Spinner sp=(Spinner)findViewById(R.id.spinner1);
sp.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1,int arg2, long arg3) {
String province=arg0.getItemAtPosition(arg2).toString(); //得到省份
ArrayAdapter adapter=null;
Spinner sp2=(Spinner)findViewById(R.id.spinner2);
switch(ProvinceList.valueOf(province)){
case 湖北省:
adapter = ArrayAdapter.createFromResource(
MainActivity.this,
R.array.HB_city_array, //用对应的string-array填充spinner2
android.R.layout.simple_spinner_item );
adapter.setDropDownViewResource(
android.R.layout.simple_spinner_dropdown_item); //设置下拉样式
sp2.setAdapter(adapter); //填充
break;
case 湖南省:
default:
}
然后有两处错误，一处是第二行的参数列表new AdapterView.OnItemSelectedListener()
错误提示The type new AdapterView.OnItemSelectedListener(){} must implement the inherited abstract method AdapterView.OnItemSelectedListener.onNothingSelected(AdapterView<?>)
还有一处是ArrayAdapter adapter；错误提示Duplicate local variable adapter
