我爲Spinner編寫了一個代碼,將Android的Spinner綁定到美國國家的數組。但問題是,它顯示了在轉項引用類型的數據,請參見PICAndroid:如何爲Spinner設置DropDown查看資源?
我添加android.R.layout.simple_spinner_dropdown_item
,但不知道該怎麼佈局添加。我查了谷歌很多exemples他們添加simple_spinner_dropdown_item,但我找不到什麼來佈局添加。下面是輸出和代碼。我想在列表中顯示狀態而不是這些垃圾數據。
Spinner spStates = new Spinner(this);
spStates.setLayoutParams(new LayoutParams(screenWidth, LayoutParams.WRAP_CONTENT));
final USAStates states[] = new USAStates[51];
states[0] = new USAStates("Alabama", "AL");
states[1] = new USAStates("Alaska", "AK");
states[2] = new USAStates("Arizona", "AZ");
ArrayAdapter<USAStates> adapter = new ArrayAdapter<USAStates>(this, android.R.layout.simple_spinner_item, states);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spStates.setAdapter(adapter);
spStates.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
USAStates d = states[position];
Toast.makeText(getApplicationContext(), d.getStateAbrivation(), Toast.LENGTH_LONG).show();
}
public void onNothingSelected(AdapterView<?> parent) {
}
});
public class USAStates {
private String _Statename;
private String _StateAbrivation;
public USAStates(String pStatename, String pStateAbrivation) {
Statename(pStatename);
StateAbrivation(pStateAbrivation);
}
public void Statename(String pStatename) {
_Statename = pStatename;
}
public void StateAbrivation(String pStateAbrivation) {
_StateAbrivation = pStateAbrivation;
}
public String getStatename() {
return _Statename;
}
public String getStateAbrivation() {
return _StateAbrivation;
}
}