uniapp-shikongwang/pages/bill/bill.vue

<template>
	<view>
		<button class='zfbtn m_l' @tap='formSubmit()'>
			分享
		</button>
		<button class='zfbtn m_l' @tap='saveAvatar()'>
			保存头像
		</button>
		
		
		<image :src="info.avatar" mode="aspectFill"></image>
		
		<tki-qrcode v-if="info.avatar" ref="qrcode" @result="qrR" :val="checkArea" :size="115" unit="px" background="#fff"
			foreground="#000" pdground="#000" :onval="true" :loadMake="true" :icon="info.avatar" />

		<tki-qrcode v-else ref="qrcode" @result="qrR" :val="checkArea" :size="115" unit="px" background="#fff"
			foreground="#000" pdground="#000" :onval="true" :loadMake="true" :icon="require('@/static/images/system/payfail.png')" />

		<view class="canvas-box">
			<canvas style="width: 375px;height: 667px;position:fixed;top:9999px" canvas-id="mycanvas" />
		</view>

		<view class='imagePathBox' v-if="maskHidden == true && imagePath" @click="maskHidden = false ">
			<image :src="imagePath" class='shengcheng' mode="aspectFill"></image>
			<button class='baocun' @click.stop="saveBill()">保存相册，分享到朋友圈</button>
		</view>
	</view>
</template>

<script>
	import tkiQrcode from "tki-qrcode"; // 二维码生成器
	export default {
		components: {
			tkiQrcode
		},
		data() {
			return {
				base64Img: '',
				checkArea: 'Cannot find module',
				inputValue: "",
				maskHidden: false,
				name: "kk",
				info: {
					avatar: '',
					nickname: '',
					id: '',
					tel: '',
					tags: []
				},
				showLogin: true,
				imagePath: '',
				
				userToken: ''
			}
		},
		methods: {
			saveAvatar() {
				var that = this
				console.log(that.info.avatar)
				wx.saveImageToPhotosAlbum({
					filePath: that.info.avatar,
					success(res) {
						wx.showModal({
							content: '图片已保存到相册，赶紧晒一下吧~',
							showCancel: false,
							confirmText: '好的',
							confirmColor: '#333',
							success: function(res) {
								if (res.confirm) {
									console.log('用户点击确定');
									that.maskHidden = false
								}
							},
							fail: function(res) {
								that.maskHidden = false
								console.log(res)
							}
						})
					},
					fail(err) {
						console.log(err)
					}
				})
			},
			qrR(data) {
				this.base64Img = data;
				console.log('base64',this.base64Img)
			},
			verifyUserInfo() {
				let userInfo = uni.getStorageSync('userinfo') || {};
				if (!userInfo.id || !userInfo.nickname || !userInfo.avatar) {
					if (this.showLogin) {
						this.showLogin = false;
						this.$url('/pages/login/index?type=userinfo');
					} else {
						this.showLogin = true;
						this.$url('/pages/index/index', {
							type: 'switch'
						});
					}
				}
			},
			getData() {	
				let userinfo = uni.getStorageSync('userinfo') || {};
				if (userinfo) {
					this.info = userinfo
					console.log('用户数据缓存',this.info)
				} else {
					this.$http(this.API.API_USER_CENTER).then(res => {
						this.info = res.data;
						console.log('用户数据接口',this.info)
					})
				}
			},
			createNewImg() {
				var that = this;
				var context = wx.createCanvasContext('mycanvas');
				var path = "../../static/images/poster-1.jpg";
				context.drawImage(path, 0, 0, 375, 667);
				//绘制二维码
				context.drawImage(that.base64Img, 24, 530,120, 120);
				//绘制名字
				// context.setFontSize(24);
				// context.setFillStyle('#fff');
				// context.setTextAlign('center');
				// context.fillText(name, 34, 620);
				context.stroke();
				context.draw();
				//将生成好的图片保存到本地，需要延迟一会，绘制期间耗时
				setTimeout(function() {
					wx.canvasToTempFilePath({
						canvasId: 'mycanvas',
						success: function(res) {
							that.imagePath = res.tempFilePath;
							if(that.imagePath) {
								that.canvasHidden = true
								that.maskHidden = true
							}
							console.log('海报生成成功')
							console.log(res)
							console.log('图片链接', that.imagePath)
						},
						fail: function(res) {
							console.log(res);
						}
					});
				}, 200);
			},
			saveBill() {
				var that = this
				wx.saveImageToPhotosAlbum({
					filePath: that.imagePath,
					success(res) {
						wx.showModal({
							content: '图片已保存到相册，赶紧晒一下吧~',
							showCancel: false,
							confirmText: '好的',
							confirmColor: '#333',
							success: function(res) {
								if (res.confirm) {
									console.log('用户点击确定');
									that.maskHidden = false
								}
							},
							fail: function(res) {
								that.maskHidden = false
							}
						})
					}
				})
			},
			formSubmit() {
				var that = this;
				wx.showToast({
					title: '生成海报中...',
					icon: 'loading',
					duration: 1000
				});
				wx.hideToast()
				that.createNewImg()
			}
		},
		onLoad(options) {
			this.qrcode = 'dadaa'

