[TOTP]android kotlin实现 totp身份验证器 类似Google身份验证器

        背景：自己或者公司用一些谷歌身份验证器或者microsoft身份验证器，下载来源不明，或者有广告，使用不安全。于是自己写一个，安全放心使用。

代码已开源：shixiaotian/sxt-android-totp: android totp authenticator (github.com)

效果图

  

此身份验证器，一共1个activity，3个fragment。

实现原理，通过线程动态触发totp算法，从加密的sqlite里读取密钥信息进行加密计算。新增密钥可通过扫描二维码，或者手动添加的方式实现。

一.添加对应的包

包括，totp算法包，zxing二维码扫描包，sqlite加密包

分别为

authenticator="1.0.0"
zxing-android-embedded="4.2.0"
database-sqlcipher="4.5.0"androidx-authenticator = { group = "org.jboss.aerogear", name = "aerogear-otp-java", version.ref = "authenticator" }
androidx-zxing-android-embedded = { group = "com.journeyapps", name = "zxing-android-embedded", version.ref = "zxing-android-embedded" }
androidx-database-sqlcipher ={ group = "net.zetetic", name = "android-database-sqlcipher", version.ref = "database-sqlcipher" }

  文件

libs.versions.toml

[versions]
agp = "8.7.2"
kotlin = "1.9.24"
coreKtx = "1.10.1"
junit = "4.13.2"
junitVersion = "1.1.5"
espressoCore = "3.5.1"
appcompat = "1.6.1"
material = "1.10.0"
activity = "1.8.0"
constraintlayout = "2.1.4"
authenticator="1.0.0"
zxing-android-embedded="4.2.0"
database-sqlcipher="4.5.0"[libraries]
androidx-core-ktx = { group = "androidx.core", name = "core-ktx", version.ref = "coreKtx" }
junit = { group = "junit", name = "junit", version.ref = "junit" }
androidx-junit = { group = "androidx.test.ext", name = "junit", version.ref = "junitVersion" }
androidx-espresso-core = { group = "androidx.test.espresso", name = "espresso-core", version.ref = "espressoCore" }
androidx-appcompat = { group = "androidx.appcompat", name = "appcompat", version.ref = "appcompat" }
material = { group = "com.google.android.material", name = "material", version.ref = "material" }
androidx-activity = { group = "androidx.activity", name = "activity", version.ref = "activity" }
androidx-constraintlayout = { group = "androidx.constraintlayout", name = "constraintlayout", version.ref = "constraintlayout" }
androidx-authenticator = { group = "org.jboss.aerogear", name = "aerogear-otp-java", version.ref = "authenticator" }
androidx-zxing-android-embedded = { group = "com.journeyapps", name = "zxing-android-embedded", version.ref = "zxing-android-embedded" }
androidx-database-sqlcipher ={ group = "net.zetetic", name = "android-database-sqlcipher", version.ref = "database-sqlcipher" }[plugins]
android-application = { id = "com.android.application", version.ref = "agp" }
kotlin-android = { id = "org.jetbrains.kotlin.android", version.ref = "kotlin" }

 build.gradele.kts

plugins {alias(libs.plugins.android.application)alias(libs.plugins.kotlin.android)
}android {namespace = "com.shixiaotian.totp.scan.application"compileSdk = 34defaultConfig {applicationId = "com.shixiaotian.totp.scan.application"minSdk = 24targetSdk = 34versionCode = 1versionName = "1.0"testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"}buildTypes {release {isMinifyEnabled = falseproguardFiles(getDefaultProguardFile("proguard-android-optimize.txt"),"proguard-rules.pro")}}compileOptions {sourceCompatibility = JavaVersion.VERSION_11targetCompatibility = JavaVersion.VERSION_11}kotlinOptions {jvmTarget = "11"}
}dependencies {implementation(libs.androidx.core.ktx)implementation(libs.androidx.appcompat)implementation(libs.material)implementation(libs.androidx.activity)implementation(libs.androidx.constraintlayout)implementation(libs.androidx.authenticator)implementation(libs.androidx.espresso.core)implementation(libs.androidx.zxing.android.embedded)implementation(libs.androidx.database.sqlcipher)testImplementation(libs.junit)androidTestImplementation(libs.androidx.junit)androidTestImplementation(libs.androidx.espresso.core)}

二.项目程序文件结构为

三.全部程序文件

MyConstant

作用：常量类，添加了如下三个参数，方便自行变换，增加安全性和防止撞库

package com.shixiaotian.totp.scan.application.commonclass MyConstants {companion object {//数据库名称，记得加扰动防止重复const val dbName = "sxt.auth.code.0098675.db"// 数据库密码const val dbPassword = "jsdfjhkldsvcbuehuisudbekokmhshyebgqoondyasd"// app 首次运行标记const val firstRunTag = "sxt.auth.code.0098674.firstRunTag"}
}

