/** De-emphasize the other photos on the table. */
public void fadeOutBackground(final View photo) {
resolveBackgroundQueue();
if (mBackgroudOptimization) {
mBackground.animate().withLayer().setDuration(mPickUpDuration).alpha(0f);
} else {
mScrim.setAlpha(0f);
mScrim.setVisibility(View.VISIBLE);
bringChildToFront(mScrim);
bringChildToFront(photo);
mScrim.animate().withLayer().setDuration(mPickUpDuration).alpha(1f);
}
}
/** Animate to a random place and orientation, down on the table (visually small). */
public void dropOnTable(final View photo, final Interpolator interpolator) {
float angle = randfrange(-mImageRotationLimit, mImageRotationLimit);
PointF p =
randMultiDrop(
sRNG.nextInt(),
(float) sRNG.nextGaussian(),
(float) sRNG.nextGaussian(),
mWidth,
mHeight);
float x = p.x;
float y = p.y;
log("drop it at %f, %f", x, y);
float x0 = photo.getX();
float y0 = photo.getY();
x -= mLongSide / 2f;
y -= mShortSide / 2f;
log("fixed offset is %f, %f ", x, y);
float dx = x - x0;
float dy = y - y0;
float dist = (float) Math.hypot(dx, dy);
int duration = (int) (1000f * dist / mThrowSpeed);
duration = Math.max(duration, 1000);
log("animate it");
// toss onto table
resolveBackgroundQueue();
photo
.animate()
.withLayer()
.scaleX(mTableRatio / mImageRatio)
.scaleY(mTableRatio / mImageRatio)
.rotation(angle)
.x(x)
.y(y)
.setDuration(duration)
.setInterpolator(interpolator)
.withEndAction(
new Runnable() {
@Override
public void run() {
mWaitingToJoinBackground.add(photo);
}
});
}