Migrate to AndroidX ViewModel from Voyager ScreenModel (#3594)

core/viewmodel/build.gradle.kts

@@ -0,0 +1,14 @@
+plugins {
+    alias(mihonx.plugins.android.library)
+    alias(mihonx.plugins.spotless)
+
+    alias(libs.plugins.kotlin.serialization)
+}
+
+android {
+    namespace = "mihon.core.viewmodel"
+}
+
+dependencies {
+    implementation(libs.androidx.lifecycle.viewmodel)
+}

core/viewmodel/src/main/AndroidManifest.xml

@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest />

core/viewmodel/src/main/kotlin/mihon/core/viewmodel/StateViewModel.kt

@@ -0,0 +1,11 @@
+package mihon.core.viewmodel
+
+import androidx.lifecycle.ViewModel
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+
+abstract class StateViewModel<S>(initialState: S) : ViewModel() {
+    protected val mutableState: MutableStateFlow<S> = MutableStateFlow(initialState)
+    val state: StateFlow<S> = mutableState.asStateFlow()
+}