• 專案原始碼：包含日期、省市縣兩種選擇器[資源積分：0分] ，APK安裝包下載，沒有CSDN賬戶的的點此下載原始碼
  
• fastjson：自己複製部落格裡原始碼的小夥伴，注意匯入fastjson框架哦！阿里巴巴出品的最快json解析框架
• 日期選擇器：效果圖中的選擇年月日的日期選擇器
• 任何問題，歡迎評論；原始碼下載不成功的留下郵箱；文章我還在維護，持續優化，有問題的小夥伴積極評論哈。

先上效果圖： 樣式可以修改xml檔案

• 省市縣三級聯動，選地址經常用到
• 原生NumberPicker控制元件實現滑動，json資料解析使用fastjson框架
• 使用簡單：傳入一個String[]陣列，設定選擇器的預設值，點選確認按鈕，回撥介面返回String[]陣列，為重新選擇的省市縣
• 隨意修改：效果圖中字型顏色佈局等都可以修改，以保證與你的專案風格統一

把我原始碼裡寫好的java檔案和xml檔案拷到你的專案中，呼叫就這麼簡單：

1. ChooseCityUtil cityUtil = new ChooseCityUtil();  
2.        String[] oldCityArray = {"廣東","深圳","福田"};  
3.        cityUtil.createDialog(this, oldCityArray, new ChooseCityInterface() {  
4.            @Override
5.            publicvoid sure(String[] newCityArray) {  
6.                //oldCityArray為傳入的預設值 newCityArray為返回的結果
7.                tvCity.setText(newCityArray[0] + "-" + newCityArray[1] + "-" + newCityArray[2]);  
8.            }  
9.        });  

接下來看是如何實現的

佈局檔案activity_main.xml

1. <?xml version="1.0" encoding="utf-8"?>  
2. <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
3.     xmlns:tools="http://schemas.android.com/tools"
4.     android:layout_width="match_parent"
5.     android:layout_height="match_parent"
6.     android:fitsSystemWindows="true"
7.     android:orientation="vertical"
8.     tools:context=".MainActivity">  
9.     <TextView  
10.         android:layout_width="match_parent"
11.         android:layout_height="56dp"
12.         android:background="@color/mainColor"
13.         android:gravity="center"
14.         android:text="選擇器 Picker"
15.         android:textColor="@color/white"
16.         android:textSize="20sp" />  
17.     <RelativeLayout  
18.         android:layout_width="match_parent"
19.         android:layout_height="50dp"
20.         android:orientation="horizontal">  
21.         <TextView  
22.             android:layout_width="wrap_content"
23.             android:layout_height="match_parent"
24.             android:gravity="center"
25.             android:text="城市設定:"
26.             android:textColor="#656565"
27.             android:textSize="18sp" />  
28.         <TextView  
29.             android:id="@+id/tvCity"
30.             android:layout_width="wrap_content"
31.             android:layout_height="match_parent"
32.             android:layout_alignParentRight="true"
33.             android:clickable="true"
34.             android:gravity="center"
35.             android:onClick="chooseCityDialog"
36.             android:text="廣東-深圳-福田"
37.             android:textColor="#656565"
38.             android:textSize="18sp" />  
39.     </RelativeLayout>  
40.     <View  
41.         android:layout_width="match_parent"
42.         android:layout_height="0.1dp"
43.         android:background="@color/gray" />  
44. </LinearLayout>  