DatabaseHelper

作用：数据库操作相关类，集成了数据库加密，初始化，基本插入、读取、删除等功能

package com.shixiaotian.totp.scan.application.dbimport android.content.Context
import android.database.Cursor
import androidx.core.content.contentValuesOf
import com.shixiaotian.totp.scan.application.common.MyConstants
import com.shixiaotian.totp.scan.application.vo.User
import net.sqlcipher.database.SQLiteDatabase
import net.sqlcipher.database.SQLiteOpenHelperclass DatabaseHelper(context: Context) : SQLiteOpenHelper(context, MyConstants.dbName, null, 1) {private val dbContext:Context = contextoverride fun onCreate(db: SQLiteDatabase) {}override fun onUpgrade(db: SQLiteDatabase, oldVersion: Int, newVersion: Int) {// 更新数据库的时候调用}private fun openEncryptedDatabase(): SQLiteDatabase {val dbHelper = DatabaseHelper(dbContext)val db = dbHelper.getWritableDatabase(MyConstants.dbPassword)return db}// 写入数据fun insertUser(username: String, secretKey: String, issuer: String): Long {val db = this.openEncryptedDatabase()var id =db.insert("sxt_totp_users", null, contentValuesOf("username" to username, "secretKey" to secretKey, "issuer" to issuer))db.close()return id}// 删除数据fun deleteUser(id: Int) {val db = this.openEncryptedDatabase()db.delete("sxt_totp_users", "id = ?", arrayOf(id.toString()))db.close()}// 查询数据fun getUser(id: Int): User? {val db = this.openEncryptedDatabase()val cursor: Cursor = db.query("sxt_totp_users", null, "id = ?", arrayOf(id.toString()), null, null, null)var user: User? = nullif (cursor.moveToFirst()) {val id = cursor.getInt(0)val name = cursor.getString(1)val secretKey = cursor.getString(2)val issuer = cursor.getString(3)// 假设User有id和name两个字段user = User(id, name,secretKey, issuer)}cursor.close()db.close()return user}fun getAllUser(): List<User> {val db = this.openEncryptedDatabase()val items = ArrayList<User>()val cursor: Cursor  = db.query("sxt_totp_users", arrayOf("id","username","secretKey", "issuer"), null, null, null, null, null)cursor.moveToFirst()while (!cursor.isAfterLast) {val id = cursor.getInt(0)val name = cursor.getString(1)val secretKey = cursor.getString(2)val issuer = cursor.getString(3)items.add(User(id, name,secretKey, issuer))cursor.moveToNext()}cursor.close()db.close()return items}fun initDB() {// 创建表val db = this.openEncryptedDatabase()db.execSQL("CREATE TABLE sxt_totp_users (id INTEGER PRIMARY KEY, username TEXT, secretKey TEXT, issuer TEXT)")db.close()}fun init() {this.insertUser("apple","apple", "github")this.insertUser("pear","pear", "steam")this.insertUser("apricot","apricot","wiki")this.insertUser("peach","peach","TK")}
}

CodeAddFragment

作用：令牌添加页面片段，提供手动输入令牌，和触发zxing令牌扫描功能，并回收zxing扫描后的结果，进行存储，将相关id数据传输给codeShow单独展示的页面进行展示。

