微信小程序开发(六)

1、微信小程序开发(六)第六章 APIAPI框架总览(绘图API专列章学习,暂略)网络API媒体API数据API位置API窗口API绘图API开放API设备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节 网络API1. 发送请求:wx.request(o

4、bject)+数据请求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. 上传下载:wx.upload(object)|wx.download(object)+选取一个图片上传Wx.chooseImage(Success:function(res)Var tmp=res.tempFilePathsWx

5、.uploadFile(url:url,filePath:tmp0,name:”file”,formData:user:test)+下载一段音乐播放Wx.downloadFile(url:url,type:audio,success:function(res)wx.playVoice(filePath:res.tmpFilePath)3. 嵌套字:+连接Wx.connectSocket(url:url,data:data,header:,method:get|post)+打开Wx.onSocketOpen(function(res)+出错Wx.onSocketError(function(re

6、s)+发数据Wx.sendSocketMessage(data:msg)+发消息(回调)Wx.onSocketMessage(function(res)+关闭Wx.closeSocket(url:url)+关闭(回调)Wx.onSocketClose(function(res)第2节 媒体API1. 图片:+选图Wx.chooseImage(count:1,sizetype:,sourceType:album,camera,success:function(res)+预览Wx.previewImage(current:,urls:)2. 录音:+录音Wx.startRecord(success

7、:function(),fail:function()+停止Wx.stopRecord()3. 音频控制:+播放Wx.playVoice(filePath:xxxx,comlete:function()+暂停Wx.pauseVoice()+停止Wx.stopVoice()4. 音乐控制:+获状态Wx.getBackgroundAudioPlayState(success:function(res)res.status|dataUrl|currentPosition|duration)+播放Wx.playBackgroundAudio(dataUrl:xx,title:xx,coverImgUr

8、l:xx)+暂停Wx.pauseBackgroundAudio()+定位Wx.seekBackgroundAudio(position:60)+停止Wx.stopBackgroundAudion()5. 视频:+表现层<view><video src=”src”></video><button bindTap=”getVideo”>get</button></view>+逻辑层Page(Data:src:xxx,getVideo:function()var that=this;wx.chooseVideo(sourceTy

9、pe:,success:function(res)that.setData(src:res.tempfilePath)6. 音频组件控制:+创建上下文Var ctx=wx.createAudioContext(audioId)+播放Ctx.paly()+暂停Ctx.pause()+进到Ctx.seek(n)+从头Ctx.seek(0)+停止Ctx.stop()7. 视频组件控制:+创建上下文Var ctx=wx.createVedioContext(videoId)+发送弹幕Ctx.sendDanmu(text:xxxx,color:#xxxxxx)8. 文件:+保存文件Wx.saveFile

10、(tempFilePath:xxx,success:function(res)+获已保存文件列表Wx.getSavedFileList(success:function(res)var list=res.fileList)+获已保存文件信息Wx.getSavedFileInfo(filePath:xxx,success:function(res)+移除已保存文件Wx.removeSavedFile(filePath:xxx,complete:function(res)+打开文件Wx.openDocument(filePath:xxx,success:function(res)第3节 数据API

11、+设置数据Wx.setStorage(key:xxx,value:xxx)+获取数据Wx.getStorage(key:xxx,success:function(res)+清空数据Wx.clearStorage()+设;置数据(异步)Wx.setStorageSync(key:xxx,value:xxx)+获取数据(异步)Wx.getStorageSync(key:xxx,success:function(res)+清空数据(异步)Wx.clearStorageSync()第4节 位置API1. 位置:+获取位置Wx.getLocation(type:xxx,success:function(

