文件下载到手机

loadVideoWithUrl(url: string) {

this.dialogId=DialogHelper.showLoadingDialog()

// 使用request下载图片

http.createHttp().request(url,

{

method: http.RequestMethod.GET,

connectTimeout: 60000,

readTimeout: 60000,

expectDataType: 2,

async (error: BusinessError, data: http.HttpResponse) => {

DialogHelper.closeDialog(this.dialogId)

if (error) {

console.error(`http reqeust failed with. Code: ${error.code}, message: ${error.message}`);

} else {

if (HttpConstants.SUCCESS_CODE === data.responseCode) {

let videoBuffer: ArrayBuffer = data.result as ArrayBuffer;

try {

let uris = url.split('/')//-------http://192.168.1.243/2025/03/05/b037b1a863e9444589b21a0482d3f1e0.pdf

let atten=uris[uris.length-1].split('.')[uris[uris.length-1].split('.').length-1]//文件后缀名

let name=uris[uris.length-1].split('.')[0]//文件名不带后缀民

let uri: string = '';

// 请确保 getContext(this) 返回结果为UIAbilityContext

let context = getContext(this) as common.Context;

const documentViewPicker = new picker.DocumentViewPicker(context);

const documentSaveOptions = new picker.DocumentSaveOptions();

documentSaveOptions.pickerMode = picker.DocumentPickerMode.DOWNLOAD;

documentViewPicker.save(documentSaveOptions ).then((documentSaveResult: Array<string>) => {

uri = documentSaveResult[0];

console.info('documentViewPicker.save succeed and uri is:' + uri);

const testFilePath = new fileUri.FileUri(uri + '/【虎翅云】'+(name)+'-附件.'+atten).path;

const file = fs.openSync(testFilePath, fs.OpenMode.CREATE | fs.OpenMode.READ_WRITE);

fs.writeSync(file.fd, videoBuffer);

fs.closeSync(file.fd);

ToastUtil.showToast('已保存至手机下载目录下');

})

} catch (error) {

console.error("error is " + JSON.stringify(error))

}

} else {

console.error("error occurred when image downloaded!")

}

})

}