iOS block处理button的点击事件

一. 代码

• .h文件内容

  #import <UIKit/UIKit.h>

    typedef void (^ButtonBlock)(UIButton *);
  
    @interface BlockButton : UIButton
  
    - (void)addTapBlock:(ButtonBlock)block;
  
    @end

• .m文件内容

  #import "BlockButton.h"

    @interface BlockButton()
  
    @property(nonatomic,copy) ButtonBlock block;
  
    @end
  
    @implementation BlockButton
  
    - (void)addTapBlock:(ButtonBlock)block
    {
        _block = block;
        [self addTarget:self action:@selector(buttonAction:) forControlEvents:UIControlEventTouchUpInside];
    }
  
    - (void)buttonAction:(UIButton *)button
    {
        _block(button);
    }
  
    @end