99 lines
2.1 KiB
JavaScript
99 lines
2.1 KiB
JavaScript
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/**
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* 预览图片，并且长按保存
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*
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*/
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export function previewImageAndSave(images, index) {
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uni.previewImage({ // 预览图片 图片路径必须是一个数组 => ["http://192.168.100.251:8970/6_1597822634094.png"]
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current: index,
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urls: images,
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longPressActions: { //长按保存图片到相册
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itemList: ['保存图片'],
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success: (data) => {
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uni.downloadFile({
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url:images[data.index],
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success(res){
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let url = res.tempFilePath
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uni.saveImageToPhotosAlbum({
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filePath:url,
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success() {
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uni.showToast({
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title:'保存成功',
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icon:"none"
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})
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},
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fail(err) {
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uni.showToast({
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title:'保存失败',
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icon:"none"
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})
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}
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})
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}
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})
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},
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fail: (err) => {
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}
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}
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});
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}
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/**
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* 显示消息提示框
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* @param content 提示的标题
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*/
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export function toast(content) {
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uni.showToast({
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icon: 'none',
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title: content
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})
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}
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/**
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* 显示模态弹窗
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* @param content 提示的标题
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*/
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export function showConfirm(content) {
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return new Promise((resolve, reject) => {
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uni.showModal({
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title: '提示',
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content: content,
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cancelText: '取消',
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confirmText: '确定',
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success: function(res) {
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resolve(res)
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}
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})
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})
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}
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/**
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* 参数处理
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* @param params 参数
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*/
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export function tansParams(params) {
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let result = ''
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for (const propName of Object.keys(params)) {
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const value = params[propName]
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var part = encodeURIComponent(propName) + "="
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if (value !== null && value !== "" && typeof (value) !== "undefined") {
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if (typeof value === 'object') {
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for (const key of Object.keys(value)) {
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if (value[key] !== null && value[key] !== "" && typeof (value[key]) !== 'undefined') {
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let params = propName + '[' + key + ']'
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var subPart = encodeURIComponent(params) + "="
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result += subPart + encodeURIComponent(value[key]) + "&"
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}
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}
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} else {
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result += part + encodeURIComponent(value) + "&"
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}
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}
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}
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return result
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} |