package com.shixiaotian.totp.scan.application.fragmentsimport android.annotation.SuppressLint
import android.app.AlertDialog
import android.content.Intent
import android.os.Bundle
import androidx.fragment.app.Fragment
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.TextView
import android.widget.Toast
import com.shixiaotian.totp.scan.application.db.DatabaseHelper
import com.shixiaotian.totp.scan.application.tools.EncodeTools
import com.google.zxing.integration.android.IntentIntegrator
import com.journeyapps.barcodescanner.CaptureActivity
import com.shixiaotian.totp.scan.application.R// TODO: Rename parameter arguments, choose names that match
private const val ARG_PARAM1 = "param1"
private const val ARG_PARAM2 = "param2"/*** A simple [Fragment] subclass.* Use the [CodeAddFragment.newInstance] factory method to* create an instance of this fragment.*/
class CodeAddFragment : Fragment() {private lateinit var saveButton: Viewprivate lateinit var scanButton: Viewprivate lateinit var nameText: TextViewprivate lateinit var secretKeyText: TextViewprivate lateinit var issuerText: TextView// TODO: Rename and change types of parametersprivate var param1: String? = nullprivate var param2: String? = nulloverride fun onCreate(savedInstanceState: Bundle?) {super.onCreate(savedInstanceState)arguments?.let {param1 = it.getString(ARG_PARAM1)param2 = it.getString(ARG_PARAM2)}}@SuppressLint("MissingInflatedId")override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,savedInstanceState: Bundle?): View? {// Inflate the layout for this fragmentval view = inflater.inflate(R.layout.fragment_code_add, container, false)val dbHelper = DatabaseHelper(requireContext())saveButton = view.findViewById(R.id.saveButton)saveButton.setOnClickListener {nameText = view.findViewById<TextView>(R.id.addUsernameText)val name = nameText.getText();secretKeyText = view.findViewById<TextView>(R.id.addSecretKeyText)val secretKey = secretKeyText.getText();issuerText = view.findViewById<TextView>(R.id.addIssuerText)val issuer = issuerText.getText();if(name.isEmpty()) {alertAddError("Name can't be blank")} else if(secretKey.isEmpty()) {alertAddError("SecretKey can't be blank")} else if(issuer.isEmpty()){alertAddError("issuer can't be blank")} else {var saveId = dbHelper.insertUser(name.toString(), secretKey.toString(), issuer.toString());nameText.setText("")secretKeyText.setText("")issuerText.setText("")val fragment = CodeShowFragment.newInstance(saveId.toString(), "")parentFragmentManager.beginTransaction().replace(R.id.viewPager, fragment).commit()}}scanButton = view.findViewById(R.id.cameraButton)scanButton.setOnClickListener {val integrator = IntentIntegrator.forSupportFragment(this)integrator.setDesiredBarcodeFormats(IntentIntegrator.QR_CODE)integrator.setOrientationLocked(false)integrator.captureActivity = CaptureActivity::class.javaintegrator.setRequestCode(5766)  //_scan为自己定义的请求码integrator.initiateScan()}return view}fun alertAddError(msg : String) {println("alertAddError : " + msg)val builder = AlertDialog.Builder(context)builder.setTitle("add error")builder.setMessage(msg)builder.setPositiveButton("OK") { dialog, _ ->dialog.dismiss()}builder.create().show()}override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {super.onActivityResult(requestCode, resultCode, data)when (requestCode) {//_scan为自己定义的扫码请求码5766 -> {// 跳转扫描页面返回扫描数据var scanResult = IntentIntegrator.parseActivityResult(IntentIntegrator.REQUEST_CODE,resultCode,data);//  判断返回值是否为空if (scanResult != null) {//返回条形码数据var result = scanResult.contentsif(result == null) {parentFragmentManager.beginTransaction().replace(R.id.viewPager, this).commit()return}val user = EncodeTools.decode(result);if(user == null) {Toast.makeText(context, "Scan Fail", Toast.LENGTH_SHORT).show()parentFragmentManager.beginTransaction().replace(R.id.viewPager, this).commit()return}// 保存数据val dbHelper = DatabaseHelper(requireContext())var saveId = dbHelper.insertUser(user!!.getUsername(), user.getSecretKey(), user.getIssuer())if(saveId < 0 ) {Toast.makeText(context, "Save Data Fail", Toast.LENGTH_SHORT).show()parentFragmentManager.beginTransaction().replace(R.id.viewPager, this).commit()return}// 跳转val fragment = CodeShowFragment.newInstance(saveId.toString(), "")parentFragmentManager.beginTransaction().replace(R.id.viewPager, fragment).commit()} else {Toast.makeText(context, "Scan Fail:ERROR", Toast.LENGTH_SHORT).show()parentFragmentManager.beginTransaction().replace(R.id.viewPager, this).commit()}} else -> {val fragment = CodeAddFragment()parentFragmentManager.beginTransaction().replace(R.id.viewPager, fragment).commit()}}}companion object {/*** Use this factory method to create a new instance of* this fragment using the provided parameters.** @param param1 Parameter 1.* @param param2 Parameter 2.* @return A new instance of fragment CodeAddFragment.*/// TODO: Rename and change types and number of parameters@JvmStaticfun newInstance(param1: String, param2: String) =CodeAddFragment().apply {arguments = Bundle().apply {putString(ARG_PARAM1, param1)putString(ARG_PARAM2, param2)}}}
}