1. <?xml version="1.0" encoding="utf-8"?>  
2. <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
3.     android:layout_width="match_parent"
4.     android:layout_height="match_parent"
5.     android:background="#00000000"
6.     android:gravity="center"
7.     android:orientation="vertical">  
8.     <LinearLayout  
9.         android:layout_width="260dp"
10.         android:layout_height="wrap_content"
11.         android:orientation="vertical"
12.         android:background="#FFF">  
13.         <LinearLayout  
14.             android:layout_width="match_parent"
15.             android:layout_height="wrap_content"
16.             android:orientation="horizontal">  
17.             <NumberPicker  
18.                 android:id="@+id/npProvince"
19.                 android:layout_width="0dp"
20.                 android:layout_weight="1"
21.                 android:layout_height="wrap_content"/>  
22.             <TextView  
23.                 android:layout_width="wrap_content"
24.                 android:layout_marginLeft="3dp"
25.                 android:layout_marginRight="3dp"
26.                 android:layout_height="match_parent"
27.                 android:gravity="center"
28.                 android:text="省"
29.                 android:textColor="#656565"
30.                 android:textSize="18sp" />  
31.             <NumberPicker  
32.                 android:id="@+id/npCity"
33.                 android:layout_width="0dp"
34.                 android:layout_weight="1"
35.                 android:layout_height="wrap_content" />  
36.             <TextView  
37.                 android:layout_width="wrap_content"
38.                 android:layout_marginLeft="3dp"
39.                 android:layout_marginRight="3dp"
40.                 android:layout_height="match_parent"
41.                 android:gravity="center"
42.                 android:text="市"
43.                 android:textColor="#656565"
44.                 android:textSize="18sp" />  
45.             <NumberPicker  
46.                 android:id="@+id/npCounty"
47.                 android:layout_width="0dp"
48.                 android:layout_weight="1"
49.                 android:layout_height="wrap_content" />  
50.             <TextView  
51.                 android:layout_width="wrap_content"
52.                 android:layout_height="match_parent"
53.                 android:gravity="center"
54.                 android:text=""
55.                 android:textColor="#656565"
56.                 android:textSize="18sp" />  
57.         </LinearLayout>  
58.         <View  
59.             android:layout_width="match_parent"
60.             android:layout_height="0.1dp"
61.             android:background="#EEEEEE"/>  
62.         <LinearLayout  
63.             android:layout_width="match_parent"
64.             android:layout_height="50dp"
65.             android:orientation="horizontal">  
66.             <TextView  
67.                 android:id="@+id/tvCancel"
68.                 android:layout_width="0dp"
69.                 android:layout_height="match_parent"
70.                 android:layout_weight="1"
71.                 android:gravity="center"
72.                 android:text="取消"
73.                 android:textColor="#656565"
74.                 android:textSize="18sp" />  
75.             <TextView  
76.                 android:id="@+id/tvSure"
77.                 android:layout_width="0dp"
78.                 android:layout_height="match_parent"
79.                 android:layout_weight="1"
80.                 android:gravity="center"
81.                 android:text="確定"
82.                 android:textColor="#656565"
83.                 android:textSize="18sp" />  
84.         </LinearLayout>  
85.     </LinearLayout>  
86. </LinearLayout>  

介面類ChooseCityInterface.java

1. publicinterface ChooseCityInterface {  
2.     publicvoid sure(String[] newCityArray);  
3. }  

json對應實體類CityBean.java

1. publicclass CityBean {  
2.     private String note;  
3.     private List<Data> data;  
4.     public String getNote() {  
5.         return note;  
6.     }  
7.     publicvoid setNote(String note) {  
8.         this.note = note;  
9.     }  
10.     public List<Data> getData() {  
11.         return data;  
12.     }  
13.     publicvoid setData(List<Data> data) {  
14.         this.data = data;  
15.     }  
16.     publicstaticclass Data {  
17.         private String name;  
18.         private List<City> city;  
19.         public String getName() {  
20.             return name;  
21.         }  
22.         publicvoid setName(String name) {  
23.             this.name = name;  
24.         }  
25.         public List<City> getCity() {  
26.             return city;  
27.         }  
28.         publicvoid setCity(List<City> city) {  
29.             this.city = city;  
30.         }  
31.         publicstaticclass City {  
32.             private String name;  
33.             private List<String> county;  
34.             public String getName() {  
35.                 return name;  
36.             }  
37.             publicvoid setName(String name) {  
38.                 this.name = name;  
39.             }  
40.             public List<String> getCounty() {  
41.                 return county;  
42.             }  
43.             publicvoid setCounty(List<String> county) {  
44.                 this.county = county;  
45.             }  
46.         }  
47.     }  
48. }  

