Esempio n. 1
0
 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;
 }
Esempio n. 2
0
  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);
        }
      }
    }
  }