dclelland / cxoverlay

Basic UIView overlay (for tutorials etc.)

CXOverlay

Basic UIView overlay (for tutorials etc.). Inserts itself under all other subviews and uses drawRect: to cover the canvas with a colour and then cut out a CGRect.

✓ UIView category convenience methods

self.view.overlay = [[CXOverlay alloc] init];
self.view.overlay.cutout = CGRectMake(24.0f, 24.0f, 44.0f, 44.0f);
self.view.overlay.backgroundColor = [UIColor orangeColor];
self.view.overlay = nil;

✓ Supports animation with a crossfade effect.

[self.view.overlay setCutout:CGRectMake(24.0f, 48.0f, 44.0f, 44.0f) withDuration:1.0];

Full API:

CXOverlay

@property (nonatomic) CGRect cutout;

- (instancetype)initWithCutout:(CGRect)cutout;

- (void)setCutout:(CGRect)cutout withDuration:(NSTimeInterval)duration;
- (void)setCutout:(CGRect)cutout withDuration:(NSTimeInterval)duration andDelay:(NSTimeInterval)delay;
- (void)setCutout:(CGRect)cutout withDuration:(NSTimeInterval)duration andDelay:(NSTimeInterval)delay andCompletion:(void (^)(BOOL finished))completion;

UIView (CXOverlay)

@property (readwrite) CXOverlay *overlay;