1
我一直在试图遵循这个特定的教程http://www.androidhive.info/2014/02/android-login-with-google-plus-account-1/和其他教程如何将谷歌登录到我的应用程序。问题是，当我选择一个帐户。该应用程序突然崩溃，任何人都可以请帮助我。集成谷歌登录android崩溃应用程序
这是我收到的logcat：
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.gin.login, PID: 20197
java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=7, result=-1, data=Intent { (has extras) }} to activity {com.example.gin.login/com.example.gin.login.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String android.net.Uri.toString()' on a null object reference
at android.app.ActivityThread.deliverResults(ActivityThread.java:4734)
at android.app.ActivityThread.handleSendResult(ActivityThread.java:4777)
at android.app.ActivityThread.access$1500(ActivityThread.java:211)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1754)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:6918)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1404)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1199)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String android.net.Uri.toString()' on a null object reference
at com.example.gin.login.MainActivity.handleSignInResult(MainActivity.java:109)
at com.example.gin.login.MainActivity.onActivityResult(MainActivity.java:156)
at android.app.Activity.dispatchActivityResult(Activity.java:6833)
at android.app.ActivityThread.deliverResults(ActivityThread.java:4730)
at android.app.ActivityThread.handleSendResult(ActivityThread.java:4777)
at android.app.ActivityThread.access$1500(ActivityThread.java:211)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1754)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:6918)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1404)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1199)
我的MainActivity类别：
public class MainActivity extends AppCompatActivity implements View.OnClickListener,
GoogleApiClient.OnConnectionFailedListener {
private static final String TAG = MainActivity.class.getSimpleName();
private static final int RC_SIGN_IN = 007;
private GoogleApiClient mGoogleApiClient;
private ProgressDialog mProgressDialog;
private SignInButton btnSignIn;
private Button btnSignOut, btnRevokeAccess;
private LinearLayout llProfileLayout;
private ImageView imgProfilePic;
private TextView txtName, txtEmail;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btnSignIn = (SignInButton) findViewById(R.id.btn_sign_in);
btnSignOut = (Button) findViewById(R.id.btn_sign_out);
btnRevokeAccess = (Button) findViewById(R.id.btn_revoke_access);
llProfileLayout = (LinearLayout) findViewById(R.id.llProfile);
imgProfilePic = (ImageView) findViewById(R.id.imgProfilePic);
txtName = (TextView) findViewById(R.id.txtName);
txtEmail = (TextView) findViewById(R.id.txtEmail);
btnSignIn.setOnClickListener(this);
btnSignOut.setOnClickListener(this);
btnRevokeAccess.setOnClickListener(this);
GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
.requestEmail()
.build();
mGoogleApiClient = new GoogleApiClient.Builder(this)
.enableAutoManage(this, this)
.addApi(Auth.GOOGLE_SIGN_IN_API, gso)
.build();
// Customizing G+ button
btnSignIn.setSize(SignInButton.SIZE_STANDARD);
btnSignIn.setScopes(gso.getScopeArray());
}
private void signIn() {
Intent signInIntent = Auth.GoogleSignInApi.getSignInIntent(mGoogleApiClient);
startActivityForResult(signInIntent, RC_SIGN_IN);
}
private void signOut() {
Auth.GoogleSignInApi.signOut(mGoogleApiClient).setResultCallback(
new ResultCallback<Status>() {
@Override
public void onResult(Status status) {
updateUI(false);
}
});
}
private void revokeAccess() {
Auth.GoogleSignInApi.revokeAccess(mGoogleApiClient).setResultCallback(
new ResultCallback<Status>() {
@Override
public void onResult(Status status) {
updateUI(false);
}
});
}
private void handleSignInResult(GoogleSignInResult result) {
Log.d(TAG, "handleSignInResult:" + result.isSuccess());
if (result.isSuccess()) {
// Signed in successfully, show authenticated UI.
GoogleSignInAccount acct = result.getSignInAccount();
Log.e(TAG, "display name: " + acct.getDisplayName());
String personName = acct.getDisplayName();
String personPhotoUrl = acct.getPhotoUrl().toString();
String email = acct.getEmail();
Log.e(TAG, "Name: " + personName + ", email: " + email
+ ", Image: " + personPhotoUrl);
txtName.setText(personName);
txtEmail.setText(email);
Glide.with(getApplicationContext()).load(personPhotoUrl)
.thumbnail(0.5f)
.crossFade()
.diskCacheStrategy(DiskCacheStrategy.ALL)
.into(imgProfilePic);
updateUI(true);
} else {
// Signed out, show unauthenticated UI.
updateUI(false);
}
}
@Override
public void onClick(View v) {
int id = v.getId();
switch (id) {
case R.id.btn_sign_in:
signIn();
break;
case R.id.btn_sign_out:
signOut();
break;
case R.id.btn_revoke_access:
revokeAccess();
break;
}
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
// Result returned from launching the Intent from GoogleSignInApi.getSignInIntent(...);
if (requestCode == RC_SIGN_IN) {
GoogleSignInResult result = Auth.GoogleSignInApi.getSignInResultFromIntent(data);
handleSignInResult(result);
}
}
@Override
public void onStart() {
super.onStart();
OptionalPendingResult<GoogleSignInResult> opr = Auth.GoogleSignInApi.silentSignIn(mGoogleApiClient);
if (opr.isDone()) {
// If the user's cached credentials are valid, the OptionalPendingResult will be "done"
// and the GoogleSignInResult will be available instantly.
Log.d(TAG, "Got cached sign-in");
GoogleSignInResult result = opr.get();
handleSignInResult(result);
} else {
// If the user has not previously signed in on this device or the sign-in has expired,
// this asynchronous branch will attempt to sign in the user silently. Cross-device
// single sign-on will occur in this branch.
showProgressDialog();
opr.setResultCallback(new ResultCallback<GoogleSignInResult>() {
@Override
public void onResult(GoogleSignInResult googleSignInResult) {
hideProgressDialog();
handleSignInResult(googleSignInResult);
}
});
}
}
@Override
public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
// An unresolvable error has occurred and Google APIs (including Sign-In) will not
// be available.
Log.d(TAG, "onConnectionFailed:" + connectionResult);
}
private void showProgressDialog() {
if (mProgressDialog == null) {
mProgressDialog = new ProgressDialog(this);
mProgressDialog.setMessage("LOADING");
mProgressDialog.setIndeterminate(true);
}
mProgressDialog.show();
}
private void hideProgressDialog() {
if (mProgressDialog != null && mProgressDialog.isShowing()) {
mProgressDialog.hide();
}
}
private void updateUI(boolean isSignedIn) {
if (isSignedIn) {
btnSignIn.setVisibility(View.GONE);
btnSignOut.setVisibility(View.VISIBLE);
btnRevokeAccess.setVisibility(View.VISIBLE);
llProfileLayout.setVisibility(View.VISIBLE);
} else {
btnSignIn.setVisibility(View.VISIBLE);
btnSignOut.setVisibility(View.GONE);
btnRevokeAccess.setVisibility(View.GONE);
llProfileLayout.setVisibility(View.GONE);
}
}
这是我的等级（项目）：
dependencies {
classpath 'com.android.tools.build:gradle:2.2.3'
classpath 'com.google.gms:google-services:3.0.0'
}
这是我的等级（模块）：
dependencies {
compile 'com.google.android.gms:play-services-auth:9.2.1'
compile 'com.github.bumptech.glide:glide:3.7.0'
}
感谢您提前提供任何帮助！ ：d
添加您的活动代码也 –
@MM我已经加入我的代码先生：d –
你让谷歌登录功能？ –