UILabel子类 [英] UILabel subclass

问题描述

我知道这是一个新手问题，但我是一个新手，所以这里：

I know that this is a newbie question but I am a newbie so here goes:

我希望在我的应用程序中使用Chalkduster字体很多标签等），并试图子类化UILabel来实现这一点。我在Default.h中有以下：

I wish to use Chalkduster font quite a lot throughout my app (buttons, labels etc) and have tried subclassing UILabel to achieve this. I have the following in Default.h:

#import <UIKit/UIKit.h>

@interface Default : UILabel
{
UILabel *theLabel;
}

@property (nonatomic, strong) IBOutlet UILabel *theLabel;

@end

and this in my .m:

#import "Default.h"

@implementation Default

- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
    // Initialization code


UIFont *custom = [[UIFont alloc] init];

custom = [UIFont fontWithName:@"Chalkduster" size:18];

self.font = custom;


NSLog(@"h");
}
return self;
}

@end

界面构建器和运行，我没有看到Chalkduster字体。我会感谢一个手，得到这个设置，因为我相信它会救我很多时间。
Cheers。

When I change the class in interface builder and run, I'm not seeing the Chalkduster font. I'd appreciate a hand in getting this set up as I believe it will save me a lot of time. Cheers.

推荐答案

需要解决的一些问题：

1）你正在混淆默认 正在标签和默认 包含标签。要子类化，删除你的类中的属性，并改变 self ，而不是 theLabel code> if（self）{节）。

1) You're mixing up the idea of Default being a label and Default containing a label. To subclass, get rid of the property inside your class and make your changes to self rather than theLabel (inside the if (self) { section).

2）无条件 不会被执行...我惊讶的是，编译器没有抱怨这些语句。

2) Anything you code after an unconditional return isn't going to get executed...and I'm surprised the compiler didn't complain about those statements.

编辑：。

3）如果从xib或storyboard加载，初始化由 initWithCoder：而不是 initWithFrame：，所以：

3) If you're loading from a xib or storyboard, the initialization is done by initWithCoder: instead of initWithFrame:, so:

- (id)initWithCoder:(NSCoder *)coder {
    self = [super initWithCoder:coder];
    if (self) {
        self.font = [UIFont fontWithName:@"Chalkduster" size:18];
    }
    return self;
}

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