新人安卓原生app集成钉钉登录

安卓原生app集成钉钉登录，按照按照https://open.dingtalk.com/document文档来做，获取的的返回值一直为空，代码如下

public class DDAuthActivity extends AppCompatActivity {

@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    double random = Math.random();
    AuthLoginParam.AuthLoginParamBuilder  builder = AuthLoginParam.AuthLoginParamBuilder.newBuilder();
    builder.appId("我的appid");
    builder.redirectUri("我的url");
    builder.responseType("code");
    builder.scope("openid%20corpid");
    builder.state(Double.toString(random));
    builder.prompt("consent");
    IDDAuthApi authApi  = DDAuthApiFactory.createDDAuthApi(this, builder.build());
     authApi.authLogin();
    Intent intent = getIntent();
    String authCode = intent.getStringExtra(DDAuthConstant.CALLBACK_EXTRA_AUTH_CODE);
    String state = intent.getStringExtra(DDAuthConstant.CALLBACK_EXTRA_STATE);
    String error = intent.getStringExtra(DDAuthConstant.CALLBACK_EXTRA_ERROR);

    if(!TextUtils.isEmpty(authCode) && !TextUtils.isEmpty(state)) {
        // 授权成功
    } else {
        // 授权失败
    }
    finish();
}

}