#
whycq
2024-04-20 39e850b22f0528414f9101475ebd197a6c40d9f0
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<template>    
    <view class='pages'>            
        <view class='father_view'> 
            <view class='son_view'> 
              <view class="title-bg">需要转换的文本:</view>
              <textarea class="textarea-bg" v-model="text1" @blur="inputText"  placeholder="请在这里输入" /> 
            </view>
        </view>
        
        <!-- 二维码 -->
        <view class="qr-box">
            <canvas canvas-id="qrcode" v-show="qrShow" style="width: 300rpx;margin: 0 auto;"/>
        </view>        
            
        <button @click='btn'>生成二维码</button>                
    </view>        
</template>
 
<script>
    import uQRCode from '@/static/js/uqrcode.js' //引入uqrcode.js
    export default {
        data() {
            return {
                qrShow: false,                
                text1:''
            }
        },
                
        methods: {    
            //*获取文本框内容*//
            inputText:function (e) {
                this.text1 = e.detail.value    
            },
        
            //*按钮*//
            btn: function () {                                        
                if (this.text1 == '' ) {
                    uni.showToast({  //显示对话框
                        title: "请输入文本",
                        icon: 'none',
                        duration: 1000,
                    })
                } else {
                    this.qrFun(this.text1) //调用二维码方法
                }
            },
            
            //**生成二维码**//
            qrFun: function(text) {
                this.qrShow = true
                uQRCode.make({
                    canvasId: 'qrcode',
                    componentInstance: this,
                    text: text,
                    size: 150,
                    margin: 0,
                    backgroundColor: '#ffffff',
                    foregroundColor: '#000000',
                    fileType: 'jpg',
                    errorCorrectLevel: uQRCode.errorCorrectLevel.H,
                    success: res => {}
                })
            }
        }
    }
</script>
 
<style>    
    .pages {
        width: 98%;
        margin: auto;
        overflow: hidden;
    }    
    
    /* 多行文本 */
    textarea {
        width: 98%;
        height: 250rpx;
        margin-left: 10rpx;
        margin-right: 10rpx;
        margin-top: 10rpx;
    }
    
    .textarea-bg {
        width: 94%;
        border-style: solid;
        border-color: #ff007f;
        font-size: 32rpx;
    }
    
    button {
        width: 80%;
        margin-top: 180rpx;
        background-color: #ffaa00;
    }
    
    .qr-box {
        width: 400rpx;
        height: 460rpx;
        margin: 0 auto;
        margin-top: 20rpx;
    }
</style>