@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
Log.d("Fling", "Fling with " + velocityX + ", " + velocityY);
final View topCard = mTopCard;
float dx = e2.getX() - e1.getX();
if (Math.abs(dx) > mTouchSlop
&& Math.abs(velocityX) > Math.abs(velocityY)
&& Math.abs(velocityX) > mFlingSlop * 3) {
float targetX = topCard.getX();
float targetY = topCard.getY();
long duration = 0;
boundsRect.set(
0 - topCard.getWidth() - 100,
0 - topCard.getHeight() - 100,
getWidth() + 100,
getHeight() + 100);
while (boundsRect.contains((int) targetX, (int) targetY)) {
targetX += velocityX / 10;
targetY += velocityY / 10;
duration += 100;
}
duration = Math.min(500, duration);
mTopCard = getChildAt(getChildCount() - 2);
CardModel cardModel = (CardModel) getAdapter().getItem(getChildCount() - 1);
if (mTopCard != null) mTopCard.setLayerType(LAYER_TYPE_HARDWARE, null);
if (cardModel.getOnCardDismissedListener() != null) {
if (targetX > 0) {
cardModel.getOnCardDismissedListener().onLike();
} else {
cardModel.getOnCardDismissedListener().onDislike();
}
}
topCard
.animate()
.setDuration(duration)
.alpha(.75f)
.setInterpolator(new LinearInterpolator())
.x(targetX)
.y(targetY)
.rotation(Math.copySign(45, velocityX))
.setListener(
new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
removeViewInLayout(topCard);
ensureFull();
}
@Override
public void onAnimationCancel(Animator animation) {
onAnimationEnd(animation);
}
});
return true;
} else return false;
}
@Override
public boolean onInterceptTouchEvent(MotionEvent event) {
if (mTopCard == null) {
return false;
}
if (mGestureDetector.onTouchEvent(event)) {
return true;
}
final int pointerIndex;
final float x, y;
final float dx, dy;
switch (event.getActionMasked()) {
case MotionEvent.ACTION_DOWN:
mTopCard.getHitRect(childRect);
CardModel cardModel = (CardModel) getAdapter().getItem(getChildCount() - 1);
if (cardModel.getOnClickListener() != null) {
cardModel.getOnClickListener().OnClickListener();
}
pointerIndex = event.getActionIndex();
x = event.getX(pointerIndex);
y = event.getY(pointerIndex);
if (!childRect.contains((int) x, (int) y)) {
return false;
}
mLastTouchX = x;
mLastTouchY = y;
mActivePointerId = event.getPointerId(pointerIndex);
break;
case MotionEvent.ACTION_MOVE:
pointerIndex = event.findPointerIndex(mActivePointerId);
x = event.getX(pointerIndex);
y = event.getY(pointerIndex);
if (Math.abs(x - mLastTouchX) > mTouchSlop || Math.abs(y - mLastTouchY) > mTouchSlop) {
float[] points = new float[] {x - mTopCard.getLeft(), y - mTopCard.getTop()};
mTopCard.getMatrix().invert(mMatrix);
mMatrix.mapPoints(points);
mTopCard.setPivotX(points[0]);
mTopCard.setPivotY(points[1]);
return true;
}
}
return false;
}