Compose KoinIsolatedContext to help run child composables using a iso…

…lated Koin context

compose/koin-compose/src/commonMain/kotlin/org/koin/compose/KoinApplication.kt

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 @file:OptIn(KoinInternalApi::class)
 
 package org.koin.compose
@@ -21,6 +22,7 @@ import androidx.compose.runtime.Composable
 import androidx.compose.runtime.CompositionLocalProvider
 import androidx.compose.runtime.compositionLocalOf
 import org.koin.core.Koin
+import org.koin.core.KoinApplication
 import org.koin.core.annotation.KoinInternalApi
 import org.koin.core.module.Module
 import org.koin.dsl.KoinAppDeclaration
@@ -84,4 +86,31 @@ fun KoinApplication(
     ) {
         content()
     }
+}
+
+//TODO Test Isolated Context
+/**
+ * Provides Koin Isolated context to be setup into LocalKoinApplication & LocalKoinScope via CompositionLocalProvider,
+ * to be used by child Composable.
+ *
+ * This allows to use an isolated context, directly in all current Composable API
+ *
+ * Koin isolated context has to created with koinApplication() function, storing the instance in a static field
+ *
+ * @param context - Koin isolated context
+ * @param content - child Composable
+ *
+ * @author Arnaud Giuliani
+ */
+@Composable
+fun KoinIsolatedContext(
+    context: KoinApplication,
+    content: @Composable () -> Unit
+) {
+    CompositionLocalProvider(
+        LocalKoinApplication provides context.koin,
+        LocalKoinScope provides context.koin.scopeRegistry.rootScope
+    ) {
+        content()
+    }
 }

compose/sample-android-compose/src/main/java/org/koin/sample/androidx/compose/App.kt

@@ -10,6 +10,7 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.unit.dp
 import org.koin.androidx.compose.koinViewModel
 import org.koin.androidx.compose.scope.KoinActivityScope
+import org.koin.compose.KoinIsolatedContext
 import org.koin.compose.koinInject
 import org.koin.compose.module.rememberKoinModules
 import org.koin.compose.rememberKoinInject
@@ -18,6 +19,8 @@ import org.koin.sample.androidx.compose.data.MyFactory
 import org.koin.sample.androidx.compose.data.MyInnerFactory
 import org.koin.sample.androidx.compose.data.MyScoped
 import org.koin.sample.androidx.compose.data.MySingle
+import org.koin.sample.androidx.compose.data.sdk.SDKData
+import org.koin.sample.androidx.compose.di.IsolatedContextSDK
 import org.koin.sample.androidx.compose.di.secondModule
 import org.koin.sample.androidx.compose.viewmodel.SSHViewModel
 import org.koin.sample.androidx.compose.viewmodel.UserViewModel
@@ -37,6 +40,7 @@ fun App(userViewModel: UserViewModel = koinViewModel()) {
                     SingleComposable(parentStatus = updatedTime)
                     FactoryComposable(parentStatus = updatedTime)
                     ViewModelComposable(parentStatus = updatedTime)
+                    IsolatedSDKComposable(parentStatus = updatedTime)
                 }
             }
 
@@ -85,6 +89,7 @@ fun ViewModelComposable(
 //    }
 //}
 
+
 @Composable
 fun SingleComposable(
     parentStatus: String = "- status -",

compose/sample-android-compose/src/main/java/org/koin/sample/androidx/compose/MainActivity.kt

@@ -3,13 +3,19 @@ package org.koin.sample.androidx.compose
 import android.os.Bundle
 import androidx.activity.compose.setContent
 import androidx.compose.material.MaterialTheme
+import org.koin.android.ext.android.getKoin
 import org.koin.androidx.scope.ScopeActivity
+import org.koin.sample.androidx.compose.data.sdk.SDKData
 import java.util.logging.Logger
 
 class MainActivity : ScopeActivity() {
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
+
+        // ensure SDK is not accessible in main context
+        assert(getKoin().getOrNull<SDKData>() == null)
+
         setContent {
             MaterialTheme { App() }
         }

compose/sample-android-compose/src/main/java/org/koin/sample/androidx/compose/SDKComposable.kt

@@ -0,0 +1,37 @@
+package org.koin.sample.androidx.compose
+
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import org.koin.compose.KoinIsolatedContext
+import org.koin.compose.rememberKoinInject
+import org.koin.sample.androidx.compose.data.sdk.SDKData
+import org.koin.sample.androidx.compose.di.IsolatedContextSDK
+
+
+@Composable
+fun IsolatedSDKComposable(
+    parentStatus: String = "- status -",
+) {
+    KoinIsolatedContext(IsolatedContextSDK.koinApp) {
+        SDKComposable(parentStatus)
+    }
+}
+
+@Composable
+private fun SDKComposable(
+    parentStatus: String = "- status -",
+    sdkData: SDKData = rememberKoinInject()
+) {
+    var created by remember { mutableStateOf(false) }
+
+    if (created) {
+        clickComponent("sdkData", sdkData.id, parentStatus) {
+            ButtonForCreate("-X- sdkData") { created = !created }
+        }
+    } else {
+        ButtonForCreate("(+) sdkData") { created = !created }
+    }
+}

compose/sample-android-compose/src/main/java/org/koin/sample/androidx/compose/data/sdk/SDKData.kt

@@ -0,0 +1,7 @@
+package org.koin.sample.androidx.compose.data.sdk
+
+import java.util.UUID
+
+class SDKData {
+    val id = UUID.randomUUID().toString()
+}

compose/sample-android-compose/src/main/java/org/koin/sample/androidx/compose/di/IsolatedContext.kt

@@ -0,0 +1,17 @@
+package org.koin.sample.androidx.compose.di
+
+import org.koin.dsl.koinApplication
+import org.koin.dsl.module
+import org.koin.sample.androidx.compose.data.sdk.SDKData
+
+val sdkModule = module {
+    single { SDKData() }
+}
+
+object IsolatedContextSDK {
+
+    val koinApp = koinApplication {
+        modules(sdkModule)
+    }
+
+}