从片段中注销 google 帐户（底部导航）

Question

由于注销按钮在 fragment 上，我不能将“this”用作 Activity，有什么可以替换的吗？

    GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
        .requestIdToken(getString(R.string.default_web_client_id))
        .requestEmail()
        .build();
GoogleSignInClient mGoogleSignInClient = GoogleSignIn.getClient(this,gso);

错误信息

error: no suitable method found for getClient(DashboardFragment,GoogleSignInOptions)
GoogleSignInClient mGoogleSignInClient = GoogleSignIn.getClient(this,gso);
                                                     ^
method GoogleSignIn.getClient(Context,GoogleSignInOptions) is not applicable
  (argument mismatch; DashboardFragment cannot be converted to Context)
method GoogleSignIn.getClient(Activity,GoogleSignInOptions) is not applicable
  (argument mismatch; DashboardFragment cannot be converted to Activity)

Answer 1

GoogleSignIn.getClient(Context,GoogleSignInOptions) 需要上下文而不是片段。

这样使用：

GoogleSignInClient mGoogleSignInClient = GoogleSignIn.getClient(getContext(),gso);

请注意，如果未附加片段，getContext() 可能 return null。