Ich habe eine Unterklasse vonUIButton wo ich überschreibedrawRect für einen kundenspezifischen schauenden Knopf.

Aber jetzt wird die Zelle nicht hervorgehoben.

Wie kann ich das beheben?

Ich habe den Code für ein anderes benutzerdefiniertes drawRect bereit, wenn die Zelle gedrückt wird.

<code>- (void)drawRect:(CGRect)rect
{
    //// General Declarations
    CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
    CGContextRef context = UIGraphicsGetCurrentContext();

    //// Color Declarations
    UIColor* red = [UIColor colorWithRed: 1 green: 0 blue: 0 alpha: 1];
    CGFloat redRGBA[4];
    [red getRed: &redRGBA[0] green: &redRGBA[1] blue: &redRGBA[2] alpha: &redRGBA[3]];

    UIColor* darkRed = [UIColor colorWithRed: (redRGBA[0] * 0.8) green: (redRGBA[1] * 0.8) blue: (redRGBA[2] * 0.8) alpha: (redRGBA[3] * 0.8 + 0.2)];
    UIColor* lightRed = [UIColor colorWithRed: (redRGBA[0] * 0.8 + 0.2) green: (redRGBA[1] * 0.8 + 0.2) blue: (redRGBA[2] * 0.8 + 0.2) alpha: (redRGBA[3] * 0.8 + 0.2)];

    //// Gradient Declarations
    NSArray* redGradientColors = [NSArray arrayWithObjects: 
                                  (id)darkRed.CGColor, 
                                  (id)lightRed.CGColor, nil];
    CGFloat redGradientLocations[] = {0, 1};
    CGGradientRef redGradient = CGGradientCreateWithColors(colorSpace, (__bridge CFArrayRef)redGradientColors, redGradientLocations);

    //// Shadow Declarations
    CGColorRef shadow = [UIColor lightGrayColor].CGColor;
    CGSize shadowOffset = CGSizeMake(0, -0);
    CGFloat shadowBlurRadius = 1;
    CGColorRef shadow2 = [UIColor blackColor].CGColor;
    CGSize shadow2Offset = CGSizeMake(0, -0);
    CGFloat shadow2BlurRadius = 2;


    //// Rounded Rectangle Drawing
    UIBezierPath* roundedRectanglePath = [UIBezierPath bezierPathWithRoundedRect: CGRectMake(35, 5, 250, 50) cornerRadius: 6];
    CGContextSaveGState(context);
    CGContextSetShadowWithColor(context, shadow2Offset, shadow2BlurRadius, shadow2);
    CGContextSetFillColorWithColor(context, shadow2);
    [roundedRectanglePath fill];
    [roundedRectanglePath addClip];
    CGContextDrawLinearGradient(context, redGradient, CGPointMake(160, 55), CGPointMake(160, 5), 0);

    ////// Rounded Rectangle Inner Shadow
    CGRect roundedRectangleBorderRect = CGRectInset([roundedRectanglePath bounds], -shadowBlurRadius, -shadowBlurRadius);
    roundedRectangleBorderRect = CGRectOffset(roundedRectangleBorderRect, -shadowOffset.width, -shadowOffset.height);
    roundedRectangleBorderRect = CGRectInset(CGRectUnion(roundedRectangleBorderRect, [roundedRectanglePath bounds]), -1, -1);

    UIBezierPath* roundedRectangleNegativePath = [UIBezierPath bezierPathWithRect: roundedRectangleBorderRect];
    [roundedRectangleNegativePath appendPath: roundedRectanglePath];
    roundedRectangleNegativePath.usesEvenOddFillRule = YES;

    CGContextSaveGState(context);
    {
        CGFloat xOffset = shadowOffset.width + round(roundedRectangleBorderRect.size.width);
        CGFloat yOffset = shadowOffset.height;
        CGContextSetShadowWithColor(context,
                                    CGSizeMake(xOffset + copysign(0.1, xOffset), yOffset + copysign(0.1, yOffset)),
                                    shadowBlurRadius,
                                    shadow);

        [roundedRectanglePath addClip];
        CGAffineTransform transform = CGAffineTransformMakeTranslation(-round(roundedRectangleBorderRect.size.width), 0);
        [roundedRectangleNegativePath applyTransform: transform];
        [[UIColor grayColor] setFill];
        [roundedRectangleNegativePath fill];
    }
    CGContextRestoreGState(context);

    CGContextRestoreGState(context);

    [[UIColor blackColor] setStroke];
    roundedRectanglePath.lineWidth = 1;
    [roundedRectanglePath stroke];

    //// Cleanup
    CGGradientRelease(redGradient);
    CGColorSpaceRelease(colorSpace);
}
</code>