微信小程序wx.previewImage预览图片实例详解

<span style="font-family:Comic Sans MS;font-size:18px;color:#333333;"><view class="container"> 
 <view wx:for="{{imgalist}}" wx:for-item="image" class="previewimg"> 
  <image src="{{image}}" data-src="{{image}}" bindtap="previewImage"></image> 
 </view> 
</view></span> 

<span style="font-family:Comic Sans MS;font-size:18px;color:#333333;">.container { 
 box-sizing:border-box; 
 padding:20px; 
} 
.previewimg{ 
 float:left; 
 width:45%; 
 height:200px; 
 margin:2%; 
} 
.previewimg image{ 
 width:100%; 
 height:100%; 
}</span> 

<span style="font-family:Comic Sans MS;font-size:18px;color:#333333;">var app = getApp() 
Page({ 
 data: { 
  imgalist:[ 'https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1496287851&di=0a26048f586b8521 
  93cb5026d60c4fad&imgtype=jpg&er=1&src=http%3A%2F%2Fpic.58pic.com%2F58pic%2F12%2F74%2F05%2F99C58PICYck.jpg', 
  'https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1495693185413&di=0d0acdebf0f532edd0fcdb7 
  6265623c5&imgtype=0&src=http%3A%2F%2Fimg1.3lian.com%2Fimg013%2Fv3%2F2%2Fd%2F61.jpg', 
  'https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1495693185413&di=55835ae37fdc95a317b03f28162c0 
  de1&imgtype=0&src=http%3A%2F%2Fimg4.duitang.com%2Fuploads%2Fitem%2F201307%2F12%2F20130712224237_nSjht.jpeg', 
  'https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1495693185410&di=e28cc03d2ae84130eabc2 
  6bf0fc7495f&imgtype=0&src=http%3A%2F%2Fpic36.photophoto.cn%2F20150814%2F0005018308986502_b.jpg' 
 ]}, 
 /** 
  * 预览图片 
  */ 
 previewImage: function (e) { 
  var current=e.target.dataset.src; 
  wx.previewImage({ 
   current: current, // 当前显示图片的http链接 
   urls: this.data.imgalist // 需要预览的图片http链接列表 
  }) 
 } 
})</span> 

<span style="font-family:Comic Sans MS;font-size:18px;color:#333333;">var app = getApp() 
Page({ 
 data: { 
  imgalist:[ '../uploads/a01.jpg', 
  '../uploads/a02.jpg', 
  '../uploads/a03.jpg', 
  '../uploads/foods.jpg' 
 ]}, 
 /** 
  * 预览图片 
  */ 
 previewImage: function (e) { 
  var current=e.target.dataset.src; 
  wx.previewImage({ 
   current: current, // 当前显示图片的http链接 
   urls: this.data.imgalist // 需要预览的图片http链接列表 
  }) 
 } 
}) 
</span>