CodeListFragment

作用：令牌列表界面，提供了定时器刷新整个列表的功能，和每个令牌单独点击触发的功能

package com.shixiaotian.totp.scan.application.fragmentsimport android.annotation.SuppressLint
import android.os.Bundle
import android.os.Handler
import androidx.fragment.app.Fragment
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.ListView
import android.widget.TextView
import com.shixiaotian.totp.scan.application.CodeListAdapter
import com.shixiaotian.totp.scan.application.R
import com.shixiaotian.totp.scan.application.db.DatabaseHelper
import com.shixiaotian.totp.scan.application.tools.MyTimeUtils
import com.shixiaotian.totp.scan.application.vo.User// TODO: Rename parameter arguments, choose names that match
private const val ARG_PARAM1 = "param1"
private const val ARG_PARAM2 = "param2"/*** A simple [Fragment] subclass.* Use the [CodeListFragment.newInstance] factory method to* create an instance of this fragment.*/
class CodeListFragment : Fragment() {private var start: Long = 30private lateinit var adapter: CodeListAdapterprivate val handler = Handler()private var runnable: Runnable? = null// TODO: Rename and change types of parametersprivate var param1: String? = nullprivate var param2: String? = nullprivate var userList: List<User>? =nullprivate val data = listOf("apple","pear","apricot","peach","grape","banana","pineapple","plum","watermelon","orange","lemon","mango","strawberry","medlar","mulberry","nectarine","cherry","pomegranate","fig","persimmon")override fun onCreate(savedInstanceState: Bundle?) {super.onCreate(savedInstanceState)arguments?.let {param1 = it.getString(ARG_PARAM1)param2 = it.getString(ARG_PARAM2)}}override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,savedInstanceState: Bundle?): View? {// 获取视图val view = inflater.inflate(R.layout.fragment_code_list, container, false)val listView = view.findViewById<ListView>(R.id.listView)var textView3 = view.findViewById<TextView>(R.id.textView3)// 查询数据库val dbHelper = DatabaseHelper(requireContext())userList = dbHelper.getAllUser();//获取当前分钟秒数// 启动定时器timer(textView3)// 创建ArrayAdapter，将数据源传递给它adapter = CodeListAdapter(requireContext(), R.layout.code_item, userList!!)// 将适配器与ListView关联listView.adapter = adapterlistView.setOnItemClickListener { parent, view, position, id ->val textView = view.findViewById<TextView>(R.id.user_id);val fragment = CodeShowFragment.newInstance(textView.text.toString(), "")// 执行跳转parentFragmentManager.beginTransaction().replace(R.id.viewPager, fragment).commit()val codeShowFragment = CodeShowFragment()switchFragment(codeShowFragment)}return view}// 刷新数据private fun refresh() {if(userList != null) {adapter.notifyDataSetChanged()}}// 定时器private fun timer(textView : TextView) {// 动态计算当前秒数start = MyTimeUtils.getCurrentSec()runnable = Runnable {val formattedNumber = String.format("%02d",start/1000)textView.setText(formattedNumber + "s")start = start -100if(start <0) {refresh()start= MyTimeUtils.getCurrentSec()}// 在这里设置下一次循环的延时时间，例如1秒handler.postDelayed(runnable!!, 100)}// 初始化计时器handler.postDelayed(runnable!!, 50) // 延时1秒后开始循环}@SuppressLint("SuspiciousIndentation")private fun switchFragment(fragment: Fragment) {val transaction = parentFragmentManager.beginTransaction()transaction.show(fragment)transaction.commit()}companion object {/*** Use this factory method to create a new instance of* this fragment using the provided parameters.** @param param1 Parameter 1.* @param param2 Parameter 2.* @return A new instance of fragment CodeListFragment.*/// TODO: Rename and change types and number of parameters@JvmStaticfun newInstance(param1: String, param2: String) =CodeListFragment().apply {arguments = Bundle().apply {putString(ARG_PARAM1, param1)putString(ARG_PARAM2, param2)}}}override fun onDestroyView() {println("onDestroyView")handler.removeCallbacks(runnable!!)super.onDestroyView()}
}

