如何生成 Firebase 注册令牌

问题描述

我正在尝试使用新方法生成 Firebase 注册令牌，但无法生成这是我的以下代码:

I am trying to generate firebase registration token with new method but unable to generate this is my code below:

MyFirebaseInstanceIdService.java

public class MyFirebaseInstanceIdService extends FirebaseMessagingService {

@Override
public void onNewToken(String s) {
    super.onNewToken(s);

    FirebaseInstanceId.getInstance().getInstanceId().addOnSuccessListener(new OnSuccessListener<InstanceIdResult>() {
        @Override
        public void onSuccess(InstanceIdResult instanceIdResult) {

            String token = instanceIdResult.getToken();
            Log.d("Token",token);
        }
    });
  }
}

Manifest.xml

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:dist="http://schemas.android.com/apk/distribution"
package="com.app.retrofitapp">

<dist:module dist:instant="true" />

<uses-permission android:name="android.permission.INTERNET" />

<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:roundIcon="@mipmap/ic_launcher_round"
    android:supportsRtl="true"
    android:theme="@style/AppTheme">

    <activity android:name=".Users"></activity>

    <activity android:name=".MainActivity">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

    <service android:name=".MyFirebaseInstanceIdService">
    <intent-filter>
        <action android:name="com.google.firebase.MESSAGING_EVENT"></action>
    </intent-filter>
    </service>

</application>

使用上述方法在 log cat 中没有显示任何令牌.请有人告诉我我做错了什么.任何帮助将不胜感激.

There is no token is showing in log cat with above method.Someone please let me know what I am doing wrong.Any help would be appreciated.

谢谢

推荐答案

如果您只想要 fcm 令牌(不关心通知)，您只需要清单中的以下服务和操作 INSTANCE_ID_EVENT...

If you want just fcm token(not bother about notification) you only need below service in manifest with action INSTANCE_ID_EVENT...

<service android:name=".fcm.FireBaseInstanceIdService">
    <intent-filter>
        <action android:name="com.google.firebase.INSTANCE_ID_EVENT"/>
    </intent-filter>
</service>

然后在您的活动中添加以下代码(onCreate 会很好)

And after this add the below code in your activity (onCreate will be good)

FirebaseInstanceId.getInstance().getInstanceId()
                .addOnCompleteListener(new OnCompleteListener<InstanceIdResult>() {
                    @Override
                    public void onComplete(@NonNull Task<InstanceIdResult> task) {
                        if (!task.isSuccessful()) {
                            Log.w(TAG, "Failed", task.getException());
                            return;
                        }

                        String token = task.getResult().getToken();
                        Log.i("FCM", "Current token=" + token);
                    }
                });

您将在那里获得您当前的令牌.希望它会有所帮助.

You will get your current token there. Hope it will help.

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