DownloadTask.abort

解释：中断下载任务

方法参数

无

示例 

在开发者工具中打开

图片示例

代码示例

<view class="wrap">
    <view class="card-area">
        <button bind:tap="downloadFile" type="primary" loading="{{loading}}" hover-stop-propagation="true">点击向服务器发起下载请求</button>
        <button bind:tap="abortDownloadTask" type="primary" loading="{{loading}}" hover-stop-propagation="true" disabled="{{disabled}}">点击断掉前后端链接</button>
    </view>
</view>

Page({
    data: {
        disabled: true
    },
    downloadFile() {
        this.setData({ disabled: false})
        const downloadTask = swan.downloadFile({
            url: 'https://smartprogram.baidu.com/docs/img/file-simple.pdf',
            header: {
                'content-type': 'application/json'
            },
            success: res =>{
                console.log(res.tempFilePath);
                swan.showToast({
                    title: '下载成功',
                    icon: 'none'
                });
            },
            fail: err => {
                swan.showToast({
                    title: '下载失败',
                    icon: 'none'
                });
                console.log('错误码：' + err.errCode);
                console.log('错误信息：' + err.errMsg);
            }
        });
        this.downloadTask = downloadTask;
    },
    abortDownloadTask() {
        swan.showModal({
            title: 'title',
            content: '已断掉'
        });
        this.downloadTask.abort();
    }
});