CodeShowFragment

作用：令牌单独展示页面的片段代码，用于页面操作功能处理。提供了定时器进行倒计时刷新令牌，和令牌删除功能。

package com.shixiaotian.totp.scan.application.fragmentsimport android.app.AlertDialog
import android.os.Bundle
import android.os.Handler
import androidx.fragment.app.Fragment
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.ProgressBar
import android.widget.TextView
import com.shixiaotian.totp.scan.application.R
import com.shixiaotian.totp.scan.application.db.DatabaseHelper
import com.shixiaotian.totp.scan.application.tools.EncodeTools
import com.shixiaotian.totp.scan.application.tools.MyTimeUtils// TODO: Rename parameter arguments, choose names that match
// the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
private const val ARG_PARAM1 = "param1"
private const val ARG_PARAM2 = "param2"/*** A simple [Fragment] subclass.* Use the [CodeShowFragment.newInstance] factory method to* create an instance of this fragment.*/
class CodeShowFragment : Fragment() {private var codeView: TextView? =null// TODO: Rename and change types of parametersprivate var param1: String? = nullprivate var param2: String? = nullprivate var start: Long = 30000private val handler = Handler()private var runnable: Runnable? = nullprivate var secretKey: String =""private lateinit var progressBar: ProgressBaroverride fun onCreate(savedInstanceState: Bundle?) {super.onCreate(savedInstanceState)arguments?.let {param1 = it.getString(ARG_PARAM1)param2 = it.getString(ARG_PARAM2)}}override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,savedInstanceState: Bundle?): View? {// Inflate the layout for this fragmentvar id: String? = param1if(id == null) {id = "0"}// 查询数据库val dbHelper = DatabaseHelper(requireContext())val user = dbHelper.getUser(id.toInt())val view = inflater.inflate(R.layout.fragment_code_show, container, false)// 初始化进度条progressBar = view.findViewById<ProgressBar>(R.id.progressBar)// 设置进度条的最大值progressBar.max = 30000// 设置当前进度progressBar.progress = 30000// 显示进度条progressBar.visibility = ProgressBar.VISIBLEval showIssuerTextView = view.findViewById<TextView>(R.id.showIssuerTextView)val usernameView = view.findViewById<TextView>(R.id.showUsernameTextView)codeView = view.findViewById<TextView>(R.id.showCodeView)val timeView3 = view.findViewById<TextView>(R.id.showTimeView)if(user != null) {secretKey = user!!.getSecretKey();// 开启个线程，动态计算密钥，并更新到ui界面showIssuerTextView.setText(user.getIssuer())usernameView.setText(user.getUsername())if (codeView != null) {codeView!!.setText(EncodeTools.encode(user.getSecretKey()))}timer(timeView3)}// 删除按钮val deleteButton = view.findViewById<TextView>(R.id.deleteButton)deleteButton.setOnClickListener {showDeleteConfirmationDialog(id)}return view}private fun refresh() {codeView!!.setText(EncodeTools.encode(secretKey))}private fun timer(textView : TextView) {// 动态计算当前秒数start = MyTimeUtils.getCurrentSec()runnable = Runnable {val formattedNumber = String.format("%02d",start/1000)textView.setText(formattedNumber + "s")progressBar.setProgress(start.toInt());start = start -100if(start < 0) {start= MyTimeUtils.getCurrentSec()var refreshRunnable =  Runnable {refresh()}Thread(refreshRunnable).start()}// 在这里设置下一次循环的延时时间，例如1秒handler.postDelayed(runnable!!, 100)}// 初始化计时器handler.postDelayed(runnable!!, 50) // 延时1秒后开始循环}fun showDeleteConfirmationDialog(deleteId : String) {val builder = AlertDialog.Builder(context)builder.setMessage("确定要删除吗？").setPositiveButton("Yes") { dialog, id ->// 删除操作val dbHelper = DatabaseHelper(requireContext())dbHelper.deleteUser(deleteId.toInt())val codeListFragment = CodeListFragment()parentFragmentManager.beginTransaction().replace(R.id.viewPager, codeListFragment).commit()}.setNegativeButton("No") { dialog, id ->// 取消操作，对话框不会被关闭}.setCancelable(false)val alert = builder.create()alert.show()}companion object {/*** Use this factory method to create a new instance of* this fragment using the provided parameters.** @param param1 Parameter 1.* @param param2 Parameter 2.* @return A new instance of fragment CodeShowFragment.*/// TODO: Rename and change types and number of parameters@JvmStaticfun newInstance(param1: String, param2: String) =CodeShowFragment().apply {arguments = Bundle().apply {putString(ARG_PARAM1, param1)putString(ARG_PARAM2, param2)}}}override fun onDestroyView() {if(handler!= null && runnable != null) {handler.removeCallbacks(runnable!!)}super.onDestroyView()}}

EncodeTools

作用：软件核心功能，调用jboss包的otp算法，对密钥进行运算，得出动态令牌。解析二维码扫描出的totp链接信息，转换成user实体提供软件运行

package com.shixiaotian.totp.scan.application.toolsimport com.shixiaotian.totp.scan.application.vo.User
import org.jboss.aerogear.security.otp.Totpclass EncodeTools {companion object {@JvmStaticfun encode(secretKey: String,timeStep: Long = 30,digits: Int = 6,algorithm: String = "SHA1"): String? {if (secretKey == null || secretKey.isBlank()) {return ""}try {val totp = Totp(secretKey);var result = totp.now();return result;} catch (e: Exception) {return "ERROR SK"}}@JvmStaticfun decode(uri: String): User? {if(uri.isEmpty()) {return null}if(!uri.startsWith("otpauth://totp/")) {return null}try {var uriContentIndex = uri.indexOf("otpauth://totp/");var uriContent = uri.subSequence(15, uri.length);val secContents = uriContent.split(":");var issuer = secContents.get(0);var otherContent = secContents.get(1)val secOtherContent= otherContent.split("?")var username = secOtherContent.get(0)var thOtherContent = secOtherContent.get(1)val fthOtherContent = thOtherContent.split("&")var secretKeyContent = fthOtherContent.get(0)var secretKey = secretKeyContent.split("=").get(1)var user = User(0, username, secretKey, issuer)return user}catch (e: Exception) {return null}}}}

FirstRunTools

作用：检测软件是否为第一次安装使用，该段代码不完全适用，建议使用者进行改造，或者移除

package com.shixiaotian.totp.scan.application.toolsimport android.content.Context
import android.content.SharedPreferences
import com.shixiaotian.totp.scan.application.common.MyConstantsclass FirstRunTools {companion object {@JvmStatic fun isFirstRun(context: Context): Boolean {val prefs: SharedPreferences = context.getSharedPreferences(MyConstants.firstRunTag, Context.MODE_PRIVATE)val isFirstTime = prefs.getBoolean(MyConstants.firstRunTag + "isFirstTime", true)if (isFirstTime) {val editor = prefs.edit()editor.putBoolean(MyConstants.firstRunTag + "isFirstTime", false)editor.apply()return true}return false}}
}

