如何将文件共享首选项值保存到firebase并检索它

Posted 2021-04-14

我正在做一个简单的游戏应用程序其中两个简单游戏的总分存储在文件共享首选项中

如何将分数与firebase同步并检索总分活动中的分数

请帮忙

答案

Create a model class with User with properties name and email . create setters and getters and store the model object to firebase as below.

DatabaseReference mDatabase = FirebaseDatabase.getInstance().getReference("users");

String userId = mDatabase.push().getKey();
User user = new User("username", "email");

// pushing user to 'users' node using the userId
mDatabase.child(userId).setValue(user);

Retreive the data in other class using the below code
*******************************************************

mDatabase.child(userId).addValueEventListener(new ValueEventListener() {
    @Override
    public void onDataChange(DataSnapshot dataSnapshot) {

        User user = dataSnapshot.getValue(User.class);

        Log.d(TAG, "User name: " + user.getName() + ", email " + user.getEmail());
    }

    @Override
    public void onCancelled(DatabaseError error) {
        // Failed to read value
        Log.w(TAG, "Failed to read value.", error.toException());
    }
});