dxh/pages/form/donaSuccess1.vue

<template>
	<view class="content">
		<view class="box">
			<view class="music">
				<view class="player playing" :class="playing?'none':'keepgo'" @click.stop="play">
					<image src="../../static/img/music2.png" style="width: 68rpx;height: 68rpx;" :animation="animationData"></image>
				</view>
			</view>
			<canvas v-if="showcanvas" id="qrShareBox" canvas-id="qrShareBox" class="tki-qrcode-canvas" />
			<image class="imgbox" v-else :src="img"></image>
		</view>
	</view>
</template>

<script>
	import {
			weixindata
		} from '@/utils/wxAuthorized.js';
	export default {
		data() {
			return {
				money:'',
				url:'',
				img:'',
				showcanvas:true,
				loading: true, //是否载入图片中
				size: 180,
				ratio: 1, //页面比例用于计算
				canHeight: '',
				canWeidth: '',
				playing: true,
				current: {
					src: '../../static/audio/xx.mp3',
				},
				rotateIndex: '',
				animation: {},
				animationData: {},
				audioAction: {
					method: 'pause'
				},
				ran: -1,
				isStop: true,
				demo: 0
			}
		},
		onReady() {
			let query = uni.createSelectorQuery();
			let obj = this
			console.log(999,obj.money)
			// 获取页面比例
			query
				.select('.box')
				.fields({
						size: true
					},
					e => {
						console.log('获取页面比例', e)
						// 保存比例
						this.ratio = e.width / 750;
					}
				)
				.exec();
			// 获取画布宽高信息
			query
				.select('#qrShareBox')
				.fields({
						size: true
					},
					e => {
						console.log('获取画布宽高信息', e)
						obj.canHeight = e.height;
						obj.canWeidth = e.width;
					}
				)
				.exec();
			let ctxBg = '/index/static/img/thanks.png'; //画布背景
			let src = '/index/static/img/erweima.jpg' // 二维码

			let context = uni.createCanvasContext('qrShareBox');
			// 插入背景图片
			console.log('插入背景图片', ctxBg, 0, 0, obj.canWeidth, obj.canHeight)
			context.drawImage(ctxBg, 0, 0, obj.canWeidth, obj.canHeight);

			const codeSize = obj.size * obj.ratio; //计算二维码大小
			const codeX = ((750 - obj.size) * obj.ratio) / 2; //二维码所在x轴位置
			const codeY = 950 * obj.ratio; //二维码所在y轴位置

			const codeBoxColor = '#FFFFFF'; //包裹框颜色
			const codeBoxWidht = 0; //包裹边框宽度
			const codeBoxSize = (codeBoxWidht / 2) * obj.ratio; //计算二维码白色包裹框大小
			const codeBoxX = codeX - codeBoxSize; //包裹框初始X轴
			const codeBoxY = codeY - codeBoxSize; //包裹框初始Y轴
			const codeBoxEnd = codeSize + codeBoxWidht * obj.ratio; //计算包裹框大小
			const fontTop = codeY + codeBoxEnd + (codeBoxWidht + 20) * obj.ratio; //文字距离上边距高度
			const fontSize = 24 * obj.ratio; //文字大小
			const fontText = ''; //文字内容
			const fontLeft = (codeSize - fontSize * fontText.length) / 2 + codeX; //文字左侧距离

			// // 插入文字
			context.setFontSize(28)
			context.setFillStyle('#d5493b')
			// context.fillText('感谢信', ((750 - obj.size) * obj.ratio) / 2, 260 * obj.ratio)
			context.setFontSize(30 * obj.ratio)
		// context.fillText('感谢信', ((750 - obj.size) * obj.ratio) / 2, 260 * obj.ratio)
		context.setFontSize(30 * obj.ratio)
	context.fillText('尊敬的捐赠人：', (40 * obj.ratio), 380 * obj.ratio)
	context.fillText('衷心感谢您对武汉市东西湖区红十字事业的信', (100 * obj.ratio), 440 * obj.ratio)
	context.fillText('任与支持！我们已收到您的捐款', (40 * obj.ratio), 495 * obj.ratio)
	// 画横线
	context.moveTo(465 * obj.ratio, 500 * obj.ratio)
	context.lineTo(580 * obj.ratio, 500 * obj.ratio)
	context.stroke()
	context.fillText('￥' + obj.money , (475 * obj.ratio), 492 * obj.ratio)
	context.fillText('元。我们', (585* obj.ratio), 495 * obj.ratio)
	context.fillText('承诺，绝不辜负大家的信任，遵照您的意愿，将捐', (40 * obj.ratio), 550 * obj.ratio)
	context.fillText('款全部用于相关救助项目。 您的善举将给受助人带', (40 * obj.ratio), 605* obj.ratio)
	context.fillText('去温暖！', (40 * obj.ratio), 660 * obj.ratio)
	context.fillText('爱心无界，情义无价。谨以此信表达谢意，我', (100 * obj.ratio), 710 * obj.ratio)
	
	context.fillText('们因您更有力量，因您倍感温暖！', (40 * obj.ratio), 765 * obj.ratio)
	// context.fillText('谨表谢意', (580 * obj.ratio), 680 * obj.ratio)
	context.fillText('武汉市东西湖区红十字会', (380 * obj.ratio), 910 * obj.ratio)
			
