Merge pull request #300 from Concordium/android-example-account

Android example account

concordium-android-sdk/pom.xml

@@ -176,6 +176,31 @@
                 </dependencies>
                 <extensions>true</extensions>
             </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-resources-plugin</artifactId>
+                <version>3.3.1</version>
+                <executions>
+                    <execution>
+                        <id>copy-aar-after-build</id>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>copy-resources</goal>
+                        </goals>
+                        <configuration>
+                            <outputDirectory>${basedir}/../concordium-android-sdk-examples/app/libs</outputDirectory>
+                            <resources>
+                                <resource>
+                                    <directory>${basedir}/target</directory>
+                                    <includes>
+                                        <include>concordium-android-sdk.aar</include>
+                                    </includes>
+                                </resource>
+                            </resources>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
         </plugins>
     </build>
 

concordium-android-wallet-example/.gitignore

@@ -0,0 +1,11 @@
+*.iml
+.gradle
+/local.properties
+/.idea
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+local.properties
+app/libs

concordium-android-wallet-example/README.md

@@ -0,0 +1,7 @@
+# Wallet example for Android applications
+
+This folder contains a small project for an Android app that uses the Concordium Android SDK.
+
+For the app to build, one must add the Android library (AAR file), to the `app/libs` folder. This can either be done by downloading it from the repository's releases, or building the [concordium-android-sdk](../concordium-android-sdk/) with `mvn install`. (This command will copy the library on `app/libs`)
+
+The app is able to take a BIP39 seed phrase, and use that to create/recover an identity, create an account and send transfers using the created account.

concordium-android-wallet-example/app/.gitignore

@@ -0,0 +1 @@
+/build

concordium-android-wallet-example/app/build.gradle.kts

@@ -0,0 +1,88 @@
+plugins {
+    id("com.android.application")
+    id("org.jetbrains.kotlin.android")
+}
+
+val bundleId = "com.concordium.example.wallet"
+
+android {
+    namespace = bundleId
+    compileSdk = 34
+
+    defaultConfig {
+        applicationId = bundleId
+        minSdk = 26
+        targetSdk = 34
+        versionCode = 1
+        versionName = "1.0"
+
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+        vectorDrawables {
+            useSupportLibrary = true
+        }
+    }
+
+    buildTypes {
+        release {
+            isMinifyEnabled = false
+            proguardFiles(getDefaultProguardFile("proguard-android-optimize.txt"), "proguard-rules.pro")
+        }
+    }
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_1_8
+        targetCompatibility = JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = "1.8"
+    }
+    buildFeatures {
+        compose = true
+    }
+    composeOptions {
+        kotlinCompilerExtensionVersion = "1.5.1"
+    }
+    packaging {
+        resources {
+            excludes += "/META-INF/{AL2.0,LGPL2.1}"
+            pickFirsts += "com/google/protobuf/*"
+        }
+    }
+}
+
+dependencies {
+    implementation("io.grpc:grpc-okhttp:1.60.0")
+    implementation("io.grpc:grpc-protobuf:1.60.0")
+    implementation("io.grpc:grpc-stub:1.60.0")
+    implementation("androidx.browser:browser:1.7.0")
+    implementation(files("libs/concordium-android-sdk.aar"))
+    compileOnly("org.apache.tomcat:annotations-api:6.0.53") // necessary for Java 9+
+    implementation ("com.fasterxml.jackson.core:jackson-core:2.16.1")
+    implementation ("com.fasterxml.jackson.datatype:jackson-datatype-jsr310:2.16.1")
+    implementation ("com.fasterxml.jackson.datatype:jackson-datatype-jdk8:2.16.1")
+    implementation("com.fasterxml.jackson.module:jackson-module-kotlin:2.16.1")
+
+    implementation("com.squareup.retrofit2:retrofit:2.9.0")
+    implementation("com.squareup.retrofit2:converter-jackson:2.9.0")
+
+    implementation("androidx.core:core-ktx:1.12.0")
+    implementation("androidx.lifecycle:lifecycle-runtime-ktx:2.7.0")
+    implementation("androidx.activity:activity-compose:1.8.2")
+    implementation(platform("androidx.compose:compose-bom:2023.08.00"))
+    implementation("androidx.compose.ui:ui")
+    implementation("androidx.compose.ui:ui-graphics")
+    implementation("androidx.compose.ui:ui-tooling-preview")
+    implementation("androidx.compose.material3:material3")
+    testImplementation("junit:junit:4.13.2")
+    androidTestImplementation("androidx.test.ext:junit:1.1.5")
+    androidTestImplementation("androidx.test.espresso:espresso-core:3.5.1")
+    androidTestImplementation(platform("androidx.compose:compose-bom:2023.08.00"))
+    androidTestImplementation("androidx.compose.ui:ui-test-junit4")
+    debugImplementation("androidx.compose.ui:ui-tooling")
+    debugImplementation("androidx.compose.ui:ui-test-manifest")
+
+    implementation("cash.z.ecc.android:kotlin-bip39:1.0.7")
+    implementation("commons-codec:commons-codec:1.16.0")
+    implementation("org.bitcoinj:bitcoinj-core:0.16.2") {
+        exclude(group="com.google.protobuf")
+    }
+}

