我有一个从 ArrayAdapter 扩展的适配器，以便用一组对象（城市）填充一个 Spinner。所有对象和适配器都可以正常工作，至少看起来是这样。问题是当我显示所有城市集合时，它显示为 UP 而不是 DOWN。
有谁知道会发生什么？
这是我的适配器
public class AdapterSpinnerListCities extends ArrayAdapter<City> {
// My context
private Context context;
// Values for the spinner (City)
private List<City> listLocationsSpinner = UpdatedStatusApplication.getListLocations();
Typeface tf = null;
public AdapterSpinnerListCities (Context context, int textViewResourceId, List<City> listLocationsAPP) {
super(context, textViewResourceId, listLocationsAPP);
this.context = context;
this.listLocationsSpinner = listLocationsAPP;
tf = CustomFontsLoader.getTypeface(this.context,CustomFontsLoader.FONT_CHALKBOARD_1);
}
public int getCount(){
return listLocationsSpinner.size();
}
public City getItem(int position){
return listLocationsSpinner.get(position);
}
public long getItemId(int position){
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = (LayoutInflater)this.context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View item = convertView;
item = inflater.inflate(R.layout.list_item_city, null);
TextView tvCity = (TextView)item.findViewById(R.id.tv_item_city);
tvCity.setText(listLocationsSpinner.get(position).getCityName().toUpperCase());
tvCity.setTypeface(tf);
return(item);
}
// And here is when the "chooser" is popped up
// Normally is the same view, but you can customize it if you want
@Override
public View getDropDownView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = (LayoutInflater)this.context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View item = convertView;
if (listLocationsSpinner.get(position).getCitySubcity() == TagManager.TAG_IS_NOT_SUBCITY){
item = inflater.inflate(R.layout.list_item_city, null);
TextView tvCity = (TextView)item.findViewById(R.id.tv_item_city);
tvCity.setText(listLocationsSpinner.get(position).getCityName().toUpperCase());
tvCity.setTypeface(tf);
}
else{
item = inflater.inflate(R.layout.list_item_subcity, null);
TextView tvSubCity = (TextView)item.findViewById(R.id.tv_item_subcity);
tvSubCity.setText(listLocationsSpinner.get(position).getCityName());
tvSubCity.setTypeface(tf);
}
return(item);
}
我在布局中的 Spinner（它在一个 RelativeLayout 中）
<LinearLayout
android:id="@+id/lyt_locationSpinner"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/LinearLayoutLogo"
android:layout_below="@+id/lyt_drink_food_deals"
android:orientation="horizontal"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:paddingTop="5dp"
>
<Spinner android:id="@+id/cmb_location"
style="@style/style_btn_request"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:spinnerMode="dropdown"
/>
</LinearLayout>
我的活动
private Spinner mySpinner;
private AdapterSpinnerListCities adapter;
List<City> listDeployedLocations = new ArrayList<City>();
.....
.....
adapter = new AdapterSpinnerListCities (this, android.R.layout.simple_spinner_dropdown_item, listDeployedLocations);
mySpinner = (Spinner) findViewById(R.id.cmb_location);
mySpinner.setAdapter(adapter); // Set the custom adapter to the spinner
mySpinner.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected (AdapterView<?> parentView, View selectedItemView, int position, long id) {
citySelected = listDeployedLocations.get(position);
System.out.println("Spinner value...."+ citySelected.getCityID()+"-"+citySelected.getCityName());
}
@Override
public void onNothingSelected(AdapterView<?> parentView) {
// code here
}
});
