Cocoaの日々情報局

描画＆アニメーションコードが参考になった。実機で見たが出来もいい。

@property (nonatomic, strong) CAShapeLayer *progressBackgroundLayer;
@property (nonatomic, strong) CAShapeLayer *progressLayer;
@property (nonatomic, strong) CAShapeLayer *iconLayer;

- (void) drawTick {
    CGFloat radius = MIN(self.frame.size.width, self.frame.size.height)/2;
    
    /*
     First draw a tick that looks like this:
     
     A---F
     |   |
     |   E-------D
     |           |
     B-----------C
     
     (Remember: (0,0) is top left)
     */
    UIBezierPath *tickPath = [UIBezierPath bezierPath];
    CGFloat tickWidth = radius * kTickWidthRatio;
    [tickPath moveToPoint:CGPointMake(0, 0)];                            // A
    [tickPath addLineToPoint:CGPointMake(0, tickWidth * 2)];             // B
    [tickPath addLineToPoint:CGPointMake(tickWidth * 3, tickWidth * 2)]; // C
    [tickPath addLineToPoint:CGPointMake(tickWidth * 3, tickWidth)];     // D
    [tickPath addLineToPoint:CGPointMake(tickWidth, tickWidth)];         // E
    [tickPath addLineToPoint:CGPointMake(tickWidth, 0)];                 // F
    [tickPath closePath];
      :

elbryan/FFCircularProgressView

This post is archived under GUIライブラリ