MyTimeUtils

作用：时间工具，因为totp是每30秒计算一次，而每次进入软件的时间不同，该功能用于纠正进入的时间差，让令牌刷新倒计时进入精确的时间区间。

package com.shixiaotian.totp.scan.application.toolsimport android.icu.util.Calendarclass MyTimeUtils {companion object {@JvmStatic fun getCurrentSec(): Long {// 获取当前时间的毫秒数val currentTimeMillis = System.currentTimeMillis()// 创建Calendar实例val calendar = Calendar.getInstance()// 设置Calendar的时间为当前时间calendar.timeInMillis = currentTimeMillis// 将秒和毫秒字段重置为0calendar.set(Calendar.SECOND, 0)calendar.set(Calendar.MILLISECOND, 0)// 当前分钟的开始时间的毫秒数val startOfCurrentMinuteMillis = calendar.timeInMillis// 已过去的毫秒数val elapsedMillis = currentTimeMillis - startOfCurrentMinuteMillis// 已过去的秒数//val elapsedSeconds = elapsedMillis / 1000if(elapsedMillis > 30000) {return 60000 - elapsedMillis;} else {return 30000 - elapsedMillis;}}}
}

User

作用：作为数据传输和存储的实体，存储用户的令牌等相关信息

package com.shixiaotian.totp.scan.application.voclass User {private var id : Int = 0private var username : String=""private var secretKey : String=""private var issuer : String=""private var code : String=""constructor(id: Int, username: String, secretKey: String, issuer: String) {this.id = idthis.username = usernamethis.secretKey = secretKeythis.issuer = issuer}fun getId() : Int {return id}fun setId(id : Int) {this.id = id}fun getUsername() : String {return username}fun setUsername(username : String) {this.username = username}fun getSecretKey() : String {return secretKey}fun setSecretKey(secretKey : String) {this.secretKey = secretKey}fun getCode() : String {return code}fun setCode(code : String) {this.code = code}fun getIssuer() : String {return issuer}fun setIssuer(issuer : String) {this.issuer = issuer}
}

CodeListAdapter

作用：适配列表内每一个数据，为令牌动态计算提供适配

package com.shixiaotian.totp.scan.applicationimport android.content.Context
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.ArrayAdapter
import android.widget.TextView
import com.shixiaotian.totp.scan.application.tools.EncodeTools
import com.shixiaotian.totp.scan.application.vo.User/*** 动态码列表内容适配器*/
class CodeListAdapter (context: Context, val resourceId: Int, data: List<User>) : ArrayAdapter<User>(context, resourceId, data) {override fun getView(position: Int, convertView: View?, parent: ViewGroup): View {val view = LayoutInflater.from(context).inflate(resourceId, parent, false)val userId: TextView = view.findViewById(R.id.user_id)val issuer: TextView = view.findViewById(R.id.user_issuer)val username: TextView = view.findViewById(R.id.user_username)val userSecretKey: TextView = view.findViewById(R.id.user_secretKey)val userCode: TextView = view.findViewById(R.id.user_code)val user = getItem(position)if (user!=null){userId.text = user.getId().toString()issuer.text = user.getIssuer()username.text = user.getUsername()userSecretKey.text = user.getSecretKey()var code = EncodeTools.encode(user.getSecretKey()) as Stringuser.setCode(code)userCode.text = user.getCode()}return view}
}

MainActivity

作用：添加主页面上基本的按钮监听

package com.shixiaotian.totp.scan.applicationimport android.os.Bundle
import android.view.View
import androidx.activity.enableEdgeToEdge
import androidx.appcompat.app.AppCompatActivity
import androidx.core.view.ViewCompat
import androidx.core.view.WindowInsetsCompat
import androidx.fragment.app.FragmentManager
import com.shixiaotian.totp.scan.application.fragments.CodeAddFragment
import com.shixiaotian.totp.scan.application.fragments.CodeListFragment
import com.shixiaotian.totp.scan.application.db.DatabaseHelper
import com.shixiaotian.totp.scan.application.tools.FirstRunTools
import net.sqlcipher.database.SQLiteDatabaseclass MainActivity : AppCompatActivity() {private lateinit var listButton: Viewprivate lateinit var addButton: Viewprivate lateinit var fragmentManager: FragmentManageroverride fun onCreate(savedInstanceState: Bundle?) {super.onCreate(savedInstanceState)enableEdgeToEdge()setContentView(R.layout.activity_main)// 初始化预处理init()val codeAddFragment = CodeAddFragment()val codeListFragment = CodeListFragment()fragmentManager = supportFragmentManagerfragmentManager.beginTransaction().replace(R.id.viewPager, codeListFragment).commit()// 菜单按钮监听listButton = findViewById(R.id.menuButton)listButton.setOnClickListener {fragmentManager.beginTransaction().replace(R.id.viewPager, codeListFragment).commit()}// 添加按钮监听addButton = findViewById(R.id.addButton)addButton.setOnClickListener {fragmentManager.beginTransaction().replace(R.id.viewPager, codeAddFragment).commit()}ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main)) { v, insets ->val systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars())v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom)insets}}private fun init() {SQLiteDatabase.loadLibs(this);println("---开始初始化")// 判断是否首次运行if(FirstRunTools.isFirstRun(this)) {println("---首次运行触发")val dbHelper = DatabaseHelper(this)// 初始化数据库dbHelper.initDB()dbHelper.init()}}}

