, , Spinner Actionbar.
res/menu ( action_share):
<item android:id="@+id/action_share"
android:showAsAction="always"
android:actionLayout="@layout/actionbar_spinner_export" />
res/layout actionbar_spinner_export:
<Spinner xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/sp_export"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/actionbar_item_selector" />
onCreateOptionsMenu ArrayAdapter. #, Xamarin.Android Cross Platform Development. Java :
IMenuItem spinnerExport = menu.FindItem(Resource.Id.action_share);
_sp_export = spinnerExport.ActionView.FindViewById<Spinner>(Resource.Id.sp_export);
_sp_export.Adapter = new ExportAdapter(_parent, Resource.Layout.actionbar_export_row, new List<String>{"Drucken", "Als PDF", "Als Text", "Als Tabelle"});
ExportAdapter getView , ( ). getDropDownView . :
class ExportAdapter : ArrayAdapter
{
private List<String> _objects = null;
private Context _context = null;
public ExportAdapter(Context context, int resourceId, List<String> objects) : base(context, resourceId)
{
_context = context;
_objects = objects;
}
public override View GetView (int position, View convertView, ViewGroup parent)
{
convertView = ((Activity) _context).LayoutInflater.Inflate(Resource.Layout.actionbar_export_row, parent, false);
TextView tv_text = convertView.FindViewById<TextView>(Resource.Id.tv_text);
ImageView iv_image = convertView.FindViewById<ImageView>(Resource.Id.iv_image);
RelativeLayout.LayoutParams lp_iv = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WrapContent, RelativeLayout.LayoutParams.WrapContent);
lp_iv.AddRule(LayoutRules.CenterInParent);
iv_image.LayoutParameters = lp_iv;
iv_image.SetPadding(5,5,5,5);
tv_text.Visibility = ViewStates.Gone;
iv_image.SetImageResource(Resource.Drawable.ic_action_share);
return convertView;
}
public override View GetDropDownView (int position, View convertView, ViewGroup parent)
{
convertView = ((Activity) _context).LayoutInflater.Inflate(Resource.Layout.actionbar_export_row, parent, false);
TextView tv_text= convertView.FindViewById<TextView>(Resource.Id.tv_text);
tv_text.Text = _objects.ElementAt(position);
return convertView;
}
public override int Count {
get {
return _objects.Count();
}
}
public String getItemAtIndex(int position)
{
return _objects.ElementAt(position);
}
}
, Actionbar, actionbar. , .