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Copy pathFirebase_auth.java
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160 lines (132 loc) · 5.25 KB
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// Fire base sign in
//add to grade
compile 'com.google.firebase:firebase-auth:9.6.1'
//code
/**
* Activity to demonstrate anonymous login and account linking (with an email/password account).
*/
//1- define
private static final String TAG = "AnonymousAuth";
// [START declare_auth]
private FirebaseAuth mAuth;
// [END declare_auth]
// [START declare_auth_listener]
private FirebaseAuth.AuthStateListener mAuthListener;
// [END declare_auth_listener]
//2- initiailze OnCreate()
// [START initialize_auth]
mAuth = FirebaseAuth.getInstance();
// [END initialize_auth]
// [START auth_state_listener]
mAuthListener = new FirebaseAuth.AuthStateListener() {
@Override
public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
FirebaseUser user = firebaseAuth.getCurrentUser();
if (user != null) {
// User is signed in
Log.d(TAG, "onAuthStateChanged:signed_in:" + user.getUid());
} else {
// User is signed out
Log.d(TAG, "onAuthStateChanged:signed_out");
}
// [START_EXCLUDE]
updateUI(user);
// [END_EXCLUDE]
}
};
// [END auth_state_listener]
private void updateUI(FirebaseUser user) {
hideProgressDialog();
String Email=user.getEmail();
String Uid= user.getUid();
}
// [START on_start_add_listener]
@Override
public void onStart() {
super.onStart();
mAuth.addAuthStateListener(mAuthListener);
}
// [END on_start_add_listener]
// [START on_stop_remove_listener]
@Override
public void onStop() {
super.onStop();
if (mAuthListener != null) {
mAuth.removeAuthStateListener(mAuthListener);
}
}
// [END on_stop_remove_listener]
private void signInAnonymously() {
showProgressDialog();
// [START signin_anonymously]
mAuth.signInAnonymously()
.addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
Log.d(TAG, "signInAnonymously:onComplete:" + task.isSuccessful());
// If sign in fails, display a message to the user. If sign in succeeds
// the auth state listener will be notified and logic to handle the
// signed in user can be handled in the listener.
if (!task.isSuccessful()) {
Log.w(TAG, "signInAnonymously", task.getException());
Toast.makeText(MainActivity.this, "Authentication failed.",
Toast.LENGTH_SHORT).show();
}
// [START_EXCLUDE]
hideProgressDialog();
// [END_EXCLUDE]
}
});
// [END signin_anonymously]
}
private void signOut() {
mAuth.signOut();
}
private void linkAccount() {
// Get email and password from form
String email = "User_Email";
String password ="User_Password";
// Create EmailAuthCredential with email and password
AuthCredential credential = EmailAuthProvider.getCredential(email, password);
// Link the anonymous user to the email credential
showProgressDialog();
// [START link_credential]
mAuth.getCurrentUser().linkWithCredential(credential)
.addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
Log.d(TAG, "linkWithCredential:onComplete:" + task.isSuccessful());
// If sign in fails, display a message to the user. If sign in succeeds
// the auth state listener will be notified and logic to handle the
// signed in user can be handled in the listener.
if (!task.isSuccessful()) {
Toast.makeText(MainActivity.this, "Authentication failed.",
Toast.LENGTH_SHORT).show();
}
// [START_EXCLUDE]
hideProgressDialog();
// [END_EXCLUDE]
}
});
// [END link_credential]
}
@VisibleForTesting
public ProgressDialog mProgressDialog;
public void showProgressDialog() {
if (mProgressDialog == null) {
mProgressDialog = new ProgressDialog(this);
mProgressDialog.setMessage(getString(R.string.loading));
mProgressDialog.setIndeterminate(true);
}
mProgressDialog.show();
}
public void hideProgressDialog() {
if (mProgressDialog != null && mProgressDialog.isShowing()) {
mProgressDialog.dismiss();
}
}
@Override
public void onStop() {
super.onStop();
hideProgressDialog();
}