registration_ids”:[“ DEVICE_PUSH_TOKEN”] }'
您也可以传递自定义键值对,并将其通过onMessageReceived方法获取。
注意:在这种方法中,您必须创建在系统托盘中可见的通知。示例代码如下:
// Create an explicit intent for an Activity in your app
Intent intent = new Intent(this, AlertDetails.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, 0);
NotificationCompat.Builder builder = new NotificationCompat.Builder(this, CHANNEL_ID)
.setSmallIcon(R.drawable.notification_icon)
.setContentTitle("My notification")
.setContentText("Hello World!")
.setPriority(NotificationCompat.PRIORITY_DEFAULT)
// Set the intent that will fire when the user taps the notification
.setContentIntent(pendingIntent)
.setAutoCancel(true);
中找到更多信息
希望这会有所帮助!