1. publicclass ChooseCityUtil implements View.OnClickListener, NumberPicker.OnValueChangeListener {  
2.     Context context;  
3.     AlertDialog dialog;  
4.     ChooseCityInterface cityInterface;  
5.     NumberPicker npProvince, npCity, npCounty;  
6.     TextView tvCancel, tvSure;  
7.     String[] newCityArray = new String[3];  
8.     CityBean bean;  
9.     publicvoid createDialog(Context context, String[] oldCityArray, ChooseCityInterface cityInterface) {  
10.         this.context = context;  
11.         this.cityInterface = cityInterface;  
12.         bean = JSON.parseObject(CityData.getJson(), CityBean.class);  
13.         newCityArray[0] = oldCityArray[0];  
14.         newCityArray[1] = oldCityArray[1];  
15.         newCityArray[2] = oldCityArray[2];  
16.         dialog = new AlertDialog.Builder(context).create();  
17.         dialog.show();  
18.         Window window = dialog.getWindow();  
19.         window.setContentView(R.layout.dialog_choose_city);  
20.         //初始化控制元件
21.         tvCancel = (TextView) window.findViewById(R.id.tvCancel);  
22.         tvSure = (TextView) window.findViewById(R.id.tvSure);  
23.         tvCancel.setOnClickListener(this);  
24.         tvSure.setOnClickListener(this);  
25.         npProvince = (NumberPicker) window.findViewById(R.id.npProvince);  
26.         npCity = (NumberPicker) window.findViewById(R.id.npCity);  
27.         npCounty = (NumberPicker) window.findViewById(R.id.npCounty);  
28.         setNomal();  
29.         //省：設定選擇器最小值、最大值、初始值
30.         String[] provinceArray = new String[bean.getData().size()];//初始化省陣列
31.         for (int i = 0; i < provinceArray.length; i++) {//省陣列填充資料
32.             provinceArray[i] = bean.getData().get(i).getName();  
33.         }  
34.         npProvince.setDisplayedValues(provinceArray);//設定選擇器資料、預設值
35.         npProvince.setMinValue(0);  
36.         npProvince.setMaxValue(provinceArray.length - 1);  
37.         for (int i = 0; i < provinceArray.length; i++) {  
38.             if (provinceArray[i].equals(newCityArray[0])) {  
39.                 npProvince.setValue(i);  
40.                 changeCity(i);//聯動市資料
41.             }  
42.         }  
43.     }  
44.     //根據省,聯動市資料
45.     privatevoid changeCity(int provinceTag) {  
46.         List<CityBean.Data.City> cityList = bean.getData().get(provinceTag).getCity();  
47.         String[] cityArray = new String[cityList.size()];  
48.         for (int i = 0; i < cityArray.length; i++) {  
49.             cityArray[i] = cityList.get(i).getName();  
50.         }  
51.         try {  
52.             npCity.setMinValue(0);  
53.             npCity.setMaxValue(cityArray.length - 1);  
54.             npCity.setWrapSelectorWheel(false);  
55.             npCity.setDisplayedValues(cityArray);//設定選擇器資料、預設值
56.         } catch (Exception e) {  
57.             npCity.setDisplayedValues(cityArray);//設定選擇器資料、預設值
58.             npCity.setMinValue(0);  
59.             npCity.setMaxValue(cityArray.length - 1);  
60.             npCity.setWrapSelectorWheel(false);  
61.         }  
62.         for (int i = 0; i < cityArray.length; i++) {  
63.             if (cityArray[i].equals(newCityArray[1])) {  
64.                 npCity.setValue(i);  
65.                 changeCounty(provinceTag, i);//聯動縣資料
66.                 return;  
67.             }  
68.         }  
69.         npCity.setValue(0);  
70.         changeCounty(provinceTag, npCity.getValue());//聯動縣資料
71.     }  
72.     //根據市,聯動縣資料
73.     privatevoid changeCounty(int provinceTag, int cityTag) {  
74.         List<String> countyList = bean.getData().get(provinceTag).getCity().get(cityTag).getCounty();  
75.         String[] countyArray = new String[countyList.size()];  
76.         for (int i = 0; i < countyArray.length; i++) {  
77.             countyArray[i] = countyList.get(i).toString();  
78.         }  
79.         try {  
80.             npCounty.setMinValue(0);  
81.             npCounty.setMaxValue(countyArray.length - 1);  
82.             npCounty.setWrapSelectorWheel(false);  
83.             npCounty.setDisplayedValues(countyArray);//設定選擇器資料、預設值
84.         } catch (Exception e) {  
85.             npCounty.setDisplayedValues(countyArray);//設定選擇器資料、預設值
86.             npCounty.setMinValue(0);  
87.             npCounty.setMaxValue(countyArray.length - 1);  
88.             npCounty.setWrapSelectorWheel(false);  
89.         }  
90.         for (int i = 0; i < countyArray.length; i++) {  
91.             if (countyArray[i].equals(newCityArray[2])) {  
92.                 npCounty.setValue(i);  
93.                 return;  
94.             }  
95.         }  
96.         npCounty.setValue(0);  
97.     }  
98.     //設定NumberPicker的分割線透明、字型顏色、設定監聽
99.     privatevoid setNomal() {  
100.         //設定監聽
101.         npProvince.setOnValueChangedListener(this);  
