效果顯示：

1、頁面xml程式碼（專案的程式碼，直接複製會有錯，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="掛號科室："
    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建立自定義引數

Spinner consultation_et_section;//掛號科室：

3、獲取選擇控制元件(Spinner)

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

List<String> listMemDoctorData = null;

(2)、獲取資料和繫結資料

/**
 * 獲取JSON醫生資訊資料
 */
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));//獲取json資料
                JSONArray jsonArray = object.getJSONArray("obj");//獲取資料集名稱為obj的資料
                Log.d("jsonArray資料輸出：", String.valueOf(jsonArray));
                listMemDoctor = new ArrayList<>();
                for (int i = 0; i < jsonArray.length();i++) {
                    MemDoctor doctor = MemDoctor.doctorData(jsonArray.getJSONObject(i));//把資料存在novels集合中
                    if (doctor != null){
                        listMemDoctor.add(doctor);
                    }
                }

                if (jsonArray.length() > 0){
                    listMemDoctorData = new ArrayList<>();
                    doctor_id = listMemDoctor.get(0).id;//獲取第一個醫生的ID
                    for (int i = 0; i < listMemDoctor.size(); i++){
                        MemDoctor section = listMemDoctor.get(i);
                        listMemDoctorData.add(section.doctorName);
                    }

                    //建立 Adapter並且繫結資料來源
                    ArrayAdapter<String> arrayAdapter = new ArrayAdapter<>(GV_Consultation.this, android.R.layout.simple_spinner_item, listMemDoctorData);
                    //設定樣式
                    arrayAdapter.setDropDownViewResource(android.R.layout.simple_list_item_single_choice);
                    //繫結 Adapter到控制元件
                    consultation_et_doctor.setAdapter(arrayAdapter);
                }else {
                    consultation_et_doctor.setAdapter(null);
                    doctor_id = 0;
                    Toast.makeText(GV_Consultation.this, "該科室沒有醫生資訊資料", Toast.LENGTH_SHORT).show();
                }

            } catch (JSONException e) {
                Toast.makeText(GV_Consultation.this, "資料請求失敗，請稍後重試", Toast.LENGTH_SHORT).show();
            }
        }

        @Override
        public void onFailure(int statusCode, Header[] headers, byte[] responseBody, Throwable error) {
            //請求失敗的回撥處理
            Toast.makeText(GV_Consultation.this, "請連結網路，稍後重試", Toast.LENGTH_SHORT).show();
        }
    });
}

5、建立點選事件

//醫生選擇點選事件
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;//獲取選擇醫生的ID
    }
    @Override
    public void onNothingSelected(AdapterView<?> parent) {
    }
});