【移动应用开发技术】如何使微信小程序支持async await

【移动应用开发技术】如何使微信小程序支持asyncawait

解决办法：import

regeneratorRuntime

from

'./lib/runtime'

App({

...

regeneratorRuntime,

onLaunch(){},

onShow()

{},

onHide()

{},

...

})const

METHOD

=

{

GET:

'GET',

POST:

'POST',

PUT:

'PUT',

DELETE:

'DELETE'

}

let

baseUrl

=

''

const

interceptors

=

[]

class

Request

{

/**

*

response

interceptor

*/

intercept(res,

resolve,

reject)

{

return

interceptors

.filter((f)

=>

typeof

f

===

'function')

.every((f)

=>

f(res,

resolve,

reject))

}

/**

*

request

*/

request(option)

{

const

header

=

{

'content-type':

'application/x-www-form-urlencoded'

}

const

{

url,

method,

data

=

{}

}

=

option

return

new

Promise((resolve,

reject)

=>

{

try

{

wx.request({

url:

baseUrl

+

url,

method:

method

||

METHOD.GET,

data,

header,

success:

(res)

=>

ercept(res,

resolve,

reject),

fail:

(err)

=>

{

if

(

err

&&

err.errMsg

&&

err.errMsg.indexOf('request:fail')

!==

-1

)

{

console.error('wx

request

error:

',

err)

}

else

{

wx.showToast({

title:

JSON.stringify(err),

icon:

'none',

duration:

10000

})

}

}

})

}

catch

(err)

{

wx.showToast({

title:

err.message,

icon:

'none'

})

}

})

}

get(url,

data)

{

return

this.request({

url,

method:

METHOD.GET,

data

})

}

post(url,

data)

{

return

this.request({

url,

method:

METHOD.POST,

data

})

}

put(url,

data)

{

return

this.request({

url,

method:

METHOD.PUT,

data

})

}

delete(url,

data)

{

return

this.request({

url,

method:

METHOD.DELETE,

data

})

}

all(tasks)

{

return

Promise.all(tasks)

}

}

/**

*

设置base

URL

*/

function

setBaseUrl(url)

{

baseUrl

=

url

}

/**

*

默认response拦截器

*/

function

addDefaultInterceptor()

{

interceptors.push((res,

resolve,

reject)

=>

{

const

status

=

res.statusCode

if

(status

!==

200)

{

return

reject(new

Error(`internet

error:

${status}`))

}

const

body

=

res.data

if

(body.errno

!==

0)

{

return

reject({

message:

body.error,

body

})

}

return

resolve(body.data)

})

}

const

request

=

new

Request()

export

{

setBaseUrl,

addDefaultInterceptor,

request

}import

{

request,

setBaseUrl,

addDefaultInterceptor

}

from

'./lib/request'

addDefaultInterceptor()

App({

...

async

onLaunch()

{

const

userInfo

=

await

request.get('/user/info')

console.log(userInfo)

}

...

})小程序原生api使用asyncawait/**

*

promise微信API方法

*/

function

wxPromise(api)

{

function

func(options,

...params)

{

return

new

Promise((resolve,

reject)

=>

{

api(

Object.assign({},

options,

{

success:

(res)

=>

{

resolve(res)

},

fail:

reject

}),

...params

)

})

}

return

func

}

export

default

{

//

界面交互

showToast:

wxPromise(wx.showToast),

showLoading:

wxPromise(wx.showLoading),

showModal:

wxPromise(wx.showModal),

showActionSheet:

wxPromise(wx.showActionSheet),

//

导航条

setNavigationBarTitle:

wxPromise(wx.setNavigationBarTitle),

setNavigationBarColor:

wxPromise(wx.setNavigationBarColor),

setTopBarText:

wxPromise(wx.setTopBarText),

//

导航

navigateTo:

wxPromise(wx.navigateTo),

redirectTo:

wxPromise(wx.redirectTo),

switchTab:

wxPromise(wx.switchTab),

reLaunch:

wxPromise(wx.reLaunch),

//

用户相关

login:

wxPromise(wx.login),

checkSession:

wxPromise(wx.checkSession),

authorize:

wxPromise(wx.authorize),

getUserInfo:

wxPromise(wx.getUserInfo),

//

支付

requestPayment:

wxPromise(wx.requestPayment),

//

图片

chooseImage:

wxPromise(wx.chooseImage),

previewImage:

wxPromise(wx.previewImage),

getImageInfo:

wxPromise(wx.getImageInfo),

saveImageToPhotosAlbum:

wxPromise(wx.saveImageToPhotosAlbum),

//

文件

uploadFile:

wxPromise(wx.uploadFile),

downloadFile:

wxPromise(wx.downloadFile),

//

录音

startRecord:

