如何在 Android 中保存 FCM 令牌?

2022-01-18 00:00:00 firebase android firebase-cloud-messaging java

我正在关注 this 在 Firebase 中注册我的设备

I am following this to register my deivce in Firebase

这里我尝试显示并保存通知令牌

Here I am trying to display and save the notification token

    public class MyFirebaseInstanceIDService extends FirebaseInstanceIdService {

    private static final String TAG = "MyFirebaseIIDService";

    @Override
    public void onTokenRefresh() {
        String refreshedToken = FirebaseInstanceId.getInstance().getToken();
        Log.d(TAG, "Refreshed token: " + refreshedToken);
        storeToken(refreshedToken);
    }

    private void storeToken(String token) {
        //saving the token on shared preferences
        SharedPrefManager.getInstance(getApplicationContext()).saveDeviceToken(token);
    }
}

当我尝试注册时，总是说 Token Token not generated 表单MainActivity

When I try to register it Always Says Token Token not generated form MainActivity

所以这里我的应用程序连接到 Firebase.. 我知道 FirebaseInstanceIdService 已弃用我也尝试过这个

So Here My Application is connected to Firebase.. and I know that FirebaseInstanceIdService is Deprecated I also tried with this

public class MyFirebaseInstanceIDService extends FirebaseMessagingService {

    private static final String TAG = "MyFirebaseIIDService";

    @Override
    public void onNewToken(String refreshedToken) {
        refreshedToken = FirebaseInstanceId.getInstance().getInstanceId().getResult().getToken();
        Log.d(TAG, "Refreshed token: " + refreshedToken);
        storeToken(refreshedToken);
    }

    private void storeToken(String token) {
        //saving the token on shared preferences
        SharedPrefManager.getInstance(getApplicationContext()).saveDeviceToken(token);
    }
}

但仍然没有生成相同的令牌

But Still same token is not generated

推荐答案

只需在你的代码中添加这个..

Just add this in your code..

    public class MyActivity extends AppCompatActivity {


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_my);


        SharedPreferences prefs = getSharedPreferences("TOKEN_PREF", MODE_PRIVATE);
        String token = prefs.getString("token", "");

        Log.e("NEW_INACTIVITY_TOKEN", token);

        if (TextUtils.isEmpty(token)) {
            FirebaseInstanceId.getInstance().getInstanceId().addOnSuccessListener(MyActivity.this, new OnSuccessListener<InstanceIdResult>() {
                @Override
                public void onSuccess(InstanceIdResult instanceIdResult) {
                    String newToken = instanceIdResult.getToken();
                    Log.e("newToken", newToken);
                    SharedPreferences.Editor editor = getSharedPreferences("TOKEN_PREF", MODE_PRIVATE).edit();
                    if (token!=null){
                       editor.putString("token", newToken);
                       editor.apply();
                    }

                }
            });
        }

    }


}

Firebase 令牌在应用首次安装和运行时调用一次，因此忽略保存数据或在使用共享首选项保存数据后运行此活动/服务

Firebase Tokens are called once when the app is installed and runned for the first time so ignore the Saving the data or running this Activity/Service once the Data is Saved with Shared Prefs

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