			// 插入二维码
			// console.log(codeX, codeY, codeSize, 999)
			context.drawImage(src, codeX, codeY, codeSize, codeSize);

			// 生成
			context.draw(false, (e) => {
				uni.canvasToTempFilePath({
					x: 0,
					y: 0,
					width: obj.canWeidth,
					height: obj.canHeight,
					destWidth: obj.canWeidth,
					destHeight: obj.canHeight,
					canvasId: 'qrShareBox',
					success: function(res) {
						console.log(333, res)
						// 在H5平台下，tempFilePath 为 base64
						obj.showcanvas = false;
						obj.img = res.tempFilePath
					}
				})
			})
		},
		onShow() {
			var animation = uni.createAnimation()
			this.animation = animation
			if (this.isStop) {
				// 使用动画
				this.scaleAndScale()
				this.timer = setInterval(() => { //创建定时器,3秒执行异一次
					this.scaleAndScale()
					// console.log('每三秒执行一次 , 达到往复运动的效果')
				}, 1000)
			} else {
				this.noscaleAndScale()
			}
		},
		onLoad(option) {
			console.log(333,option)
			this.money = option.money
			this.IndexShare();
			this.ScanAudio(true)
		},
		onHide() { //在页面隐藏时也要清除定时器  
			if (this.timer) {
				// console.log('清除定时器-' + this.timer)
				clearInterval(this.timer)
			}
		},
		onUnload() { //在页面卸载时清除定时器 避免出现多个定时器连续创建动画
			if (this.timer) {
				console.log('清除定时器-' + this.timer)
				clearInterval(this.timer)
			}
		},
		methods: {
			// 分享
			IndexShare() {
				let obj = this;
				let money = obj.money
				let item = {
					link:  'http://dxhred.igxys.com/index/#/pages/form/donaSuccess1?money=' + obj.money,// 分享链接
					imgUrl: '/index/static/img/002.png',
					desc: '感谢信',
					title: '武汉市东西湖区红十字会',
					success: console.log('分享加载成功')
				};
				console.log('分享加',item)
				weixindata(item);
			},
			musicClick() {
				// if (this.isRoate) {
				// 	this.isRoate = false
				// 	this.stopScanAudio()
				// } else {
				// 	this.isRoate = true
				// 	this.ScanAudio()
				// }
			},
			play() {

				this.playing = !this.playing;
				this.ScanAudio(this.playing);
				if (this.playing == true) {
					this.timer = setInterval(() => { //创建定时器,3秒执行异一次
						this.scaleAndScale()
						console.log('每1秒执行一次')
					}, 1000)
				} else {
					clearInterval(this.timer)
				}
				// var music = uni.createInnerAudioContext();
				// music.src= "../../static/audio/xx.mp3"; //选择播放的音频
				//   music.onPause(); //暂停播放
				// 	console.log('暂停播放')
				// console.log('dianjizanting')
				// this.stopAudio()
				// this.playing = !this.playing; //背景音乐点击，暂停或继续
			},
			// 定义动画内容
			scaleAndScale() {
				// 定义动画内容
				// this.animation.scale(1.2, 1.2).step() //先放大1,2倍
				// this.animation.scale(1, 1).step() //缩小至原来的大小
				// 导出动画数据传递给data层
				// this.animationData = this.animation.export(); //每次执行导出动画时 会覆盖之前的动画
				this.animation.rotate(this.demo).step({
					duration: 1000
				})
				this.animationData = this.animation.export()
				this.demo += 360;
			},
			noscaleAndScale() {
				this.animation.rotate(0).step({
					duration: 1000
				})
				this.animationData = this.animation.export()
			},
			// ScanAudio(){
			// 	this.$api.music.play(); //执行播放
			// 				console.log('执行播放')
			// }
		}
	}
</script>

<style lang="scss">
	page {
		width: 100%;
		height: 100%;
	}

	.content {
		// background-color: pink;
		width: 100%;
		height: 100%;
		position: relative;

		.bgimg {
			width: 100%;
			height: 100%;

			// background-color: pink;
			image {
				width: 100%;
				height: 100%;
			}
		}

		.tki-qrcode-canvas {
			width: 750rpx;
			height: 1340rpx;
			margin: 0 auto;
			// background-color: pink;
		}

		.box {
			
			color: #FFFFFF;
			width: 100%;
			height: 100vh;
			// background-color: pink;


			.music {
				// width: 55rpx;
				// height: 55rpx;
				border-radius: 28rpx;
				// background-color: pink;
				position: absolute;
				left: 12rpx;
				top: 250rpx;
				z-index: 999;
			}

	

		
		}

	

		.keepgo {
			animation-play-state: paused;
		}
		.imgbox{
			height: 1340rpx;
			width:100%;
		}

	}
</style>