wxShare() {
              
                downPdf({
                    flag: 'user',
                    pernr: this.userinFor.pernr
                }).then(res => {
                    this.shareUrl = res[1].data;
                    let url = ` ${this.$baseUrl}/images/userinformation/${this.shareUrl}`;
                    var dtask = plus.downloader.createDownload(
                        url, {
                            filename: '_doc/pdf/' + this.shareUrl
                        },
                        function(d, status) {
                            // 下载完成
                            if (status == 200) {
                                FileShare.render({
                                        type: 'SYSTEM', //QQ为QQ，微信为WX，系统默认是SYSTEM，不填写默认SYSTEM
                                        filePath: plus.io.convertLocalFileSystemURL(d.filename)
                                    },
                                    result => {}
                                );
                            } else {
                                'Download failed: ' + status;
                            }
                        }
                    );
                    dtask.start();
                  
                });
            },

 

<template>
	<view>
		<page-head :title="title"></page-head>
		<view class="uni-padding-wrap"> 
			<view class="uni-title">分享内容</view>
			<view class="uni-textarea">
				<textarea class="textarea" v-model="shareText" />
			</view>
			<view class="uni-title">分享图片：</view>
			<view class="uni-uploader" style="padding:15upx; background:#FFF;">
				<view class="uni-uploader__input-box" v-if="!image" @tap="chooseImage"></view>
				<image class="uni-uploader__img" v-if="image" :src="image"></image>
			</view>
			<!-- #ifdef APP-PLUS -->
			<view class="uni-title">分享类型：</view>
			<view>
				<radio-group @change="radioChange">
					<label class="radio">
						<radio value="1" checked="true"/>文字
					</label>
					<label class="radio">
						<radio value="2" />图片
					</label>
					<label class="radio">
						<radio value="0" />图文
					</label>
					<label class="radio">
						<radio value="5" />小程序
					</label>
				</radio-group>
			</view>
			<view class="uni-btn-v uni-common-mt" v-if="providerList.length > 0">
				<block v-for="(value,index) in providerList" :key="index">
					<button type="primary" v-if="value" :disabled="shareType === 5 && value.name !== '分享到微信好友'" @tap="share(value)">{{value.name}}</button>
				</block>
			</view>
			<!-- #endif -->
			<!-- #ifdef MP-WEIXIN -->
			<view class="uni-btn-v uni-common-mt">
				<button type="primary" open-type="share">分享</button>
			</view>
			<!-- #endif -->
		</view>
	</view>
</template>
<script>
	export default {
		data() {
			return {
				title: 'share',
				shareText: 'uni-app可以同时发布成原生App、微信小程序、H5，邀请你一起体验！',
				href:"https://uniapp.dcloud.io",
				image: '',
				shareType:1,
				providerList: []
			}
		},
		onShareAppMessage() {
			return {
				title: "走在小程序的分享",
				path: '/pages/tabBar/component/component',
				imageUrl:this.image ? this.image : 'https://img-cdn-qiniu.dcloud.net.cn/uniapp/app/share-logo@3.png'
			}
		},
		onUnload:function(){
			this.shareText='uni-app可以同时发布成原生App、微信小程序、H5，邀请你一起体验！',
			this.href = "https://uniapp.dcloud.io",
			this.image='';
		},
		onLoad: function () {
			uni.getProvider({
				service: "share",
				success: (e) => {
					console.log("success", e);
					let data = []
					for (let i = 0; i < e.provider.length; i++) {
						switch (e.provider[i]) {
							case 'weixin':
								data.push({
									name: '分享到微信好友',
									id: 'weixin',
									sort:0
								})
								data.push({
									name: '分享到微信朋友圈',
									id: 'weixin',
									type:'WXSenceTimeline',
									sort:1
								})
								break;
							case 'sinaweibo':
								data.push({
									name: '分享到新浪微博',
									id: 'sinaweibo',
									sort:2
								})
								break;
							case 'qq':
								data.push({
									name: '分享到QQ',
									id: 'qq',
									sort:3
								})
								break;
							default:
								break;
						}
					}
					this.providerList = data.sort((x,y) => {
						return x.sort - y.sort
					});
				},
				fail: (e) => {
					console.log("获取登录通道失败", e);
					uni.showModal({
						content:"获取登录通道失败",
						showCancel:false
					})
				}
			});
		},
		methods: {
			async share(e) {
				console.log("分享通道:"+ e.id +"； 分享类型:" + this.shareType);
				
				if(!this.shareText && (this.shareType === 1 || this.shareType === 0)){
					uni.showModal({
						content:"分享内容不能为空",
						showCancel:false
					})
					return;
				}
				
				if(!this.image && (this.shareType === 2 || this.shareType === 0)){
					uni.showModal({
						content:"分享图片不能为空",
						showCancel:false
					})
					return;
				}
				
				let shareOPtions = {
					provider: e.id,
					scene: e.type && e.type === 'WXSenceTimeline' ? 'WXSenceTimeline' : "WXSceneSession", //WXSceneSession”分享到聊天界面，“WXSenceTimeline”分享到朋友圈，“WXSceneFavorite”分享到微信收藏     
					type: this.shareType,
					success: (e) => {
						console.log("success", e);
						uni.showModal({
							content: "分享成功",
							showCancel:false
						})
					},
					fail: (e) => {
						console.log("fail", e)
						uni.showModal({
							content: e.errMsg,
							showCancel:false
						})
					},
					complete:function(){
						console.log("分享操作结束!")
					}
				}
				
