首先,建立一個繼承與UIButton的類

.h檔案中

#import <UIKit/UIKit.h>

@interface BlockButton : UIButton
//生命屬性
@property (nonatomic, copy) void (^block)(UIButton *);
//新增帶block的點選事件
- (void)addTapBlock:(void(^)(UIButton *button))block;

@end

.m檔案中

#import "BlockButton.h"

@implementation BlockButton


- (instancetype)init{
    self = [super init];
    if (self) {
        [self addTarget:self action:@selector(buttonAction:) forControlEvents:UIControlEventTouchUpInside];
    }
    return self;
}

//實現點選方法
- (void)addTapBlock:(void (^)(UIButton *))block{
    self.block = block;
    [self addTarget:self action:@selector(buttonAction:) forControlEvents:UIControlEventTouchUpInside];
}

- (void)buttonAction:(UIButton *)button{
    if (self.block) {
        self.block(button);
    }
}

- (void)setBlock:(void (^)(UIButton *))block{
    _block = block;
     [self addTarget:self action:@selector(buttonAction:) forControlEvents:UIControlEventTouchUpInside];
}


@end
 

用法:

BlockButton *blockButton = [BlockButton buttonWithType:UIButtonTypeSystem];
    [blockButton addTapBlock:^(UIButton *button) {
        //在這裡處理button的點選事件
    }];