I am using a CGPathMutable to draw the hand on an analog clock:
minuteHandPath = CGPathCreateMutable();
CGPathMoveToPoint(minuteHandPath, nil, center.x, center.y);
CGPathAddLineToPoint(minuteHandPath, nil, center.x, center.y - 105);
CGPathCloseSubpath(minuteHandPath);
minuteHandLayer = [CAShapeLayer layer];
minuteHandLayer.path = minuteHandPath;
UIColor *myStrokeColor2 = [UIColor colorWithHue:0.6 saturation:0.24
brightness:0.71 alpha:1.0];
minuteHandLayer.strokeColor = myStrokeColor2.CGColor;
minuteHandLayer.lineWidth = 2.0;
[rootLayer addSublayer:minuteHandLayer];
In another method I would like to update this, say to change the color of
it. How can I do this? Presently I have tried:
- (void) myMethod {
minuteHandPath = CGPathCreateMutable();
//...
}
This gives me an error. I don't see a way yet to clear the path out and
redraw it using CGPathMoveToPoint, etc.
?
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