public virtual SimpleListDialogBuilder SetChoiceMode(AbsListViewChoiceMode choiceMode)
{
this.mode = choiceMode;
return(this);
}
protected override Builder Build(Builder builder)
{
string[] items = Items;
string title = Title;
if (!TextUtils.IsEmpty(title))
{
builder.SetTitle(title);
}
if (!TextUtils.IsEmpty(NegativeButtonText))
{
builder.SetNegativeButton(NegativeButtonText, (sender, e) =>
{
foreach (ISimpleDialogCancelListener listener in CancelListeners)
{
listener.OnCancelled(mRequestCode);
}
Dismiss();
});
}
//confirm button makes no sense when CHOICE_MODE_NONE
if (Mode != AbsListViewChoiceMode.None)
{
string positiveButton = PositiveButtonText;
if (TextUtils.IsEmpty(PositiveButtonText))
{
//we always need confirm button when CHOICE_MODE_SINGLE or CHOICE_MODE_MULTIPLE
positiveButton = GetString(Android.Resource.String.Ok);
}
switch (Mode)
{
case AbsListViewChoiceMode.Multiple:
builder.SetPositiveButton(positiveButton, (sender, e) =>
{
// prepare multiple results
int[] checkedPositions = AsIntArray(CheckedItems);
items = Items;
string[] checkedValues = new string[checkedPositions.Length];
int i = 0;
foreach (int checkedPosition in checkedPositions)
{
if (checkedPosition >= 0 && checkedPosition < items.Length)
{
checkedValues[i++] = items[checkedPosition];
}
}
foreach (IMultiChoiceListDialogListener listener in MutlipleDialogListeners)
{
listener.OnListItemsSelected(checkedValues, checkedPositions, mRequestCode);
}
Dismiss();
});
break;
case AbsListViewChoiceMode.Single:
builder.SetPositiveButton(positiveButton, (sender, e) =>
{
// prepare single result
int selectedPosition = -1;
int[] checkedPositions = AsIntArray(CheckedItems);
items = Items;
foreach (int i in checkedPositions)
{
if (i >= 0 && i < items.Length)
{
//1st valid value
selectedPosition = i;
break;
}
}
// either item is selected or dialog is cancelled
if (selectedPosition != -1)
{
foreach (IListDialogListener listener in SingleDialogListeners)
{
listener.OnListItemSelected(items[selectedPosition], selectedPosition, mRequestCode);
}
}
else
{
foreach (ISimpleDialogCancelListener listener in CancelListeners)
{
listener.OnCancelled(mRequestCode);
}
}
Dismiss();
});
break;
}
}
// prepare list and its item click listener
items = Items;
if (items != null && items.Length > 0)
{
AbsListViewChoiceMode mode = Mode;
switch (mode)
{
case AbsListViewChoiceMode.Multiple:
BuildMultiChoice(builder);
break;
case AbsListViewChoiceMode.Single:
BuildSingleChoice(builder);
break;
case AbsListViewChoiceMode.None:
BuildNormalChoice(builder);
break;
}
}
return(builder);
}