activity_main.xml

作用：主页面布局

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"xmlns:app="http://schemas.android.com/apk/res-auto"xmlns:tools="http://schemas.android.com/tools"android:id="@+id/main"android:layout_width="match_parent"android:layout_height="match_parent"android:background="#3F5CB5"tools:context=".MainActivity"><RelativeLayoutandroid:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical"><LinearLayoutandroid:id="@+id/mainFragment"android:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical"><FrameLayoutandroid:id="@+id/viewPager"android:layout_width="match_parent"android:layout_height="match_parent"></FrameLayout></LinearLayout><LinearLayoutandroid:layout_width="match_parent"android:layout_height="200px"android:layout_alignParentBottom="true"android:background="#ffffff"android:orientation="horizontal"><ImageViewandroid:id="@+id/menuButton"android:layout_width="wrap_content"android:layout_height="match_parent"android:layout_weight="1"android:background="#20212E"android:gravity="center_horizontal"android:src="@android:drawable/ic_menu_search"android:layout_marginRight="5px"android:textSize="30sp" /><ImageViewandroid:id="@+id/addButton"android:layout_width="wrap_content"android:layout_height="match_parent"android:layout_weight="1"android:background="#20212E"android:gravity="center_horizontal"android:src="@android:drawable/ic_menu_add"android:layout_marginLeft="5px"android:textSize="30sp" /></LinearLayout></RelativeLayout></androidx.constraintlayout.widget.ConstraintLayout>

code_item.xml

作用：令牌列表每一个令牌的布局

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:id="@+id/User"android:layout_width="match_parent"android:layout_height="wrap_content"android:orientation="vertical" ><LinearLayoutandroid:layout_width="match_parent"android:layout_height="wrap_content"android:orientation="vertical" ><TextViewandroid:id="@+id/user_id"android:layout_width="0px"android:layout_height="0px"android:layout_gravity="left"android:visibility="invisible"/><TextViewandroid:id="@+id/user_secretKey"android:layout_width="0px"android:layout_height="0px"android:layout_gravity="center_vertical"android:visibility="invisible"/><TextViewandroid:id="@+id/user_issuer"android:layout_width="wrap_content"android:layout_height="wrap_content"android:textAppearance="?android:attr/textAppearanceListItemSmall"android:gravity="center_vertical"android:paddingStart="?android:attr/listPreferredItemPaddingStart"android:paddingEnd="?android:attr/listPreferredItemPaddingEnd"android:minHeight="?android:attr/listPreferredItemHeightSmall"android:textSize="35sp"android:text="apple"/><TextViewandroid:id="@+id/user_username"android:layout_width="wrap_content"android:layout_height="wrap_content"android:textAppearance="?android:attr/textAppearanceListItemSmall"android:gravity="center_vertical"android:paddingStart="?android:attr/listPreferredItemPaddingStart"android:paddingEnd="?android:attr/listPreferredItemPaddingEnd"android:minHeight="?android:attr/listPreferredItemHeightSmall"android:textSize="25sp"android:text="[e-mail]"/><TextViewandroid:id="@+id/user_code"android:layout_width="wrap_content"android:layout_height="wrap_content"android:gravity="center_vertical"android:layout_gravity="center"android:textColor="#000000"android:text="665277"android:textSize="55sp"android:textStyle="bold"/></LinearLayout>
</LinearLayout>

fragment_code_add.xml

作用：添加令牌页面，手动添加或者，触发zxing扫码添加

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"xmlns:tools="http://schemas.android.com/tools"android:layout_width="match_parent"android:layout_height="match_parent"android:background="#ffffff"tools:context=".fragments.CodeAddFragment"><!-- TODO: Update blank fragment layout --><LinearLayoutandroid:layout_margin="100px"android:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical"><TextViewandroid:id="@+id/addNameView"android:layout_width="match_parent"android:layout_height="wrap_content"android:textSize="40sp"android:textStyle="bold"android:text="Username" /><EditTextandroid:id="@+id/addUsernameText"android:layout_width="match_parent"android:layout_height="wrap_content"android:maxLength="10"android:inputType="text"android:textSize="30sp"/><TextViewandroid:id="@+id/addSecretKeyView"android:layout_width="match_parent"android:layout_height="wrap_content"android:textSize="40sp"android:textStyle="bold"android:text="SecretKey" /><EditTextandroid:id="@+id/addSecretKeyText"android:layout_width="match_parent"android:layout_height="wrap_content"android:maxLength="100"android:textSize="30sp"android:inputType="text" /><TextViewandroid:id="@+id/addIssuerView"android:layout_width="match_parent"android:layout_height="wrap_content"android:textSize="40sp"android:textStyle="bold"android:text="Issuer" /><EditTextandroid:id="@+id/addIssuerText"android:layout_width="match_parent"android:layout_height="wrap_content"android:maxLength="10"android:inputType="text"android:textSize="30sp"/><TextViewandroid:id="@+id/saveButton"android:layout_width="match_parent"android:layout_height="100sp"android:background="#A62641"android:gravity="center"android:layout_marginTop="100px"android:textColor="#ffffff"android:text="Save"android:textSize="50sp" /><TextViewandroid:id="@+id/cameraButton"android:layout_width="match_parent"android:layout_height="100sp"android:layout_marginTop="100px"android:background="#20212E"android:gravity="center"android:text="Scan"android:textColor="#ffffff"android:textSize="50sp" /></LinearLayout>
</FrameLayout>

