internal override void transformViewForTransition(int fromIndex, int toIndex, android.view.View
view, bool animate_1)
{
if (!animate_1)
{
((android.widget.StackView.StackFrame)view).cancelSliderAnimator();
view.setRotationX(0f);
android.widget.StackView.LayoutParams lp = (android.widget.StackView.LayoutParams
)view.getLayoutParams();
lp.setVerticalOffset(0);
lp.setHorizontalOffset(0);
}
if (fromIndex == -1 && toIndex == getNumActiveViews() - 1)
{
transformViewAtIndex(toIndex, view, false);
view.setVisibility(VISIBLE);
view.setAlpha(1.0f);
}
else
{
if (fromIndex == 0 && toIndex == 1)
{
((android.widget.StackView.StackFrame)view).cancelSliderAnimator();
view.setVisibility(VISIBLE);
int duration = Sharpen.Util.Round(mStackSlider.getDurationForNeutralPosition(mYVelocity
));
android.widget.StackView.StackSlider animationSlider = new android.widget.StackView
.StackSlider(this, mStackSlider);
animationSlider.setView(view);
if (animate_1)
{
android.animation.PropertyValuesHolder slideInY = android.animation.PropertyValuesHolder
.ofFloat("YProgress", 0.0f);
android.animation.PropertyValuesHolder slideInX = android.animation.PropertyValuesHolder
.ofFloat("XProgress", 0.0f);
android.animation.ObjectAnimator slideIn = android.animation.ObjectAnimator.ofPropertyValuesHolder
(animationSlider, slideInX, slideInY);
slideIn.setDuration(duration);
slideIn.setInterpolator(new android.view.animation.LinearInterpolator());
((android.widget.StackView.StackFrame)view).setSliderAnimator(slideIn);
slideIn.start();
}
else
{
animationSlider.setYProgress(0f);
animationSlider.setXProgress(0f);
}
}
else
{
if (fromIndex == 1 && toIndex == 0)
{
((android.widget.StackView.StackFrame)view).cancelSliderAnimator();
int duration = Sharpen.Util.Round(mStackSlider.getDurationForOffscreenPosition(mYVelocity
));
android.widget.StackView.StackSlider animationSlider = new android.widget.StackView
.StackSlider(this, mStackSlider);
animationSlider.setView(view);
if (animate_1)
{
android.animation.PropertyValuesHolder slideOutY = android.animation.PropertyValuesHolder
.ofFloat("YProgress", 1.0f);
android.animation.PropertyValuesHolder slideOutX = android.animation.PropertyValuesHolder
.ofFloat("XProgress", 0.0f);
android.animation.ObjectAnimator slideOut = android.animation.ObjectAnimator.ofPropertyValuesHolder
(animationSlider, slideOutX, slideOutY);
slideOut.setDuration(duration);
slideOut.setInterpolator(new android.view.animation.LinearInterpolator());
((android.widget.StackView.StackFrame)view).setSliderAnimator(slideOut);
slideOut.start();
}
else
{
animationSlider.setYProgress(1.0f);
animationSlider.setXProgress(0f);
}
}
else
{
if (toIndex == 0)
{
view.setAlpha(0.0f);
view.setVisibility(INVISIBLE);
}
else
{
if ((fromIndex == 0 || fromIndex == 1) && toIndex > 1)
{
view.setVisibility(VISIBLE);
view.setAlpha(1.0f);
view.setRotationX(0f);
android.widget.StackView.LayoutParams lp = (android.widget.StackView.LayoutParams
)view.getLayoutParams();
lp.setVerticalOffset(0);
lp.setHorizontalOffset(0);
}
else
{
if (fromIndex == -1)
{
view.setAlpha(1.0f);
view.setVisibility(VISIBLE);
}
else
{
if (toIndex == -1)
{
if (animate_1)
{
postDelayed(new _Runnable_294(view), STACK_RELAYOUT_DURATION);
}
else
{
view.setAlpha(0f);
}
}
}
}
}
}
}
}
// Implement the faked perspective
if (toIndex != -1)
{
transformViewAtIndex(toIndex, view, animate_1);
}
}
private void handlePointerUp(android.view.MotionEvent ev)
{
int pointerIndex = ev.findPointerIndex(mActivePointerId);
float newY = ev.getY(pointerIndex);
int deltaY = (int)(newY - mInitialY);
mLastInteractionTime = Sharpen.Util.CurrentTimeMillis;
if (mVelocityTracker != null)
{
mVelocityTracker.computeCurrentVelocity(1000, mMaximumVelocity);
mYVelocity = (int)mVelocityTracker.getYVelocity(mActivePointerId);
}
if (mVelocityTracker != null)
{
mVelocityTracker.recycle();
mVelocityTracker = null;
}
if (deltaY > mSwipeThreshold && mSwipeGestureType == GESTURE_SLIDE_DOWN && mStackSlider
.mMode == android.widget.StackView.StackSlider.NORMAL_MODE)
{
// We reset the gesture variable, because otherwise we will ignore showPrevious() /
// showNext();
mSwipeGestureType = GESTURE_NONE;
// Swipe threshold exceeded, swipe down
if (mStackMode == ITEMS_SLIDE_UP)
{
showPrevious();
}
else
{
showNext();
}
mHighlight.bringToFront();
}
else
{
