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| // components/w-swiper/w-swiper.js
Component({
/**
* 组件的属性列表
*/
properties: {
images: {
type: Array,
value: []
}
},
/**
* 组件的初始数据
*/
data: {
//所有图片的高度
imgheights: [],
//图片宽度
imgwidth: 750,
//默认
current: 0
},
/**
* 组件的方法列表
*/
methods: {
savePic(e) {
const $this = this
const imgUrl = e.currentTarget.dataset['url'];
wx.showActionSheet({
itemList: ['保存到手机'],
success(res) {
console.log(res.tapIndex)
if (res.tapIndex === 0) {
$this.saveImage(imgUrl)
}
},
fail(res) {
console.log(res.errMsg)
}
})
},
saveImage(imgUrl) {
wx.showLoading({
title: '保存中...',
mask: true,
});
wx.downloadFile({
url: imgUrl,
success: function (res) {
if (res.statusCode === 200) {
let img = res.tempFilePath;
wx.saveImageToPhotosAlbum({
filePath: img,
success(res) {
wx.showToast({
title: '保存成功',
icon: 'success',
duration: 2000
});
},
fail(res) {
wx.showToast({
title: '保存失败',
icon: 'success',
duration: 2000
});
}
});
}
wx.hideLoading()
}
});
},
imageLoad: function (e) { //获取图片真实宽度
var imgwidth = e.detail.width,
imgheight = e.detail.height,
//宽高比
ratio = imgwidth / imgheight;
console.log(imgwidth, imgheight)
//计算的高度值
var viewHeight = 750 / ratio;
var imgheight = viewHeight;
var imgheights = this.data.imgheights;
//把每一张图片的对应的高度记录到数组里
imgheights[e.target.dataset.id] = imgheight;
this.setData({
imgheights: imgheights
})
},
bindchange: function (e) {
// console.log(e.detail.current)
this.setData({
current: e.detail.current
})
},
}
})
|
