Android: java.lang.IllegalStateException: googleapicclient必须

Question

当我试图登录Google Plus时，我正在将Google Plus集成到我的android应用程序中，我的应用程序刚刚崩溃。它说-

java.lang.IllegalStateException: GoogleApiClient must be connected

下面是stacktrace指向的行号，

if (Plus.AccountApi.getAccountName(mGoogleApiClient) != null)
@Override
    public void onConnected(Bundle connectionHint) {
        String personName = "Unknown";
        if (Plus.AccountApi.getAccountName(mGoogleApiClient) != null) {
            personName = Plus.AccountApi.getAccountName(mGoogleApiClient); 
        }
}

我已经完成了整合的所有步骤，将Google play服务添加到我的项目中，并在Google API网站上注册了我的应用。

Answer 1

首先检查它是否连接，然后做你的事情。

GoogleApiClient mGoogleApiClient;
if(mGoogleApiClient.isConnected()){
  // good
}else{
  //connect it
  mGoogleApiClient.connect(GoogleApiClient.SIGN_IN_MODE_OPTIONAL);
}

Answer 2

副本:Android: Google play games services connection error (java.lang.IllegalStateException: GoogleApiClient must be connected.)

无论如何，修改你的代码为:

@Override
    public void onConnected(Bundle connectionHint) {
        String personName = "Unknown";
        if (isSignedIn()) {
          if (Plus.AccountApi.getAccountName(mGoogleApiClient) != null) {
            personName = Plus.AccountApi.getAccountName(mGoogleApiClient); 
          }
        }
}