Module: miot/host/file

//给定文件名后下载或者截图后被放到本地目录里, 在<Image/>等标签需要引用时, 使用{local:"filename"}的方式引入
const myfile = "testpicture.png"
Host.file.downloadFile("http://..../...png", myfile)
.then(res=>{
    const myimg = <Image source={{local:myfile}} ... />
    ...
})
.catch(err=>{...})

...
const myshotfile = "testshot.png"
Host.file.screenShot(myshotfile)
.then(res=>{
   const myshotpic = <Image source={{local:myshotfile}} ... />
   ...
});
...

Methods

(static) amapScreenShot(viewRef, imageName) → {Promise}

Parameters:

Example

const findNodeHandle = require('findNodeHandle');
const myMapViewRef = findNodeHandle(this.refs.myMapView);
const imageName = 'mapToShare.png';
let imageToShow = null;
Host.file.amapScreenShot(myMapViewRef, imageName).then(() => {
   imageToShow = <Image source={{local:imageName}}>
   console.log("ok");
});

(static) appendFile(fileName, utf8Content) → {Promise}

Parameters:

Example

import {Host} from 'miot'
...
Host.fileappendFile('name', 'base64').then(_ =>{
 //写入成功
 console.log('write success')
})
...

(static) appendFileThroughBase64(fileName, base64Content) → {Promise}

Parameters:

Example

import {Host} from 'miot'
...
Host.fileappendFileThroughBase64('name', 'base64').then(_ =>{
 //写入成功
 console.log('write success')
})
...

(static) dataLengthOfBase64Data(base64Data) → {Promise}

Parameters:

Example

import {Host} from 'miot'
...
let len = await Host.file.dataLengthOfBase64Data('data')
//or
Host.file.dataLengthOfBase64Data('data').then(len => console.log('len:', len))
...

(static) deleteFile(fileName) → {Promise}

Parameters:

Example

import {Host} from 'miot'
...
Host.filedeleteFile('name').then(_ =>{
 console.log('delete success')
})
...

(static) downloadFile(url, fileName) → {Promise}

Parameters:

Example

import {Host} from 'miot'
...
Host.file.downloadFile('url', 'targetName').then(res =>{
 console.log('download success with res:', res)
}).catch(err => {
 console.log('download failed with err:', err)
})
...

(static) generateObjNameAndUrlForFDSUpload(did, suffix)

Parameters:

Since:

• 10004

Example

let did = Device.deviceID;
        let suffix = "mp3";
        Host.file.generateObjNameAndUrlForFDSUpload(did, suffix).then(res => {
        if (res.hasOwnProperty(suffix) && res[suffix]) {
            let obj = res[suffix];
            let obj_name = obj.obj_name;
            let name = obj_name.substring(obj_name.length - 22)
            let content = "AC";
            let time = obj.time;
            this.file_obj_name = obj_name;
            console.log("pre upload", res)

            Host.file.writeFile(name, content).then(r => {
                let param = {
                    uploadUrl: obj.url,
                    method: obj.method,
                    headers: { "Content-Type": "" },
                    files: [{ filename: name }]
                }
                Host.file.uploadFileToFDS(param).then(rr => {
                    alert('上传成功' + JSON.stringify(rr))
                    console.log('upload file success', rr)
                }).catch(err => {
                    alert('上传失败' + JSON.stringify(err))
                    console.log('upload file failed', err)
                })
            }).catch(err => {
                alert('存储临时文件失败' + JSON.stringify(err))
                console.log("write file failed", err)
            })
        }
        })

(static) generateObjNameAndUrlForLogFileFDSUpload(did, suffix)

Parameters:

Since:

• 10011

(static) getFDSFileInfoWithObjName(obj_name)

Parameters:

Since:

