private void handleActionUp(MotionEvent event) {
if (whichCardOnTouch == -1 || !isTouchOnCard) return;
long pressDuration = System.currentTimeMillis() - mPressStartTime;
computeVelocity();
if (!isDisplaying
&& ((event.getY() - firstDownY < 0
&& (Math.abs(event.getY() - firstDownY) > mMoveDistanceToTrigger))
|| (yVelocity < 0
&& Math.abs(yVelocity) > mMinVelocity
&& Math.abs(yVelocity) > Math.abs(xVelocity)))) {
displayCard(whichCardOnTouch);
} else if (!isDisplaying
&& pressDuration < MAX_CLICK_TIME
&& // means click
distance(firstDownX, firstDownY, event.getX(), event.getY()) < MAX_CLICK_DISTANCE) {
displayCard(whichCardOnTouch);
} else if (!isDisplaying
&& isDragging
&& ((event.getY() - firstDownY > 0)
|| Math.abs(event.getY() - firstDownY) < mMoveDistanceToTrigger)) {
hideCard(whichCardOnTouch);
} else if (isDisplaying) {
float currentY = ViewHelper.getY(getChildAt(mDisplayingCard));
if (currentY < mMarginTop || currentY < (mMarginTop + mMoveDistanceToTrigger)) {
ObjectAnimator.ofFloat(getChildAt(mDisplayingCard), "y", currentY, mMarginTop)
.setDuration(mDuration)
.start();
} else if (currentY > (mMarginTop + mMoveDistanceToTrigger)) {
hideCard(mDisplayingCard);
}
}
isTouchOnCard = false;
deltaY = 0;
isDragging = false;
}
private void handleActionMove(MotionEvent event) {
if (whichCardOnTouch == -1 || !isTouchOnCard) return;
if (supportScrollInView((int) (firstDownY - event.getY()))) return;
computeVelocity();
if (Math.abs(yVelocity) < Math.abs(xVelocity)) return;
if (!isDragging
&& Math.abs(event.getY() - firstDownY) > mTouchSlop
&& Math.abs(event.getX() - firstDownX) < mTouchSlop) {
isDragging = true;
downY = event.getY();
}
if (isDragging) {
deltaY = event.getY() - downY;
downY = event.getY();
View touchingChildView = getChildAt(whichCardOnTouch);
if (!mBoundary) {
touchingChildView.offsetTopAndBottom((int) deltaY);
} else {
float touchingViewY = ViewHelper.getY(touchingChildView);
if (touchingViewY + deltaY <= mMarginTop) {
touchingChildView.offsetTopAndBottom((int) (mMarginTop - touchingViewY));
} else if (touchingViewY + deltaY >= mTouchingViewOriginY) {
touchingChildView.offsetTopAndBottom((int) (mTouchingViewOriginY - touchingViewY));
} else {
touchingChildView.offsetTopAndBottom((int) deltaY);
}
}
}
}