微信小程序開發(fā)(六)

1、微信小程序開發(fā)(六)第六章 APIAPI框架總覽(繪圖API專列章學(xué)習(xí),暫略)網(wǎng)絡(luò)API媒體API數(shù)據(jù)API位置API窗口API繪圖API開放API設(shè)備API1Wx.request2Wx.uploadFile3Wx.downloadFile4Wx.connectSocket 7onSocketOpen|onSocketError5Wx.sendSocketMessage8onSocketMessage6closeSockeonSocketClose1Wx.closeImage2Wx.previewImage3Wx.startRecord4Wx.stopRecord5Wx.playbackgro

2、undvoice,audio10onBackgroundAudioPlay6Wx.pausebackgroundvoice,audio11onBackgroundAudioPause7Wx.stopbackgroundvoice,audio12onBackgroundAudioStop8Wx.chooseVideo9Wx.saveFile1Wx.getStorage2Wx.setStorage3Wx.clearStoage1Wx.getLocation2Wx.openLocation1Wx.getNetWorkType3onAccelerometerChange2Wx.getSystemInf

3、o4onCompassChange1Wx.login2Wx.getUserInfo3Wx.requestPayment1Wx.navigateTo7Wx.hideKeyBoard2Wx.navigateBack8Wx.stopPulldownFresh3Wx.directTo9Wx.setNavigationBarTitle4Wx.createAnimation10wx.showNavigationBarLoading5Wx.createContext11wx.hideNavigationBarLoading6Wx.drawCanvas第1節(jié) 網(wǎng)絡(luò)API1. 發(fā)送請求:wx.request(o

4、bject)+數(shù)據(jù)請求Wx.request(url:url,data:object,method:get|post,dataType:json,header:content-type:application/json,success:function(res)var data=res.data,fail:function(),complate:function()2. 上傳下載:wx.upload(object)|wx.download(object)+選取一個圖片上傳Wx.chooseImage(Success:function(res)Var tmp=res.tempFilePathsWx

5、.uploadFile(url:url,filePath:tmp0,name:”file”,formData:user:test)+下載一段音樂播放Wx.downloadFile(url:url,type:audio,success:function(res)wx.playVoice(filePath:res.tmpFilePath)3. 嵌套字:+連接Wx.connectSocket(url:url,data:data,header:,method:get|post)+打開Wx.onSocketOpen(function(res)+出錯Wx.onSocketError(function(re

6、s)+發(fā)數(shù)據(jù)Wx.sendSocketMessage(data:msg)+發(fā)消息(回調(diào))Wx.onSocketMessage(function(res)+關(guān)閉Wx.closeSocket(url:url)+關(guān)閉(回調(diào))Wx.onSocketClose(function(res)第2節(jié) 媒體API1. 圖片:+選圖Wx.chooseImage(count:1,sizetype:,sourceType:album,camera,success:function(res)+預(yù)覽Wx.previewImage(current:,urls:)2. 錄音:+錄音Wx.startRecord(success

7、:function(),fail:function()+停止Wx.stopRecord()3. 音頻控制:+播放Wx.playVoice(filePath:xxxx,comlete:function()+暫停Wx.pauseVoice()+停止Wx.stopVoice()4. 音樂控制:+獲狀態(tài)Wx.getBackgroundAudioPlayState(success:function(res)res.status|dataUrl|currentPosition|duration)+播放Wx.playBackgroundAudio(dataUrl:xx,title:xx,coverImgUr

8、l:xx)+暫停Wx.pauseBackgroundAudio()+定位Wx.seekBackgroundAudio(position:60)+停止Wx.stopBackgroundAudion()5. 視頻:+表現(xiàn)層<view><video src=”src”></video><button bindTap=”getVideo”>get</button></view>+邏輯層Page(Data:src:xxx,getVideo:function()var that=this;wx.chooseVideo(sourceTy

9、pe:,success:function(res)that.setData(src:res.tempfilePath)6. 音頻組件控制:+創(chuàng)建上下文Var ctx=wx.createAudioContext(audioId)+播放Ctx.paly()+暫停Ctx.pause()+進(jìn)到Ctx.seek(n)+從頭Ctx.seek(0)+停止Ctx.stop()7. 視頻組件控制:+創(chuàng)建上下文Var ctx=wx.createVedioContext(videoId)+發(fā)送彈幕Ctx.sendDanmu(text:xxxx,color:#xxxxxx)8. 文件:+保存文件Wx.saveFile

10、(tempFilePath:xxx,success:function(res)+獲已保存文件列表Wx.getSavedFileList(success:function(res)var list=res.fileList)+獲已保存文件信息Wx.getSavedFileInfo(filePath:xxx,success:function(res)+移除已保存文件Wx.removeSavedFile(filePath:xxx,complete:function(res)+打開文件Wx.openDocument(filePath:xxx,success:function(res)第3節(jié) 數(shù)據(jù)API

11、+設(shè)置數(shù)據(jù)Wx.setStorage(key:xxx,value:xxx)+獲取數(shù)據(jù)Wx.getStorage(key:xxx,success:function(res)+清空數(shù)據(jù)Wx.clearStorage()+設(shè);置數(shù)據(jù)(異步)Wx.setStorageSync(key:xxx,value:xxx)+獲取數(shù)據(jù)(異步)Wx.getStorageSync(key:xxx,success:function(res)+清空數(shù)據(jù)(異步)Wx.clearStorageSync()第4節(jié) 位置API1. 位置:+獲取位置Wx.getLocation(type:xxx,success:function(

