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hankexodus1hankexodus1
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ZKMA demo app first commit.
Features include: - Create seed - Restore seed - Clear seed - Sign message
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‎.gitignore

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.gradle/*
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.idea/*
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local.properties
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.DS_Store

‎app/.gitignore

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/build

‎app/build.gradle

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apply plugin: 'com.android.application'
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apply plugin: 'kotlin-android'
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apply plugin: 'kotlin-android-extensions'
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android {
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compileSdkVersion 29
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buildToolsVersion "29.0.3"
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defaultConfig {
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applicationId "com.htc.zion.demoapp"
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minSdkVersion 26
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targetSdkVersion 29
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versionCode 1
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versionName "1.0"
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testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
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}
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buildTypes {
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release {
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minifyEnabled false
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proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
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}
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}
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compileOptions {
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sourceCompatibility JavaVersion.VERSION_1_8
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targetCompatibility JavaVersion.VERSION_1_8
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}
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kotlinOptions {
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jvmTarget = '1.8'
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}
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buildFeatures {
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viewBinding = true
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}
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}
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allprojects {
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repositories {
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flatDir {
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dirs 'libs'
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}
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}
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}
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dependencies {
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implementation fileTree(dir: "libs", include: ["*.jar"])
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implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
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implementation 'androidx.core:core-ktx:1.3.0'
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implementation 'androidx.appcompat:appcompat:1.1.0'
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implementation 'com.google.android.material:material:1.1.0'
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implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
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implementation 'androidx.navigation:navigation-fragment-ktx:2.3.0'
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implementation 'androidx.navigation:navigation-ui-ktx:2.3.0'
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testImplementation 'junit:junit:4.12'
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androidTestImplementation 'androidx.test.ext:junit:1.1.1'
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androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
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implementation 'com.google.code.gson:gson:2.8.6'
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implementation(name:'HtcWalletSDK-Htc_partner1-release', ext:'aar')
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}

‎app/libs/HtcWalletSDK-Htc_partner1-release.aar

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‎app/proguard-rules.pro

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# Add project specific ProGuard rules here.
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# You can control the set of applied configuration files using the
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# proguardFiles setting in build.gradle.
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#
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# For more details, see
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# http://developer.android.com/guide/developing/tools/proguard.html
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# If your project uses WebView with JS, uncomment the following
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# and specify the fully qualified class name to the JavaScript interface
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# class:
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#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
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# public *;
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#}
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# Uncomment this to preserve the line number information for
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# debugging stack traces.
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#-keepattributes SourceFile,LineNumberTable
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# If you keep the line number information, uncomment this to
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# hide the original source file name.
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#-renamesourcefileattribute SourceFile

‎app/src/androidTest/java/com/htc/zion/demoapp/ExampleInstrumentedTest.kt

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package com.htc.zion.demoapp
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import androidx.test.platform.app.InstrumentationRegistry
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import androidx.test.ext.junit.runners.AndroidJUnit4
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import org.junit.Test
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import org.junit.runner.RunWith
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import org.junit.Assert.*
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/**
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* Instrumented test, which will execute on an Android device.
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*
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* See [testing documentation](http://d.android.com/tools/testing).
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*/
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@RunWith(AndroidJUnit4::class)
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class ExampleInstrumentedTest {
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@Test
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fun useAppContext() {
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// Context of the app under test.
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val appContext = InstrumentationRegistry.getInstrumentation().targetContext
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assertEquals("com.htc.zion.demoapp", appContext.packageName)
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}
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}

‎app/src/main/AndroidManifest.xml

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<?xml version="1.0" encoding="utf-8"?>
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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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package="com.htc.zion.demoapp">
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<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
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<application
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android:allowBackup="true"
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android:icon="@mipmap/ic_launcher"
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android:label="@string/app_name"
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android:roundIcon="@mipmap/ic_launcher_round"
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android:supportsRtl="true"
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android:theme="@style/AppTheme">
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<activity
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android:name=".MainActivity"
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android:label="@string/app_name"
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android:theme="@style/AppTheme.NoActionBar">
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<intent-filter>
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<action android:name="android.intent.action.MAIN" />
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<category android:name="android.intent.category.LAUNCHER" />
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</intent-filter>
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</activity>
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</application>
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</manifest>

