卡在 firebase_token.java

Question

firebase_token.java 出现错误

错误：找不到符号变量 super

错误：找不到符号类 FirebaseInstanceIdService

错误：方法没有覆盖或实现超类型中的方法

import android.content.SharedPreferences;

import com.google.firebase.iid.FirebaseInstanceId;
import com.google.firebase.iid.FirebaseInstanceIdService;


/**
 * Created by AQEEL on 5/22/2018.
 */

public class Firebase_Token extends FirebaseInstanceIdService {
    SharedPreferences sharedPreferences;
    @Override
    public void onTokenRefresh() {
        super.onTokenRefresh();
        String refreshedToken = FirebaseInstanceId.getInstance().getToken();
        sharedPreferences= getSharedPreferences("userdata",MODE_PRIVATE);
        sharedPreferences.edit().putString("tokenid",refreshedToken).commit();
    }

}

Answer 1

只要去掉 supper 注释，就可以正常工作了

public class Firebase_Token extends FirebaseInstanceIdService {
    SharedPreferences sharedPreferences;
    @Override
    public void onTokenRefresh() {
        String refreshedToken = FirebaseInstanceId.getInstance().getToken();
        sharedPreferences= getSharedPreferences("userdata",MODE_PRIVATE);
        sharedPreferences.edit().putString("tokenid",refreshedToken).commit();
    }

}