Firebase（FCM）如何获取令牌 [英] Firebase (FCM) how to get token

问题描述

我是第一个使用FCM的人。 我从

代码：

RegistrationIntentService.java

  public class RegistrationIntentService extends Inten tService {
 
 private static final String TAG =RegIntentService; 
 
 
 public RegistrationIntentService（）{
 super（TAG）; 
 
 $ b @Override 
保护无效的onHandleIntent（意图意图）{
字符串标记= FirebaseInstanceId.getInstance（）。getToken（）; 
 Log.i（TAG，FCM Registration Token：+ token）; 
 
 
 
 
 $ b MyFirebaseInstanceIDService.java 
 
 
  public class MyFirebaseInstanceIDService extends FirebaseInstanceIdService {
 
 private static final String TAG =MyFirebaseIIDService; 
 
 / ** 
 *如果InstanceID令牌更新，则调用。如果
 *之前的标记的安全性已经被破坏，则可能发生这种情况。请注意，当最初生成InstanceID令牌
 *时会调用它，所以这就是您要检索令牌的地方。 
 * / 
 // [START refresh_token] 
 @Override $ b $ public void onTokenRefresh（）{
 //获取更新的InstanceID标记。 
 // String refreshedToken = FirebaseInstanceId.getInstance（）。getToken（）; 
 // Log.d（TAG，Refreshed token：+ refreshedToken）; 
 // 
 // // TODO：实现此方法将任何注册发送到您的应用程序的服务器。 
 // sendRegistrationToServer（refreshedToken）; 
 // 
 Intent intent = new Intent（this，RegistrationIntentService.class）; 
 startService（intent）; 
} 
 // [END refresh_token] 
 
 / ** 
 *将令牌保留给第三方服务器。 
 *< p> 
 *修改此方法以将用户的FCM InstanceID令牌与您的应用程序维护的任何服务器端帐户
 *相关联。 
 * 
 * @param令牌新的令牌。 
 * / 
 private void sendRegistrationToServer（String token）{
 //根据需要添加自定义实现。 
 
 
 
 
 $ b $在MainActivity.java中添加这个。
  Intent intent = new Intent（this，RegistrationIntentService.class）; 
 startService（intent）; 
  
完成上述操作后，您可以在logcat中获得Token。但最后我发现一个方便的仅使用调试模式安装示例应用程序，您可以在第一次安装示例应用程序时获取令牌。
 
 
 
但是我不知道为什么它可以在安装时打印日志。可能与移动系统有关。
 
 
然后为什么我不能得到通知。  FirebaseMessagingService.onMessageReceived 没有调用 sendNotification   
 
解决方案
 / p> 
 
 
  Log.d（Firebase，token+ FirebaseInstanceId.getInstance（）。getToken（））; 
  
 
It`s my first to use FCM.


I download a sample from firebase/quickstart-android and I install the FCM Quickstart.But I can`t get any token from the log even hit the LOG TOKEN button in the app.

Then I try to send message with Firebase console and set to target to my app package name.I got any incoming message.

I want to know can FCM be used?GCM everything is ok.

Solution:

Because I am not a Android developer,just a backend developer.So it takes me some time to solve it.In my opinion,there`re some bug in the sample app.



Code：

RegistrationIntentService.java
public class RegistrationIntentService extends IntentService {

    private static final String TAG = "RegIntentService";


    public RegistrationIntentService() {
        super(TAG);
    }

    @Override
    protected void onHandleIntent(Intent intent) {
        String token = FirebaseInstanceId.getInstance().getToken();
        Log.i(TAG, "FCM Registration Token: " + token);
    }
}
MyFirebaseInstanceIDService.java
public class MyFirebaseInstanceIDService extends FirebaseInstanceIdService {

    private static final String TAG = "MyFirebaseIIDService";

    /**
     * Called if InstanceID token is updated. This may occur if the security of
     * the previous token had been compromised. Note that this is called when the InstanceID token
     * is initially generated so this is where you would retrieve the token.
     */
    // [START refresh_token]
    @Override
    public void onTokenRefresh() {
        // Get updated InstanceID token.
//        String refreshedToken = FirebaseInstanceId.getInstance().getToken();
//        Log.d(TAG, "Refreshed token: " + refreshedToken);
//
//        // TODO: Implement this method to send any registration to your app's servers.
//        sendRegistrationToServer(refreshedToken);
//
        Intent intent = new Intent(this, RegistrationIntentService.class);
        startService(intent);
    }
    // [END refresh_token]

    /**
     * Persist token to third-party servers.
     * <p>
     * Modify this method to associate the user's FCM InstanceID token with any server-side account
     * maintained by your application.
     *
     * @param token The new token.
     */
    private void sendRegistrationToServer(String token) {
        // Add custom implementation, as needed.
    }
}
Add this in the MainActivity.java.
 Intent intent = new Intent(this, RegistrationIntentService.class);
        startService(intent);
After do above，you can get the Token in logcat.But finally I find a convenient way to get it.Just use debug mode to install the sample app and you can get the token when you first time to install it.

But I dont why it cant print the log when I install it.Maybe be related to mobile system.

And then why I can`t get the Notification. FirebaseMessagingService.onMessageReceived did not call sendNotification
解决方案
Work for me
Log.d("Firebase", "token "+ FirebaseInstanceId.getInstance().getToken());


                        
这篇关于Firebase（FCM）如何获取令牌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！