			this.verifyUserInfo();
			this.getData();
		}

	}
</script>

<style>
	.bgImg {
		display: block;
		width: 100%;
		height: 366rpx;
	}

	.mine {
		display: block;
		text-align: center;
		color: #333;
		margin-top: 44rpx;
	}

	.code {
		display: block;
		text-align: center;
		color: #333;
		font-size: 76rpx;
		font-weight: bold;
		margin-top: 30rpx;
	}

	.who {
		display: block;
		margin-top: 80rpx;
		font-size: 32rpx;
		color: #333;
		text-align: center;
	}

	.inputBox {
		text-align: center;
		margin-top: 44rpx;
	}

	.input {
		text-align: center;
		width: 440rpx;
		height: 88rpx;
		border-radius: 44rpx;
		background: #f5f5f5;
		font-size: 32rpx;
		display: inline-block;
	}

	.btn {
		width: 160rpx;
		height: 88rpx;
		border-radius: 44rpx;
		background: linear-gradient(90deg, rgba(255, 226, 0, 1), rgba(255, 200, 11, 1));
		box-shadow: 0px 4px 8px 0px rgba(255, 200, 11, 0.5);
		color: #333;
		font-size: 32rpx;
		display: inline-block;
		line-height: 88rpx;
		margin-left: 40rpx;
	}

	button[class="btn"]::after {
		border: 0;
	}

	.tishi {
		display: block;
		text-align: center;
		color: #999;
		margin-top: 30rpx;
	}

	.shareText {
		display: block;
		text-align: center;
		color: #333;
		font-size: 28rpx;
		margin-top: 100rpx;
	}

	.imgBox {
		text-align: center;
		width: 100%;
		margin-top: 60rpx;
		padding-bottom: 120rpx;
	}

	.img {
		display: inline-block;
		width: 100%;
		height: 100%;
	}

	.m_l {
		margin-left: 180rpx;
	}

	.zfbtn {
		display: inline-block;
		width: 120rpx;
		height: 120rpx;
		border-radius: 50%;
		background: transparent;
		outline: none;
		border: 0;
		padding: 0;
	}

	button[class="zfbtn"]::after {
		border: 0;
	}

	button[class="zfbtn m_l"]::after {
		border: 0;
	}

	.imagePathBox {
		width: 100%;
		height: 100%;
		background: rgba(0, 0, 0, 0.7);
		position: fixed;
		top: 0;
		left: 0;
		right: 0;
		bottom: 0;
		z-index: 10;
	}

	.shengcheng {
		width: 80%;
		height: 80%;
		position: fixed;
		top: 50rpx;
		left: 50%;
		margin-left: -40%;
		z-index: 10;
	}

	.baocun {
		display: block;
		width: 80%;
		height: 80rpx;
		padding: 0;
		line-height: 80rpx;
		text-align: center;
		position: fixed;
		bottom: 50rpx;
		left: 10%;
		background: #ffe200;
		color: #333;
		font-size: 32rpx;
		border-radius: 44rpx;
	}

	button[class="baocun"]::after {
		border: 0;
	}
</style>
}
</style>