download-file.vue
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<template>
<view>
<page-head :title="title"></page-head>
<view class="uni-padding-wrap uni-common-mt">
<view v-if="imageSrc" class="image-container">
<image class="img" :src="imageSrc" mode="center" />
</view>
<block v-else style="margin-top: 50px;">
<view class="uni-hello-text">
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）
</view>
<view class="uni-btn-v">
<button type="primary" @tap="downloadImage">下载</button>
</view>
</block>
</view>
</view>
</template>
<script>
export default {
data() {
return {
title: 'downloadFile',
imageSrc: ''
}
},
onUnload() {
this.imageSrc = '';
},
methods: {
downloadImage: function () {
uni.showLoading({
title:'下载中'
})
var self = this
uni.downloadFile({
url: "https://img-cdn-qiniu.dcloud.net.cn/uniapp/images/uni@2x.png",
success: (res) => {
console.log('downloadFile success, res is', res)
self.imageSrc = res.tempFilePath;
uni.hideLoading();
},
fail: (err) => {
console.log('downloadFile fail, err is:', err)
}
})
}
}
}
</script>
<style>
.img {
width: 500rpx;
height: 500rpx;
margin: 0 auto;
}
.image-container {
display: flex;
justify-content: center;
align-items: center;
}
</style>