对spinner小结

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一个完整的spinner从服务器获取数据然后显示的过程，同时对重复显示数据进行了处理

 adapter.notifyDataSetChanged();

 private static  String[] m = null;private List<SpinnerBean.ListBean> list_spinner;private List<String> list1 = new ArrayList<String>();  //spinner数据        HttpUtils http2 = new HttpUtils();        http2.send(HttpRequest.HttpMethod.GET, HttpUrl.User_Spinner, new RequestCallBack<String>() {            @Override            public void onSuccess(ResponseInfo<String> responseInfo) {                String str = responseInfo.result;                L.d("HomePager", str);                Gson gson = new Gson();                SpinnerBean spinnerBean = gson.fromJson(responseInfo.result, SpinnerBean.class);                list_spinner = spinnerBean.getList();                Iterator it = list_spinner.iterator();                StringBuffer stringBuffer = new StringBuffer();                while (it.hasNext()) {                    SpinnerBean.ListBean listBean = (SpinnerBean.ListBean) it.next();                    String name = listBean.getName();                    list1.add(name);                }                 m = new String[list1.size()];                m = list1.toArray(m);                //Spinner                // 将可选内容与ArrayAdapter连接起来                adapter = new ArrayAdapter<String>(mActivity, android.R.layout.simple_spinner_item, m);                //设置下拉列表的风格                adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);                //将adapter 添加到spinner中                sr_city.setAdapter(adapter);               adapter.notifyDataSetChanged();                //添加事件Spinner事件监听                sr_city.setOnItemSelectedListener(new SpinnerSelectedListener());                //设置默认值                sr_city.setVisibility(View.VISIBLE);            }            @Override            public void onFailure(HttpException error, String msg) {                L.d("HomePager", error.getExceptionCode() + ":" + msg);            }        });   private class SpinnerSelectedListener implements AdapterView.OnItemSelectedListener {        @Override        public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {        }        @Override        public void onNothingSelected(AdapterView<?> parent) {        }    }

布局文件

  <Spinner            android:id="@+id/sr_city"            android:layout_marginLeft="10dp"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_centerVertical="true"            >        </Spinner>

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