JTBorderDotAnimation

JTBorderDotAnimation is a simple animation for have dots turning around a UIView on iOS.

Installation

With CocoaPods, add this line to your Podfile.

pod 'JTBorderDotAnimation', '~> 1.0'

Screenshots

Usage

Basic usage

Just import JTBorderDotAnimation.h.

#import "JTBorderDotAnimation.h"

@interface ViewController : UIViewController

@property (weak, nonatomic) IBOutlet UIView *animatedView;

@property (strong, nonatomic) JTBorderDotAnimation *dotAnimation;

@end

Assign the view you want to animate and start the animation.

- (void)viewDidLoad
{
    [super viewDidLoad];
 
    self.dotAnimation = [JTBorderDotAnimation new];
    self.dotAnimation.animatedView = self.animatedView;
}

- (void)viewDidAppear:(BOOL)animated
{
    [super viewDidAppear:animated];

    [self.dotAnimation start];
}

Customization

You can easily customize the animation.

• numberPoints
• duration
• repeatCount
• pointSize
• pointColor

Example:

- (void)viewDidLoad
{
    [super viewDidLoad];
 
    self.dotAnimation = [JTBorderDotAnimation new];
    self.dotAnimation.animatedView = self.animatedView;

    self.dotAnimation.numberPoints = 6;
    self.dotAnimation.duration = 6.;
    self.dotAnimation.repeatCount = 3;
    self.dotAnimation.pointSize = 5.;
    self.dotAnimation.pointColor = [UIColor orangeColor];
}

Notes

clipsToBounds property of the animatedView is set to NO at the beginning of the animation.

You can also change the speed of the animation without stopping it with:

    CALayer *layer = self.animatedView.layer;
    
    layer.timeOffset = [layer convertTime:CACurrentMediaTime() fromLayer:nil];
    layer.beginTime = CACurrentMediaTime();
    layer.speed = 2.;

Requirements

• iOS 7 or higher
• Automatic Reference Counting (ARC)

Known Issues

• Animation stop when the application go in background, you have to restart it manually

Author

• Jonathan Tribouharet (@johntribouharet)

License

JTBorderDotAnimation is released under the MIT license. See the LICENSE file for more info.