/** Continue dynamically after a fling gesture, possibly off the screen. */
public void fling(final View photo, float dx, float dy, int duration, boolean spin) {
if (photo == getFocus()) {
if (moveFocus(photo, 0f) == null) {
moveFocus(photo, 180f);
}
}
moveToForeground(photo);
ViewPropertyAnimator animator =
photo
.animate()
.withLayer()
.xBy(dx)
.yBy(dy)
.setDuration(duration)
.setInterpolator(new DecelerateInterpolator(2f));
if (spin) {
animator.rotation(mThrowRotation);
}
if (photoOffTable(photo, (int) dx, (int) dy)) {
log("fling away");
animator.withEndAction(
new Runnable() {
@Override
public void run() {
fadeAway(photo, true);
}
});
}
}
/** Animate the selected photo to the foreground: zooming in to bring it forward. */
private void pickUp(final View photo) {
float photoWidth = photo.getWidth();
float photoHeight = photo.getHeight();
float scale = Math.min(getHeight() / photoHeight, getWidth() / photoWidth);
log("scale is %f", scale);
log("target it");
float x = (getWidth() - photoWidth) / 2f;
float y = (getHeight() - photoHeight) / 2f;
photo.setRotation(wrapAngle(photo.getRotation()));
log("animate it");
// lift up to the glass for a good look
mWaitingToJoinBackground.remove(photo);
moveToForeground(photo);
photo
.animate()
.withLayer()
.rotation(0f)
.rotationY(0f)
.alpha(1f)
.scaleX(scale)
.scaleY(scale)
.x(x)
.y(y)
.setDuration(mPickUpDuration)
.setInterpolator(new DecelerateInterpolator(2f))
.withEndAction(
new Runnable() {
@Override
public void run() {
log("endtimes: %f", photo.getX());
}
});
}