12、res)+打开位置Wx.openLocation(latitude:xx,longItude:xx,scale:xx)+选择位置Wx.chooseLocation(success:function(res)2. 地图组件:+创建上下文Var ctx=wx.createMapContext(mapId)+中心打开Ctx.openCenterLocation(success:function(res)+移动位置Ctx.moveToLocation(success:function(res)第5节 设备API1. 系统信息:+同步获取信息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) )+异步获取信息wx.getSystemInfo(success:function(res)2. 网络类型:+网络类型wx.getNetworkType( success: function(res) va

14、r networkType = workType / 返回网络类型2g，3g，4g，wifi, none, unknown )3. 重力感应:+重力感应wx.onAccelerometerChange(function(res) console.log(res.x) console.log(res.y) console.log(res.z)4. 罗盘指南:+罗盘指南wx.onCompassChange(function (res) console.log(res.direction)5. 拨打电话:+拨打电话wx.makePhoneCall( phoneNumber: '1509384

15、3683')6. 扫码:+扫码wx.scanCode( success: function(res) console.log(res) )7. 剪贴板:+加入剪贴板Wx.setClipboadData(data:xx,success:function(res)+读取剪贴板Wx.getClipboardData(success:function(res)var data=res.data)8. 篮牙:+篮牙wx.openBluetoothAdapter( success: function (res) console.log(res) )第6节 窗口API1. 互动操作:+自消窗口Wx.

16、showToast(title:xx,icon:xx,duration:xx)+对话框Wx.showDialog(title:xx)+对话框(模态)Wx.showModal(title:xx,content:xx,success:function(res)+活动页签Wx.showActionSheet(itemList:,success:function(res)2. 导航设置:+设标题Wx.setNavigationBarTitle(title:xxx)+显动画Wx.showNavigationBarLoading()+隐动画Wx.hideVavigationBarLoading()3. 导

17、航操控:+转到Wx.vavigatorTo(url:xx,success:function(res)+重定向Wx.redirectTo(url:xx;success:funtion(res)+重载Wx.reLaunch(url:xx,success:function(res)+切页Wx.switchTab(url:xxx)+返回Wx.navigatorBack(delta:xx)4. 动画操作:+创建动画Var ani=wx.createAnimation(transformOrign:xx,duration:xx,timingFunction:xx)+具体方法(略)第7节 绘图API详述于第

18、七章.第8节 开放接口API1. 小程序登录API=登录微信:+登录微信Wx.login(success:function()+检查会话Wx.checkSession(success:function(),fail:function()=签名验证|加密解密为了确保开放接口返回用户数据的安全性，微信会对明文数据进行签名。开发者可以根据业务需要对数据包进行签名校验，确保数据的完整性。签名校验算法涉及用户的session_key，通过 wx.login 登录流程获取用户session_key，并自行维护与应用自身登录态的对应关系。通过调用接口（如 wx.getUserInfo）获取数据时，接口会同时

19、返回 rawData、signature，其中 signature = sha1( rawData + session_key )开发者将 signature、rawData 发送到开发者服务器进行校验。服务器利用用户对应的 session_key 使用相同的算法计算出签名 signature2 ，比对 signature 与 signature2 即可校验数据的完整性。2. 用户信息wx.getUserInfo( success: function(res) var userInfo = res.userInfo var nickName = userInfo.nickName var av

20、atarUrl = userInfo.avatarUrl var gender = userInfo.gender /性别 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. 模板信息不作讲解5. 客服操作API=接收消息和事件-进入客服:<contack-button />-客服消息转发Client:requestWeichat:sendserver:response-消息类型:文本,图片,事件-格式类型:xml,json-公共字段:ToUserName,FromUse

22、rName,CreateTime,MsgType,-专有字段:文本:Content,MsgId图片:PicUrl,MsgId事件:Event,SessionFrom=发送客服消息http请求方式: POST=临时素材接口-新增临时素材Curl-Fmedia=test.jpg "-获取临时素材=接入指导(消息服务器接入)Step1:埴写服务器配置:Step2:服务器验证(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:实现服务功能6. 分享功能+设定分享Page(onShareAppMessage:function()return: