Expose Platform specific info as expect-actual (locale, system, version)

androidApp/build.gradle.kts

@@ -15,8 +15,8 @@ android {
         targetSdk = 34
 
         applicationId = "com.mirego.kmp.boilerplate"
-        versionCode = 1
-        versionName = "0.1"
+        versionCode = project.property("versionCode") as? Int
+        versionName = project.property("versionName") as? String
     }
     buildTypes {
         debug {

androidApp/src/main/java/com/mirego/kmp/boilerplate/Greeting.kt

@@ -6,7 +6,6 @@ import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
 import androidx.compose.ui.tooling.preview.Preview
 import kotlinx.coroutines.flow.Flow
-import kotlinx.coroutines.flow.flowOf
 
 @Composable
 fun Greeting(textFlow: Flow<String>) {
@@ -15,9 +14,8 @@ fun Greeting(textFlow: Flow<String>) {
     Text(text = text)
 }
 
-@Preview
+@Preview(showSystemUi = true)
 @Composable
 fun PreviewGreeting() {
-    val textFlow = flowOf("Hello, Android 31")
-    Greeting(textFlow)
+    Greeting(Greeting().greeting())
 }

gradle.properties

@@ -9,3 +9,6 @@ android.useAndroidX=true
 kotlin.mpp.androidSourceSetLayoutVersion=2
 kotlin.mpp.enableCInteropCommonization=true
 kotlin.mpp.stability.nowarn=true
+#Version
+versionName=0.0.1
+versionCode=1

ios/Podfile.lock

@@ -1,5 +1,5 @@
 PODS:
-  - Shared (0.1)
+  - Shared (0.0.1)
   - SwiftLint (0.52.4)
 
 DEPENDENCIES:
@@ -15,7 +15,7 @@ EXTERNAL SOURCES:
     :path: "../shared"
 
 SPEC CHECKSUMS:
-  Shared: 9cee99d7ec6f327294a149403bec06a18fc5db29
+  Shared: 4d22deb908e7a9ed9a64ea2d3fcc53255a207993
   SwiftLint: 1cc5cd61ba9bacb2194e340aeb47a2a37fda00b3
 
 PODFILE CHECKSUM: 83ebf5d7b61ce65029f18160027c7392430ee27f

ios/iosApp.xcodeproj/project.pbxproj

@@ -377,7 +377,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				MARKETING_VERSION = 0.1;
+				MARKETING_VERSION = 0.0.1;
 				PRODUCT_BUNDLE_IDENTIFIER = com.mirego.kmp.boilerplate;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_VERSION = 5.0;
@@ -399,7 +399,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				MARKETING_VERSION = 0.1;
+				MARKETING_VERSION = 0.0.1;
 				PRODUCT_BUNDLE_IDENTIFIER = com.mirego.kmp.boilerplate;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_VERSION = 5.0;

shared/Shared.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |spec|
     spec.name                     = 'Shared'
-    spec.version                  = '0.1'
+    spec.version                  = '0.0.1'
     spec.homepage                 = 'https://github.com/mirego/your-project'
     spec.source                   = { :http=> ''}
     spec.authors                  = ''

shared/build.gradle.kts

@@ -10,7 +10,7 @@ plugins {
     alias(libs.plugins.ktlint)
 }
 
-version = "0.1"
+version = project.property("versionName") as String
 
 kotlin {
     jvmToolchain(17)
@@ -69,11 +69,17 @@ android {
     compileSdk = 34
     defaultConfig {
         minSdk = 21
+
+        buildConfigField("Integer", "VERSION_CODE", "${project.property("versionCode")}")
+        buildConfigField("String", "VERSION_NAME", "\"$version\"")
     }
     compileOptions {
         sourceCompatibility = JavaVersion.VERSION_17
         targetCompatibility = JavaVersion.VERSION_17
     }
+    buildFeatures {
+        buildConfig = true
+    }
 }
 
 ktlint {

shared/src/androidMain/kotlin/com/mirego/kmp/boilerplate/platform/Platform.kt

@@ -0,0 +1,25 @@
+package com.mirego.kmp.boilerplate.platform
+
+import android.os.Build
+import com.mirego.kmp.boilerplate.common.BuildConfig
+
+actual fun Platform(): Platform = AndroidPlatform()
+
+private class AndroidPlatform : Platform {
+    override val system = System(
+        name = "Android",
+        version = Build.VERSION.SDK_INT.toString()
+    )
+
+    override val locale = java.util.Locale.getDefault().let {
+        Locale(
+            languageCode = it.language,
+            regionCode = it.country
+        )
+    }
+
+    override val version = Version(
+        name = BuildConfig.VERSION_NAME,
+        code = BuildConfig.VERSION_CODE
+    )
+}

shared/src/commonMain/kotlin/com/mirego/kmp/boilerplate/Greeting.kt

@@ -1,9 +1,19 @@
 package com.mirego.kmp.boilerplate
 
+import com.mirego.kmp.boilerplate.platform.Platform
 import com.mirego.kmp.boilerplate.utils.CFlow
 import com.mirego.kmp.boilerplate.utils.wrap
 import kotlinx.coroutines.flow.flowOf
 
 class Greeting {
-    fun greeting(): CFlow<String> = flowOf("Hello, ${Platform().platform}!").wrap()
+    private val platform = Platform()
+
+    private val greetingText = buildString {
+        appendLine("Hello! 👋")
+        appendLine(platform.system)
+        appendLine(platform.locale)
+        appendLine(platform.version)
+    }
+
+    fun greeting(): CFlow<String> = flowOf(greetingText).wrap()
 }

shared/src/commonMain/kotlin/com/mirego/kmp/boilerplate/platform/Platform.kt

@@ -0,0 +1,24 @@
+package com.mirego.kmp.boilerplate.platform
+
+expect fun Platform(): Platform
+
+interface Platform {
+    val system: System
+    val locale: Locale
+    val version: Version
+}
+
+data class Locale(
+    val languageCode: String,
+    val regionCode: String?
+)
+
+data class System(
+    val name: String,
+    val version: String
+)
+
+data class Version(
+    val name: String,
+    val code: Int
+)

shared/src/iosMain/kotlin/com/mirego/kmp/boilerplate/platform/Platform.kt

@@ -0,0 +1,33 @@
+package com.mirego.kmp.boilerplate.platform
+
+import platform.Foundation.NSBundle
+import platform.Foundation.NSLocale
+import platform.Foundation.currentLocale
+import platform.Foundation.languageCode
+import platform.Foundation.regionCode
+import platform.UIKit.UIDevice
+
+actual fun Platform(): Platform = IOSPlatform()
+
+private class IOSPlatform : Platform {
+    override val system = UIDevice.currentDevice.let {
+        System(
+            name = it.systemName,
+            version = it.systemVersion
+        )
+    }
+
+    override val locale = NSLocale.currentLocale.let {
+        Locale(
+            languageCode = it.languageCode,
+            regionCode = it.regionCode
+        )
+    }
+
+    override val version = NSBundle.mainBundle().infoDictionary()!!.let {
+        Version(
+            name = it["CFBundleShortVersionString"] as String,
+            code = (it["CFBundleVersion"] as String).toInt()
+        )
+    }
+}