Koltin28

// 请求验证码，其中 country 表示国家代码，如“86”；phone 表示手机号码，如“13800138000”

SMSSDK.getVerificationCode("86", phone)

//开启倒计时

tv_user_code.isEnabled = false

Thread(CutDownTask()).start()

}

}

iv_login.setOnClickListener {

//提交验证码

val phone = et_user_phone.text.toString().trim()

val code = et_user_code.text.toString().trim()

//下面是短信验证码的校验，先屏蔽

// if (SMSUtil.judgePhoneNums(this, phone) && !TextUtils.isEmpty(code)) {

// // 提交验证码，其中的 code 表示验证码，如“1357”

// SMSSDK.submitVerificationCode("86", phone, code)

// }

//直接登录登录外卖服务器，省去短信验证码验证阶段

loginActivityPresenter.loginByPhone(phone)

}

}

companion object {

val TIME_MINUS = -1 //剩余时间的消息

val TIME_IS_OUT = 0 //60s 超时

}

//创建一个 handler 来刷新 UI

val handler = @SuppressLint("HandlerLeak")

object : Handler(){

override fun handleMessage(msg: Message?) {

super.handleMessage(msg)

when(msg!!.what){

TIME_MINUS -> tv_user_code.text = "剩余时间(${time})秒"

TIME_IS_OUT -> {

tv_user_code.isEnabled = true

tv_user_code.text = "点击重发"

time = 60

}

}

}

}

//倒计时的实现 60s

var time = 60

inner class CutDownTask: Runnable {

override fun run() {

//倒计时循环

while (time>0){

//刷新剩余时间，当前子

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线程，使用 handler

handler.sendEmptyMessage(TIME_MINUS)

SystemClock.sleep(999)

time --

}

handler.sendEmptyMessage(TIME_IS_OUT)

}

}

// 使用完 EventHandler 需注销，否则可能出现内存泄漏

override fun onDestroy() {

super.onDestroy()

SMSSDK.unregisterEventHandler(eh)

}

fun onLoginSuccess() {

finish()

toast("登录成功")

}

fun onLoginFailed(){

toast("登录失败")

}

}

LoginActivityPresenter.kt 登录的网络请求逻辑

package com.example.takeout.presenter

import com.example.takeout.beans.User

import com.example.takeout.ui.activity.LoginActivity

import com.example.takeout.utils.TakeoutApp

import com.google.gson.Gson

//继承 NetPresenter

class LoginActivityPresenter(val loginActivity: LoginActivity) : NetPresenter(){

//使用手机号码登录的业务

fun loginByPhone(phone:String) {

val homeCall = takeoutService.loginByPhone()

homeCall.enqueue(callback)

}

override fun parserJson(json: String) {

val user = Gson().fromJson(json, User::class.java)

if (user != null) {

//缓存到内存中

TakeoutApp.sUser = user

loginActivity.onLoginSuccess()

} else{

loginActivity.onLoginFailed()

}

}

}

UserFragment.kt 登录成功以后用户展示界面的刷新

package com.example.takeout.ui.fragment

import android.app.Fragment

import android.content.Intent

import android.os.Bundle

import android.view.LayoutInflater

import android.view.View

import android.view.ViewGroup

import android.widget.ImageView

import android.widget.LinearLayout

import com.example.takeout.R

import com.example.takeout.ui.activity.LoginActivity

import com.example.takeout.utils.TakeoutApp

import kotlinx.android.synthetic.main.fragment_user.*

import org.jetbrains.anko.find

class UserFragment : Fragment() {

lateinit var ll_userinfo: LinearLayout

lateinit var ivLogin:ImageView

override fun onCreateView(

inflater: LayoutInflater,

container: ViewGroup?,

savedInstanceState: Bundle?

): View? {

val userview = View.inflate(activity, R.layout.fragment_user, null)

ll_userinfo = userview.find<LinearLayout>(R.id.ll_userinfo)

ivLogin = userview.find<ImageView>(R.id.login)

ivLogin.setOnClickListener {

val intent = Intent(activity, LoginActivity::class.java)

activity.startActivity(intent)

}

return userview

}

override fun onStart() {

super.onStart()

//展示登录成功后的 ui 效果

val user = TakeoutApp.sUser

if (user.id == -1) {

//未登录

ll_userinfo.visibility = View.GONE

ivLogin.visibility = View.VISIBLE

} else {

ivLogin.visibility = View.GONE

ll_userinfo.visibility = View.VISIBLE

username.text = "欢迎您，${user.name}"

phone.text = user.phone

}

}

}

TakeoutApp.kt 保存登录的数据

package com.example.takeout.utils

import android.app.Application

import com.example.takeout.beans.User

class TakeoutApp : Application() {

companion object {

var sUser: User = User()

lateinit var sInstance: TakeoutApp

}

//应用程序的入口

override fun onCreate() {

super.onCreate()

sInstance = this

sUser.id = -1 //未登录用户 id=-1

}

}

User.kt 用户的 bean 数据，对 bean 的数据进行初始化

package com.example.takeout.beans

import java.io.Serializable

data class User(

var id: Int = 0,

var name: String? = null,

var balance: Float = 0.toFloat(),

var discount: Int = 0,

var integral: Int = 0,

var phone: String? = null

) : Serializable {

// var id: Long = 0