‎app/src/main/java/com/htc/zion/demoapp/FirstFragment.kt

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package com.htc.zion.demoapp
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import android.app.Activity.RESULT_OK
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import android.content.Context
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import android.content.Intent
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import android.os.Bundle
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import android.util.Log
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import android.view.LayoutInflater
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import android.view.View
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import android.view.ViewGroup
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import androidx.fragment.app.Fragment
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import com.google.android.material.snackbar.Snackbar
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import com.google.gson.Gson
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import com.htc.htcwalletsdk.Native.Type.ByteArrayHolder
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import com.htc.zion.demoapp.Utils.Companion.LOG_TAG
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import com.htc.zion.demoapp.Utils.Companion.convertToHex
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import com.htc.zion.demoapp.Utils.Companion.sha256
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import com.htc.zion.demoapp.data.EthereumJsonTemplate
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import com.htc.zion.demoapp.data.Message
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import com.htc.zion.demoapp.databinding.FragmentFirstBinding
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import kotlinx.android.synthetic.main.fragment_first.*
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import java.util.concurrent.Executors
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/**
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* A simple [Fragment] subclass as the default destination in the navigation.
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*/
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class FirstFragment : Fragment() {
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val SELECT_PHOTO = 1
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val COIN_TYPE_ETHEREUM = 60
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private val tzExecutor by lazy {
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Executors.newSingleThreadExecutor()
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}
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override fun onCreateView(
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inflater: LayoutInflater,
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container: ViewGroup?,
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savedInstanceState: Bundle?
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): View? {
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// Inflate the layout for this fragment
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val binding = FragmentFirstBinding.inflate(inflater, container, false)
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return binding.root
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}
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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initZkmaSdk(this.requireContext())
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}
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override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
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super.onViewCreated(view, savedInstanceState)
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btn_create_seed.setOnClickListener {
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tzExecutor.execute {
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val uniqueId = Utils.getZkmaSdkUniqueId(view.context)
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if (ZkmaSdkHelper.isSeedExists(uniqueId)) {
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activity?.runOnUiThread {
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Snackbar.make(view, R.string.msg_seed_exists, Snackbar.LENGTH_LONG)
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.setAction("Action", null).show()
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}
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} else {
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val result = ZkmaSdkHelper.createSeed(uniqueId)
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Log.i(LOG_TAG, "createSeed(), result=$result")
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}
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}
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}
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btn_restore_seed.setOnClickListener {
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tzExecutor.execute {
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val uniqueId = Utils.getZkmaSdkUniqueId(view.context)
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if (ZkmaSdkHelper.isSeedExists(uniqueId)) {
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activity?.runOnUiThread {
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Snackbar.make(view, R.string.msg_seed_exists, Snackbar.LENGTH_LONG)
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.setAction("Action", null).show()
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}
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} else {
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val result = ZkmaSdkHelper.restoreSeed(uniqueId)
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Log.i(LOG_TAG, "restoreSeed(), result=$result")
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}
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}
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}
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btn_sign_photo.setOnClickListener {
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val intent = Intent(
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Intent.ACTION_PICK,
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android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI
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)
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intent.type = "image/*"
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startActivityForResult(intent, SELECT_PHOTO)
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}
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}
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override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
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super.onActivityResult(requestCode, resultCode, data)
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if (requestCode == SELECT_PHOTO && resultCode == RESULT_OK) {
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data?.data?.let { uri ->
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tzExecutor.execute {
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Utils.loadImage(this.requireContext(), uri)?.let { bitmap ->
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bitmap.convertToHex()
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}?.let { bitmapHex ->
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bitmapHex.sha256()
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}?.let { bitmapHash ->
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val photoData = EthereumJsonTemplate(Message(bitmapHash))
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Log.i(LOG_TAG, "EthereumJson=$photoData")
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val sig = ByteArrayHolder()
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val result = ZkmaSdkHelper.signMessage(
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Utils.getZkmaSdkUniqueId(this.requireContext()),
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COIN_TYPE_ETHEREUM,
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Gson().toJson(photoData),
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sig
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)
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Log.i(
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LOG_TAG,
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"signMessage(), result=$result, sig=${sig.byteArray.toString()}"
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)
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}
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}
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}
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}
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}
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private fun initZkmaSdk(context: Context) {
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tzExecutor.execute {
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ZkmaSdkHelper.initSdk(context)
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}
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}
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}

