/// <summary>Dismiss the popup window.</summary>
/// <remarks>Dismiss the popup window.</remarks>
public virtual void dismiss()
{
mPopup.dismiss();
removePromptView();
mPopup.setContentView(null);
mDropDownList = null;
mHandler.removeCallbacks(mResizePopupRunnable);
}
/// <summary>
/// <p>Builds the popup window's content and returns the height the popup
/// should have.
/// </summary>
/// <remarks>
/// <p>Builds the popup window's content and returns the height the popup
/// should have. Returns -1 when the content already exists.</p>
/// </remarks>
/// <returns>the content's height or -1 if content already exists</returns>
private int buildDropDown()
{
android.view.ViewGroup dropDownView;
int otherHeights = 0;
if (mDropDownList == null)
{
android.content.Context context = mContext;
mShowDropDownRunnable = new _Runnable_976(this);
mDropDownList = new android.widget.ListPopupWindow.DropDownListView(context, !mModal
);
if (mDropDownListHighlight != null)
{
mDropDownList.setSelector(mDropDownListHighlight);
}
mDropDownList.setAdapter(mAdapter);
mDropDownList.setOnItemClickListener(mItemClickListener);
mDropDownList.setFocusable(true);
mDropDownList.setFocusableInTouchMode(true);
mDropDownList.setOnItemSelectedListener(new _OnItemSelectedListener_994(this));
mDropDownList.setOnScrollListener(mScrollListener);
if (mItemSelectedListener != null)
{
mDropDownList.setOnItemSelectedListener(mItemSelectedListener);
}
dropDownView = mDropDownList;
android.view.View hintView = mPromptView;
if (hintView != null)
{
// if an hint has been specified, we accomodate more space for it and
// add a text view in the drop down menu, at the bottom of the list
android.widget.LinearLayout hintContainer = new android.widget.LinearLayout(context
);
hintContainer.setOrientation(android.widget.LinearLayout.VERTICAL);
android.widget.LinearLayout.LayoutParams hintParams = new android.widget.LinearLayout
.LayoutParams(android.view.ViewGroup.LayoutParams.MATCH_PARENT, 0, 1.0f);
switch (mPromptPosition)
{
case POSITION_PROMPT_BELOW:
{
hintContainer.addView(dropDownView, hintParams);
hintContainer.addView(hintView);
break;
}
case POSITION_PROMPT_ABOVE:
{
hintContainer.addView(hintView);
hintContainer.addView(dropDownView, hintParams);
break;
}
default:
{
android.util.Log.e(TAG, "Invalid hint position " + mPromptPosition);
break;
}
}
// measure the hint's height to find how much more vertical space
// we need to add to the drop down's height
int widthSpec = android.view.View.MeasureSpec.makeMeasureSpec(mDropDownWidth, android.view.View
.MeasureSpec.AT_MOST);
int heightSpec = android.view.View.MeasureSpec.UNSPECIFIED;
hintView.measure(widthSpec, heightSpec);
hintParams = (android.widget.LinearLayout.LayoutParams)hintView.getLayoutParams();
otherHeights = hintView.getMeasuredHeight() + hintParams.topMargin + hintParams.bottomMargin;
dropDownView = hintContainer;
}
mPopup.setContentView(dropDownView);
}
else
{
dropDownView = (android.view.ViewGroup)mPopup.getContentView();
android.view.View view = mPromptView;
if (view != null)
{
android.widget.LinearLayout.LayoutParams hintParams = (android.widget.LinearLayout
.LayoutParams)view.getLayoutParams();
otherHeights = view.getMeasuredHeight() + hintParams.topMargin + hintParams.bottomMargin;
}
}
// getMaxAvailableHeight() subtracts the padding, so we put it back
// to get the available height for the whole window
int padding = 0;
android.graphics.drawable.Drawable background = mPopup.getBackground();
if (background != null)
{
background.getPadding(mTempRect);
padding = mTempRect.top + mTempRect.bottom;
// If we don't have an explicit vertical offset, determine one from the window
// background so that content will line up.
if (!mDropDownVerticalOffsetSet)
{
mDropDownVerticalOffset = -mTempRect.top;
}
}
// Max height available on the screen for a popup.
bool ignoreBottomDecorations = mPopup.getInputMethodMode() == android.widget.PopupWindow
.INPUT_METHOD_NOT_NEEDED;
int maxHeight = mPopup.getMaxAvailableHeight(getAnchorView(), mDropDownVerticalOffset
, ignoreBottomDecorations);
if (mDropDownAlwaysVisible || mDropDownHeight == android.view.ViewGroup.LayoutParams
.MATCH_PARENT)
{
return maxHeight + padding;
}
int listContent = mDropDownList.measureHeightOfChildren(android.view.View.MeasureSpec
.UNSPECIFIED, 0, android.widget.ListView.NO_POSITION, maxHeight - otherHeights,
-1);
// add padding only if the list has items in it, that way we don't show
// the popup if it is not needed
if (listContent > 0)
{
otherHeights += padding;
}
return listContent + otherHeights;
}
