实现思路：
话不多说，上代码：
wxml代码
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<view class="weui-cells">
<view class="weui-cell">
<view class="weui-cell__bd">
<view class="weui-uploader">
<view class="weui-uploader__hd">
<view class="weui-uploader__title">图片上传</view>
<view class="weui-uploader__info">{{files.length}} / 9</view>
</view>
<view class="weui-uploader__bd">
<view class="weui-uploader__files" id="uploaderFiles">
<block wx:for="{{files}}" wx:key="*this">
<view class="weui-uploader__file" bindtap="previewImage" bindlongpress="deleteImage" id="{{item}}" data-index="{{index}}">
<image class="weui-uploader__img" src="{{item}}" mode="aspectFill"/>
</view>
</block>
</view>
<view wx:if="{{files.length < 9}}" class="weui-uploader__input-box" >
<view class="weui-uploader__input" bindtap="chooseImage"></view>
</view>
</view>
</view>
</view>
</view></view>
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js代码
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Page({
data: {
files: []
},
chooseImage: function(e) {
var that = this; var images = that.data.files;
wx.chooseImage({
count: 9 - images.length,
sizeType: [‘original‘, ‘compressed‘],
sourceType: [‘album‘, ‘camera‘],
success: function(res) {
that.setData({
files: that.data.files.concat(res.tempFilePaths)
});
}
})
},
previewImage: function(e) {
wx.previewImage({
current: e.currentTarget.id,
urls: this.data.files
})
},
deleteImage: function(e) {
var that = this; var images = that.data.files; var index = e.currentTarget.dataset.index;
wx.showModal({
title: ‘系统提醒‘,
content: ‘确定要删除此图片吗？‘,
success: function(res) {
if (res.confirm) {
images.splice(index, 1);
} else if (res.cancel) { return false;
}
that.setData({
files: images
});
}
})
}
})
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原文：https://www.cnblogs.com/xiaomeng95/p/13045239.html