concordium-android-wallet-example/app/proguard-rules.pro

@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

concordium-android-wallet-example/app/src/main/AndroidManifest.xml

@@ -0,0 +1,47 @@
+<?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.INTERNET" /> <!-- Protection level: normal -->
+
+    <application
+        android:allowBackup="true"
+        android:dataExtractionRules="@xml/data_extraction_rules"
+        android:fullBackupContent="@xml/backup_rules"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.Androidsdkexample"
+        tools:targetApi="34">
+        <activity android:name="com.concordium.example.wallet.activities.SeedPhraseActivity" />
+        <activity android:name="com.concordium.example.wallet.activities.NewIdentityActivity" />
+        <activity
+            android:name="com.concordium.example.wallet.activities.IssueIdentityActivity"
+            android:exported="true">
+            <intent-filter android:label="schemefilter">
+                <action android:name="android.intent.action.VIEW" />
+
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+
+                <data
+                    android:host="identity-issuer"
+                    android:scheme="concordiumwallet-example" />
+            </intent-filter>
+        </activity>
+        <activity android:name="com.concordium.example.wallet.activities.IdentityConfirmationActivity" />
+        <activity android:name="com.concordium.example.wallet.activities.RecoverIdentityActivity" />
+        <activity android:name="com.concordium.example.wallet.activities.IdentityActivity" />
+        <activity android:name="com.concordium.example.wallet.activities.AccountActivity" />
+        <activity
+            android:name="com.concordium.example.wallet.activities.RouterActivity"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

concordium-android-wallet-example/app/src/main/java/com/concordium/example/wallet/Constants.kt

@@ -0,0 +1,18 @@
+package com.concordium.example.wallet
+
+import com.concordium.sdk.crypto.wallet.Network
+
+object Constants {
+    // These indices are set to 0, because this wallet only does 1 identity/account, but in a
+    // proper wallet with multiple identities/account, these would be actual variables.
+    const val IDENTITY_INDEX = 0
+    const val CREDENTIAL_COUNTER = 0
+
+    const val AR_THRESHOLD = 2L
+
+    val NETWORK = Network.TESTNET
+    const val GRPC_URL = "grpc.testnet.concordium.com"
+    const val GRPC_PORT = 20000
+    const val CALLBACK_URL = "concordiumwallet-example://identity-issuer/callback"
+    const val WALLET_PROXY_URL = "https://wallet-proxy.testnet.concordium.com"
+}

concordium-android-wallet-example/app/src/main/java/com/concordium/example/wallet/Overview.kt

@@ -0,0 +1,60 @@
+package com.concordium.example.wallet
+
+import android.content.Intent
+import androidx.activity.ComponentActivity
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.material3.Button
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.tooling.preview.Preview
+import com.concordium.example.wallet.activities.AccountActivity
+import com.concordium.example.wallet.activities.IdentityActivity
+import com.concordium.example.wallet.activities.IssueIdentityActivity
+import com.concordium.example.wallet.activities.RecoverIdentityActivity
+import com.concordium.example.wallet.activities.SeedPhraseActivity
+import com.concordium.example.wallet.ui.Container
+
+/**
+ * Preview that an overview menu, where each activity can be accessed directly.
+ * Mostly useful for testing purposes.
+ */
+@Preview(showBackground = true)
+@Composable
+fun Overview() {
+    val context = LocalContext.current
+
+    fun gotoActivity(activity: Class<out ComponentActivity>) {
+        val myIntent = Intent(context, activity)
+        context.startActivity(myIntent)
+    }
+
+    Container {
+        Column(
+            modifier = Modifier.fillMaxSize(),
+            verticalArrangement = Arrangement.Center,
+            horizontalAlignment = Alignment.CenterHorizontally
+        ) {
+            Text(text = "Example Wallet")
+            Button(onClick = { gotoActivity(SeedPhraseActivity::class.java) }) {
+                Text(text = "Go to SeedPhrase view")
+            }
+            Button(onClick = { gotoActivity(IssueIdentityActivity::class.java) }) {
+                Text(text = "Go to Identity issuance view")
+            }
+            Button(onClick = { gotoActivity(RecoverIdentityActivity::class.java) }) {
+                Text(text = "Go to Identity recovery view")
+            }
+            Button(onClick = { gotoActivity(IdentityActivity::class.java) }) {
+                Text(text = "Go to Identity view")
+            }
+            Button(onClick = { gotoActivity(AccountActivity::class.java) }) {
+                Text(text = "Go to Account view")
+            }
+        }
+    }
+}