				switch (this.shareType){
					case 0:
						shareOPtions.summary = this.shareText;
						shareOPtions.imageUrl = this.image;
						shareOPtions.title = "欢迎体验uniapp";
						shareOPtions.href = "http://uniapp.dcloud.io";
						break;
					case 1:
						shareOPtions.summary = this.shareText;
						break;
					case 2:
						shareOPtions.imageUrl = this.image;
						break;
					case 5:
						shareOPtions.imageUrl = this.image ? this.image : 'https://img-cdn-qiniu.dcloud.net.cn/uniapp/app/share-logo@3.png'
						shareOPtions.title = "欢迎体验uniapp";
						shareOPtions.miniProgram = {
							id:"gh_33446d7f7a26",
							path:"/pages/tabBar/component/component",
							webUrl:"http://uniapp.dcloud.io",
							type:0
						};
						break;
					default:
						break;
				}
				
				if(shareOPtions.type === 0 && plus.os.name === 'iOS'){//如果是图文分享，且是ios平台，则压缩图片 
					shareOPtions.imageUrl = await this.compress();
				}
				if(shareOPtions.type === 1 && shareOPtions.provider === 'qq'){//如果是分享文字到qq，则必须加上href和title
					shareOPtions.href = "http://uniapp.dcloud.io";
					shareOPtions.title = "欢迎体验uniapp";
				}
				uni.share(shareOPtions);
			},
			radioChange(e){
				console.log("type:" + e.detail.value);
				this.shareType = parseInt(e.detail.value);
			},
			chooseImage() {
				uni.chooseImage({
					count: 1,
					sourceType: ['album', 'camera'],
					sizeType: ['compressed', 'original'],
					success: (res) => {
						this.image = res.tempFilePaths[0];
					}
				})
			},
			compress(){//压缩图片 图文分享要求分享图片大小不能超过20Kb
				console.log("开始压缩");
				let img = this.image;
				return new Promise((res) => {
					var localPath = plus.io.convertAbsoluteFileSystem(img.replace('file://', ''));
					console.log('after' + localPath);
					// 压缩size
					plus.io.resolveLocalFileSystemURL(localPath, (entry) => {
						entry.file((file) => {// 可通过entry对象操作图片 
							console.log("getFile:" + JSON.stringify(file));
							if(file.size > 20480) {// 压缩后size 大于20Kb
								plus.zip.compressImage({
									src: img,
									dst: img.replace('.jpg', '2222.jpg').replace('.JPG', '2222.JPG'),
									width: '10%',
									height: '10%',
									quality: 1,
									overwrite: true
								}, (event) => {
									console.log('success zip****' + event.size);
									let newImg = img.replace('.jpg', '2222.jpg').replace('.JPG', '2222.JPG');
									res(newImg);
								}, function(error) {
									uni.showModal({
										content:"分享图片太大,需要请重新选择图片!",
										showCancel:false
									})
								});
							}
						});
					}, (e) => {
						console.log("Resolve file URL failed: " + e.message);
						uni.showModal({
							content:"分享图片太大,需要请重新选择图片!",
							showCancel:false
						})
					});
				})
			}
		}
	}
</script>
 
<style>
 
</style>

uni-app分享
调用系统分享组件发送分享消息，不需要配置分享SDK
当中出现了图片，图片的优先级会大于文字。
uni.shareWithSystem({
type:"text",
summary: ‘补充文字‘,
href: ‘https://www.baidu.com/‘,
// imageUrl:"../../static/logo.png",
success(){
console.log(‘分享成功‘);
// 分享完成，请注意此时不一定是成功分享
},
fail(){
console.log(‘分享失败‘);
// 分享失败
}
})
多个图片分享
当中出现了图片，图片的优先级会大于文字。
不需要配置分享SDK
let msg={
type:‘image‘,
pictures:[‘../../static/logo.png‘]
}
plus.share.sendWithSystem(msg, function(){
console.log(‘分享成功‘);
}, function(e){
console.log(‘分享失败：‘+JSON.stringify(e));
});

 // 首页分享设置

      uni.showShareMenu({

                withShareTicket: true,

                menus: ['shareAppMessage', 'shareTimeline']

      })

或

 



1.分享当前界面给朋友


 onShareAppMessage(res) {

      return {

        title: '一叶车管家',

        path: '/pages/welcome/index'

      }

    },


2. 分享指定图片配置（app.vue下面设置分享制定图片并且地址为当前分享地址）


    onLaunch: function() {

         this.overShare()

     },

 

 

 methods: {

      //重写分享方法

      overShare: function () {

        //间接实现全局设置分享内容

        wx.onAppRoute(function (res) {

          //获取加载的页面

          let pages = getCurrentPages(),

            //获取当前页面的对象

            view = pages[pages.length - 1],

            data;

                    let route = view.$page.fullPath

          if (view) {

            data = view.data;

            if (!data.isOverShare) {

              data.isOverShare = true;

              view.onShareAppMessage = function () {

                //你的分享配置

                return {

                  title: '一叶管家',

                  path: route,

                  imageUrl: 'https://xxx.com/images/shareWhere.png'

                }

              }

            }

          }

        })

      }

    }