如何初始化這個從UIButton繼承的自定義類？

我無法弄清楚我應該如何初始化這個自定義類，代碼不是我的，而且我對Obj-C來說還是比較新的，所以我對速度很慢。如何初始化這個從UIButton繼承的自定義類？

PFTintedButton.h

#import <UIKit/UIKit.h> 
@class CALayer; 

typedef enum 
{ 
    PFTintedButtonRenderTypeStandard, 
    PFTintedButtonRenderTypeCandy, 
    PFTintedButtonRenderTypeOpal, 
} PFTintedButtonRenderType; 


@interface PFTintedButton : UIButton 
{ 
@private 
    UIColor * tint; 
    CGFloat cornerRadius; 
    PFTintedButtonRenderType renderType; 

    UIImage * stretchImage; 
    CALayer * glowLayer; 

    UILabel * subLabel; 

    BOOL customShadow; 
    BOOL customTitleColor; 
} 

@property(nonatomic, retain) UIColor * tint; 
@property(nonatomic, assign) CGFloat cornerRadius; 
@property(nonatomic, assign) PFTintedButtonRenderType renderType; 
@property(nonatomic, readonly) UILabel * subLabel; 



@end

PFTintedButton.m摘錄

#import "PFTintedButton.h" 
#import "PFDrawTools.h" 
#import "UIColor+PFExtensions.h" 
#import <QuartzCore/QuartzCore.h> 

#define glowRadius  30 

@interface PFTintedButton() 
-(void) createBackgroundImage; 
-(void) createGlowLayer; 
@end 


@implementation PFTintedButton 

-(void) dealloc 
{ 
    SafeRelease(tint); 
    SafeRelease(stretchImage); 
    SafeRelease(subLabel); 
    SafeRelease(glowLayer); 

    [NSObject cancelPreviousPerformRequestsWithTarget: self selector: @selector(createGlowLayer) object: nil]; 
    [NSObject cancelPreviousPerformRequestsWithTarget: self selector: @selector(renderGlowLayerOnMainThread) object: nil]; 

    [super dealloc]; 
} 

-(void) initCommon 
{ 
    cornerRadius = 6; 
} 

-(id) initWithFrame: (CGRect) frame 
{ 
    if(self = [super initWithFrame: frame]) 
    { 
     [self initCommon]; 
    } 

    return self; 
} 

-(id) initWithCoder: (NSCoder *) coder 
{ 
    if(self = [super initWithCoder: coder]) 
    { 
     // this is such a hack but there's no other way to determine if the title label's settings 
     // have been modified in IB. 
     NSDictionary * dic = [coder decodeObjectForKey: @"UIButtonStatefulContent"]; 
     NSObject * st = [dic objectForKey: [NSNumber numberWithInt: UIControlStateNormal]]; 
     NSString * bc = [st description]; 

     customTitleColor = [bc rangeOfString: @"TitleColor = UIDeviceRGBColorSpace 0.196078 0.309804 0.521569 1"].location == NSNotFound; 
     customShadow = [bc rangeOfString: @"ShadowColor = UIDeviceRGBColorSpace 0.5 0.5 0.5 1"].location == NSNotFound; 

     [self initCommon]; 

     //[super setBackgroundColor: [[UIColor redColor] colorWithAlphaComponent: .5]]; 
    } 

    return self; 
}

我只是包括實施一個小一點，the full source can be found here.As a part of this repository通過Paul-Alexander。

我初始化這樣的：

PFTintedButton* buttony = [PFTintedButton buttonWithType:UIButtonTypeCustom]; 
[buttony setTint:[UIColor redColor]]; 
[buttony setBackgroundColor:[UIColor redColor]]; 
[buttony setRenderType:PFTintedButtonRenderTypeCandy]; 
[buttony setTitle:@"Title for Button" forState:UIControlStateNormal];

而且它在PFDrawTools打嗝，好像色調變量是零。那是因爲我錯誤地初始化了它嗎？有沒有人有過這個成功？

來源

2011-06-20 wentz__

這似乎明確地處理initWithFrame，我會嘗試。

PFTintedButton *buttony = [[[PFTintedButton alloc] initWithFrame:<some_frame>] autorelease];

來源

2011-06-20 21:28:39 hundreth

試試這個：

PFTintedButton* buttony = [[PFTintedButton alloc] initWithFrame:CGRectMake(x, y, width, height)];

來源

2011-06-20 21:28:20 Caleb

有你在PFTintedButton類中定義buttonWithType:初始化方法？

來源

2011-06-20 21:32:25

如何初始化這個從UIButton繼承的自定義類？

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