Android Studio绑定下拉框数据详解

<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" />

spinner consultation_et_section;//挂号科室：

consultation_et_section = (spinner) findviewbyid(r.id.consultation_et_section);

list<string> listmemdoctordata = null;

/**
 * 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();
  }
 });
}

//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) {
 }
});