uni.downloadFile为什么只能下载一次，第二次不再执行此函数

分类：uni-app

uniapp

xiazai(url) {
const downloadTask = uni.downloadFile({
url: url,
success: (res) => {
if (res.statusCode === 200) {
}
let that = this;
uni.saveFile({
tempFilePath: res.tempFilePath,
success: function(red) {
that.luj = red.savedFilePath;
uni.saveVideoToPhotosAlbum({
filePath: that.luj,
success: function() {
}
});
uni.openDocument({
filePath: that.luj,
success: res => {
}
})
}
});
}
});

            downloadTask.onProgressUpdate((res) => {  
                this.loading = res.progress  
                console.log('下载进度' + res.progress);  
                console.log(this.loading)  
                if (res.progress == 100) {  
                    downloadTask.abort();  
                }  
                // console.log('已经下载的数据长度' + res.totalBytesWritten);  
                // console.log('预期需要下载的数据总长度' + res.totalBytesExpectedToWrite);  
            });  
        }

2020-05-20 10:25 负责人:无分享