Use dependency injection for most singletons

badges/build.gradle.kts

@@ -42,6 +42,8 @@ dependencies {
 
     implementation(libs.bundles.androidx.lifecycle)
 
+    implementation(libs.koin.android)
+
     implementation(project(":ktx"))
     implementation(project(":preferences"))
 

badges/src/main/java/de/mm20/launcher2/badges/BadgeProvider.kt

@@ -13,7 +13,7 @@ import de.mm20.launcher2.ktx.isAtLeastApiLevel
 import de.mm20.launcher2.preferences.LauncherPreferences
 import kotlinx.coroutines.*
 
-class BadgeProvider private constructor(val context: Context) {
+class BadgeProvider(val context: Context) {
 
     private val scope = CoroutineScope(Job() + Dispatchers.Main)
 
@@ -138,13 +138,4 @@ class BadgeProvider private constructor(val context: Context) {
             }
         }
     }
-
-    companion object {
-        private lateinit var instance: BadgeProvider
-
-        fun getInstance(context: Context): BadgeProvider {
-            if (!::instance.isInitialized) instance = BadgeProvider(context.applicationContext)
-            return instance
-        }
-    }
 }

badges/src/main/java/de/mm20/launcher2/badges/Module.kt

@@ -0,0 +1,8 @@
+package de.mm20.launcher2.badges
+
+import org.koin.android.ext.koin.androidContext
+import org.koin.dsl.module
+
+val badgesModule = module {
+    single { BadgeProvider(androidContext()) }
+}