javascript - e.stopPropagation();阻止事件冒泡的方法不起作用了,烦大侠看一下是怎么回事?
黄舟
黄舟 2017-04-11 11:46:25
0
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这个列表有两个点击事件,点击列表,会跳转到一个详情页面;点击列表中的图片,会弹出一个图片的预览,但是不再跳转。
现在的情况是,图片预览这个点击事件不起作用了。一点图片就跳转。怎么解决这个问题?
点击事件都被触发,就是预览图片时有问题

//点击cell
$('.js_container').on('click','.doctor-problem-list',function(){
    var item = $(this).attr('data-item');
    if(item) item = JSON.parse(item);
    
    var dialogId = item.dialogId;
    var dialogState = item.dialogState;
    
    //判断跳转位置
    if(dialogState == '0') {
        window.location.href = 'doctor_ask_problem.html?dialogId=' + dialogId;
    } else if(dialogState == '1') {
        window.location.href = 'doctor_problem_stay_evaluate.html?dialogId=' + dialogId;
    } else if(dialogState == '2') {
        window.location.href = 'doctor_problem_has_end.html?dialogId=' + dialogId;
    } else if(dialogState == '3') {
        window.location.href = 'doctor_problem_already_evaluate.html?dialogId=' + dialogId;
    } else if(dialogState == '5') {
        window.location.href = 'doctor_problem_stay_evaluate.html?dialogId=' + dialogId;
    }
})
//点击图片
$('.js_container').on('click','.weui-jiaj-doctor-img',function(e){
    e.stopPropagation();
    
    var item = $(this).attr('data-img');
    if(item) item = JSON.parse(item);
    
    var imgUrl = item.imgUrl;
    weui.gallery(p_img);
    $('.weui-gallery__del').remove();
    $('.weui-gallery span').html('');
})

下面是解析出来的HTML结构:

<p class="weui-cell_access doctor-problem-list panel-2" data-id="problemList" data-item="{&quot;dialogId&quot;:&quot;35b9b3521f5045c191b375d8b13b6856&quot;,&quot;dialogState&quot;:0}">
                                    <p class="weui-jiaj-panel">
                                        <p class="weui-jiaj-cell" style="border-bottom: 1px solid #e5e5e5;">
                                            <ul class="weui-media-box__info" style="margin-top: 0;">
                                                <li class="weui-media-box__info__meta">
                                                    <img src="../img/user/patient-header.png" class="weui-media-box__img user-header">
                                                </li>
                                                <li class="weui-media-box__info__meta user-name"></li>
                                                <li class="weui-media-box__info__meta weui-media-box__info__meta_extra user-age">23岁</li>
                                                <li class="weui-media-box__info__meta weui-media-box__info__meta_extra">
                                                    <img src="../img/doctor/man-icon.png" class="weui-media-box__img usr-sex">
                                                </li>
                                            </ul>
                                            <ul class="weui-media-box__info continue-ask" style="margin-top: 0;">
                                                <li class="weui-media-box__info__meta user-problem">
                                                    <span>还剩</span>
                                                    <span class="user-problem-time">47</span>
                                                    <span>小时</span>
                                                </li>
                                            </ul>
                                        </p>
                                        <p class="weui-media-box weui-media-box_text">
                                            <p class="weui-jiaj-problem__desc user-des">4444444444444444444444</p>
                                            <!--问题图片-->
                                            <p class="weui-jiaj-question-img-list problem-img"><img class="weui-jiaj-doctor-img img-20" src="http://7xtfon.com1.z0.glb.clouddn.com/E2B47DFB-BA3E-42A4-80F8-1A32F175BAD6?imageslim&amp;e=1486371709&amp;token=Ah0MrGmdD0mrtScDjidLFu9DP4s9PirBdQ6SUTzS:Rr0tSyY919APZkJjEewC5A9auAY=&amp;imageMogr2/gravity/Center/crop/300x300" data-img="{&quot;thumbnailUrl&quot;:&quot;http://7xtfon.com1.z0.glb.clouddn.com/00C1D5AF-3369-4482-BB3C-E47073420CC0?imageslim&amp;e=1486371709&amp;token=Ah0MrGmdD0mrtScDjidLFu9DP4s9PirBdQ6SUTzS:4_kWR1agSrDa_KcZuhcenhILX8I=&amp;imageMogr2/gravity/Center/crop/300x300&quot;,&quot;imgUrl&quot;:&quot;http://7xtfon.com1.z0.glb.clouddn.com/00C1D5AF-3369-4482-BB3C-E47073420CC0?imageslim&amp;e=1486371709&amp;token=Ah0MrGmdD0mrtScDjidLFu9DP4s9PirBdQ6SUTzS:4_kWR1agSrDa_KcZuhcenhILX8I=&quot;}"><img class="weui-jiaj-doctor-img img-21" src="http://7xtfon.com1.z0.glb.clouddn.com/4FA02EA5-F936-409B-8ADD-552415317151?imageslim&amp;e=1486371709&amp;token=Ah0MrGmdD0mrtScDjidLFu9DP4s9PirBdQ6SUTzS:rOBCxOAf9DSn-8tXqbglvNfTW60=&amp;imageMogr2/gravity/Center/crop/300x300" data-img="{&quot;thumbnailUrl&quot;:&quot;http://7xtfon.com1.z0.glb.clouddn.com/00C1D5AF-3369-4482-BB3C-E47073420CC0?imageslim&amp;e=1486371709&amp;token=Ah0MrGmdD0mrtScDjidLFu9DP4s9PirBdQ6SUTzS:4_kWR1agSrDa_KcZuhcenhILX8I=&amp;imageMogr2/gravity/Center/crop/300x300&quot;,&quot;imgUrl&quot;:&quot;http://7xtfon.com1.z0.glb.clouddn.com/00C1D5AF-3369-4482-BB3C-E47073420CC0?imageslim&amp;e=1486371709&amp;token=Ah0MrGmdD0mrtScDjidLFu9DP4s9PirBdQ6SUTzS:4_kWR1agSrDa_KcZuhcenhILX8I=&quot;}"><img class="weui-jiaj-doctor-img img-22" src="http://7xtfon.com1.z0.glb.clouddn.com/00C1D5AF-3369-4482-BB3C-E47073420CC0?imageslim&amp;e=1486371709&amp;token=Ah0MrGmdD0mrtScDjidLFu9DP4s9PirBdQ6SUTzS:4_kWR1agSrDa_KcZuhcenhILX8I=&amp;imageMogr2/gravity/Center/crop/300x300"></p>
                                        </p>
                                    </p>
                                </p>
黄舟
黄舟

