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copied!<p>A simple option without using drawrect is to just put a thin UIView between the two buttons. Set the view's background color to the line color you want.</p> <p><strong>Edit:</strong><br> You could still use thin UIViews and toggle their visibility as needed.<br> If you still want to draw the lines, you might want to create a custom UIView.</p> <pre><code>@interface CustomView : UIView { UIButton *button1; UIButton *button2; } @end @implementation CustomView - (id) initWithFrame:(CGRect)frame { if (self = [super initWithFrame:frame]) { UIButton *btn1 = [UIButton buttonWithType:UIButtonTypeRoundedRect]; btn1.frame = CGRectMake(20, 5, 80, 30); [btn1 setTitle:@"Button1" forState:UIControlStateNormal]; [btn1 addTarget:self action:@selector(buttonPressed:) forControlEvents:UIControlEventTouchUpInside]; button1 = btn1; [self addSubview:btn1]; UIButton *btn2 = [UIButton buttonWithType:UIButtonTypeRoundedRect]; btn2.frame = CGRectMake(20, 60, 80, 30); [btn2 setTitle:@"Button2" forState:UIControlStateNormal]; [btn2 addTarget:self action:@selector(buttonPressed:) forControlEvents:UIControlEventTouchUpInside]; button2 = btn2; [self addSubview:btn2]; } return self; } -(void)drawRect:(CGRect)rect { CGContextRef context = UIGraphicsGetCurrentContext(); if (button1.selected) CGContextSetRGBStrokeColor(context, 1.0, 0.0, 0.0, 1.0); else CGContextSetRGBStrokeColor(context, 0.0, 1.0, 0.0, 1.0); CGContextSetLineWidth(context, 1.0); CGContextBeginPath(context); CGContextMoveToPoint(context, 10.0, 45.0); CGContextAddLineToPoint(context, 150.0, 45.0); if (button1.selected) { CGContextAddLineToPoint(context, 180.0, 35.0); } CGContextDrawPath(context, kCGPathStroke); } -(void)buttonPressed:(UIButton *)button { button1.selected = !button1.selected; button2.selected = !button2.selected; [self setNeedsDisplay]; } @end </code></pre>

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