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我正在開發一個Android項目，對於初學者，我一直在思考如何註冊。順便說一句，我使用Firebase進行此操作。這是我的代碼：保存數據時登錄失敗。（註冊）
package com....
import...
public class MainActivity extends AppCompatActivity {
//VIEW AND WIDGETS
Button createUser, moveToLoginBtn;
EditText userEmailEdit, userPasswordEdit;
//FIREBASE AUTH FIELDS
FirebaseAuth nAuth;
FirebaseAuth.AuthStateListener nAuthlistener;
DatabaseReference mDatabaseRef, mUserCheckData;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//ASSIGN ID
createUser = (Button) findViewById(R.id.createUserBtn);
moveToLoginBtn = (Button) findViewById(R.id.moveToLogin);
userEmailEdit = (EditText) findViewById(R.id.emailEditTextCreate);
userPasswordEdit = (EditText) findViewById(R.id.passEditTextCreate);
//ASSIGN INSTANCE
mDatabaseRef = FirebaseDatabase.getInstance().getReference();
mUserCheckData = FirebaseDatabase.getInstance().getReference().child("Users");
nAuth = FirebaseAuth.getInstance();
nAuthlistener = new FirebaseAuth.AuthStateListener(){
@Override
public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
FirebaseUser user = firebaseAuth.getCurrentUser();
if (user != null) {
final String emailForVer = user.getEmail();
mUserCheckData.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
checkUserValidation(dataSnapshot, emailForVer);
}
@Override
public void onCancelled(DatabaseError databaseError) {
}
});
} else {
}
}
};
//ON CLICK LISTENER
createUser.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View view) {
final String userEmailString, userPassString;
userEmailString = userEmailEdit.getText().toString().trim();
userPassString = userPasswordEdit.getText().toString().trim();
if (!TextUtils.isEmpty(userEmailString) && !TextUtils.isEmpty(userPassString))
{
nAuth.createUserWithEmailAndPassword(userEmailString,userPassString).addOnCompleteListener(new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
if (task.isSuccessful())
{
DatabaseReference mChildDatabase = mDatabaseRef.child("Users").push();
String key_user = mChildDatabase.getKey();
mChildDatabase.child("isVerified").setValue("unverified");
mChildDatabase.child("userKey").setValue(key_user);
mChildDatabase.child("emailUser").setValue(userEmailString);
mChildDatabase.child("passWordUser").setValue(userPassString);
Toast.makeText(MainActivity.this, "User Account Created!", Toast.LENGTH_LONG).show();
startActivity(new Intent(MainActivity.this, Profile.class));
}
else
{
Toast.makeText(MainActivity.this, "User Account Creation Fail", Toast.LENGTH_LONG).show();
startActivity(new Intent(MainActivity.this, MainActivity.class));
}
}
});
}
}
});
//MOVE TO LOGIN
moveToLoginBtn.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View view){
startActivity(new Intent(MainActivity.this, LoginActivity.class));
}
});
}
private void checkUserValidation(DataSnapshot dataSnapshot, String emailForVer) {
Iterator iterator = dataSnapshot.getChildren().iterator();
while (iterator.hasNext())
{
DataSnapshot dataUser = (DataSnapshot) iterator.next();
if(String.valueOf(dataUser.child("emailUser").getValue()).equals(emailForVer) && dataUser.child("emailUser") != null)
{
if(String.valueOf(dataUser.child("isVerified").getValue()).equals("unverified") && dataUser.child("isVerified") != null)
{
Intent in = new Intent(MainActivity.this, Profile.class);
in.putExtra("USER_KEY" , String.valueOf(dataUser.child("userKey").getValue()));
startActivity(in);
//in.putExtra("NAME_KEY" , String.valueOf(dataUser.child("nameKey").getValue()));
}else
{
startActivity(new Intent(MainActivity.this, Welcome.class));
}
}
}
}
@Override
protected void onStart() {
super.onStart();
nAuth.addAuthStateListener(nAuthlistener);
}
@Override
protected void onStop() {
super.onStop();
nAuth.removeAuthStateListener(nAuthlistener);
}
}
我想我已經正確實施了我的方法。但祝酒：
用戶帳戶創建失敗
是我 checkUseValidation()方法錯了嗎？任何形式的幫助表示讚賞。
還請關注我：
public void onComplete
方法，我已經把它的權利，我認爲。我不知道爲什麼數據沒有保存到Firebase數據庫。或者爲什麼任務沒有成功：
if (task.isSuccessful())
非常感謝。
這應該是任務不成功的問題。嘗試調用'getException（）'或'getResult（類 exceptionType）'來記錄失敗結果，以便追蹤問題。你基本上吞下了你展示Toast的else塊中的異常（如果有的話）。 –
Jimmy