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membalas semua(5)
左手右手慢动作

使用了个笨办法,在循环所有图片时,给每个图片添加一个:

imgContainer.addClass('img-' + i + a);

把要预览的图片地址,做为自定义属性添加到这个img上:

$('.img-' + i + a).attr('img-src',p_img);

在点击这个图片时,把这个自定义属性的src地址取出来:

var img_src = this.getAttribute('img-src');

全部代码:

//问题图片
                        for(var a = 0 ; a < user_p_img.length; a++){
                            var imgContainer = imgDom.clone();
                            var p_thumbnail = user_p_img[a].thumbnailUrl;
                            var p_img = user_p_img[a].imgUrl;
                            console.log('每一张图片地址是多少:' + p_img);
                            
                            imgContainer.addClass('img-' + i + a);
                            if(p_thumbnail != null){
                                imgContainer.attr('src',p_thumbnail);
                            }
                            
                            //添加到图片容器
                            panel.find('.problem-img').append(imgContainer);
                            //给当前的img添加自定义属性 img-src,并给这个属性赋值为这个图片的原始地址
                            $('.img-' + i + a).attr('img-src',p_img);
                            
                            //点击图片预览
                            $('.img-' + i + a).on('click',function(e){
                                e.stopPropagation();
                                //this.getAttribute  从当前dom节 点中取出它的属性,这个属性就是当前图片的url地址
                                var img_src = this.getAttribute('img-src');
                                //预览这个图片
                                weui.gallery(img_src);
                                $('.weui-gallery__del').remove();
                                //去掉span中的字符串
                                $('.weui-gallery span').html('');
                            })
                        }

//以上方法虽然有效,但是如果更改了DOM节点,或是HTML结构变更,这个方法就不起作用了。下面是我更改之后的方法。

/给每个图片添加自定义属性,把要预览的图片地址绑定在这个图片上/

temp_img.find('.doctor-problem-img').attr('imgURL', JSON.stringify(imgs[j]));

/点击这个图片的class .doctor-problem-img,通过给这个事件绑定“阻止事件捕获方法e.stopImmediatePropagation();”,很好的控制事件冒泡,有效阻止另一个点击事件的触发/

//问题图片预览
$('.js_container').on('click','.doctor-problem-img',function(e){
    e.stopImmediatePropagation();
    var item = $(this).attr('imgURL');
    if(item) item = JSON.parse(item);
    
    var imgUrl = item.imgUrl;
    weui.gallery(imgUrl);
    $('.weui-gallery__del').remove();
    $('.weui-gallery span').html('');
})
Ty80

你使用了代理的方式来绑定时间!

两个事件回调函数都绑在了 .js_container 元素上,在鼠标点击 .weui-jiaj-doctor-img 的时候,因为没有直接在这个元素上绑定事件回调函数,所以会冒泡到 .js_container , .js_container 在此处绑定了两个 click 回调函数,jQuery 并不保证两个回调函数的执行先后顺序,但是这个顺序并不重要,因为无论什么顺序都会执行第一个回调函数,然后跳转。

Peter_Zhu

http://runjs.cn/code/pfvyt819
点击图片没跳转啊

洪涛

你虽然阻止了事件冒泡但是没有阻止事件捕获,图片的点击事件应该加上event.stopImmediatePropagation();

刘奇

addEventListener来做吧,通过判断e的target来做出相应的操作。

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