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objective-cioscore-graphicsuicolor

UIColor SetFill doesn't work

In this code

for (int i=0;i<3;i++) {
    CGContextAddLineToPoint(context, self.xShift+15+self.rectLen*self.width+self.rectLen*(i+1), self.yShift+self.rectLen*10);
    CGContextAddLineToPoint(context, self.xShift+15+self.rectLen*self.width+self.rectLen*(i+1), self.yShift+self.rectLen*10+self.rectLen);
    CGContextAddLineToPoint(context, self.xShift+15+self.rectLen*self.width+self.rectLen*i, self.yShift+self.rectLen*10+self.rectLen);
    CGContextAddLineToPoint(context, self.xShift+15+self.rectLen*self.width+self.rectLen*i, self.yShift+self.rectLen*10);
    CGContextMoveToPoint(context, self.xShift+15+self.rectLen*self.width+self.rectLen*i, self.yShift+self.rectLen*10);
}
    CGContextAddLineToPoint(context, self.xShift+15+self.rectLen*self.width+self.rectLen*4, self.yShift+self.rectLen*10);
    CGContextAddLineToPoint(context, self.xShift+15+self.rectLen*self.width+self.rectLen*4, self.yShift+self.rectLen*10+self.rectLen);
    CGContextAddLineToPoint(context, self.xShift+15+self.rectLen*self.width+self.rectLen*3, self.yShift+self.rectLen*10+self.rectLen);
    CGContextAddLineToPoint(context, self.xShift+15+self.rectLen*self.width+self.rectLen*3, self.yShift+self.rectLen*10);
    [[UIColor cyanColor] setFill];
    [[UIColor blackColor] setStroke];
    CGContextSetLineWidth(context, 1);
    CGContextDrawPath(context, kCGPathStroke);

Line with setFill method doesn't work. What might be the problem of this? Code is located in drawRect: method

Solution

  • setFill isn't for Core Graphics drawing but for drawing like [myUIBezierPath fill];

    Instead set the fill color and stroke color using:

    CGContextSetFillColorWithColor(context, [[UIColor cyanColor] CGColor]);
CGContextSetStrokeColorWithColor(context, [[UIColor blackColor] CGColor]);

    Also, the following line:

    CGContextDrawPath(context, kCGPathStroke);

    Will only stroke the path, since the drawing mode is set to kCGPathStoke. To fill it as well you should replace it with

    CGContextDrawPath(context, kCGPathFillStroke);

    If your path has holes in it or crosses itself you should use even-odd fill and stroke

    CGContextDrawPath(context, kCGPathEOFillStroke);