102.         npCity.setOnValueChangedListener(this);  
103.         npCounty.setOnValueChangedListener(this);  
104.         //去除分割線
105.         setNumberPickerDividerColor(npProvince);  
106.         setNumberPickerDividerColor(npCity);  
107.         setNumberPickerDividerColor(npCounty);  
108.         //設定字型顏色
109.         setNumberPickerTextColor(npProvince, context.getResources().getColor(R.color.mainColor));  
110.         setNumberPickerTextColor(npCity, context.getResources().getColor(R.color.mainColor));  
111.         setNumberPickerTextColor(npCounty, context.getResources().getColor(R.color.mainColor));  
112.     }  
113.     @Override
114.     publicvoid onClick(View v) {  
115.         switch (v.getId()) {  
116.             case R.id.tvCancel:  
117.                 dialog.dismiss();  
118.                 break;  
119.             case R.id.tvSure:  
120.                 dialog.dismiss();  
121.                 cityInterface.sure(newCityArray);  
122.                 break;  
123.         }  
124.     }  
125.     //選擇器選擇值監聽
126.     @Override
127.     publicvoid onValueChange(NumberPicker picker, int oldVal, int newVal) {  
128.         switch (picker.getId()) {  
129.             case R.id.npProvince:  
130.                 List<CityBean.Data> dataList = bean.getData();  
131.                 newCityArray[0] = dataList.get(npProvince.getValue()).getName();  
132.                 changeCity(npProvince.getValue());  
133.                 newCityArray[1] = dataList.get(npProvince.getValue()).getCity().get(0).getName();  
134.                 newCityArray[2] = dataList.get(npProvince.getValue()).getCity().get(0).getCounty().get(0).toString();  
135.                 break;  
136.             case R.id.npCity:  
137.                 List<CityBean.Data.City> cityList = bean.getData().get(npProvince.getValue()).getCity();  
138.                 newCityArray[1] = cityList.get(npCity.getValue()).getName();  
139.                 changeCounty(npProvince.getValue(), npCity.getValue());  
140.                 newCityArray[2] = cityList.get(npCity.getValue()).getCounty().get(0).toString();  
141.                 break;  
142.             case R.id.npCounty:  
143.                 List<String> countyList = bean.getData().get(npProvince.getValue()).getCity().get(npCity.getValue()).getCounty();  
144.                 newCityArray[2] = countyList.get(npCounty.getValue()).toString();  
145.                 break;  
146.         }  
147.     }  
148.     //設定分割線顏色
149.     privatevoid setNumberPickerDividerColor(NumberPicker numberPicker) {  
150.         NumberPicker picker = numberPicker;  
151.         Field[] pickerFields = NumberPicker.class.getDeclaredFields();  
152.         for (Field pf : pickerFields) {  
153.             if (pf.getName().equals("mSelectionDivider")) {  
154.                 pf.setAccessible(true);  
155.                 try {  
156.                     //設定分割線的顏色值
157.                     pf.set(picker, new ColorDrawable(context.getResources().getColor(R.color.transparent)));// pf.set(picker, new Div)
158.                 } catch (IllegalArgumentException e) {  
159.                     e.printStackTrace();  
160.                 } catch (Resources.NotFoundException e) {  
161.                     e.printStackTrace();  
162.                 } catch (IllegalAccessException e) {  
163.                     e.printStackTrace();  
164.                 }  
165.                 break;  
166.             }  
167.         }  
168.     }  
169.     //設定選擇器字型顏色
170.     publicstaticboolean setNumberPickerTextColor(NumberPicker numberPicker, int color) {  
171.         boolean result = false;  
172.         finalint count = numberPicker.getChildCount();  
173.         for (int i = 0; i < count; i++) {  
174.             View child = numberPicker.getChildAt(i);  
175.             if (child instanceof EditText) {  
176.                 try {  
177.                     Field selectorWheelPaintField = numberPicker.getClass()  
178.                             .getDeclaredField("mSelectorWheelPaint");  
179.                     selectorWheelPaintField.setAccessible(true);  
180.                     ((Paint) selectorWheelPaintField.get(numberPicker)).setColor(color);  
181.                     ((EditText) child).setTextColor(color);  
182.                     numberPicker.invalidate();  
183.                     result = true;  
184.                 } catch (NoSuchFieldException e) {  
185.                     e.printStackTrace();  
186.                 } catch (IllegalAccessException e) {  
187.                     e.printStackTrace();  
188.                 } catch (IllegalArgumentException e) {  
189.                     e.printStackTrace();  
190.                 }  
191.             }  
192.         }  
193.         return result;  
194.     }  
195. }  

