Added PersistableBundle extensions

state-keeper/api/android/state-keeper.api

@@ -15,6 +15,13 @@ public final class com/arkivanov/essenty/statekeeper/BundleExtKt {
 public abstract interface annotation class com/arkivanov/essenty/statekeeper/ExperimentalStateKeeperApi : java/lang/annotation/Annotation {
 }
 
+public final class com/arkivanov/essenty/statekeeper/PersistableBundleExtKt {
+	public static final fun getSerializable (Landroid/os/PersistableBundle;Ljava/lang/String;Lkotlinx/serialization/DeserializationStrategy;)Ljava/lang/Object;
+	public static final fun getSerializableContainer (Landroid/os/PersistableBundle;Ljava/lang/String;)Lcom/arkivanov/essenty/statekeeper/SerializableContainer;
+	public static final fun putSerializable (Landroid/os/PersistableBundle;Ljava/lang/String;Ljava/lang/Object;Lkotlinx/serialization/SerializationStrategy;)V
+	public static final fun putSerializableContainer (Landroid/os/PersistableBundle;Ljava/lang/String;Lcom/arkivanov/essenty/statekeeper/SerializableContainer;)V
+}
+
 public final class com/arkivanov/essenty/statekeeper/PolymorphicSerializerKt {
 	public static final fun polymorphicSerializer (Lkotlin/reflect/KClass;Lkotlinx/serialization/modules/SerializersModule;)Lkotlinx/serialization/KSerializer;
 }

state-keeper/src/androidMain/kotlin/com/arkivanov/essenty/statekeeper/PersistableBundleExt.kt

@@ -0,0 +1,47 @@
+package com.arkivanov.essenty.statekeeper
+
+import android.os.Build
+import android.os.Bundle
+import android.os.PersistableBundle
+import androidx.annotation.RequiresApi
+import com.arkivanov.essenty.statekeeper.base64.base64ToByteArray
+import com.arkivanov.essenty.statekeeper.base64.toBase64
+import kotlinx.serialization.DeserializationStrategy
+import kotlinx.serialization.SerializationStrategy
+
+/**
+ * Inserts the provided `kotlinx-serialization` [Serializable][kotlinx.serialization.Serializable] value
+ * into this [PersistableBundle], replacing any existing value for the given [key].
+ * Either [key] or [value] may be `null`.
+ */
+@RequiresApi(Build.VERSION_CODES.LOLLIPOP)
+fun <T : Any> PersistableBundle.putSerializable(key: String?, value: T?, strategy: SerializationStrategy<T>) {
+    putString(key, value?.serialize(strategy)?.toBase64())
+}
+
+/**
+ * Returns a `kotlinx-serialization` [Serializable][kotlinx.serialization.Serializable] associated with
+ * the given [key], or `null` if no mapping exists for the given [key] or a `null` value is explicitly
+ * associated with the [key].
+ */
+@RequiresApi(Build.VERSION_CODES.LOLLIPOP)
+fun <T : Any> PersistableBundle.getSerializable(key: String?, strategy: DeserializationStrategy<T>): T? =
+    getString(key)?.base64ToByteArray()?.deserialize(strategy)
+
+/**
+ * Inserts the provided [SerializableContainer] into this [Bundle],
+ * replacing any existing value for the given [key]. Either [key] or [value] may be `null`.
+ */
+@RequiresApi(Build.VERSION_CODES.LOLLIPOP)
+fun PersistableBundle.putSerializableContainer(key: String?, value: SerializableContainer?) {
+    putSerializable(key = key, value = value, strategy = SerializableContainer.serializer())
+}
+
+/**
+ * Returns a [SerializableContainer] associated with the given [key],
+ * or `null` if no mapping exists for the given [key] or a `null` value
+ * is explicitly associated with the [key].
+ */
+@RequiresApi(Build.VERSION_CODES.LOLLIPOP)
+fun PersistableBundle.getSerializableContainer(key: String?): SerializableContainer? =
+    getSerializable(key = key, strategy = SerializableContainer.serializer())