Activity Indicator similar to Instagram's. It is an Objective-C port of InstagramActivityIndicator.
Copy InstagramActivityIndicator.h & InstagramActivityIndicator.m files into XCode Project.
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Add a UIView on XIB / Storyboard from Interface Builder and change its class from UIView to InstagramActivityIndicator.
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Customize its properties through Attribute Inspector.
InstagramActivityIndicator *indicator = [[InstagramActivityIndicator alloc]initWithFrame:CGRectMake(0, 0, 70, 70)];
indicator.lineWidth = 3;
indicator.strokeColor = [UIColor brownColor];
indicator.numSegments = 15;
indicator.rotationDuration = 10;
indicator.animationDuration = 1.0;
indicator.center = self.view.center;
[self.view addSubview:indicator];
[indicator startAnimating];
iOS 7.0+
MIT License