public void display() {
// Create autorelease pool per frame to avoid possible deadlock
// situations
// because there are 3 CAMetalDrawables sitting in an autorelease pool.
try (NSAutoreleasePool pool = new NSAutoreleasePool()) {
// handle display changes here
if (layerSizeDidUpdate) {
// set the metal layer to the drawable size in case orientation
// or size changes
CGSize drawableSize = getBounds().getSize();
drawableSize.setWidth(drawableSize.getWidth() * this.getContentScaleFactor());
drawableSize.setHeight(drawableSize.getHeight() * this.getContentScaleFactor());
metalLayer.setDrawableSize(drawableSize);
// renderer delegate method so renderer can resize anything if
// needed
delegate.reshape(this);
layerSizeDidUpdate = false;
}
// rendering delegate method to ask renderer to draw this frame's
// content
delegate.render(this);
// do not retain current drawable beyond the frame.
// There should be no strong references to this object outside of
// this view class
((NSObject) currentDrawable).dispose();
currentDrawable = null;
}
}
@Override
public void viewDidLoad() {
super.viewDidLoad();
getTableView().setSeparatorStyle(UITableViewCellSeparatorStyle.None);
getTableView().setBackgroundColor(UIColor.black());
getNavigationItem().setTitleView(new UIImageView(UIImage.getImage("TitleFindFriends")));
if (getNavigationController().getViewControllers().first() == this) {
UIBarButtonItem dismissLeftBarButtonItem =
new UIBarButtonItem(
"Back",
UIBarButtonItemStyle.Plain,
new UIBarButtonItem.OnClickListener() {
@Override
public void onClick(UIBarButtonItem barButtonItem) {
getNavigationController().dismissViewController(true, null);
}
});
getNavigationItem().setLeftBarButtonItem(dismissLeftBarButtonItem);
} else {
getNavigationItem().setLeftBarButtonItem(null);
}
if (MFMailComposeViewController.canSendMail() || MFMessageComposeViewController.canSendText()) {
headerView = new UIView(new CGRect(0, 0, 320, 67));
headerView.setBackgroundColor(UIColor.black());
UIButton clearButton = new UIButton(UIButtonType.Custom);
clearButton.setBackgroundColor(UIColor.clear());
clearButton.addOnTouchUpInsideListener(inviteFriendsButtonAction);
clearButton.setFrame(headerView.getFrame());
headerView.addSubview(clearButton);
String inviteString = "Invite friends";
CGRect boundingRect =
NSString.getBoundingRect(
inviteString,
new CGSize(310, Float.MAX_VALUE),
NSStringDrawingOptions.with(
NSStringDrawingOptions.TruncatesLastVisibleLine,
NSStringDrawingOptions.UsesLineFragmentOrigin),
new NSAttributedStringAttributes().setFont(UIFont.getBoldSystemFont(18)),
null);
CGSize inviteStringSize = boundingRect.getSize();
UILabel inviteLabel =
new UILabel(
new CGRect(
10,
(headerView.getFrame().getSize().getHeight() - inviteStringSize.getHeight()) / 2,
inviteStringSize.getWidth(),
inviteStringSize.getHeight()));
inviteLabel.setText(inviteString);
inviteLabel.setFont(UIFont.getBoldSystemFont(18));
inviteLabel.setTextColor(UIColor.white());
inviteLabel.setBackgroundColor(UIColor.clear());
headerView.addSubview(inviteLabel);
getTableView().setTableHeaderView(headerView);
}
}
private void animateView(UIView view, CGPoint targetPosition, Runnable completion) {
CGSize size = view.getFrame().getSize();
CGSize grow = new CGSize(size.getWidth() * 1.7, size.getHeight() * 1.7);
CGSize shrink = new CGSize(size.getWidth() * .4, size.getHeight() * .4);
CAKeyframeAnimation pathAnimation = new CAKeyframeAnimation("position");
pathAnimation.setCalculationMode(CAAnimationCalculationMode.Paced);
pathAnimation.setFillMode(CAFillMode.Forwards);
pathAnimation.setRemovedOnCompletion(false);
pathAnimation.setDuration(.5);
UIBezierPath path = new UIBezierPath();
path.move(view.getCenter());
path.addQuadCurve(
targetPosition, new CGPoint(view.getCenter().getX(), view.getCenter().getY()));
pathAnimation.setPath(path.getCGPath());
CABasicAnimation growAnimation = new CABasicAnimation("bounds.size");
growAnimation.setToValue(NSValue.valueOf(grow));
growAnimation.setFillMode(CAFillMode.Forwards);
growAnimation.setRemovedOnCompletion(false);
growAnimation.setDuration(.1);
CABasicAnimation shrinkAnimation = new CABasicAnimation("bounds.size");
shrinkAnimation.setToValue(NSValue.valueOf(shrink));
shrinkAnimation.setFillMode(CAFillMode.Forwards);
shrinkAnimation.setRemovedOnCompletion(false);
shrinkAnimation.setDuration(.4);
shrinkAnimation.setBeginTime(.1);
CAAnimationGroup animations = new CAAnimationGroup();
animations.setAnimations(new NSArray<>(pathAnimation, growAnimation, shrinkAnimation));
animations.setFillMode(CAFillMode.Forwards);
animations.setRemovedOnCompletion(false);
animations.setDuration(.5);
animations.setDelegate(
new CAAnimationDelegateAdapter() {
@Override
public void didStop(CAAnimation anim, boolean flag) {
view.removeFromSuperview();
if (completion != null) {
completion.run();
}
}
});
view.getLayer().addAnimation(animations, "movetocart");
}
public void computeConstantSize() {
CGSize minSize = CGSize.Zero();
CGSize intrinsicSize = CGSize.Zero();
for (Drawable drawable : drawables) {
CGSize min = drawable.getMinimumSize();
CGSize intrinsic = drawable.getIntrinsicSize();
if (min.getWidth() > minSize.getWidth()) minSize.setWidth(min.getWidth());
if (min.getHeight() > minSize.getHeight()) minSize.setHeight(min.getHeight());
if (intrinsic.getWidth() > intrinsicSize.getWidth())
intrinsicSize.setWidth(intrinsic.getWidth());
if (intrinsic.getHeight() > intrinsicSize.getHeight())
intrinsicSize.setHeight(intrinsic.getHeight());
}
this.constantIntrinsicSize = intrinsicSize;
this.constantMinimumSize = minSize;
this.constantSizeComputed = true;
}