• 10004

Example

let did = Device.deviceID;
        let suffix = "mp3";
        let file_obj_name = this.file_obj_name //从服务端获取或者本地获取,通过generateObjNameAndUrlForFDSUpload 生成
        if (file_obj_name) {
        Host.file.getFDSFileInfoWithObjName(file_obj_name).then(res => {
            console.log('getfileurl success', res)
            alert('获取成功' + JSON.stringify(res))
        }).catch(err => {
            console.log('getfileurl failed', err)
        })
        } else {
        alert("先上传文件")
        }

(static) getRGBAValueFromImageAtPath(imagePath, points) → {Promise}

Parameters:

(static) isFileExists(fileName) → {Promise.<boolean>}

Parameters:

Example

import {Host} from 'miot'
...
let fileExist = await Host.file.isFileExists('fileName')
//or
Host.file.isFileExists('fileName').then(res => {
console.log('file exist at path:', res)
}).catch(err => {
// file name error or get file path with error
})

(static) longScreenShot(viewRef, imageName) → {Promise.<string>}

Parameters:

Example

var findNodeHandle = require('findNodeHandle');
 var myScrollView = findNodeHandle(this.refs.myScrollView);
 Host.file.longScreenShot(myScrollView, 'test2.png').then(imagePath=>{
     console.log(imagePath);
 });

(static) readFile(fileName, optopt) → {Promise}

Parameters:

Example

import {Host} from 'miot'
...
Host.filereadFile('name').then(content =>{
 console.log('file content:', content)
})

(static) readFileList() → {Promise}

Example

import {Host} from 'miot'
...
Host.file.readFileList().then(res => {
 console.log('read fiel list:', res)
})

Host.file.readFileList('mysubfolder/aaa').then(res => {
 console.log('read fiel list:', res)
})

(static) readFileToBase64(fileName) → {Promise}

Parameters:

(static) readFileToHexString(fileName) → {Promise}

Parameters:

Example

import {Host} from 'miot'
...
Host.filereadFileToHexString('name').then(content =>{
 console.log('file content:', content)
})

(static) saveImageToPhotosAlbum(fileName) → {Promise}

Parameters:

Example

import {Host} from 'miot'
...
Host.file.saveImageToPhotosAlbum('name').then(_ =>{
 console.log('successful save to PhotosAlbum')
})
...

(static) screenShot(imageName) → {Promise.<string>}

Parameters:

Example

<Image source={{local:imageName, scale:PixelRatio.get()}} />

(static) screenShotInRect(imageName, rect) → {Promise.<string>}

Parameters:

(static) subBase64DataOfBase64Data(base64Data, loc, len) → {Promise}

Parameters:

(static) ungzFile(fileName) → {Promise}

Parameters:

(static) ungzYunMiFile(fileName) → {Promise}

Parameters:

(static) unzipFile(fileName) → {Promise}

Parameters:

(static) uploadFile(params) → {Promise}

Parameters:

Example

import {Host} from 'miot'
...
let params = {
 uploadUrl: 'http://127.0.0.1:3000',
 method: 'POST', // default 'POST',support 'POST' and 'PUT'
 headers: {
     'Accept': 'application/json',
 },
 fields: {
     'hello': 'world',
 },
 files: [
     {
         fileName: 'fileName.png', // 只能上传插件sandbox里的文件
     },
 ]
};
Host.file.uploadFile(params).then(res => {
 console.log('upload success with res:', res)
}).catch(err => {
 console.log('upload failed with err:', err)
})
...

(static) uploadFileToFDS(params) → {Promise}

Parameters:

Example

same as Host.file.uploadFile

(static) writeFile(fileName, utf8Content) → {Promise}

Parameters:

Example

import {Host} from 'miot'
...
Host.filewriteFile('name', 'content').then(_ =>{
 //写入成功
 console.log('write success')
})
...

(static) writeFileThroughBase64(fileName, base64Content) → {Promise}

Parameters:

Example

import {Host} from 'miot'
...
Host.filewriteFileThroughBase64('name', 'base64').then(_ =>{
 //写入成功
 console.log('write success')
})
...