Android Spinner 获取选择

Question

我使用 Android 项目。这是我的小代码

      //SpinAdapter is custom class
        SpinAdapter fromAdapter = new SpinAdapter(getActivity(), 0, new ArrayList<Cities>()); 

          // private Spinner mFrom;
         mFrom.setAdapter(fromAdapter);

         AsyncHttpClient.get(url, null, new HttpResponseHandler() {
            @Override
            public void onOperationSuccess(String response) {
                Type listOfTestObject = new TypeToken<ArrayList<Cities>>() {
                }.getType();
                ArrayList<Cities> list = new Gson().fromJson(response, listOfTestObject);
                fromAdapter.addAll(list);
               Cities selectionId=mFrom.getSelection()
            }

            @Override
            public void onFailure(String message) {

            }
        });

var selectionId 为空？为什么？

谁能帮帮我？

Answer 1

对于 Spinner，您需要使用 getSelectedItem()，而不是 getSelection()

你可以通过getSelectedItem().toString()获取字符串