private void updateSnackBarPosition(CoordinatorLayout parent, V child, View dependency, float translationY)
{
if (dependency != null && dependency is Snackbar.SnackbarLayout)
{
ViewCompat.Animate(dependency).SetInterpolator(INTERPOLATOR).SetDuration(80).SetStartDelay(0).TranslationY(translationY).Start();
}
}
/// <param name="animate"> whether to animate the change </param>
/// <returns> this, to allow builder pattern </returns>
public virtual BadgeItem Show(bool animate)
{
mIsHidden = false;
if (WeakReferenceValid)
{
TextView textView = (TextView)mTextViewRef.Get();
if (animate)
{
textView.ScaleX = 0;
textView.ScaleY = 0;
textView.Visibility = ViewStates.Visible;
ViewPropertyAnimatorCompat animatorCompat = ViewCompat.Animate(textView);
animatorCompat.Cancel();
animatorCompat.SetDuration(mAnimationDuration);
animatorCompat.ScaleX(1).ScaleY(1);
animatorCompat.SetListener(null);
animatorCompat.Start();
}
else
{
textView.ScaleX = 1;
textView.ScaleY = 1;
textView.Visibility = ViewStates.Visible;
}
}
return(this);
}
/// <summary>
/// This method initiates the bottomNavigationBar and handles layout related values
/// </summary>
private void init()
{
// MarginLayoutParams marginParams = new ViewGroup.MarginLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MatchParent, (int) getContext().getResources().GetDimension(Resource.Dimension.bottom_navigation_padded_height)));
// marginParams.setMargins(0, (int) getContext().getResources().GetDimension(Resource.Dimension.bottom_navigation_top_margin_correction), 0, 0);
LayoutParameters = new ViewGroup.LayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MatchParent, ViewGroup.LayoutParams.WrapContent));
LayoutInflater inflater = LayoutInflater.From(Context);
View parentView = inflater.Inflate(Resource.Layout.bottom_navigation_bar_container, this, true);
mBackgroundOverlay = (FrameLayout)parentView.FindViewById(Resource.Id.bottom_navigation_bar_overLay);
mContainer = (FrameLayout)parentView.FindViewById(Resource.Id.bottom_navigation_bar_container);
mTabContainer = (LinearLayout)parentView.FindViewById(Resource.Id.bottom_navigation_bar_item_container);
if (Build.VERSION.SdkInt >= BuildVersionCodes.Lollipop)
{
this.OutlineProvider = ViewOutlineProvider.Bounds;
}
else
{
//to do
}
ViewCompat.SetElevation(this, mElevation);
SetClipToPadding(false);
}
static void OnLayoutChange(object sender, global::Android.Views.View.LayoutChangeEventArgs e)
{
if (sender is IVisualElementRenderer renderer && renderer.View is ImageView imageView)
{
AViewCompat.SetClipBounds(imageView, imageView.GetScaleType() == AScaleType.CenterCrop ? new ARect(0, 0, e.Right - e.Left, e.Bottom - e.Top) : null);
}
}
protected override void OnLayout(bool changed, int l, int t, int r, int b)
{
base.OnLayout(changed, l, t, r, b);
AViewCompat.SetClipBounds(this, new Rect(0, 0, Width, Height));
// After a direct (non-animated) scroll operation, we may need to make adjustments
// to align the target item; if an adjustment is pending, execute it here.
// (Deliberately checking the private member here rather than the property accessor; the accessor will
// create a new ScrollHelper if needed, and there's no reason to do that until a Scroll is requested.)
