我将UIButton子类化,我想要的是将按钮类型设置为Round Rect.
Button.h
@interface Button : UIButton {}
- (void)initialize;
@end
Button.m
@implementation Button
- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
[self initialize];
}
return self;
}
-(id)initWithCoder:(NSCoder *)aDecoder {
self = [super initWithCoder:aDecoder];
if(self){
[self initialize];
}
return self;
}
- (void)initialize
{
self.titleLabel.font = [UIFont systemFontOfSize:20];
self.titleLabel.textColor = [UIColor redColor];
self.titleLabel.textAlignment = UITextAlignmentCenter;
//[UIButton buttonWithType:UIButtonTypeRoundedRect];
}
@end
在这里我尝试[UIButton buttonWithType：UIButtonTypeRoundedRect],但它不工作.任何人都可以建议如何使其发挥作用？
我知道在许多以前的帖子中已经说过,SubBlassing UIButton是不推荐的,但事实上,在开发人员的文档中没有提到没有子类化它.
解决方法
您可能会发现CocoaBuilder的线程
How to subclass UIButton?的讨论有帮助,特别是
Jack Nutting’s suggestion to ignore the buttonType：
Note that this way the buttonType isn’t explicitly set to anything,which probably means that it’s UIButtonTypeCustom. The Docs don’t seem to actually specify that,but since that’s the 0 value in the enum,that’s likely what happens (and that seems to be the observable behavior as well)