wxPromise(wx.startRecord),

//

音频播放

playVoice:

wxPromise(wx.playVoice),

//

音乐播放

getBackgroundAudioPlayerState:

wxPromise(wx.getBackgroundAudioPlayerState),

playBackgroundAudio:

wxPromise(wx.playBackgroundAudio),

seekBackgroundAudio:

wxPromise(wx.seekBackgroundAudio),

//

视频

chooseVideo:

wxPromise(wx.chooseVideo),

saveVideoToPhotosAlbum:

wxPromise(wx.saveVideoToPhotosAlbum),

//

文件

saveFile:

wxPromise(wx.saveFile),

getFileInfo:

wxPromise(wx.getFileInfo),

getSavedFileList:

wxPromise(wx.getSavedFileList),

getSavedFileInfo:

wxPromise(wx.getSavedFileInfo),

removeSavedFile:

wxPromise(wx.removeSavedFile),

openDocument:

wxPromise(wx.openDocument),

//

数据缓存

setStorage:

wxPromise(wx.setStorage),

getStorage:

wxPromise(wx.getStorage),

getStorageInfo:

wxPromise(wx.getStorageInfo),

removeStorage:

wxPromise(wx.removeStorage),

//

位置

getLocation:

wxPromise(wx.getLocation),

chooseLocation:

wxPromise(wx.chooseLocation),

openLocation:

wxPromise(wx.openLocation),

//

设备

getSystemInfo:

wxPromise(wx.getSystemInfo),

getNetworkType:

wxPromise(wx.getNetworkType),

startAccelerometer:

wxPromise(wx.startAccelerometer),

stopAccelerometer:

wxPromise(wx.stopAccelerometer),

startCompass:

wxPromise(wx.startCompass),

stopCompass:

wxPromise(wx.stopCompass),

//

打电话

makePhoneCall:

wxPromise(wx.makePhoneCall),

//

扫码

scanCode:

wxPromise(wx.scanCode),

//

剪切板

setClipboardData:

wxPromise(wx.setClipboardData),

getClipboardData:

wxPromise(wx.getClipboardData),

//

蓝牙

openBluetoothAdapter:

wxPromise(wx.openBluetoothAdapter),

closeBluetoothAdapter:

wxPromise(wx.closeBluetoothAdapter),

getBluetoothAdapterState:

wxPromise(wx.getBluetoothAdapterState),

startBluetoothDevicesDiscovery:

wxPromise(wx.startBluetoothDevicesDiscovery),

stopBluetoothDevicesDiscovery:

wxPromise(wx.stopBluetoothDevicesDiscovery),

getBluetoothDevices:

wxPromise(wx.getBluetoothDevices),

getConnectedBluetoothDevices:

wxPromise(wx.getConnectedBluetoothDevices),

createBLEConnection:

wxPromise(wx.createBLEConnection),

closeBLEConnection:

wxPromise(wx.closeBLEConnection),

getBLEDeviceServices:

wxPromise(wx.getBLEDeviceServices),

//

iBeacon

startBeaconDiscovery:

wxPromise(wx.startBeaconDiscovery),

stopBeaconDiscovery:

wxPromise(wx.stopBeaconDiscovery),

getBeacons:

wxPromise(wx.getBeacons),

//

屏幕亮度

setScreenBrightness:

wxPromise(wx.setScreenBrightness),

getScreenBrightness:

wxPromise(wx.getScreenBrightness),

setKeepScreenOn:

wxPromise(wx.setKeepScreenOn),

//

振动

vibrateLong:

wxPromise(wx.vibrateLong),

vibrateShort:

wxPromise(wx.vibrateShort),

//

联系人

addPhoneContact:

wxPromise(wx.addPhoneContact),

//

NFC

getHCEState:

wxPromise(wx.getHCEState),

startHCE:

wxPromise(wx.startHCE),

stopHCE:

wxPromise(wx.stopHCE),

sendHCEMessage:

wxPromise(wx.sendHCEMessage),

//

Wi-Fi

startWifi:

wxPromise(wx.startWifi),

stopWifi:

wxPromise(wx.stopWifi),

connectWifi:

wxPromise(wx.connectWifi),

getWifiList:

wxPromise(wx.getWifiList),

setWifiList:

wxPromise(wx.setWifiList),

getConnectedWifi:

wxPromise(wx.getConnectedWifi),

//

第三方平台

getExtConfig:

wxPromise(wx.getExtConfig),

//

转发

showShareMenu:

wxPromise(wx.showShareMenu),

hideShareMenu:

wxPromise(wx.hideShareMenu),

updateShareMenu:

wxPromise(wx.updateShareMenu),

getShareInfo:

wxPromise(wx.getShareInfo),

//

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