///////////////////////////////////////////////////////////////////////////
// Internal Methods
///////////////////////////////////////////////////////////////////////////
private void refreshDrawable()
{
if (WeakReferenceValid)
{
TextView textView = (TextView)mTextViewRef.Get();
textView.SetBackgroundDrawable(BottomNavigationHelper.getBadgeDrawable(this, textView.Context));
}
}
/// <summary>
/// Internal Method to select a tab
/// </summary>
/// <param name="newPosition"> to select a tab after bottom navigation bar is initialised </param>
/// <param name="firstTab"> if firstTab the no ripple animation will be done </param>
/// <param name="callListener"> is listener callbacks enabled for this change </param>
/// <param name="forcedSelection"> if bottom navigation bar forced to select tab (in this case call on selected irrespective of previous state </param>
private void selectTabInternal(int newPosition, bool firstTab, bool callListener, bool forcedSelection)
{
int oldPosition = mSelectedPosition;
if (mSelectedPosition != newPosition)
{
if (mBackgroundStyle == BackgroundStyle.BACKGROUND_STYLE_STATIC)
{
if (mSelectedPosition != -1)
{
mBottomNavigationTabs[mSelectedPosition].unSelect(true, mAnimationDuration);
}
mBottomNavigationTabs[newPosition].Select(true, mAnimationDuration);
}
else if (mBackgroundStyle == BackgroundStyle.BACKGROUND_STYLE_RIPPLE)
{
if (mSelectedPosition != -1)
{
mBottomNavigationTabs[mSelectedPosition].unSelect(false, mAnimationDuration);
}
mBottomNavigationTabs[newPosition].Select(false, mAnimationDuration);
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final BottomNavigationTab clickedView = mBottomNavigationTabs.get(newPosition);
BottomNavigationTab clickedView = mBottomNavigationTabs[newPosition];
if (firstTab)
{
// Running a ripple on the opening app won't be good so on firstTab this won't run.
mContainer.SetBackgroundColor(new Color(clickedView.ActiveColor));
mBackgroundOverlay.Visibility = ViewStates.Gone;
}
else
{
mBackgroundOverlay.Post(() =>
{
// try {
BottomNavigationHelper.setBackgroundWithRipple(clickedView, mContainer, mBackgroundOverlay, clickedView.ActiveColor, mRippleAnimationDuration);
// } catch (Exception e) {
// mContainer.setBackgroundColor(clickedView.getActiveColor());
// mBackgroundOverlay.setVisibility(ViewStates.Gone);
// }
});
}
}
mSelectedPosition = newPosition;
}
ThreadPool.QueueUserWorkItem(o => {
if (callListener)
{
sendListenerCall(oldPosition, newPosition, forcedSelection);
}
});
}
///////////////////////////////////////////////////////////////////////////
// Internal Methods of the class
///////////////////////////////////////////////////////////////////////////
/// <summary>
/// Internal method to setup tabs
/// </summary>
/// <param name="bottomNavigationTab"> Tab item </param>
/// <param name="currentItem"> data structure for tab item </param>
/// <param name="itemWidth"> tab item in-active width </param>
/// <param name="itemActiveWidth"> tab item active width </param>
private void setUpTab(BottomNavigationTab bottomNavigationTab, BottomNavigationItem currentItem, int itemWidth, int itemActiveWidth)
{
bottomNavigationTab.InactiveWidth = itemWidth;
bottomNavigationTab.ActiveWidth = itemActiveWidth;
bottomNavigationTab.Position = mBottomNavigationItems.IndexOf(currentItem);
bottomNavigationTab.SetOnClickListener(new OnClickListenerAnonymousInnerClass(this));
mBottomNavigationTabs.Add(bottomNavigationTab);
BottomNavigationHelper.bindTabWithData(currentItem, bottomNavigationTab, this);
bottomNavigationTab.initialise(mBackgroundStyle == BackgroundStyle.BACKGROUND_STYLE_STATIC);
mTabContainer.AddView(bottomNavigationTab);
}
///////////////////////////////////////////////////////////////////////////
// Initialise Method
///////////////////////////////////////////////////////////////////////////
/// <summary>
/// This method should be called at the end of all customisation method.
/// This method will take all changes in to consideration and redraws tabs.
/// </summary>
public virtual void Initialise()
{
mSelectedPosition = DEFAULT_SELECTED_POSITION;
mBottomNavigationTabs.Clear();
if (mBottomNavigationItems.Count > 0)
{
mTabContainer.RemoveAllViews();
if (mMode == Mode.MODE_DEFAULT)
{
if (mBottomNavigationItems.Count <= MIN_SIZE)
{
mMode = Mode.MODE_FIXED;
}
else
{
mMode = Mode.MODE_SHIFTING;
}
}
if (mBackgroundStyle == BackgroundStyle.BACKGROUND_STYLE_DEFAULT)
{
if (mMode == Mode.MODE_FIXED)
{
mBackgroundStyle = BackgroundStyle.BACKGROUND_STYLE_STATIC;
}
else
{
mBackgroundStyle = BackgroundStyle.BACKGROUND_STYLE_RIPPLE;
}
}
if (mBackgroundStyle == BackgroundStyle.BACKGROUND_STYLE_STATIC)
{
mBackgroundOverlay.Visibility = ViewStates.Gone;
mContainer.SetBackgroundColor(new Color(mBackgroundColor));
}
int screenWidth = Utils.getScreenWidth(Context);
if (mMode == Mode.MODE_FIXED)
{
int[] widths = BottomNavigationHelper.getMeasurementsForFixedMode(Context, screenWidth, mBottomNavigationItems.Count, mScrollable);
int itemWidth = widths[0];
foreach (BottomNavigationItem currentItem in mBottomNavigationItems)
{
FixedBottomNavigationTab bottomNavigationTab = new FixedBottomNavigationTab(Context);
setUpTab(bottomNavigationTab, currentItem, itemWidth, itemWidth);
}
}
else if (mMode == Mode.MODE_SHIFTING)
{
int[] widths = BottomNavigationHelper.getMeasurementsForShiftingMode(Context, screenWidth, mBottomNavigationItems.Count, mScrollable);
int itemWidth = widths[0];
int itemActiveWidth = widths[1];
foreach (BottomNavigationItem currentItem in mBottomNavigationItems)
{
ShiftingBottomNavigationTab bottomNavigationTab = new ShiftingBottomNavigationTab(Context);
setUpTab(bottomNavigationTab, currentItem, itemWidth, itemActiveWidth);
}
}
if (mBottomNavigationTabs.Count > mFirstSelectedPosition)
{
selectTabInternal(mFirstSelectedPosition, true, false, false);
}
else if (mBottomNavigationTabs.Count > 0)
{
selectTabInternal(0, true, false, false);
}
}
}