‎app/src/main/java/com/htc/zion/demoapp/MainActivity.kt

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package com.htc.zion.demoapp
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import android.Manifest
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import android.app.Activity
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import android.content.pm.PackageManager
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import android.os.Bundle
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import android.util.Log
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import android.view.Menu
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import android.view.MenuItem
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import android.widget.Toast
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import androidx.appcompat.app.AppCompatActivity
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import androidx.core.app.ActivityCompat
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import com.google.android.material.snackbar.Snackbar
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import com.htc.zion.demoapp.databinding.ActivityMainBinding
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import kotlinx.android.synthetic.main.activity_main.*
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import java.util.concurrent.Executors
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class MainActivity : AppCompatActivity() {
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private val tzExecutor by lazy {
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Executors.newSingleThreadExecutor()
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}
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// Storage Permissions
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private val REQUEST_EXTERNAL_STORAGE = 1
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private val PERMISSIONS_STORAGE = arrayOf(Manifest.permission.READ_EXTERNAL_STORAGE)
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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val binding = ActivityMainBinding.inflate(this.layoutInflater)
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setContentView(binding.root)
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setSupportActionBar(toolbar)
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fab.setOnClickListener { view ->
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Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
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.setAction("Action", null).show()
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}
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verifyStoragePermissions(this)
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}
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override fun onCreateOptionsMenu(menu: Menu): Boolean {
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// Inflate the menu; this adds items to the action bar if it is present.
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menuInflater.inflate(R.menu.menu_main, menu)
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return true
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}
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override fun onOptionsItemSelected(item: MenuItem): Boolean {
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// Handle action bar item clicks here. The action bar will
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// automatically handle clicks on the Home/Up button, so long
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// as you specify a parent activity in AndroidManifest.xml.
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return when (item.itemId) {
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R.id.action_clear_seed -> {
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tzExecutor.execute {
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val uniqueId = Utils.getZkmaSdkUniqueId(this)
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if (ZkmaSdkHelper.isSeedExists(uniqueId)) {
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ZkmaSdkHelper.clearSeed(uniqueId)
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} else {
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Log.w(Utils.LOG_TAG, "clearSeed(), uniqueId is illegal!")
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}
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}
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true
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}
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else -> super.onOptionsItemSelected(item)
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}
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}
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override fun onRequestPermissionsResult(
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requestCode: Int,
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permissions: Array<out String>,
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grantResults: IntArray
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) {
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super.onRequestPermissionsResult(requestCode, permissions, grantResults)
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if (requestCode == REQUEST_EXTERNAL_STORAGE) {
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if (grantResults[0] != PackageManager.PERMISSION_GRANTED) {
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Toast.makeText(this, "Permission denied!", Toast.LENGTH_LONG)
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.show()
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}
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}
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}
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private fun verifyStoragePermissions(activity: Activity) {
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// Check if we have read permission
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val permission =
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ActivityCompat.checkSelfPermission(activity, Manifest.permission.READ_EXTERNAL_STORAGE)
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if (permission != PackageManager.PERMISSION_GRANTED) {
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// We don't have permission so prompt the user
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ActivityCompat.requestPermissions(
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activity,
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PERMISSIONS_STORAGE,
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REQUEST_EXTERNAL_STORAGE
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)
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}
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}
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}

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