I followed all steps mentioned in developer.google.com to implement the googleplus api in my application.
I'm integrating the googleplus api in the fragment and i'm getting an ClassCastException when i run the code. My Fragment Class:
import com.digiapes.apeonomy.animation.Positions;
import com.example.apeonomy.R;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesUtil;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.common.api.GoogleApiClient.ConnectionCallbacks;
import com.google.android.gms.plus.Plus;
import android.animation.ObjectAnimator;
import android.app.Activity;
import android.app.Fragment;
import android.content.Intent;
import android.content.IntentSender.SendIntentException;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.view.ViewTreeObserver.OnGlobalLayoutListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.Toast;
public class Login extends Fragment implements OnGlobalLayoutListener,
OnClickListener, GoogleApiClient.ConnectionCallbacks,
GoogleApiClient.OnConnectionFailedListener {
EditText UN, Pass;
View loginimage, loginusing, loginlayout;
ImageButton flogin, Glogin;
Button login1;
float f;
Positions pos = new Positions();
String name = "Harsha";
String pass = "hahaha";
private static final int RC_SIGNIN = 0;
private static boolean mSignInClicked;
private GoogleApiClient mGoogleApiClient;
private boolean mIntentInProgress;
private boolean mSignedIn;
private ConnectionResult mConnectionResult;
private Activity c;
private boolean mSignedInClicked;
// Login_Register Lg=new Login_Register();
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View login = inflater.inflate(R.layout.login, container, false);
// TODO Auto-generated method stub
UN = (EditText) login.findViewById(R.id.UsernameL);
Pass = (EditText) login.findViewById(R.id.PassswordL);
loginimage = login.findViewById(R.id.LoginImage);
login1 = (Button) login.findViewById(R.id.Login);
loginusing = login.findViewById(R.id.loginusing);
loginlayout = login.findViewById(R.id.LoginLayout);
f = ((Login_Register) getActivity()).pos.getLIpos();
loginimage.getViewTreeObserver().addOnGlobalLayoutListener(this);
UN.getBackground().setAlpha(50);
Pass.getBackground().setAlpha(50);
ObjectAnimator.ofFloat(loginusing, View.ALPHA, 0, 1).setDuration(1000)
.start();
ObjectAnimator.ofFloat(loginlayout, View.ALPHA, 0, 1).setDuration(1000)
.start();
login.findViewById(R.id.googlepluslog).setOnClickListener(this);
login.findViewById(R.id.facebooklog).setOnClickListener(this);
return login;
}
@Override
public void onGlobalLayout() {
pos.setLIpos(loginimage.getY());
// TODO Auto-generated method stub
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onActivityCreated(savedInstanceState);
ObjectAnimator
.ofFloat(loginimage, View.TRANSLATION_Y,
f - loginimage.getY() - 130, 0).setDuration(300)
.start();
login1.setOnClickListener(this);
}
@Override
public void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
mGoogleApiClient = new GoogleApiClient.Builder(getActivity())
.addConnectionCallbacks((ConnectionCallbacks) getActivity().getApplicationContext())
.addOnConnectionFailedListener(this).addApi(Plus.API, null)
.addScope(Plus.SCOPE_PLUS_LOGIN).build();
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
switch (v.getId()) {
case R.id.Login:
if (UN.getText().length() == 0 || Pass.getText().length() == 0) {
Toast.makeText(getActivity(),
"Please enter valid Username and Password",
Toast.LENGTH_SHORT).show();
} else if (UN.getText().toString().equals(name)
&& Pass.getText().toString().equals(pass)) {
Intent intent = new Intent(getActivity()
.getApplicationContext(), Main.class);
startActivity(intent);
}
break;
case R.id.facebooklog:
break;
case R.id.googlepluslog:
signInWithGplus();
break;
}
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
if (requestCode == RC_SIGNIN) {
mIntentInProgress = false;
if (!mGoogleApiClient.isConnecting()) {
mGoogleApiClient.connect();
}
}
}
private void signInWithGplus() {
// TODO Auto-generated method stub
if (!mGoogleApiClient.isConnecting()) {
mSignedIn = true;
resolveSignInerror();
}
}
private void resolveSignInerror() {
// TODO Auto-generated method stub
if (mConnectionResult.hasResolution()) {
try {
mIntentInProgress = true;
mConnectionResult.startResolutionForResult(c, RC_SIGNIN);
} catch (SendIntentException e) {
mIntentInProgress = false;
mGoogleApiClient.connect();
}
}
}
@Override
public void onConnectionFailed(ConnectionResult result) {
// TODO Auto-generated method stub
if (!result.hasResolution()) {
GooglePlayServicesUtil.getErrorDialog(result.getErrorCode(), c, 0)
.show();
return;
}
if(!mIntentInProgress){
mConnectionResult=result;
if(mSignedInClicked)
resolveSignInerror();
}
}
@Override
public void onConnected(Bundle arg0) {
mSignedInClicked=false;
Toast.makeText(c, "Connected", Toast.LENGTH_SHORT).show();
// TODO Auto-generated method stub
}
@Override
public void onConnectionSuspended(int arg0) {
// TODO Auto-generated method stub
mGoogleApiClient.connect();
}
@Override
public void onStart() {
// TODO Auto-generated method stub
super.onStart();
mGoogleApiClient.connect();
}
@Override
public void onStop() {
// TODO Auto-generated method stub
super.onStop();
if (mGoogleApiClient.isConnected()) {
mGoogleApiClient.disconnect();
}
}
}
Getting error at this line:
mGoogleApiClient = new GoogleApiClient.Builder(getActivity())
.addConnectionCallbacks((ConnectionCallbacks) getActivity().getApplicationContext())
.addOnConnectionFailedListener(this).addApi(Plus.API, null)
.addScope(Plus.SCOPE_PLUS_LOGIN).build();
Logcat:
Solution given in Error implementing GoogleApiClient Builder for Android development didn't workout for me...
