在您的 Android 应用中添加 Google 登录
配置“Google 登录”和“冒号”;
// Configure sign-in to request the user's ID, email address, and basic // profile. ID and basic profile are included in DEFAULT_SIGN_IN. GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN) .requestEmail() .build();
// Build a GoogleSignInClient with the options specified by gso. mGoogleSignInClient = GoogleSignIn.getClient(this, gso);
然后,当点击登录按钮时,启动登录 intent 并
private void signIn() { Intent signInIntent = mGoogleSignInClient.getSignInIntent(); startActivityForResult(signInIntent, RC_SIGN_IN); }
系统会提示用户选择用于登录的 Google 帐号。如果您请求的范围超出 profile
、email
和 openid
,系统还会提示用户授予对所请求资源的访问权限。
最后,处理 activity 结果和冒号。
@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 == RC_SIGN_IN) { // The Task returned from this call is always completed, no need to attach // a listener. Task<GoogleSignInAccount> task = GoogleSignIn.getSignedInAccountFromIntent(data); handleSignInResult(task); } }
private void handleSignInResult(Task<GoogleSignInAccount> completedTask) { try { GoogleSignInAccount account = completedTask.getResult(ApiException.class); // Signed in successfully, show authenticated UI. updateUI(account); } 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(null); } }

准备好将 Google 登录功能集成到您的 Android 应用了吗?