if (deltaY < -mSwipeThreshold && mSwipeGestureType == GESTURE_SLIDE_UP && mStackSlider
.mMode == android.widget.StackView.StackSlider.NORMAL_MODE)
{
// We reset the gesture variable, because otherwise we will ignore showPrevious() /
// showNext();
mSwipeGestureType = GESTURE_NONE;
// Swipe threshold exceeded, swipe up
if (mStackMode == ITEMS_SLIDE_UP)
{
showNext();
}
else
{
showPrevious();
}
mHighlight.bringToFront();
}
else
{
if (mSwipeGestureType == GESTURE_SLIDE_UP)
{
// Didn't swipe up far enough, snap back down
int duration;
float finalYProgress = (mStackMode == ITEMS_SLIDE_DOWN) ? 1 : 0;
if (mStackMode == ITEMS_SLIDE_UP || mStackSlider.mMode != android.widget.StackView
.StackSlider.NORMAL_MODE)
{
duration = Sharpen.Util.Round(mStackSlider.getDurationForNeutralPosition());
}
else
{
duration = Sharpen.Util.Round(mStackSlider.getDurationForOffscreenPosition());
}
android.widget.StackView.StackSlider animationSlider = new android.widget.StackView
.StackSlider(this, mStackSlider);
android.animation.PropertyValuesHolder snapBackY = android.animation.PropertyValuesHolder
.ofFloat("YProgress", finalYProgress);
android.animation.PropertyValuesHolder snapBackX = android.animation.PropertyValuesHolder
.ofFloat("XProgress", 0.0f);
android.animation.ObjectAnimator pa = android.animation.ObjectAnimator.ofPropertyValuesHolder
(animationSlider, snapBackX, snapBackY);
pa.setDuration(duration);
pa.setInterpolator(new android.view.animation.LinearInterpolator());
pa.start();
}
else
{
if (mSwipeGestureType == GESTURE_SLIDE_DOWN)
{
// Didn't swipe down far enough, snap back up
float finalYProgress = (mStackMode == ITEMS_SLIDE_DOWN) ? 0 : 1;
int duration;
if (mStackMode == ITEMS_SLIDE_DOWN || mStackSlider.mMode != android.widget.StackView
.StackSlider.NORMAL_MODE)
{
duration = Sharpen.Util.Round(mStackSlider.getDurationForNeutralPosition());
}
else
{
duration = Sharpen.Util.Round(mStackSlider.getDurationForOffscreenPosition());
}
android.widget.StackView.StackSlider animationSlider = new android.widget.StackView
.StackSlider(this, mStackSlider);
android.animation.PropertyValuesHolder snapBackY = android.animation.PropertyValuesHolder
.ofFloat("YProgress", finalYProgress);
android.animation.PropertyValuesHolder snapBackX = android.animation.PropertyValuesHolder
.ofFloat("XProgress", 0.0f);
android.animation.ObjectAnimator pa = android.animation.ObjectAnimator.ofPropertyValuesHolder
(animationSlider, snapBackX, snapBackY);
pa.setDuration(duration);
pa.start();
}
}
}
}
mActivePointerId = INVALID_POINTER;
mSwipeGestureType = GESTURE_NONE;
}
private void initStackView()
{
configureViewAnimator(NUM_ACTIVE_VIEWS, 1);
setStaticTransformationsEnabled(true);
android.view.ViewConfiguration configuration = android.view.ViewConfiguration.get
(getContext());
mTouchSlop = configuration.getScaledTouchSlop();
mMaximumVelocity = configuration.getScaledMaximumFlingVelocity();
mActivePointerId = INVALID_POINTER;
mHighlight = new android.widget.ImageView(getContext());
mHighlight.setLayoutParams(new android.widget.StackView.LayoutParams(this, mHighlight
));
addViewInLayout(mHighlight, -1, new android.widget.StackView.LayoutParams(this, mHighlight
));
mClickFeedback = new android.widget.ImageView(getContext());
mClickFeedback.setLayoutParams(new android.widget.StackView.LayoutParams(this, mClickFeedback
));
addViewInLayout(mClickFeedback, -1, new android.widget.StackView.LayoutParams(this
, mClickFeedback));
mClickFeedback.setVisibility(INVISIBLE);
mStackSlider = new android.widget.StackView.StackSlider(this);
if (sHolographicHelper == null)
{
sHolographicHelper = new android.widget.StackView.HolographicHelper(mContext);
}
setClipChildren(false);
setClipToPadding(false);
// This sets the form of the StackView, which is currently to have the perspective-shifted
// views above the active view, and have items slide down when sliding out. The opposite is
// available by using ITEMS_SLIDE_UP.
mStackMode = ITEMS_SLIDE_DOWN;
// This is a flag to indicate the the stack is loading for the first time
mWhichChild = -1;
// Adjust the frame padding based on the density, since the highlight changes based
// on the density
float density = mContext.getResources().getDisplayMetrics().density;
mFramePadding = (int)System.Math.Ceiling(density * FRAME_PADDING);
}
