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  • 按钮在执行frame动画的时候怎么响应触发事件?

    按钮在执行frame动画的时候怎么响应触发事件?

    代码中效果(请注意,我并没有点击到按钮,而是点击到按钮的终点frame值处):

    对应的代码:

    //
    //  ViewController.m
    //  TapButton
    //
    //  Created by YouXianMing on 14/12/7.
    //  Copyright (c) 2014年 YouXianMing. All rights reserved.
    //
    
    #import "ViewController.h"
    
    @interface ViewController ()
    
    @end
    
    @implementation ViewController
    
    - (void)viewDidLoad {
        [super viewDidLoad];
    
        // 初始化按钮
        UIButton *button       = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 100, 100)];
        button.backgroundColor = [UIColor redColor];
        [button addTarget:self
                   action:@selector(buttonEvent:)
         forControlEvents:UIControlEventTouchUpInside];
        [self.view addSubview:button];
        
        // 执行动画
        [UIView animateWithDuration:10.f
                              delay:0
                            options:UIViewAnimationOptionCurveLinear | UIViewAnimationOptionAllowUserInteraction
                         animations:^{
            button.frame = CGRectMake(0, 468, 100, 100);
        } completion:^(BOOL finished) {
            
        }];
    }
    
    /**
     *  按钮事件
     *
     *  @param button 按钮事件
     */
    - (void)buttonEvent:(UIButton *)button {
        NSLog(@"YouXianMing");
    }
    
    @end

    修改过后的效果:

    源码:

    //
    //  ViewController.m
    //  TapButton
    //
    //  Created by YouXianMing on 14/12/7.
    //  Copyright (c) 2014年 YouXianMing. All rights reserved.
    //
    
    #import "ViewController.h"
    #import "ChildView.h"
    
    @interface ViewController ()
    
    {
    
        ChildView *tmpView;
    
    }
    
    @end
    
    @implementation ViewController
    
    - (void)viewDidLoad {
        [super viewDidLoad];
    
        // 初始化按钮
        tmpView                        = [[ChildView alloc] initWithFrame:CGRectMake(0, 0, 100, 100)];
        tmpView.backgroundColor        = [UIColor redColor];
        tmpView.userInteractionEnabled = NO; // 让self.view获取点击事件(穿透自身)
        [self.view addSubview:tmpView];
    
        
        // 执行动画
        [UIView animateWithDuration:10.f
                              delay:0
                            options:UIViewAnimationOptionCurveLinear | UIViewAnimationOptionAllowUserInteraction
                         animations:^{
            tmpView.frame = CGRectMake(0, 468, 100, 100);
        } completion:^(BOOL finished) {
            
        }];
    }
    
    - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
        // 获取点击点
        CGPoint point = [[touches anyObject] locationInView:self.view];
        
        // 获取tmpView的layer当前的位置
        CGPoint presentationPosition = [[tmpView.layer presentationLayer] position];
        
        // 判断位置,让tmpView接受点击事件
        if (point.x > presentationPosition.x - 50 && point.x < presentationPosition.x + 50 &&
            point.y > presentationPosition.y - 50 && point.y < presentationPosition.y + 50) {
            [tmpView touchesBegan:touches withEvent:event];
        }
    }
    
    
    @end

    ChildView.h 与 ChildView.m

    //
    //  ChildView.h
    //  TapButton
    //
    //  Created by YouXianMing on 14/12/7.
    //  Copyright (c) 2014年 YouXianMing. All rights reserved.
    //
    
    #import <UIKit/UIKit.h>
    
    @interface ChildView : UIView
    
    @end
    //
    //  ChildView.m
    //  TapButton
    //
    //  Created by YouXianMing on 14/12/7.
    //  Copyright (c) 2014年 YouXianMing. All rights reserved.
    //
    
    #import "ChildView.h"
    
    @implementation ChildView
    
    - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
        NSLog(@"获取点击事件");
    }
    
    @end

    关键性的两步:

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  • 原文地址:https://www.cnblogs.com/YouXianMing/p/4149103.html
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