FirebaseUI电子邮件在启动时启动电子邮件登录流

Question

我的FirebaseUI有问题。问题是，它在启动时启动了电子邮件登录流，而没有点击任何内容。我希望它显示不同的登录选项，但它一直在启动电子邮件登录流程。我想让它显示这个：

图像

但相反，每当应用程序启动时，它都会直接进入电子邮件登录流，而无需单击任何内容。我从来没有选择Facebook或谷歌

图像

这是我的LoginActivity

public class LoginActivity extends AppCompatActivity {
private static final int MY_REQUEST_CODE = 7117;
private FirebaseAuth mAuth;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mAuth = FirebaseAuth.getInstance();
setContentView(R.layout.activity_login);
showSignInOptions();
}
@Override
protected void onStart() {
super.onStart();
FirebaseUser currentUser = mAuth.getCurrentUser();
if (currentUser != null) {
startActivity(new Intent(LoginActivity.this, MainActivity.class));
}
else {
Toast.makeText(this, "", Toast.LENGTH_SHORT).show();
}
}
public void showSignInOptions() {
AuthMethodPickerLayout loginLayout = new AuthMethodPickerLayout
.Builder(R.layout.activity_login)
.setEmailButtonId(R.id.email_button)
.setFacebookButtonId(R.id.facebook_button)
.setGoogleButtonId(R.id.google_button)
.build();
startActivityForResult(
AuthUI.getInstance().createSignInIntentBuilder()
.setTheme(R.style.AppTheme)
.setAuthMethodPickerLayout(loginLayout)
.build(), MY_REQUEST_CODE
);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == MY_REQUEST_CODE) {
IdpResponse response = IdpResponse.fromResultIntent(data);
if (resultCode == RESULT_OK) {
startActivity(new Intent(LoginActivity.this, MainActivity.class));
FirebaseUser user = FirebaseAuth.getInstance().getCurrentUser();
Toast.makeText(this, "Welcome " + user.getDisplayName(), Toast.LENGTH_SHORT).show();
}
else {
Toast.makeText(this, "" + response.getError().getMessage(), Toast.LENGTH_SHORT).show();
}
}
}

我在代码中看不到任何地方说它应该启动电子邮件流。请帮帮我。提前感谢

Answer 1

修复了它。我只需要使用

setAvailableProviders();

对于我的SignInIntentBuilder((；

我的新登录活动代码：

public class LoginActivity extends AppCompatActivity {
private static final int MY_REQUEST_CODE = 7117;
private FirebaseAuth mAuth;
@Override
protected void onStart(){
super.onStart();
FirebaseUser currentUser = mAuth.getCurrentUser();
if (currentUser != null) {
startActivity(new Intent(LoginActivity.this, MainActivity.class));
Toast.makeText(this, "Welcome back " + currentUser.getDisplayName(), Toast.LENGTH_SHORT).show();
}
else {
Toast.makeText(this, "Please log in", Toast.LENGTH_SHORT).show();
}
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
mAuth = FirebaseAuth.getInstance();
showSignInOptions();
}
private void showSignInOptions() {
List<AuthUI.IdpConfig> providers = new ArrayList<>();
providers.add(new AuthUI.IdpConfig.EmailBuilder().build());
providers.add(new AuthUI.IdpConfig.FacebookBuilder().build());
providers.add(new AuthUI.IdpConfig.GoogleBuilder().build());
AuthUI.SignInIntentBuilder builder = AuthUI.getInstance().createSignInIntentBuilder();
AuthMethodPickerLayout loginLayout = new AuthMethodPickerLayout
.Builder(R.layout.activity_login)
.setEmailButtonId(R.id.email_button)
.setFacebookButtonId(R.id.facebook_button)
.setGoogleButtonId(R.id.google_button)
.build();
startActivityForResult(
builder.setAuthMethodPickerLayout(loginLayout)
.setAvailableProviders(providers)
.setTheme(R.style.AppTheme)
.setIsSmartLockEnabled(false)
.build(), MY_REQUEST_CODE);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == MY_REQUEST_CODE) {
IdpResponse response = IdpResponse.fromResultIntent(data);
if (resultCode == RESULT_OK) {
FirebaseUser user = FirebaseAuth.getInstance().getCurrentUser();
Toast.makeText(this, "Welcome " + user.getDisplayName(), Toast.LENGTH_SHORT).show();
}
else {
Toast.makeText(this, "" + response.getError().getMessage(), Toast.LENGTH_SHORT).show();
}
}
}

在这里找到了一个相关的stackoverflow问题

Answer 2

这是启动登录流的代码：

startActivityForResult(
AuthUI.getInstance().createSignInIntentBuilder()
.setTheme(R.style.AppTheme)
.setAuthMethodPickerLayout(loginLayout)
.build(), MY_REQUEST_CODE
);

startActivityForResult完全按照它所说的去做——它启动一个活动，在这种情况下，它被告知启动Firebase UI活动。由于您在onCreate期间调用它，因此当前活动对用户来说永远不可见。