support multi-platform

app/build.gradle.kts

@@ -0,0 +1,39 @@
+
+plugins {
+    id("org.jetbrains.compose") version "1.0.0-beta5"
+    id("com.android.application")
+    kotlin("android")
+}
+
+group = "com.godaddy"
+version = "1.0"
+
+
+dependencies {
+    implementation(project(":color-picker"))
+    implementation ("androidx.activity:activity-compose:1.4.0")
+    implementation("com.google.android.material:material:1.4.0")
+}
+
+android {
+    compileSdkVersion(31)
+    defaultConfig {
+        applicationId = "com.godaddy.android.colorpicker"
+        minSdkVersion(21)
+        targetSdkVersion(31)
+        versionCode = 1
+        versionName = "1.0"
+    }
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_1_8
+        targetCompatibility = JavaVersion.VERSION_1_8
+    }
+    packagingOptions {
+        excludes += "/META-INF/{AL2.0,LGPL2.1}"
+    }
+    buildTypes {
+        getByName("release") {
+            isMinifyEnabled = false
+        }
+    }
+}

app/src/main/java/com/godaddy/android/colorpicker/SampleColorPickerActivity.kt

@@ -23,7 +23,6 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.ExperimentalGraphicsApi
 import androidx.compose.ui.res.stringResource
-import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import com.godaddy.android.colorpicker.theme.ComposeColorPickerTheme
 
@@ -87,7 +86,6 @@ fun ColorPreviewInfo(currentColor: Color) {
 
 
 @ExperimentalGraphicsApi
-@Preview(showBackground = true)
 @Composable
 fun DefaultPreview() {
     ComposeColorPickerTheme {
@@ -102,7 +100,6 @@ fun DefaultPreview() {
 }
 
 @ExperimentalGraphicsApi
-@Preview(showBackground = true)
 @Composable
 fun NoAlphaBarPreview() {
     ComposeColorPickerTheme {

build.gradle.kts

@@ -0,0 +1,25 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+
+buildscript {
+    repositories {
+        gradlePluginPortal()
+        google()
+        mavenCentral()
+    }
+    dependencies {
+        classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:1.5.31")
+        classpath("com.android.tools.build:gradle:4.1.3")
+        classpath("com.vanniktech:gradle-maven-publish-plugin:0.18.0")
+    }
+}
+
+group = "com.godaddy"
+version = "1.0"
+
+allprojects {
+    repositories {
+        google()
+        mavenCentral()
+        maven("https://maven.pkg.jetbrains.space/public/p/compose/dev")
+    }
+}

color-picker/build.gradle.kts

@@ -0,0 +1,66 @@
+import org.jetbrains.compose.compose
+
+plugins {
+    kotlin("multiplatform")
+    id("org.jetbrains.compose") version "1.0.0-beta5"
+    id("com.android.library")
+    id("kotlin-android-extensions")
+    id("com.vanniktech.maven.publish")
+}
+
+group = "com.godaddy"
+version = "1.0"
+
+kotlin {
+    android()
+    jvm("desktop") {
+        compilations.all {
+            kotlinOptions.jvmTarget = "11"
+        }
+    }
+    sourceSets {
+        val commonMain by getting {
+            dependencies {
+                api(compose.runtime)
+                api(compose.foundation)
+                api(compose.material)
+                implementation("com.github.ajalt.colormath:colormath:3.1.1")
+            }
+        }
+        val commonTest by getting {
+            dependencies {
+                implementation(kotlin("test"))
+            }
+        }
+        val androidMain by getting {
+            dependencies {
+                api("androidx.appcompat:appcompat:1.3.1")
+                api("androidx.core:core-ktx:1.6.0")
+            }
+        }
+        val androidTest by getting {
+            dependencies {
+                implementation("junit:junit:4.13.2")
+            }
+        }
+        val desktopMain by getting {
+            dependencies {
+                api(compose.preview)
+            }
+        }
+        val desktopTest by getting
+    }
+}
+
+android {
+    compileSdkVersion(31)
+    sourceSets["main"].manifest.srcFile("src/androidMain/AndroidManifest.xml")
+    defaultConfig {
+        minSdkVersion(21)
+        targetSdkVersion(31)
+    }
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_11
+        targetCompatibility = JavaVersion.VERSION_11
+    }
+}

color-picker/src/main/AndroidManifest.xml → color-picker/src/androidMain/AndroidManifest.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.godaddy.android.colorpicker">
+    package="com.godaddy.common.colorpicker">
 
 </manifest>

color-picker/src/main/java/com/godaddy/android/colorpicker/ClassicColorPicker.kt → color-picker/src/commonMain/kotlin/com/godaddy/android/colorpicker/ClassicColorPicker.kt

@@ -33,7 +33,7 @@ fun ClassicColorPicker(
     showAlphaBar: Boolean = true,
     onColorChanged: (HsvColor) -> Unit
 ) {
-    val colorPickerValueState = rememberSaveable {
+    val colorPickerValueState = rememberSaveable(stateSaver = HsvColor.Saver) {
         mutableStateOf(HsvColor.from(color))
     }
     Row(modifier = modifier) {