Android实现省市区三级联动效果Spinner
主要目的是使用Spinner实现省市县的三级联动
一、布局的设计
二、MainActivity
public class MainActivity extends AppCompatActivity {
Spinner s_sheng;
ArrayAdapter adapter_sheng;
ArrayAdapter adapter_shi;
ArrayAdapter adapter_xian;
Spinner s_shi;
Spinner s_xian;
int sheng_postion;
int shi_postion;
String seletced_sheng;
String seletced_shi;
String seletced_xian;
TextView t_v;
String[] arr_sheng={"北京市","天津市","上海市","广东省","河南省","重庆市","河北省","山西省","辽宁省","吉林省","黑龙江省","江苏省","浙江省", "安徽省","福建省",
"江西省","山东省","湖北省","湖南省","海南省","四川省","贵州省","云南省","陕西省", "甘肃省","青海省","台湾省"};
String [][]arr_shi=new String[][] {
{"北京市"},// 北京市
{"天津市"},//天津市
{"上海市"},//上海市
{"广州", "深圳", "韶关", "珠海", "汕头", "佛山", "湛江", "肇庆", "江门", "茂名", "惠州", "梅州",
"汕尾", "河源", "阳江", "清远", "东莞", "中山", "潮州", "揭阳", "云浮"},//广州市
{"郑州市","开封市","洛阳市","平顶山市","许昌市"
},//河南省
};
String[][][]arr_xian= new String [][][]{
{//北京市
{"东城区", "西城区", "崇文区", "宣武区", "朝阳区", "海淀区", "丰台区", "石景山区", "门头沟区",
"房山区", "通州区", "顺义区", "大兴区", "昌平区", "平谷区", "怀柔区", "密云县", "延庆县"}
},
{//深圳
{"和平区", "河东区", "河西区", "南开区", "河北区", "红桥区", "塘沽区", "汉沽区", "大港区", "东丽区"}
},
{//上海
{"长宁区", "静安区", "普陀区", "闸北区", "虹口区"}
},
{//广东
{"海珠区", "荔湾区", "越秀区", "白云区", "萝岗区", "天河区", "黄埔区", "花都区", "从化市", "增城市", "番禺区", "南沙区"}, //广州
{"宝安区", "福田区", "龙岗区", "罗湖区", "南山区", "盐田区"}, //深圳
{"武江区", "浈江区", "曲江区", "乐昌市", "南雄市", "始兴县", "仁化县", "翁源县", "新丰县", "乳源县"},//韶关
{"无"}
},
{//河南
{"中原区","二七区","管城区","金水区","上街区","惠济区","巩义市","荥阳市","新密市","新郑市" ,"登封市","中牟县" },
{"鼓楼区","龙亭区","顺河区","禹王台","金明区", "杞县","通许县", "尉氏县", "开封县" ,"兰考县"},
{"西工区","老城区","瀍河区","涧西区","吉利区","洛龙区","偃师市","孟津县","新安县","栾川县","嵩县","汝阳县", "宜阳县","洛宁县","伊川县"},
{"新华区","卫东区","湛河区","石龙区","舞钢市","汝州市","宝丰县","叶 县","鲁山县","郏县"},
{"魏都区","禹州市","长葛市","许昌县","鄢陵县", "襄城县"}
},
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.layout);
t_v=(TextView) findViewById(R.id.t_v);
s_sheng = (Spinner) findViewById(R.id.sheng);
s_shi = (Spinner) findViewById(R.id.shi);
s_xian = (Spinner) findViewById(R.id.xian);
adapter_sheng = new ArrayAdapter(this, android.R.layout.simple_spinner_dropdown_item, arr_sheng);
adapter_shi = new ArrayAdapter(this, android.R.layout.simple_spinner_dropdown_item, arr_shi[0]);
adapter_xian = new ArrayAdapter(this, android.R.layout.simple_spinner_dropdown_item, arr_xian[0][0]);
s_sheng.setAdapter(adapter_sheng);
s_sheng.setSelection(0);
s_shi.setAdapter(adapter_shi);
s_shi.setSelection(0);
s_xian.setAdapter(adapter_xian);
s_xian.setSelection(0);
s_sheng.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView adapterView, View view, int i, long l) {
sheng_postion=i;
adapter_shi=new ArrayAdapter(MainActivity.this, android.R.layout.simple_spinner_dropdown_item, arr_shi[i]);
s_shi.setAdapter(adapter_shi);
seletced_sheng=arr_sheng[i];
}
@Override
public void onNothingSelected(AdapterView parent) {
}
});
s_shi.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView adapterView, View view, int i, long l) {
shi_postion=i;
adapter_xian=new ArrayAdapter(MainActivity.this, android.R.layout.simple_spinner_dropdown_item, arr_xian[sheng_postion][shi_postion]);
s_xian.setAdapter(adapter_xian);
seletced_shi=arr_shi[sheng_postion][i];
}
@Override
public void onNothingSelected(AdapterView parent) {
}
});
s_xian.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView adapterView, View view, int i, long l) {
seletced_xian=arr_xian[sheng_postion][shi_postion][i];
t_v.setText(seletced_sheng+"-"+seletced_shi+"-"+seletced_xian);
}
@Override
public void onNothingSelected(AdapterView parent) {
}
});
}
} 设计思想：
1.所有的数据暂时保存在数组里，一次定义了3个数组分别为一维二维三位，来存储省市县乡的数据
2.使用Spinner组件实现mvc三层的控制效果
3.包括
ArrayAdapter创建以及Spinner设置装配数据
三、成果演示
四、资源链接
如有需要请参考： Android实现三级联动代码