iOS开发封装带有Button的UIView控件，使用target-action模式给button添加点击事件

封装的BaseView的.h文件

#import <UIKit/UIKit.h>

@interface BaseView : UIView

-(void)addTarget:target action:(SEL)action;

@end

封装的BaseView的.m 文件

#import "BaseView.h"

@interface BaseView ()

@property (nonatomic, strong, nullable) UIButton *button;
@property (nonatomic, weak) id target;
@property (nonatomic, assign) SEL action;

@end

@implementation BaseView

- (instancetype)initWithFrame:(CGRect)frame {
    self = [super initWithFrame:frame];
    if (self) {
        self.button = [UIButton buttonWithType:(UIButtonTypeCustom)];
        self.button.frame = CGRectMake(0, 0, 100, 100);
        self.button.backgroundColor = [UIColor blackColor];
        [self addSubview:self.button];
        [self.button addTarget:self action:@selector(buttonAction) forControlEvents:(UIControlEventTouchUpInside)];
    }
    return self;
}

- (void)buttonAction {
    // 执行action
    [self.target performSelector:self.action withObject:self afterDelay:0];
}

// target-action回调
- (void)addTarget:(id)target action:(SEL)action {
    self.target = target;
    self.action = action;
}

在viewController中使用BaseView

#import "ViewController.h"
#import "BaseView.h"

@interface ViewController ()

@property (nonatomic, strong, nullable) BaseView *baseView;

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    
    self.baseView = [[BaseView alloc] init];
    self.baseView.frame = self.view.frame;
    [self.view addSubview:self.baseView];
    [self.baseView addTarget:self action:@selector(buttonAction)];
}

- (void)buttonAction {
    NSLog(@"呵呵呵");
}

@end