fragment_code_list.xml

作用：提供令牌快速查看列表，和选择单个令牌进行操作的功能

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"xmlns:tools="http://schemas.android.com/tools"android:id="@+id/code_list"android:layout_width="match_parent"android:layout_height="match_parent"tools:context=".fragments.CodeListFragment"><LinearLayoutandroid:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical"><TextViewandroid:id="@+id/textView3"android:layout_width="match_parent"android:layout_height="101dp"android:gravity="center"android:background="#312F2F"android:text="30s"android:textColor="#ffffff"android:textColorLink="#FFFFFF"android:textSize="60sp" /><ListViewandroid:id="@+id/listView"android:layout_width="match_parent"android:layout_height="wrap_content"android:layout_weight="1"android:background="#ffffff"android:divider="#000000"android:dividerHeight="1dp" /><Viewandroid:layout_width="match_parent"android:layout_height="200px"android:background="#666666"></View></LinearLayout>
</FrameLayout>

fragment_code_show.xml

作用：动态令牌展示页面，提供令牌查看和删除功能

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"xmlns:tools="http://schemas.android.com/tools"android:id="@+id/code_show"android:layout_width="match_parent"android:layout_height="match_parent"android:background="#312F2F"tools:context=".fragments.CodeShowFragment"><!-- TODO: Update blank fragment layout --><LinearLayoutandroid:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical"><TextViewandroid:id="@+id/showIssuerTextView"android:layout_width="match_parent"android:layout_height="wrap_content"android:gravity="center_horizontal"android:layout_marginTop="100px"android:text="steam"android:textColor="#ffffff"android:textColorLink="#FFFFFF"android:textSize="75sp" /><TextViewandroid:id="@+id/showUsernameTextView"android:layout_width="match_parent"android:layout_height="wrap_content"android:gravity="center_horizontal"android:layout_marginTop="30px"android:text="[e-mail]"android:textColor="#ffffff"android:textColorLink="#FFFFFF"android:textSize="25sp" /><TextViewandroid:id="@+id/showTimeView"android:layout_width="match_parent"android:layout_height="101dp"android:gravity="center"android:background="#312F2F"android:text="30s"android:textColor="#ffffff"android:textColorLink="#FFFFFF"android:layout_marginTop="20px"android:textSize="70sp" /><ProgressBarandroid:id="@+id/progressBar"style="?android:attr/progressBarStyleHorizontal"android:layout_width="match_parent"android:layout_height="45dp"android:max="100"android:progress="10"android:progressDrawable="@drawable/progress_bar_color" /><TextViewandroid:id="@+id/showCodeView"android:layout_width="match_parent"android:layout_height="wrap_content"android:freezesText="false"android:gravity="center_horizontal"android:layout_marginTop="50px"android:text="9TXTSY"android:textColor="#ffffff"android:textColorLink="#FFFFFF"android:textSize="80sp" /><TextViewandroid:id="@+id/deleteButton"android:layout_alignParentBottom="true"android:layout_width="match_parent"android:layout_height="100sp"android:background="#20212E"android:gravity="center"android:layout_margin="50px"android:textColor="#ffffff"android:text="Delete"android:textSize="50sp" /></LinearLayout></FrameLayout>

AndroidManifest.xml

作用：添加相机权限，设定zxing相机扫码activity相机方向等相关数据

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"xmlns:tools="http://schemas.android.com/tools"><uses-permission android:name="android.permission.CAMERA" /><applicationandroid:allowBackup="true"android:dataExtractionRules="@xml/data_extraction_rules"android:fullBackupContent="@xml/backup_rules"android:icon="@android:drawable/ic_lock_lock"android:label="@string/app_name"android:roundIcon="@mipmap/ic_launcher_round"android:supportsRtl="true"android:theme="@style/Theme.MyApplication"tools:targetApi="31"><activityandroid:name=".MainActivity"android:exported="true"><intent-filter><action android:name="android.intent.action.MAIN" /><category android:name="android.intent.category.LAUNCHER" /></intent-filter></activity><activity android:name="com.journeyapps.barcodescanner.CaptureActivity"android:screenOrientation="fullSensor"tools:replace="screenOrientation" /></application></manifest>