Firebase控制台：如何为通知指定click_action [英] Firebase console: How to specify click_action for notifications

问题描述

我实施了Firebase并测试了Firebase通知。
当应用处于前台时，我没有问题，我实现了一个扩展 FirebaseMessagingService 的服务，并处理 onMessageReceived

中的消息和数据>

当应用程序处于后台时，我遇到了问题，我想发送一个通知，打开一个特定的活动，并执行我计划要做的事情，而不仅仅是打开应用程序。 p>

我按照Firebase指南中的描述进行了操作，但无法启动具体的活动。

清单：

 < activity android：name =。BasicNotificationActivity> 
< intent-filter> 
   
 
 Firebase FCM通知click_action有效载荷
 

但是，这个问题的作者所接受的答案只是说，这是不可能与Firebase控制台，但它是 - 一个简单的解决方法。 diidu 对同一问题的回答解释了我将使用的解决方法。

更新：

详细解释他的回答：

添加一个辅助类（或者实现 startActivity（）方法）：

  public class ClickActionHelper {
 public static void startActivity（String className，Bundle extras，Context context）{
 Class cls; 
尝试{
 cls = Class.forName（className）; 
} catch（ClassNotFoundException e）{
 //表示您在Firebase控制台中输入了错误的输入
} 
 Intent i = new Intent（context，cls）; 
 i.putExtras（extras）; 
 context.startActivity（i）; 
 
 
 
 
 
 
 
在应用程序的启动器活动中，调用（）方法检查 onCreate（）和 onNewIntent（）（ onNewIntent（） 只会被调用，而不是 onCreate（），如果Activity是以单顶标志启动的话）： 
 
 
  @Override 
保护无效的onCreate（捆绑包）{
 [...] 
 checkIntent（getIntent（））; 
 
 
 @Override 
保护无效的onNewIntent（意图意图）{
 super.onNewIntent（intent）; 
 [...] 
 checkIntent（intent）; 
 
 $ b $ public void checkIntent（Intent intent）{
 if（intent.hasExtra（click_action））{
 ClickActionHelper.startActivity（intent.getStringExtra（ click_action），intent.getExtras（），this）; 
 
 
 
 
 $  onMessageReceived（） ：
 
 $ b $ pre $ < data = remoteMessage.getData（）; 
 if（data.containsKey（click_action））{
 ClickActionHelper.startActivity（data.get（click_action），null，this）; 
 
 
 
 
 $ b要使用Firebase控制台发送通知，值为
 $ b 
 键：click_action 
值：<您的完全限定的类名活性GT; 
  
现在，当收到通知并点击通知后，就会打开您的活动。如果您的应用程序处于前台，它也会立即转换为活动 - 向用户询问他是否想要参加此活动可能会很好（通过在 onMessageReceived（）中显示对话框） ）。
 
I implemented Firebase and testing the Firebase notifications.
When the app is in the foreground I don't have problems, I implemented a service that extends FirebaseMessagingService and handle the message and data in onMessageReceived

I have problems when the app is in background, I would like to send a notification that opens a specific activity and does what I schedule to do, not just opening the App.

I did as described on the Firebase guide, but I'm not able to start the specific activity.

Here the manifest:
<activity android:name=".BasicNotificationActivity">
            <intent-filter>
                <action android:name="OPEN_ACTIVITY_1" />
                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>
And here the Firebase Console. What do I have to write in those fields to open my "BasicNotificationActivity"?

解决方案
This is a duplicate of this question: Firebase FCM notifications click_action payload

But the answer that was accepted by the author of this question just states that it is not possible with Firebase Console, but it is - with an easy workaround. This answer by diidu to the same question explains the workaround I would use.

UPDATE:

To elaborate on his answer: 

Add a helper class (or implement startActivity() method somehow):  
public class ClickActionHelper {
    public static void startActivity(String className, Bundle extras, Context context){
        Class cls;
        try {
            cls = Class.forName(className);
        }catch(ClassNotFoundException e){
            //means you made a wrong input in firebase console
        }
        Intent i = new Intent(context, cls);
        i.putExtras(extras);
        context.startActivity(i);
    }
}
In the launcher-activity of your app, call a mehtod to check any new intents in onCreate() and onNewIntent() (onNewIntent() is only called instead of onCreate() if Activity is launched with single-top flag):
@Override
protected void onCreate(Bundle bundle) {
    [...]
    checkIntent(getIntent());
 }

@Override
protected void onNewIntent(Intent intent) {
    super.onNewIntent(intent);
    [...]
    checkIntent(intent);
}

public void checkIntent(Intent intent) {
       if (intent.hasExtra("click_action")) {
        ClickActionHelper.startActivity(intent.getStringExtra("click_action"), intent.getExtras(), this);
       }
}
And in onMessageReceived():
 public void onMessageReceived(RemoteMessage remoteMessage) {
     Map<String, String> data = remoteMessage.getData();        
     if (data.containsKey("click_action")) {
         ClickActionHelper.startActivity(data.get("click_action"), null, this);
     }
 }
To send a notification with firebase console, put a key-value-pair as custom data like this:
Key: click_action
Value: <fully qualified classname of your activity>
Now when a notification is received and clicked on, it will open your activity. If your app is in foreground, it will also immediately change to the activity - it would probably be good to ask the user if he wants to go to this activity or not (by showing a dialog in onMessageReceived()).

                        
这篇关于Firebase控制台：如何为通知指定click_action的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！