微信小程序獲取收貨地址

微信?程序獲取收貨地址微信?程序獲取?戶的收貨地址wxml<viewclass="address_btn"><buttonbindtap="chooseAddress"type="primary">添加收獲地址</button></view>?先我們來(lái)把邏輯和思路梳理?下，磨?不誤砍柴功下?的梳理?定要看，很重要，如果不看根本不可能理解（?佬請(qǐng)繞?）1綁定點(diǎn)擊事件2調(diào)??程序內(nèi)置api獲取?戶的收貨地址wx.chooseAddress3獲取?戶對(duì)?程序所授予獲取地址的權(quán)限狀態(tài)scope1假設(shè)?戶點(diǎn)擊獲取收貨地址的提?框確定authSettingscope.addressscope值true直接調(diào)?獲取收貨地址2假設(shè)?戶從來(lái)沒(méi)有調(diào)?過(guò)收貨地址的apiscopeundefined直接調(diào)?獲取收貨地址3假設(shè)?戶點(diǎn)擊獲取收貨地址的提?框取消scope值false1誘導(dǎo)?戶??打開(kāi)授權(quán)設(shè)置頁(yè)?(wx.openSetting)當(dāng)?戶重新給與獲取地址權(quán)限的時(shí)候2獲取收貨地址4把獲取到的收貨地址存?到本地存儲(chǔ)中順著這個(gè)邏輯我們來(lái)?步步開(kāi)發(fā)//1.獲取權(quán)限狀態(tài)wx.getSetting({success:(result)=>{//2.獲取權(quán)限狀態(tài)主要發(fā)現(xiàn)?些屬性名很怪異的時(shí)候使?[]形式獲取屬性值constscopeAddress=result.authSetting["scope.address"];if(scopeAddress===true||scopeAddress===undefined){wx.chooseAddress({success:(result1)=>{console.log(result1);}});}else{//3.?戶拒絕了授權(quán)先誘導(dǎo)?戶打開(kāi)授權(quán)wx.openSetting({success:(result2)=>{//console.log(result2);//調(diào)?獲取收貨地址wx.chooseAddress({success:(result3)=>{console.log(result3);}});}});}}});邏輯和功能全部實(shí)現(xiàn)，但是看到代碼很臃腫，?且有很多的回調(diào)，性能會(huì)下降，優(yōu)化?波asyncchooseAddress(){//1.獲取權(quán)限狀態(tài)constres1=awaitgetSetting();constscopeAddress=res1.authSetting["scope.address"];//2.判斷權(quán)限狀態(tài)/*if(scopeAddress===true||scopeAddress===undefined){}else{//?戶拒絕了授權(quán)先誘導(dǎo)?戶打開(kāi)授權(quán)awaitopenSetting();}*/if(scopeAddress===false){//?戶拒絕了授權(quán)先誘導(dǎo)?戶打開(kāi)授權(quán)awaitopenSetting();}//3.調(diào)?獲取收貨地址constres2=awaitchooseAddress();console.log(res2);},優(yōu)化代碼完成，簡(jiǎn)化了部分邏輯，提?性能,但是要注意了，使?了async和await，?程序是不?持的，但是可以通過(guò)技術(shù)?段騙過(guò)?程序，看下?萬(wàn)能的github啊下載facebook的regenerator庫(kù)中的在?程序?錄下新建?件夾lib/runtime/runtime.js，將代碼拷?進(jìn)去在每?個(gè)需要使?async語(yǔ)法的??js?件中，都引?（不能全局引?）importregeneratorRuntimefrom'../../lib/runtime/runtime';//引?就可以，不需要使?突發(fā)奇想（驗(yàn)證可實(shí)現(xiàn)）?般來(lái)說(shuō)到這?就完了，但是我閑的?聊，?脆再對(duì)這個(gè)獲取收獲地址權(quán)限再做?個(gè)封裝在?程序?錄下新建?件夾utils/asyncWx.js,并且封裝和暴露3個(gè)函數(shù)/***promise形式的getSetting*/exportconstgetSetting=()=>{returnnewPromise((resolve,reject)=>{wx.getSetting({success:(result)=>{resolve(result);},fail:(err)=>{reject(err);}});})}/***promise形式的chooseAddress*/exportconstchooseAddress=()=>{returnnewPromise((resolve,reject)=>{wx.chooseAddress({success:(result)=>{resolve(result);},fail:(err)=>{reject(err);}});})}/***promise形式的openSetting*/exportconstopenSetting=()=>{returnnewPromise((resolve,reject)=>{wx.openSetting({success:(result)=>{resolve(result);},fail:(err)=>{reject(err);}});})}在?程序中使?先引?三個(gè)函數(shù)，因?yàn)槭?了async語(yǔ)法，所以引?runtime.jsimport{getSetting,chooseAddress,openSetting}from'../../utils/asyncWx.js'importregeneratorRuntimefrom'../../lib/runtime/runtime';使?asyncchooseAddress(){try{//1.獲取權(quán)限狀態(tài)constres1=awaitgetSetting();constscopeAddress=res1.authSetting["scope.address"];//2.判斷權(quán)限狀態(tài)if(scopeAddress===false){//?戶拒絕了授權(quán)先誘導(dǎo)?戶打開(kāi)授權(quán)awaitopenSetting();}//3.調(diào)?獲取收貨地址letaddress=awaitchooseAddress();address.all=vinceName+address