[英]PaintCode doesn't work with the Storyboard
我购买了Paintcode,并在此示例中尝试了此示例 。
如果我使用笔尖,则可以使用,但使用情节提要时,它不起作用(它不会绘制自定义按钮)。 我知道要处理的代码很多,但是我相信有经验的人可以找到错误。
有4个文件:
SBButton.h
#import "SBButtonCustomizer.h"
@interface SBButton : SBButtonCustomizer
@property (retain) UIColor* buttonColor;
@property (retain) UIColor* buttonHighLightColor;
@property (retain) UIColor* titleColor;
@end
SBButton.m
@implementation SBButton
- (void)drawButtonHighlighted: (BOOL)isHighlighted{
//// General Declarations
CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
CGContextRef context = UIGraphicsGetCurrentContext();
//// Color Declarations
UIColor* iconShadow = [UIColor colorWithRed: 0 green: 0 blue: 0 alpha: 0.8];
UIColor* buttonColor = [UIColor colorWithRed: 0.18 green: 0.631 blue: 0 alpha: 1];
CGFloat buttonColorRGBA[4];
[buttonColor getRed: &buttonColorRGBA[0] green: &buttonColorRGBA[1] blue: &buttonColorRGBA[2] alpha: &buttonColorRGBA[3]];
UIColor* baseGradientBottomColor = [UIColor colorWithRed: (buttonColorRGBA[0] * 0.6) green: (buttonColorRGBA[1] * 0.6) blue: (buttonColorRGBA[2] * 0.6) alpha: (buttonColorRGBA[3] * 0.6 + 0.4)];
UIColor* upperShine = [UIColor colorWithRed: 0.948 green: 0.948 blue: 0.948 alpha: 0.82];
UIColor* topShine = [upperShine colorWithAlphaComponent: 0.5];
UIColor* bottomShine = [upperShine colorWithAlphaComponent: 0.1];
//// Gradient Declarations
NSArray* baseGradientColors = [NSArray arrayWithObjects:
(id)buttonColor.CGColor,
(id)baseGradientBottomColor.CGColor, nil];
CGFloat baseGradientLocations[] = {0, 1};
CGGradientRef baseGradient = CGGradientCreateWithColors(colorSpace, (CFArrayRef)baseGradientColors, baseGradientLocations);
NSArray* shineGradientColors = [NSArray arrayWithObjects:
(id)upperShine.CGColor,
(id)[UIColor colorWithRed: 0.948 green: 0.948 blue: 0.948 alpha: 0.66].CGColor,
(id)topShine.CGColor,
(id)[UIColor colorWithRed: 0.948 green: 0.948 blue: 0.948 alpha: 0.3].CGColor,
(id)bottomShine.CGColor, nil];
CGFloat shineGradientLocations[] = {0, 0.05, 0.09, 0.66, 1};
CGGradientRef shineGradient = CGGradientCreateWithColors(colorSpace, (CFArrayRef)shineGradientColors, shineGradientLocations);
//// Shadow Declarations
UIColor* buttonShadow = iconShadow;
CGSize buttonShadowOffset = CGSizeMake(0.1, 1.1);
CGFloat buttonShadowBlurRadius = 2;
//// Frames
CGRect frame = CGRectMake(0, 0, 229, 38);
//// Button
{
CGContextSaveGState(context);
CGContextSetAlpha(context, 0.75);
CGContextBeginTransparencyLayer(context, NULL);
//// ButtonRectangle Drawing
CGRect buttonRectangleRect = CGRectMake(CGRectGetMinX(frame) + 2, CGRectGetMinY(frame) + 1, CGRectGetWidth(frame) - 4, CGRectGetHeight(frame) - 4);
UIBezierPath* buttonRectanglePath = [UIBezierPath bezierPathWithRoundedRect: buttonRectangleRect cornerRadius: 7];
CGContextSaveGState(context);
CGContextSetShadowWithColor(context, buttonShadowOffset, buttonShadowBlurRadius, buttonShadow.CGColor);
CGContextBeginTransparencyLayer(context, NULL);
[buttonRectanglePath addClip];
CGContextDrawLinearGradient(context, baseGradient,
CGPointMake(CGRectGetMidX(buttonRectangleRect), CGRectGetMinY(buttonRectangleRect)),
CGPointMake(CGRectGetMidX(buttonRectangleRect), CGRectGetMaxY(buttonRectangleRect)),
0);
CGContextEndTransparencyLayer(context);
CGContextRestoreGState(context);
//// Rounded Rectangle Drawing