1. publicclass MainActivity extends Activity {  
2.     TextView tvCity;//城市
3.     @Override
4.     protectedvoid onCreate(Bundle savedInstanceState) {  
5.         super.onCreate(savedInstanceState);  
6.         setContentView(R.layout.activity_main);  
7.         initView();  
8.     }  
9.     //初始化控制元件
10.     privatevoid initView() {  
11.         tvCity = (TextView) findViewById(R.id.tvCity);  
12.     }  
13.     //Choose Date 選擇省市縣
14.     publicvoid chooseCityDialog(View view) {  
15.         final ChooseCityUtil cityUtil = new ChooseCityUtil();  
16.         String[] oldCityArray = tvCity.getText().toString().split("-");//將TextView上的文字分割成陣列 當做預設值
17.         cityUtil.createDialog(this, oldCityArray, new ChooseCityInterface() {  
18.             @Override
19.             publicvoid sure(String[] newCityArray) {  
20.                 //oldCityArray為傳入的預設值 newCityArray為返回的結果
21.                 tvCity.setText(newCityArray[0] + "-" + newCityArray[1] + "-" + newCityArray[2]);  
22.             }  
23.         });  
24.     }  
25. }  

顏色 colors.xml

1. <?xml version="1.0" encoding="utf-8"?>  
2. <resources>  
3.     <color name="mainColor">#1BC47A</color>  
4.     <color name="gray">#EEEEEE</color>  
5.     <color name="black">#5E5E5E</color>  
6.     <color name="white">#FFF</color>  
7.     <color name="transparent">#00000000</color>  
8. </resources>  

1. publicclass CityData {  
2.     publicstatic String getJson() {  
3.         return"轉譯符看著太亂，把下面的json資料複製到這裡，替換掉！";  
4.     }  
5. }  

1. {  
2.   "note": "全國省市縣資料",  
3.   "data": [  
4.     {  
5.       "name": "北京",  
6.       "city": [  
7.         {  
8.           "name": "北京",  
9.           "county": [  
10.             "昌平",  
11.             "朝陽",  
12.             "大興",  
13.             "房山",  
14.             "豐臺",  
15.             "海淀",  
16.             "懷柔",  
17.             "門頭溝",  
18.             "密雲",  
19.             "平谷",  
20.             "石景山",  
21.             "順義",  
22.             "通州",  
23.             "宣武",  
24.             "延慶"
25.           ]  
26.         }  
27.       ]  
28.     },  
29.     {  
30.       "name": "安徽",  
31.       "city": [  
32.         {  
33.           "name": "安慶",  
34.           "county": [  
35.             "大觀",  
36.             "懷寧",  
37.             "潛山",  
38.             "宿松",  
39.             "太湖",  
40.             "桐城",  
41.             "望江",  
42.             "宜秀",  
43.             "迎江",  
44.             "嶽西",  
45.             "樅陽"
46.           ]  
47.         },  
48.         {  
49.           "name": "蚌埠",  
50.           "county": [  
51.             "蚌山",  
52.             "固鎮",  
53.             "淮上",  
54.             "懷遠",  
55.             "龍子湖",  
56.             "五河",  
57.             "禹會"
58.           ]  
59.         },  
60.         {  
61.           "name": "亳州",  
62.           "county": [  
63.             "渦陽",  
64.             "利辛",  
65.             "蒙城",  
66.             "譙城"
67.           ]  
68.         },  
69.         {  
70.           "name": "巢湖",  
71.           "county": [  
72.             "含山",  
73.             "和縣",  
74.             "居巢",  
75.             "廬江",  
76.             "無為"
77.           ]  
78.         },  
79.         {  
80.           "name": "池州",  
81.           "county": [  
82.             "東至",  
83.             "貴池",  
84.             "青陽",  
85.             "石臺"
86.           ]  
87.         },  
88.         {  
89.           "name": "滁州",  
90.           "county": [  
91.             "定遠",  
92.             "鳳陽",  
93.             "來安",  
94.             "琅玡",  
95.             "明光",  
96.             "南譙",  
97.             "全椒",  
98.             "天長"
99.           ]  
100.         },  
101.         {  
102.           "name": "阜陽",  
103.           "county": [  
104.             "阜南",  
105.             "界首",  
106.             "臨泉",  
107.             "太和",  
108.             "穎東",  
109.             "穎泉",  
110.             "潁上",  
111.             "穎州"
112.           ]  
113.         },  
114.         {  
115.           "name": "合肥",  
116.           "county": [  
117.             "包河",  
118.             "長豐",  
119.             "肥東",  
120.             "肥西",  
121.             "廬陽",  
122.             "蜀山",  
123.             "瑤海"
124.           ]  
125.         },  
126.         {  
127.           "name": "淮北",  
128.           "county": [  
129.             "杜集",  
130.             "烈山",  
131.             "濉溪",  
132.             "相山"
133.           ]  
134.         },  
135.         {  
136.           "name": "淮南",  
137.           "county": [  
138.             "八公山",  
139.             "大通",  
140.             "鳳台",  
141.             "潘集",  
142.             "田家庵",  <