从片段中注销谷歌帐户（底部导航）

Question

由于退出按钮在片段上，我不能将“this”用作 Activity，我可以用什么替换？

    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，如果片段未附加，getContext() 可能会返回 null。