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//
//  RedButton.m
//  Hit实际例子
//
//  Created by Jason on 2019/3/12.
//  Copyright © 2019 友邦创新资讯. All rights reserved.
//#import "RedButton.h"@implementation RedButton- (void)touchesMoved:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event {UITouch *touch = [touches anyObject];//获取上一次坐标点CGPoint preP = [touch previousLocationInView:self];//获取现在坐标CGPoint cur = [touch locationInView:self];CGFloat offsetX = cur.x - preP.x;CGFloat offsetY = cur.y - preP.y;self.transform = CGAffineTransformTranslate(self.transform, offsetX, offsetY);
}- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event {CGPoint blueBtnPoint = [self convertPoint:point toView:self.blueBtn];if ([self.blueBtn pointInside:blueBtnPoint withEvent:event]) {return self.blueBtn;}return [super hitTest:point withEvent:event];
}
@end
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//
//  ViewController.m
//  Hit实际例子
//
//  Created by Jason on 2019/3/12.
//  Copyright © 2019 友邦创新资讯. All rights reserved.
//#import "ViewController.h"
#import "RedButton.h"@interface ViewController ()@end@implementation ViewController- (void)viewDidLoad {[super viewDidLoad];// Do any additional setup after loading the view, typically from a nib.
}
- (IBAction)clickButton:(RedButton *)sender {UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom];[btn setImage:[UIImage imageNamed:@"对话框"] forState:UIControlStateNormal];[btn setImage:[UIImage imageNamed:@"小孩"] forState:UIControlStateHighlighted];btn.frame = CGRectMake(100, -100, 200, 100);sender.blueBtn = btn;[sender addSubview:btn];
}@end复制代码