Integrating google sign in, sign in button visibility not changing on UpdateUI method - android-studio

Question

I am trying to integrate a google sign in feature for my app. Its mostly working fine and I can sign in ok.
However, when the user is signed in, the sign in buttons visibility is supposed to be false, and then a LinearLayout which includes two text views and a log out button is supposed to become visible.
Here is the code of the main layout activity which has all the text views, buttons etc
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".MainActivity">
<LinearLayout
android:id="#+id/prof_section"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="20dp"
android:layout_marginTop="50dp"
android:orientation="horizontal">
<ImageView
android:id="#+id/Prof_Pic"
android:layout_width="90dp"
android:layout_height="wrap_content"
tools:srcCompat="#tools:sample/avatars" />
<LinearLayout
android:layout_width="255dp"
android:layout_height="wrap_content"
android:layout_marginLeft="28dp"
android:layout_marginTop="20dp"
android:layout_marginRight="20dp"
android:orientation="vertical">
<TextView
android:id="#+id/Name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="Display name here"
android:textSize="18dp"
android:textStyle="bold" />
<TextView
android:id="#+id/Email"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:gravity="center"
android:text="Display email here"
android:textSize="12dp"
android:textStyle="bold" />
<Button
android:id="#+id/SignOut"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Logout"
tools:layout_editor_absoluteX="159dp"
tools:layout_editor_absoluteY="506dp" />
</LinearLayout>
</LinearLayout>
<com.google.android.gms.common.SignInButton
android:id="#+id/sign_in_button"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="60dp"
android:layout_marginRight="50dp"
android:layout_marginLeft="50dp"/>
</LinearLayout>
Here is the Main Activity file with all the code
private LinearLayout prof_section;
private LinearLayout LsignIn;
private Button SignOut;
private SignInButton SignIn;
private TextView Name,Email;
private ImageView Prof_Pic;
private GoogleApiClient GoogleApiClient;
private static final int REQ_CODE = 9001;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//setting variables as correct object
prof_section = (LinearLayout)findViewById(R.id.prof_section);
SignOut = (Button)findViewById(R.id.SignOut);
SignIn = (SignInButton)findViewById(R.id.sign_in_button);
Name = (TextView)findViewById(R.id.Name);
Email = (TextView)findViewById(R.id.Email);
Prof_Pic = (ImageView)findViewById(R.id.Prof_Pic);
//register buttons for onclick listener
SignIn.setOnClickListener(this);
SignOut.setOnClickListener(this);
//setting linearlayout and button to visible/invisible
prof_section.setVisibility(View.GONE);
SignIn.setVisibility(View.VISIBLE);
GoogleSignInOptions SignInOptions = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN).requestEmail ().build();
GoogleApiClient = new GoogleApiClient.Builder(this).enableAutoManage(this,this).addApi(Auth.GOOGLE_ SIGN_IN_API,SignInOptions).build();
}
protected void onStart() {
super.onStart();
}
#Override
public void onClick(View v) {
switch (v.getId())
{
case R.id.sign_in_button:
SignIn();
break;
case R.id.SignOut:
SignOut();
break;
}
}
#Override
public void onConnectionFailed(#NonNull ConnectionResult connectionResult) {
}
private void SignIn() {
Intent intent = Auth.GoogleSignInApi.getSignInIntent(GoogleApiClient);
startActivityForResult(intent,REQ_CODE);
}
private void SignOut() {
Auth.GoogleSignInApi.signOut(GoogleApiClient).setResultCallback(new ResultCallback<Status>() {
#Override
public void onResult(#NonNull Status status) {
UpdateUI(false);
}
});
}
private void handleResult(GoogleSignInResult result) {
if(result.isSuccess())
{
GoogleSignInAccount account = result.getSignInAccount();
String name = account.getDisplayName();
String email = account.getEmail();
String img_url = account.getPhotoUrl().toString();
Name.setText(name);
Email.setText(email);
//Glide.vith(this).load(img_url).into(Prof_Pic);
UpdateUI(true);
}
else
{
UpdateUI(false);
}
}
private void UpdateUI(boolean isLogin) {
if(isLogin)
{
prof_section.setVisibility(View.VISIBLE);
SignIn.setVisibility(View.GONE);
}
else
{
prof_section.setVisibility(View.GONE);
SignIn.setVisibility(View.VISIBLE);
}
Im getting no error messages when I run the app

Answer 1

Since you are calling activitywithresult() function which returns the result, So you will get the result in onActivityResult(). As you are not having any Result handler you are not able to handle the result. You need to add onActivityResult(). If you get the result their, then you have to call your function handleResult() to know whether user is successfully signed in or not.
Just add this code:
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
// Result returned from launching the Intent from GoogleSignInClient.getSignInIntent(...);
if (requestCode == REQ_CODE) {
// The Task returned from this call is always completed, no need to attach
// a listener.
Task<GoogleSignInAccount> task = GoogleSignIn.getSignedInAccountFromIntent(data);
handleResult(task);
}
}
private void handleResult(Task<GoogleSignInAccount> completedTask) {
try {
GoogleSignInAccount account = completedTask.getResult(ApiException.class);
String name = account.getDisplayName();
String email = account.getEmail();
String img_url = account.getPhotoUrl().toString();
Name.setText(name);
Email.setText(email);
//Glide.vith(this).load(img_url).into(Prof_Pic);
UpdateUI(true);
} catch (ApiException e) {
// The ApiException status code indicates the detailed failure reason.
// Please refer to the GoogleSignInStatusCodes class reference for more information.
Log.w(TAG, "signInResult:failed code=" + e.getStatusCode());
UpdateUI(false);
}
}