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64 lines
1.3 KiB
64 lines
1.3 KiB
4 years ago
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<template>
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<view>
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<page-head :title="title"></page-head>
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<view class="uni-padding-wrap uni-common-mt">
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<view v-if="imageSrc" class="image-container">
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<image class="img" :src="imageSrc" mode="center" />
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</view>
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<block v-else style="margin-top: 50px;">
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<view class="uni-hello-text">
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点击按钮下载服务端示例图片（下载网络文件到本地临时目录）
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</view>
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<view class="uni-btn-v">
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<button type="primary" @tap="downloadImage">下载</button>
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</view>
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</block>
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</view>
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</view>
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</template>
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<script>
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export default {
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data() {
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return {
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title: 'downloadFile',
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imageSrc: ''
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}
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},
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onUnload() {
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this.imageSrc = '';
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},
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methods: {
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downloadImage: function () {
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uni.showLoading({
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title:'下载中'
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})
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var self = this
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uni.downloadFile({
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url: "https://img-cdn-qiniu.dcloud.net.cn/uniapp/images/uni@2x.png",
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success: (res) => {
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console.log('downloadFile success, res is', res)
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self.imageSrc = res.tempFilePath;
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uni.hideLoading();
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},
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fail: (err) => {
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console.log('downloadFile fail, err is:', err)
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}
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})
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}
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}
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}
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</script>
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<style>
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.img {
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width: 500rpx;
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height: 500rpx;
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margin: 0 auto;
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}
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.image-container {
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display: flex;
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justify-content: center;
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align-items: center;
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}
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</style>
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