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POReceiving errors when trying to draw with UIBezierPath
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copied!<p>I'm trying to draw some lines inside my custom UIView.</p> <p>From what I can see, to save messing around with CoreGraphics, I can use UIBezierPath (i've done similar with NSBezierPath on the Mac). I have some code that tries to draw the lines but I get output errors and can't find a decent reference with some sample code to illustrate whats going on, any ideas? Code below...</p> <p>Code: </p> <pre><code> - (void)drawRect:(CGRect)rect { // Drawing code UIBezierPath *line1 = [UIBezierPath bezierPath]; [[UIColor blackColor] setStroke]; [line1 setLineWidth:3]; [line1 moveToPoint:CGPointMake(0, 0)]; [line1 addLineToPoint:CGPointMake(320, 480)]; [line1 stroke]; } </code></pre> <p>Errors:</p> <pre><code>Sat Oct 2 19:26:43 mercury.config mobileManual[46994] <Error>: CGContextSetStrokeColorWithColor: invalid context 0x0 </code></pre> <p>UPDATE: Here's the current code, No errors but also no drawing.. ideas?</p> <pre><code>// Implement viewDidLoad to do additional setup after loading the view, typically from a nib. - (void)viewDidLoad { [super viewDidLoad]; [self.view setBackgroundColor:[UIColor yellowColor]]; [self.view setNeedsDisplay]; } - (void)drawRect:(CGRect)rect { // Drawing code CGContextRef context = UIGraphicsGetCurrentContext(); CGContextSaveGState(context); UIBezierPath *line1 = [UIBezierPath bezierPath]; [line1 setLineWidth:3]; [line1 moveToPoint:CGPointMake(0, 0)]; [line1 addLineToPoint:CGPointMake(320, 480)]; [line1 stroke]; CGContextRestoreGState(context); } </code></pre>

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