protected internal override void dispatchDraw(android.graphics.Canvas canvas)
{
base.dispatchDraw(canvas);
// Do nothing if there are no tabs.
if (getTabCount() == 0)
{
return;
}
// If the user specified a custom view for the tab indicators, then
// do not draw the bottom strips.
if (!mDrawBottomStrips)
{
// Skip drawing the bottom strips.
return;
}
android.view.View selectedChild = getChildTabViewAt(mSelectedTab);
android.graphics.drawable.Drawable leftStrip = mLeftStrip;
android.graphics.drawable.Drawable rightStrip = mRightStrip;
leftStrip.setState(selectedChild.getDrawableState());
rightStrip.setState(selectedChild.getDrawableState());
if (mStripMoved)
{
android.graphics.Rect bounds = mBounds;
bounds.left = selectedChild.getLeft();
bounds.right = selectedChild.getRight();
int myHeight = getHeight();
leftStrip.setBounds(System.Math.Min(0, bounds.left - leftStrip.getIntrinsicWidth(
)), myHeight - leftStrip.getIntrinsicHeight(), bounds.left, myHeight);
rightStrip.setBounds(bounds.right, myHeight - rightStrip.getIntrinsicHeight(), System.Math.Max
(getWidth(), bounds.right + rightStrip.getIntrinsicWidth()), myHeight);
mStripMoved = false;
}
leftStrip.draw(canvas);
rightStrip.draw(canvas);
}
protected internal override void onLayout(bool changed, int l, int t, int r, int
b)
{
base.onLayout(changed, l, t, r, b);
bool hasTabs = mTabContainer != null && mTabContainer.getVisibility() != GONE;
if (mTabContainer != null && mTabContainer.getVisibility() != GONE)
{
int containerHeight = getMeasuredHeight();
int tabHeight = mTabContainer.getMeasuredHeight();
if ((mActionBarView.getDisplayOptions() & android.app.ActionBar.DISPLAY_SHOW_HOME
) == 0)
{
// Not showing home, put tabs on top.
int count = getChildCount();
{
for (int i = 0; i < count; i++)
{
android.view.View child = getChildAt(i);
if (child == mTabContainer)
{
continue;
}
if (!mActionBarView.isCollapsed())
{
child.offsetTopAndBottom(tabHeight);
}
}
}
mTabContainer.layout(l, 0, r, tabHeight);
}
else
{
mTabContainer.layout(l, containerHeight - tabHeight, r, containerHeight);
}
}
bool needsInvalidate = false;
if (mIsSplit)
{
if (mSplitBackground != null)
{
mSplitBackground.setBounds(0, 0, getMeasuredWidth(), getMeasuredHeight());
needsInvalidate = true;
}
}
else
{
if (mBackground != null)
{
mBackground.setBounds(mActionBarView.getLeft(), mActionBarView.getTop(), mActionBarView
.getRight(), mActionBarView.getBottom());
needsInvalidate = true;
}
if ((mIsStacked = hasTabs && mStackedBackground != null))
{
mStackedBackground.setBounds(mTabContainer.getLeft(), mTabContainer.getTop(), mTabContainer
.getRight(), mTabContainer.getBottom());
needsInvalidate = true;
}
}
if (needsInvalidate)
{
invalidate();
}
}