CGRect roundedRectangleRect = CGRectMake(CGRectGetMinX(frame) + 2, CGRectGetMinY(frame) + 1, CGRectGetWidth(frame) - 4, floor((CGRectGetHeight(frame) - 1) * 0.48649 + 0.5));
UIBezierPath* roundedRectanglePath = [UIBezierPath bezierPathWithRoundedRect: roundedRectangleRect cornerRadius: 7];
CGContextSaveGState(context);
[roundedRectanglePath addClip];
CGContextDrawLinearGradient(context, shineGradient,
CGPointMake(CGRectGetMidX(roundedRectangleRect), CGRectGetMinY(roundedRectangleRect)),
CGPointMake(CGRectGetMidX(roundedRectangleRect), CGRectGetMaxY(roundedRectangleRect)),
0);
CGContextRestoreGState(context);
CGContextEndTransparencyLayer(context);
CGContextRestoreGState(context);
}
//// Cleanup
CGGradientRelease(baseGradient);
CGGradientRelease(shineGradient);
CGColorSpaceRelease(colorSpace);
}
#pragma mark Overrides
- (void)drawOnState{
[self drawButtonHighlighted: YES];
}
- (void)drawOffState{
[self drawButtonHighlighted: NO];
}
@end
SBButtonCustomizer.h
#import <Foundation/Foundation.h>
@interface SBButtonCustomizer : NSObject
@property(retain) IBOutlet UIButton* customButton;
// These 3 should be overrided
- (CGSize)size;
- (void)drawOnState;
- (void)drawOffState;
@end
SBButtonCustomizer.m
#import "SBButtonCustomizer.h"
@interface SBButtonCustomizer ()
@property(retain) UIImage* onStateImage;
@property(retain) UIImage* offStateImage;
- (UIImage*)imageForSelector: (SEL)selector;
@end
@implementation SBButtonCustomizer
- (void)awakeFromNib{
[super awakeFromNib];
self.onStateImage = [[self imageForSelector: @selector(drawOnState)] resizableImageWithCapInsets: [self capInsets]];
self.offStateImage = [[self imageForSelector: @selector(drawOffState)] resizableImageWithCapInsets: [self capInsets]];
[self.customButton setBackgroundImage: self.onStateImage forState: UIControlStateNormal];
[self.customButton setBackgroundImage: self.offStateImage forState: UIControlStateHighlighted];
}
- (void)dealloc
{
[super dealloc];
self.onStateImage = nil;
self.offStateImage = nil;
self.customButton = nil;
}
- (UIImage*)imageForSelector: (SEL)selector
{
UIGraphicsBeginImageContextWithOptions(self.size, NO, 0.0f);
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Warc-performSelector-leaks"
[self performSelector: selector];
#pragma clang diagnostic pop
UIImage* result = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return result;
}
- (UIEdgeInsets)capInsets
{
return UIEdgeInsetsMake(0, 15, 0, 15);
}
- (CGSize)size
{
return self.customButton.bounds.size;
}
- (void)drawOnState
{
}
- (void)drawOffState
{
}
@end
我读了一些我不应该使用的地方
- (void)awakeFromNib
有故事板,但
initWithCoder
这可能吗?
我刚才遇到了这个问题,很容易解决了。 我认为SDK中肯定有一个错误,因为awakeFromNib应该在initWithCoder方法之后在ViewController中的对象上调用,但是按钮具有CGRectZero矩形。
本质上,这就是我为解决问题所做的事情。
在SBButtonCustomizer.m中,我将方法名称awakeFromNib更改为例如-(void) didLoad
并将其在SBButton.h中公开
在IB中的viewController中,我对SBButton对象做了一个出口,然后在viewDidLoad方法的末尾,我简单地调用了该对象的didLoad方法。
为我排序,希望对您有所帮助。
我不知道如何向Apple提交错误,因为我最近才注册开发者程序和CBATBH。
如它们在头文件中所述
// These 3 should be overrided
- (CGSize)size;
- (void)drawOnState;
- (void)drawOffState;
这三种方法都必须被覆盖。 否则,图形上下文为nil。
将此插入您的SBButton.m
- (CGSize)size
{
return CGSizeMake(48, 48);
}
并根据您的需要调整大小。
我改变了这条线
@interface SBButtonCustomizer : NSObject
进入这个
@interface SBButtonCustomizer : UIButton
因为我需要NSObject不提供的更多属性。 对我来说效果很好!
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.