模型類:火力地堡無法檢索數據
@IgnoreExtraProperties
public class Points {
public String score;
public Points(){
}
public Points(String score) {
this.score = score;
}
public String getScore() {
return score;
}
public void setScore(String score) {
this.score = score;
}
}
代碼更新:
private void updateUser(String name) {
FirebaseUser user = firebaseAuth.getCurrentUser();
if (!name.equals("")) {
dbRefer.child("User").child(user.getUid()).child("score").setValue(name);
Toast.makeText(this, "update Done", Toast.LENGTH_SHORT).show();
}
}
代碼檢索:
private void addUserChangeListener() {
final FirebaseUser getData = firebaseAuth.getCurrentUser();
// User data change listener
dbRefer.child("User").child(getData.getUid()).child("score").addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
Points user = dataSnapshot.getValue(Points.class);
Toast.makeText(GameActivity.this, "Retrieved Data is: " + getData, Toast.LENGTH_SHORT).show();
// Check for null
if (user == null) {
Log.e(TAG, "User data is null!");
return;
}
Log.e(TAG, "User data is changed!" + user.getScore());
// Display newly updated name and email
mTvShowData.setText(user.getScore());
// clear edit text
mTxtEdtData.setText("");
toggleButton();
}
@Override
public void onCancelled(DatabaseError databaseError) {
Toast.makeText(GameActivity.this, "Can't Get data", Toast.LENGTH_SHORT).show();
}
});
}
代碼更新工作,我是什麼現在面臨的是檢索部分,我似乎無法從我的數據庫中獲取數據。需要幫助和指導,謝謝。
您是否檢查了Firebase控制檯中的權限,即數據庫規則? –
你可以發佈你的points.class文件以及你的數據庫結構嗎? – Robert
感謝您的回覆,我添加了我的積分類 – Arduino