我正在为一家公司开发一个应用程序，该公司有几辆公共汽车和电车，它们在不同的路线/线路上行驶，并将客人运送到不同的酒庄。
无论如何，我最初设计的应用程序是让驱动程序使用电子邮件和密码登录到firebase数据库。
但是系统混淆了驱动程序和它的笨重等等，所以我想通过点击一个按钮来实现登录系统的自动化。
这就是我目前所拥有的。
登录系统

public class DriverLoginActivity extends AppCompatActivity implements AdapterView.OnItemSelectedListener {
    private EditText mEmail, mPassword;
    private Button mLogin, mRegistration, mRegisterDriver,mBackBtn;

    private FirebaseAuth mAuth;
    private FirebaseAuth.AuthStateListener firebaseAuthListener;



    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_driver_login);

        mBackBtn = findViewById(R.id.back_login_btn);
        mBackBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(DriverLoginActivity.this,MainActivity.class);
                startActivity(intent);
                finish();
            }
        });
        mRegistration= (Button) findViewById(R.id.btn_reg);
        mRegistration.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(DriverLoginActivity.this, BusRegistrationActivity.class);
                startActivity(intent);
                finish();
                return;
            }
        });

        mAuth = FirebaseAuth.getInstance();

    firebaseAuthListener = new FirebaseAuth.AuthStateListener() {
        @Override
        public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
            FirebaseUser user = FirebaseAuth.getInstance().getCurrentUser();
            if(user != null){
                Intent intent = new Intent(DriverLoginActivity.this, DriverMapActivity.class);
                startActivity(intent);
                finish();
                return;
            }
        }
    };

    mEmail = (EditText) findViewById(R.id.email);
    mPassword = (EditText) findViewById(R.id.password);

        mLogin = (Button) findViewById(R.id.login);
        mLogin.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            final String email = mEmail.getText().toString().replace(" ","");
            final String password = mPassword.getText().toString().replace(" ","");

            if(!TextUtils.isEmpty(email) && !TextUtils.isEmpty(password)) {
                mAuth.signInWithEmailAndPassword(email, password).addOnCompleteListener(DriverLoginActivity.this, new OnCompleteListener<AuthResult>() {
                    @Override
                    public void onComplete(@NonNull Task<AuthResult> task) {
                        if (!task.isSuccessful()) {

                            Toast.makeText(DriverLoginActivity.this, "sign in error", Toast.LENGTH_SHORT).show();
                        } else
                            mAuth.addAuthStateListener(firebaseAuthListener);
                    }
                });

            }
        }
    });


}

    @Override
    protected void onStart() {
        super.onStart();
        mAuth.addAuthStateListener(firebaseAuthListener);
    }

    @Override
    protected void onStop() {
        super.onStop();
        mAuth.removeAuthStateListener(firebaseAuthListener);
    }




    @Override
    public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
    }


    @Override
    public void onNothingSelected(AdapterView<?> parent) {

    }
}

最佳答案

像这样，创建一个验证用户身份的方法。

  public void authenticateUser(final String mEmail, final String mPassword){

        final String email = mEmail.replace(" ","");
        final String password = mPassword.replace(" ","");

        if(!TextUtils.isEmpty(email) && !TextUtils.isEmpty(password)) {
            mAuth.signInWithEmailAndPassword(email, password).addOnCompleteListener(DriverLoginActivity.this, new OnCompleteListener<AuthResult>() {
                @Override
                public void onComplete(@NonNull Task<AuthResult> task) {
                    if (!task.isSuccessful()) {

                        Toast.makeText(DriverLoginActivity.this, "sign in error", Toast.LENGTH_SHORT).show();
                    } else
                        mAuth.addAuthStateListener(firebaseAuthListener);
                }
            });

        }

    }

        mLogin = (Button) findViewById(R.id.login);
        mLogin.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                authenticateUser("redlinedriver@bus.com","123456");
            }
        });

关于java - 如何使用Button自动向Firebase进行身份验证 - Java，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/57187776/