397 lines
9.7 KiB
Vue
397 lines
9.7 KiB
Vue
![]() |
<template>
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<view class="poster_page">
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<nav-bar title="海报"></nav-bar>
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<canvas canvas-id="poster" class="poster_canvas"></canvas>
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<swiper class="poster_swiper" previous-margin="110rpx" circular :current="swiperIndex" next-margin="110rpx" @change="onSwiperChange">
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<swiper-item v-for="(item, index) of promoteBgImgs" :key="index">
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<view class="poster_image" :class="{ active: swiperIndex == index }">
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<image class="poster_bg_image" :src="item" mode="widthFix"></image>
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<image class="poster_code_image" :src="promoteCodeImg" mode="aspectFit"></image>
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</view>
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</swiper-item>
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</swiper>
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<view class="share_save_box">
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<!-- #ifdef MP -->
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<button open-type="share">
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<image src="../../static/demo/ic_pic.png" mode="aspectFit"></image>
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<text>发给好友</text>
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</button>
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<!-- #endif -->
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<!-- #ifdef APP-PLUS -->
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<button @click="onAppShare">
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<image src="../../static/demo/ic_pic.png" mode="aspectFit"></image>
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<text>发给好友</text>
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</button>
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<!-- #endif -->
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<button class="onSave" @click="onSaveImg">
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<image src="../../static/demo/ic_weixin.png" mode="aspectFit"></image>
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<text>保存图片</text>
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</button>
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</view>
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<!-- #ifdef H5 -->
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<view class="h5_press_save" v-if="h5SaveImg" @click="h5SaveImg = ''">
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<image :src="h5SaveImg" mode="widthFix"></image>
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<button class="download">长按图片保存图片</button>
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</view>
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<!-- #endif -->
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</view>
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</template>
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<script>
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import { mapState, mapMutations } from 'vuex';
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let settingWritePhotosAlbum = false;
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export default {
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data() {
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return {
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nickName: '',
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promoteBgImgs: [
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"https://qn.kemean.cn/upload/202006/05/1591346203171zj5m2qkl.png",
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"https://qn.kemean.cn/upload/202006/05/1591346218311qsy0h9h7.png",
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"https://qn.kemean.cn/upload/202006/05/15913462289486a12js7d.png",
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],
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promoteCodeImg: "https://qn.kemean.cn/upload/202007/03/1593744239803mgajzyjk.png",
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swiperIndex: 0,
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posterImgs: [],
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shareInfo: {
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shareContent: "商家云系统,点击了解",
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shareImg: "http://qn.kemean.cn/upload/202004/08/15863540965488mlv1qgj.png",
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shareTitle: "商家云",
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shareUrl: "http://kemean.com/download/3jiayunbz/index.html"
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},
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h5SaveImg: ""
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};
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},
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//第一次加载
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onLoad(e) {
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},
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computed: {
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...mapState(["userInfo"])
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},
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//方法
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methods: {
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// 轮播图变化
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onSwiperChange(e) {
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this.swiperIndex = e.detail.current;
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},
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// 创建海报
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createPoster() {
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return new Promise((resolve, reject) => {
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if (this.posterImgs[this.swiperIndex]) {
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resolve(this.posterImgs[this.swiperIndex]);
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} else {
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uni.showLoading({
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title: '海报生成中'
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});
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const ctx = uni.createCanvasContext('poster');
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ctx.fillRect(0, 0, 375, 667);
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uni.downloadFile({
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url: this.promoteBgImgs[this.swiperIndex],
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success: res => {
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if (res.statusCode === 200) {
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ctx.drawImage(res.tempFilePath, 0, 0, 375, 667);
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uni.downloadFile({
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url: this.promoteCodeImg,
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success: res => {
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if (res.statusCode === 200) {
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ctx.drawImage(res.tempFilePath, 137.45, 504, 100.1, 100.1);
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ctx.draw(true, () => {
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// canvas画布转成图片并返回图片地址
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uni.canvasToTempFilePath({
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canvasId: 'poster',
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width: 375,
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height: 667,
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success: res => {
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if(this.posterImgs[this.swiperIndex]){
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this.posterImgs[this.swiperIndex].temporary = res.tempFilePath;
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}else{
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this.posterImgs[this.swiperIndex] = {};
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this.posterImgs[this.swiperIndex].temporary = res.tempFilePath;
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}
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resolve(res.tempFilePath);
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console.log(res.tempFilePath);
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},
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fail: () => {
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uni.hideLoading();
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reject();
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}
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});
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});
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} else {
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uni.hideLoading();
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uni.showToast({
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title: '海报制作失败,图片下载失败',
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icon: 'none'
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});
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}
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},
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fail: err => {
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uni.hideLoading();
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uni.showToast({
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title: '海报制作失败,图片下载失败',
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icon: 'none'
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});
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}
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});
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} else {
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uni.hideLoading();
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uni.showToast({
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title: '海报制作失败,图片下载失败',
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icon: 'none'
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});
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}
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},
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fail: err => {
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uni.hideLoading();
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uni.showToast({
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title: '海报制作失败,图片下载失败',
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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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// 保存图片
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async onSaveImg() {
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let imgUrl = "";
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if(this.posterImgs[this.swiperIndex] && this.posterImgs[this.swiperIndex].temporary){
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imgUrl = await this.posterImgs[this.swiperIndex].temporary;
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}else{
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imgUrl = await this.createPoster();
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}
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// #ifdef H5
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this.h5SaveImg = imgUrl;
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uni.hideLoading();
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// #endif
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// #ifdef MP-WEIXIN
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uni.showLoading({
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title: '海报下载中'
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});
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if (settingWritePhotosAlbum) {
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uni.getSetting({
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success: res => {
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if (res.authSetting['scope.writePhotosAlbum']) {
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uni.saveImageToPhotosAlbum({
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filePath: imgUrl,
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success: () => {
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uni.hideLoading();
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uni.showToast({
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title: '保存成功'
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});
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}
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});
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} else {
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uni.showModal({
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title: '提示',
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content: '请先在设置页面打开“保存相册”使用权限',
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confirmText: '去设置',
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cancelText: '算了',
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success: data => {
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if (data.confirm) {
