Android Studio 绑定下拉框数据(网络JSON数据)

效果显示：

1、页面xml代码（项目的代码，直接复制会有错，自己修改一下就好）

<TextView
    android:id="@+id/consultation_tv_section"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_above="@+id/consultation_et_doctor"
    android:layout_alignLeft="@+id/consultation_tv_phone"
    android:layout_alignStart="@+id/consultation_tv_phone"
    android:layout_marginBottom="8dp"
    android:text="挂号科室："
    android:textColor="@color/black"
    android:textSize="18sp"
    android:textStyle="bold" />

<Spinner
    android:id="@+id/consultation_et_section"
    android:layout_width="260dp"
    android:layout_height="40dp"
    android:layout_alignLeft="@+id/consultation_et_phone"
    android:layout_alignStart="@+id/consultation_et_phone"
    android:layout_below="@+id/consultation_et_phone"
    android:layout_marginTop="22dp"
    android:background="@drawable/input_bg"
    android:ems="10"
    android:inputType="textPersonName"
    android:paddingLeft="15dp"
    android:paddingRight="15dp"
    android:spinnerMode="dialog" />

2、java创建自定义参数

Spinner consultation_et_section;//挂号科室：

3、获取选择控件(Spinner)

consultation_et_section = (Spinner) findViewById(R.id.consultation_et_section);

4、获取JSON数据和绑定数据，可以参考前一篇文章（http://blog.csdn.net/qq_39189632/article/details/78204116）
(1)、创建自定义参数

List<String> listMemDoctorData = null;

(2)、获取数据和绑定数据

/**
 * 获取JSON医生信息数据
 */
public void findDoctorData(int sectionId){
    AsyncHttpClient client = new AsyncHttpClient();
    client.get(AbAppConfig.DATA_URL + "appGVConsultation/findDoctorData?sectionId="+sectionId, null, new AsyncHttpResponseHandler() {
        @Override
        public void onSuccess(int statusCode, Header[] headers, byte[] responseBody) {
            try {
                JSONObject object =  new JSONObject(new String(responseBody));//获取json数据
                JSONArray jsonArray = object.getJSONArray("obj");//获取数据集名称为obj的数据
                Log.d("jsonArray数据输出：", String.valueOf(jsonArray));
                listMemDoctor = new ArrayList<>();
                for (int i = 0; i < jsonArray.length();i++) {
                    MemDoctor doctor = MemDoctor.doctorData(jsonArray.getJSONObject(i));//把数据存在novels集合中
                    if (doctor != null){
                        listMemDoctor.add(doctor);
                    }
                }

                if (jsonArray.length() > 0){
                    listMemDoctorData = new ArrayList<>();
                    doctor_id = listMemDoctor.get(0).id;//获取第一个医生的ID
                    for (int i = 0; i < listMemDoctor.size(); i++){
                        MemDoctor section = listMemDoctor.get(i);
                        listMemDoctorData.add(section.doctorName);
                    }

                    //建立 Adapter并且绑定数据源
                    ArrayAdapter<String> arrayAdapter = new ArrayAdapter<>(GV_Consultation.this, android.R.layout.simple_spinner_item, listMemDoctorData);
                    //设置样式
                    arrayAdapter.setDropDownViewResource(android.R.layout.simple_list_item_single_choice);
                    //绑定 Adapter到控件
                    consultation_et_doctor.setAdapter(arrayAdapter);
                }else {
                    consultation_et_doctor.setAdapter(null);
                    doctor_id = 0;
                    Toast.makeText(GV_Consultation.this, "该科室没有医生信息数据", Toast.LENGTH_SHORT).show();
                }

            } catch (JSONException e) {
                Toast.makeText(GV_Consultation.this, "数据请求失败，请稍后重试", Toast.LENGTH_SHORT).show();
            }
        }

        @Override
        public void onFailure(int statusCode, Header[] headers, byte[] responseBody, Throwable error) {
            //请求失败的回调处理
            Toast.makeText(GV_Consultation.this, "请链接网络，稍后重试", Toast.LENGTH_SHORT).show();
        }
    });
}

5、创建点击事件

//医生选择点击事件
consultation_et_doctor.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
    @Override
    public void onItemSelected(AdapterView<?> parent, View view, int pos, long id) {
        doctor_id = listMemDoctor.get((int) id).id;//获取选择医生的ID
    }
    @Override
    public void onNothingSelected(AdapterView<?> parent) {
    }
});