_scrollHelper?.AdjustScroll();
}
// public void setmFabBehaviour(int mFabBehaviour) {
// this.mFabBehaviour = mFabBehaviour;
// }
///////////////////////////////////////////////////////////////////////////
// Animator Initializer
///////////////////////////////////////////////////////////////////////////
private void ensureOrCancelAnimator(FloatingActionButton fab)
{
if (mFabTranslationYAnimator == null)
{
mFabTranslationYAnimator = ViewCompat.Animate(fab);
mFabTranslationYAnimator.SetDuration(400);
mFabTranslationYAnimator.SetInterpolator(FAST_OUT_SLOW_IN_INTERPOLATOR);
}
else
{
mFabTranslationYAnimator.Cancel();
}
}
/// <summary>
/// Internal Method
/// <para>
/// used to set animation and
/// takes care of cancelling current animation
/// and sets duration and interpolator for animation
///
/// </para>
/// </summary>
/// <param name="offset"> translation offset that needs to set with animation </param>
//JAVA TO C# CONVERTER WARNING: 'final' parameters are not available in .NET:
//ORIGINAL LINE: private void animateOffset(final int offset)
private void animateOffset(int offset)
{
if (mTranslationAnimator == null)
{
mTranslationAnimator = ViewCompat.Animate(this);
mTranslationAnimator.SetDuration(mRippleAnimationDuration);
mTranslationAnimator.SetInterpolator(INTERPOLATOR);
}
else
{
mTranslationAnimator.Cancel();
}
mTranslationAnimator.TranslationY(offset).Start();
}
public void OnAttach()
{
_isAttached = true;
#if V4COMPAT
ViewCompat.postOnAnimation(target, () =>
{
if (isAttached)
{
target.invalidate();
ViewCompat.postOnAnimation(target, this);
}
});
#else
AnimationHandler();
#endif
}
///////////////////////////////////////////////////////////////////////////
// Animating Fab based on Changes
///////////////////////////////////////////////////////////////////////////
private void updateFabTranslationForBottomNavigationBar(CoordinatorLayout parent, FloatingActionButton fab, View dependency)
{
float snackBarTranslation = getFabTranslationYForSnackBar(parent, fab);
float[] bottomBarParameters = getFabTranslationYForBottomNavigationBar(parent, fab);
float bottomBarTranslation = bottomBarParameters[0];
float bottomBarHeight = bottomBarParameters[1];
float targetTransY = 0;
if (snackBarTranslation >= bottomBarTranslation)
{
// when snackBar is below BottomBar in translation present.
targetTransY = bottomBarTranslation;
}
else
{
targetTransY = snackBarTranslation;
}
// if (mFabBehaviour == BottomNavigationBar.FAB_BEHAVIOUR_DISAPPEAR) {
// if (targetTransY == 0) {
// fab.hide();
// } else {
// fab.show();
// }
// }
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final float currentTransY = Android.Support.V4.View.ViewCompat.getTranslationY(fab);
float currentTransY = ViewCompat.GetTranslationY(fab);
// Make sure that any current animation is cancelled
ensureOrCancelAnimator(fab);
if (fab.IsShown && Math.Abs(currentTransY - targetTransY) > (fab.Height * 0.667f))
{
// If the FAB will be travelling by more than 2/3 of it's height, let's animate it instead
mFabTranslationYAnimator.TranslationY(targetTransY).Start();
}
else
{
// Now update the translation Y
ViewCompat.SetTranslationY(fab, targetTransY);
}
}
private float getFabTranslationYForSnackBar(CoordinatorLayout parent, FloatingActionButton fab)
{
float minOffset = 0;
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final java.util.List<Android.View.View> dependencies = parent.getDependencies(fab);
IList <View> dependencies = parent.GetDependencies(fab);
for (int i = 0, z = dependencies.Count; i < z; i++)
{
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final Android.View.View view = dependencies.get(i);
View view = dependencies[i];
if (view is Snackbar.SnackbarLayout && parent.DoViewsOverlap(fab, view))
{
minOffset = Math.Min(minOffset, ViewCompat.GetTranslationY(view) - view.Height);
}
}
return(minOffset);
}
/// <param name="animate"> whether to animate the change </param>
/// <returns> this, to allow builder pattern </returns>
public virtual BadgeItem Hide(bool animate)
{
mIsHidden = true;
if (WeakReferenceValid)
{
TextView textView = (TextView)mTextViewRef.Get();
if (animate)
{
ViewPropertyAnimatorCompat animatorCompat = ViewCompat.Animate(textView);
animatorCompat.Cancel();
animatorCompat.SetDuration(mAnimationDuration);
animatorCompat.ScaleX(0).ScaleY(0);
animatorCompat.SetListener(new ViewPropertyAnimatorListenerAnonymousInnerClass(this));
animatorCompat.Start();
}
else
{
textView.Visibility = ViewStates.Gone;
}
}
return(this);
}
///////////////////////////////////////////////////////////////////////////
// Fab Translation due to SnackBar and Due to BottomBar
///////////////////////////////////////////////////////////////////////////
private float[] getFabTranslationYForBottomNavigationBar(CoordinatorLayout parent, FloatingActionButton fab)
{
float minOffset = 0;
float viewHeight = 0;
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final java.util.List<Android.View.View> dependencies = parent.getDependencies(fab);
IList <View> dependencies = parent.GetDependencies(fab);
for (int i = 0, z = dependencies.Count; i < z; i++)
{
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final Android.View.View view = dependencies.get(i);
View view = dependencies[i];
if (view is BottomNavigationBar)
{
viewHeight = view.Height;
minOffset = Math.Min(minOffset, ViewCompat.GetTranslationY(view) - viewHeight);
}
}
float[] returnValues = new float[] { minOffset, viewHeight };
return(returnValues);
}
private void updateSnackBarPosition(CoordinatorLayout parent, V child, View dependency)
{
updateSnackBarPosition(parent, child, dependency, ViewCompat.GetTranslationY(child) - child.Height);
}
