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我试图将谷歌登录与我的应用程序，它是按需工作。但是当我关闭应用程序时，它要求再次登录，我不想要。我正在尝试silentSignIn，但这没有帮助。我希望用户在登录后查看MainActivity。谷歌登录每次关闭应用程序后出现android
import android.app.ProgressDialog;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.support.annotation.NonNull;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import com.facebook.CallbackManager;
import com.facebook.FacebookSdk;
import com.google.android.gms.auth.api.Auth;
import com.google.android.gms.auth.api.signin.GoogleSignInAccount;
import com.google.android.gms.auth.api.signin.GoogleSignInOptions;
import com.google.android.gms.auth.api.signin.GoogleSignInResult;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.Scopes;
import com.google.android.gms.common.SignInButton;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.common.api.OptionalPendingResult;
import com.google.android.gms.common.api.ResultCallback;
import com.google.android.gms.common.api.Scope;
import com.google.android.gms.common.api.Status;
import com.google.android.gms.plus.Plus;
import com.google.android.gms.plus.model.people.Person;
public class LoginActivity extends AppCompatActivity implements View.OnClickListener, GoogleApiClient.OnConnectionFailedListener {
private static final String TAG = "LoginActivity";
private GoogleApiClient mGoogleApiClient;
private static final int RC_SIGN_IN = 9001;
private ProgressDialog mProgressDialog;
private String mFullName ;
private String mEmail ;
private String mAccountId ;
private int mGender ;
private String mRights;
private String mBirthDay ;
//CallbackManager callbackManager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
findViewById(R.id.sign_in_button).setOnClickListener(this);
GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
.requestEmail()
.build();
mGoogleApiClient = new GoogleApiClient.Builder(this)
.enableAutoManage(this /* FragmentActivity */, this /* OnConnectionFailedListener */)
.addApi(Auth.GOOGLE_SIGN_IN_API, gso)
.addApi(Plus.API)
.addScope(new Scope(Scopes.PROFILE))
.addScope(new Scope(Scopes.EMAIL))
.build();
SignInButton signInButton = (SignInButton) findViewById(R.id.sign_in_button);
signInButton.setSize(SignInButton.SIZE_STANDARD);
signInButton.setScopes(gso.getScopeArray());
/*FacebookSdk.sdkInitialize(getApplicationContext());
callbackManager = CallbackManager.Factory.create();*/
}
/**
* Called when a view has been clicked.
*
* @param v The view that was clicked.
*/
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.sign_in_button:
signIn();
break;
/*case R.id.sign_out_button:
signOut();
break;
case R.id.disconnect_button:
revokeAccess();
*/ // break;
}
}
@Override
public void onStart() {
super.onStart();
OptionalPendingResult<GoogleSignInResult> opr = Auth.GoogleSignInApi.silentSignIn(mGoogleApiClient);
if (opr.isDone()) {
Log.d(TAG, "Got cached sign-in");
GoogleSignInResult result = opr.get();
handleSignInResult(result);
} else {
showProgressDialog();
opr.setResultCallback(new ResultCallback<GoogleSignInResult>() {
@Override
public void onResult(@NonNull GoogleSignInResult googleSignInResult) {
hideProgressDialog();
handleSignInResult(googleSignInResult);
}
});
}
}
private void signIn() {
Intent signInIntent = Auth.GoogleSignInApi.getSignInIntent(mGoogleApiClient);
startActivityForResult(signInIntent, RC_SIGN_IN);
}
/*public void getUserDetails(){
GoogleSignInResult result = Auth.GoogleSignInApi.getSignInResultFromIntent(data);
GoogleSignInAccount acct = result.getSignInAccount();
String personName = acct.getDisplayName();
String personEmail = acct.getEmail();
String personId = acct.getId();
Uri personPhoto = acct.getPhotoUrl();
}*/
private void handleSignInResult(GoogleSignInResult result) {
Log.d(TAG, "handleSignInResult:" + result.isSuccess());
Log.d(TAG,"handleSignInResult Result : " + result);
if (result.isSuccess()) {
// Signed in successfully, show authenticated UI.
GoogleSignInAccount acct = result.getSignInAccount();
// mStatusTextView.setText(getString(R.string.signed_in_fmt, acct.getDisplayName()));
//updateUI(true);
showSignedInUI();
} else {
// Signed out, show unauthenticated UI.
//updateUI(false);
}
}
@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);
if(result.isSuccess()){
GoogleSignInAccount acct = result.getSignInAccount();
// Get account information
mFullName = acct.getDisplayName();
mEmail = acct.getEmail();
mAccountId = acct.getId();
Uri personPhoto = acct.getPhotoUrl();
if (Plus.PeopleApi.getCurrentPerson(mGoogleApiClient) != null) {
Person currentPerson = Plus.PeopleApi.getCurrentPerson(mGoogleApiClient);
mGender = currentPerson.getGender();
mBirthDay = currentPerson.getBirthday();
mRights = currentPerson.getBraggingRights();
}
Log.d(TAG,"User Details : Name : " + mFullName + " Email : " + mEmail + " Account Id : " + mAccountId);
Log.d(TAG,"Photo URL : " + personPhoto);
Log.d(TAG, " Gender : " + mGender + " BirthDay : " + mBirthDay + " Rights : " + mRights);
}
}
}
private void signOut() {
Auth.GoogleSignInApi.signOut(mGoogleApiClient).setResultCallback(
new ResultCallback<Status>() {
@Override
public void onResult(Status status) {
// [START_EXCLUDE]
// updateUI(false);
// [END_EXCLUDE]
}
});
}
private void revokeAccess() {
Auth.GoogleSignInApi.revokeAccess(mGoogleApiClient).setResultCallback(
new ResultCallback<Status>() {
@Override
public void onResult(Status status) {
// [START_EXCLUDE]
//updateUI(false);
// showSignedInUI();
// [END_EXCLUDE]
}
});
}
@Override
public void onConnectionFailed(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(getString(R.string.loading));
mProgressDialog.setMessage(getString(R.string.loading));
mProgressDialog.setIndeterminate(true);
}
mProgressDialog.show();
}
private void hideProgressDialog() {
if (mProgressDialog != null && mProgressDialog.isShowing()) {
mProgressDialog.hide();
}
}
private void showSignedInUI() {
Log.d(TAG, "showSignedInUI: " + mGoogleApiClient.isConnected());
if (mGoogleApiClient.isConnected()) {
//getProfileInformation();
final Context context = this;
Intent intent = new Intent(context, MapsActivity.class);
startActivity(intent);
finish();
}
}
}