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uni.hideLoading();
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uni.openSetting();
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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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} else {
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settingWritePhotosAlbum = true;
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uni.authorize({
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scope: 'scope.writePhotosAlbum',
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success: () => {
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uni.saveImageToPhotosAlbum({
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filePath: imgUrl,
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success: () => {
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uni.hideLoading();
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uni.showToast({
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title: '保存成功'
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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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// #endif
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// #ifdef APP-PLUS
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uni.showLoading({
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title: '海报下载中'
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});
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uni.saveImageToPhotosAlbum({
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filePath: imgUrl,
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success: () => {
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uni.hideLoading();
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uni.showToast({
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title: '保存成功'
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});
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}
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});
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// #endif
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},
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async onAppShare() {
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// let imgUrl = "";
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// if(this.posterImgs[this.swiperIndex] && this.posterImgs[this.swiperIndex].url){
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// imgUrl = this.posterImgs[this.swiperIndex].url;
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// } else if(this.posterImgs[this.swiperIndex] && this.posterImgs[this.swiperIndex].temporary){
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// let imgData = await this.$http.qnFileUpload([this.posterImgs[this.swiperIndex].temporary]);
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// imgUrl = imgData[0];
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// }else{
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// let data = await this.createPoster();
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// let imgData = await this.$http.qnFileUpload([data]);
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// imgUrl = imgData[0];
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// }
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// uni.hideLoading();
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uni.share({
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provider: 'weixin',
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scene: 'WXSceneSession',
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type: 0,
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title: this.shareInfo.shareTitle,
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href: this.shareInfo.shareUrl,
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summary: this.shareInfo.shareContent,
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imageUrl: this.shareInfo.shareImg,
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success: function(res) {
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console.log('success:' + JSON.stringify(res));
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},
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fail: function(err) {
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console.log('fail:' + JSON.stringify(err));
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}
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});
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}
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},
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//页面隐藏
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onHide() {},
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//页面卸载
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onUnload() {},
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//页面下来刷新
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onPullDownRefresh() {},
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//页面上拉触底
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onReachBottom() {},
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//用户点击分享
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onShareAppMessage(e) {
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let shareInfo = {
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path: this.$base.share.path,
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title: this.shareInfo.shareTitle,
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imageUrl: this.shareInfo.shareImg
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};
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if(this.userInfo.token){
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if (shareInfo.path.indexOf("?") >= 0) {
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shareInfo.path += "&recommendCode=" + this.userInfo.uid;
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} else {
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shareInfo.path += "?recommendCode=" + this.userInfo.uid;
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}
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}
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return shareInfo;
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}
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};
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</script>
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<style lang="scss" scoped>
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@import '@/style/mixin.scss';
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.poster_page {
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min-height: 100vh;
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background-color: #fff;
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display: flex;
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align-items: center;
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}
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.poster_canvas {
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width: 750rpx;
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height: 1334rpx;
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position: fixed;
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top: -10000rpx;
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left: 0rpx;
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}
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.poster_swiper {
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height: 934rpx;
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width: 100%;
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swiper-item {
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box-sizing: border-box;
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display: flex;
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align-items: center;
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.poster_image {
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width: 100%;
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height: 100%;
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transform: scale(0.88);
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transition: all 0.4s;
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position: relative;
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display: flex;
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align-items: flex-end;
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overflow: hidden;
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&.active {
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transform: scale(1);
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}
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.poster_bg_image {
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width: 100%;
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height: 100%;
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}
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.poster_code_image {
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position: absolute;
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bottom: 100rpx;
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width: 140rpx;
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height: 140rpx;
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left: 50%;
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transform: translateX(-50%);
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}
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}
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}
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}
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.share_save_box {
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position: fixed;
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bottom: calc((100vh - 934rpx - 240rpx) / 4);
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left: 0;
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z-index: 6;
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width: 100%;
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display: flex;
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justify-content: space-around;
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button {
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display: flex;
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flex-direction: column;
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align-items: center;
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background-color: transparent;
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image {
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width: 60rpx;
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height: 60rpx;
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}
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text {
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font-size: 24rpx;
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color: #333333;
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}
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}
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}
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.h5_press_save {
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background-color: #000;
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position: fixed;
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top: 0;
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left: 0;
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width: 100%;
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height: 100%;
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display: flex;
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align-items: center;
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z-index: 100;
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image {
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width: 100%;
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}
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.download {
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font-size: 24rpx;
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color: #ffffff;
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background-color: rgba(0,0,0,0.5);
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display: flex;
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align-items: center;
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flex-direction: row;
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justify-content: center;
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position: absolute;
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padding: 5rpx 30rpx;
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border-radius: 40rpx;
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bottom: 30rpx;
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left: 50%;
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transform: translateX(-50%);
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&:before {
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content: '';
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@include bis('../../static/demo/icon_download.png');
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width: 24rpx;
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height: 24rpx;
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margin-right: 15rpx;
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}
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}
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}
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</style>
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