Android Firebase 连接

Question

我试图使用电子邮件和密码连接到 Firebase 中的身份验证，但每次输入电子邮件和密码时，我都会注册失败。这是我的代码：

public class MainActivity extends AppCompatActivity implements View.OnClickListener {

private Button buttonRegsiter;
private EditText editTextEmail;
private EditText editTextPassword;

private ProgressDialog progressDialog;
private FirebaseAuth firebaseAuth;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    System.out.print("In main");
    progressDialog = new ProgressDialog(this);
    firebaseAuth = FirebaseAuth.getInstance();

    buttonRegsiter = (Button) findViewById(R.id.registerUserButton);
    editTextEmail = (EditText) findViewById(R.id.editTextEmail);
    editTextPassword = (EditText) findViewById(R.id.editTextpassword);

    buttonRegsiter.setOnClickListener(this);

}

private void registerUser(){
    String email = editTextEmail.getText().toString().trim();
    String password = editTextPassword.getText().toString().trim();

    if(TextUtils.isEmpty(email)){
        //email field is empty
        Toast.makeText(this,"Please enter email",Toast.LENGTH_LONG).show();
        return;
    }

    if(TextUtils.isEmpty(password)){
        //password is empty
        Toast.makeText(this,"Please enter your password",Toast.LENGTH_LONG).show();
        return;
    }

    //if validations are ok
    //show a progressbar

    progressDialog.setMessage("Registering user...");
    progressDialog.show();

    firebaseAuth.createUserWithEmailAndPassword(email,password)
            .addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
            @Override
                public void onComplete(@NonNull Task<AuthResult> task){
                if(task.isSuccessful()){
                    Toast.makeText(MainActivity.this,"Registration successful",Toast.LENGTH_LONG).show();
                }
                else{
                    Toast.makeText(MainActivity.this,"Failed to register. Please try again", Toast.LENGTH_LONG).show();
            }
              progressDialog.dismiss();
            }});
}


@Override
public void onClick(View view) {
    if(view == buttonRegsiter){
        registerUser();
    }
}
}  

你能告诉我我的代码有什么错误吗？

这是我在 logcat 上遇到的错误

01-03 23:32:49.811 1570-1620/system_process E/SoundPool：错误加载 /system/media/audio/ui/Effect_Tick.ogg

Answer 1

问题是，Effect_Tick.ogg 被 System 用于触摸声音。

1. 您可以尝试使用任何其他声音或
2. 转到设备的声音设置并关闭“触摸声音”，然后重新启动设备/模拟器。

Answer 2

请确保您已在 Firebase 仪表板中启用 使用电子邮件/密码的登录方法

Answer 3

我正在使用 firebase 通过电子邮件和密码进行注册。它可能是不同的方法，但对我有用。

public class MainActivity extends AppCompatActivity {

    private int SIGN_IN_REQUEST_CODE=4;
    private FirebaseAuth mAuth;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        FirebaseApp.initializeApp(this);
        setContentView(R.layout.activity_main);
        mAuth = FirebaseAuth.getInstance();

        if(FirebaseAuth.getInstance().getCurrentUser() == null) {
            // Start sign in/sign up activity
            startActivityForResult(
                    AuthUI.getInstance()
                            .createSignInIntentBuilder()
                            .build(),
                    SIGN_IN_REQUEST_CODE
            );
        } else {
            // User is already signed in. Therefore, display
            // a welcome Toast
            Toast.makeText(this,
                    "Welcome " + FirebaseAuth.getInstance()
                            .getCurrentUser()
                            .getDisplayName(),
                    Toast.LENGTH_LONG)
                    .show();

            // Load chat room contents
            displayChatMessages();
        }

    }

    private void displayChatMessages() {

    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);

        if(requestCode == SIGN_IN_REQUEST_CODE) {
            if(resultCode == RESULT_OK) {
                Toast.makeText(this,
                        "Successfully signed in. Welcome!",
                        Toast.LENGTH_LONG)
                        .show();
                displayChatMessages();
            } else {
                Toast.makeText(this,
                        "We couldn't sign you in. Please try again later.",
                        Toast.LENGTH_LONG)
                        .show();

                // Close the app
                finish();
            }
        }
    }
}

在(module:app)中添加这个额外的依赖，把apply插件放在(module:aap)的底部

dependencies {
    compile 'com.google.firebase:firebase-core:9.2.0'
    compile 'com.google.firebase:firebase-auth:9.2.0'
    compile 'com.google.firebase:firebase-messaging:9.2.0'
    implementation 'com.firebaseui:firebase-ui:3.1.2'
}
apply plugin: 'com.google.gms.google-services'

并在项目级模块中添加这个额外的依赖项。

dependencies {
        classpath 'com.android.tools.build:gradle:3.0.1'

        classpath 'com.google.gms:google-services:3.1.0'
    }

请在 Firebase 仪表板中使用电子邮件/密码启用登录方法