12、res)+打開位置Wx.openLocation(latitude:xx,longItude:xx,scale:xx)+選擇位置Wx.chooseLocation(success:function(res)2. 地圖組件:+創(chuàng)建上下文Var ctx=wx.createMapContext(mapId)+中心打開Ctx.openCenterLocation(success:function(res)+移動位置Ctx.moveToLocation(success:function(res)第5節(jié) 設(shè)備API1. 系統(tǒng)信息:+同步獲取信息wx.getSystemInfo( success: func

13、tion(res) console.log(res.model) console.log(res.pixelRatio) console.log(res.windowWidth) console.log(res.windowHeight) console.log(res.language) console.log(res.version) console.log(res.platform) )+異步獲取信息wx.getSystemInfo(success:function(res)2. 網(wǎng)絡(luò)類型:+網(wǎng)絡(luò)類型wx.getNetworkType( success: function(res) va

14、r networkType = workType / 返回網(wǎng)絡(luò)類型2g，3g，4g，wifi, none, unknown )3. 重力感應(yīng):+重力感應(yīng)wx.onAccelerometerChange(function(res) console.log(res.x) console.log(res.y) console.log(res.z)4. 羅盤指南:+羅盤指南wx.onCompassChange(function (res) console.log(res.direction)5. 撥打電話:+撥打電話wx.makePhoneCall( phoneNumber: '1509384

15、3683')6. 掃碼:+掃碼wx.scanCode( success: function(res) console.log(res) )7. 剪貼板:+加入剪貼板Wx.setClipboadData(data:xx,success:function(res)+讀取剪貼板Wx.getClipboardData(success:function(res)var data=res.data)8. 籃牙:+籃牙wx.openBluetoothAdapter( success: function (res) console.log(res) )第6節(jié) 窗口API1. 互動操作:+自消窗口Wx.

16、showToast(title:xx,icon:xx,duration:xx)+對話框Wx.showDialog(title:xx)+對話框(模態(tài))Wx.showModal(title:xx,content:xx,success:function(res)+活動頁簽Wx.showActionSheet(itemList:,success:function(res)2. 導(dǎo)航設(shè)置:+設(shè)標(biāo)題Wx.setNavigationBarTitle(title:xxx)+顯動畫Wx.showNavigationBarLoading()+隱動畫Wx.hideVavigationBarLoading()3. 導(dǎo)

17、航操控:+轉(zhuǎn)到Wx.vavigatorTo(url:xx,success:function(res)+重定向Wx.redirectTo(url:xx;success:funtion(res)+重載Wx.reLaunch(url:xx,success:function(res)+切頁Wx.switchTab(url:xxx)+返回Wx.navigatorBack(delta:xx)4. 動畫操作:+創(chuàng)建動畫Var ani=wx.createAnimation(transformOrign:xx,duration:xx,timingFunction:xx)+具體方法(略)第7節(jié) 繪圖API詳述于第

18、七章.第8節(jié) 開放接口API1. 小程序登錄API=登錄微信:+登錄微信Wx.login(success:function()+檢查會話Wx.checkSession(success:function(),fail:function()=簽名驗證|加密解密為了確保開放接口返回用戶數(shù)據(jù)的安全性，微信會對明文數(shù)據(jù)進(jìn)行簽名。開發(fā)者可以根據(jù)業(yè)務(wù)需要對數(shù)據(jù)包進(jìn)行簽名校驗，確保數(shù)據(jù)的完整性。簽名校驗算法涉及用戶的session_key，通過 wx.login 登錄流程獲取用戶session_key，并自行維護(hù)與應(yīng)用自身登錄態(tài)的對應(yīng)關(guān)系。通過調(diào)用接口（如 wx.getUserInfo）獲取數(shù)據(jù)時，接口會同時

19、返回 rawData、signature，其中 signature = sha1( rawData + session_key )開發(fā)者將 signature、rawData 發(fā)送到開發(fā)者服務(wù)器進(jìn)行校驗。服務(wù)器利用用戶對應(yīng)的 session_key 使用相同的算法計算出簽名 signature2 ，比對 signature 與 signature2 即可校驗數(shù)據(jù)的完整性。2. 用戶信息wx.getUserInfo( success: function(res) var userInfo = res.userInfo var nickName = userInfo.nickName var av

20、atarUrl = userInfo.avatarUrl var gender = userInfo.gender /性別 0：未知、1：男、2：女 var province = userIvince var city = userInfo.city var country = userInfo.country )3. 微信支付wx.requestPayment( "timeStamp": "", "nonceStr": "", "package": "", &

21、quot;signType": "MD5", "paySign": "", "success":function(res) , "fail":function(res) )4. 模板信息不作講解5. 客服操作API=接收消息和事件-進(jìn)入客服:<contack-button />-客服消息轉(zhuǎn)發(fā)Client:requestWeichat:sendserver:response-消息類型:文本,圖片,事件-格式類型:xml,json-公共字段:ToUserName,FromUse

22、rName,CreateTime,MsgType,-專有字段:文本:Content,MsgId圖片:PicUrl,MsgId事件:Event,SessionFrom=發(fā)送客服消息http請求方式: POST=臨時素材接口-新增臨時素材Curl-Fmedia=test.jpg "-獲取臨時素材=接入指導(dǎo)(消息服務(wù)器接入)Step1:埴寫服務(wù)器配置:Step2:服務(wù)器驗證(PHP)private function checkSignature() $signature = $_GET"signature" $timestamp = $_GET"timesta

23、mp" $nonce = $_GET"nonce" $token = TOKEN; $tmpArr = array($token, $timestamp, $nonce); sort($tmpArr, SORT_STRING); $tmpStr = implode( $tmpArr ); $tmpStr = sha1( $tmpStr ); if( $tmpStr = $signature ) return true; else return false; Step3:實(shí)現(xiàn)服務(wù)功能6. 分享功能+設(shè)定分享Page(onShareAppMessage:function()return: