Migrate DevSettings related code to Kotlin (facebook#43731)

Summary:
Pull Request resolved: facebook#43731

# Changelog:
[Internal] -

Converts code related to DevSettings Module/Activity to Kotlin.

Differential Revision: D55574529

packages/react-native/ReactAndroid/api/ReactAndroid.api

@@ -2083,7 +2083,7 @@ public abstract interface class com/facebook/react/devsupport/DevServerHelper$Pa
 	public abstract fun onPackagerReloadCommand ()V
 }
 
-public class com/facebook/react/devsupport/DevSettingsActivity : android/preference/PreferenceActivity {
+public final class com/facebook/react/devsupport/DevSettingsActivity : android/preference/PreferenceActivity {
 	public fun <init> ()V
 	public fun onCreate (Landroid/os/Bundle;)V
 }
@@ -3125,7 +3125,7 @@ public final class com/facebook/react/modules/core/TimingModule : com/facebook/f
 	public fun setSendIdleEvents (Z)V
 }
 
-public class com/facebook/react/modules/debug/DevSettingsModule : com/facebook/fbreact/specs/NativeDevSettingsSpec {
+public final class com/facebook/react/modules/debug/DevSettingsModule : com/facebook/fbreact/specs/NativeDevSettingsSpec {
 	public fun <init> (Lcom/facebook/react/bridge/ReactApplicationContext;Lcom/facebook/react/devsupport/interfaces/DevSupportManager;)V
 	public fun addListener (Ljava/lang/String;)V
 	public fun addMenuItem (Ljava/lang/String;)V

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/devsupport/DevInternalSettings.kt

@@ -0,0 +1,112 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+package com.facebook.react.devsupport
+
+import android.content.Context
+import android.content.SharedPreferences
+import android.content.SharedPreferences.OnSharedPreferenceChangeListener
+import android.preference.PreferenceManager
+import com.facebook.react.common.build.ReactBuildConfig
+import com.facebook.react.modules.debug.interfaces.DeveloperSettings
+import com.facebook.react.packagerconnection.PackagerConnectionSettings
+
+/**
+ * Helper class for accessing developers settings that can not be accessed outside of the package
+ * [com.facebook.react.devsupport]. For accessing some of the settings by external modules this
+ * class implements an external interface [DeveloperSettings].
+ */
+internal class DevInternalSettings(applicationContext: Context, private val listener: Listener?) :
+    DeveloperSettings, OnSharedPreferenceChangeListener {
+  private val preferences: SharedPreferences =
+      PreferenceManager.getDefaultSharedPreferences(applicationContext)
+  val packagerConnectionSettings: PackagerConnectionSettings
+
+  init {
+    preferences.registerOnSharedPreferenceChangeListener(this)
+    packagerConnectionSettings = PackagerConnectionSettings(applicationContext)
+  }
+
+  override fun isFpsDebugEnabled(): Boolean = preferences.getBoolean(PREFS_FPS_DEBUG_KEY, false)
+
+  override fun isAnimationFpsDebugEnabled(): Boolean =
+      preferences.getBoolean(PREFS_ANIMATIONS_DEBUG_KEY, false)
+
+  override fun isJSDevModeEnabled(): Boolean =
+      preferences.getBoolean(PREFS_JS_DEV_MODE_DEBUG_KEY, true)
+
+  override fun isJSMinifyEnabled(): Boolean =
+      preferences.getBoolean(PREFS_JS_MINIFY_DEBUG_KEY, false)
+
+  override fun onSharedPreferenceChanged(sharedPreferences: SharedPreferences, key: String?) {
+    if (listener != null) {
+      if (PREFS_FPS_DEBUG_KEY == key ||
+          PREFS_JS_DEV_MODE_DEBUG_KEY == key ||
+          PREFS_START_SAMPLING_PROFILER_ON_INIT == key ||
+          PREFS_JS_MINIFY_DEBUG_KEY == key) {
+        listener.onInternalSettingsChanged()
+      }
+    }
+  }
+
+  override fun isElementInspectorEnabled(): Boolean {
+    return preferences.getBoolean(PREFS_INSPECTOR_DEBUG_KEY, false)
+  }
+
+  override fun isDeviceDebugEnabled(): Boolean {
+    return ReactBuildConfig.DEBUG
+  }
+
+  override fun isRemoteJSDebugEnabled(): Boolean {
+    return preferences.getBoolean(PREFS_REMOTE_JS_DEBUG_KEY, false)
+  }
+
+  override fun setRemoteJSDebugEnabled(remoteJSDebugEnabled: Boolean) {
+    preferences.edit().putBoolean(PREFS_REMOTE_JS_DEBUG_KEY, remoteJSDebugEnabled).apply()
+  }
+
+  override fun isStartSamplingProfilerOnInit(): Boolean {
+    return preferences.getBoolean(PREFS_START_SAMPLING_PROFILER_ON_INIT, false)
+  }
+
+  override fun addMenuItem(title: String) {
+    // Not supported.
+  }
+
+  fun setElementInspectorEnabled(enabled: Boolean) {
+    preferences.edit().putBoolean(PREFS_INSPECTOR_DEBUG_KEY, enabled).apply()
+  }
+
+  var isHotModuleReplacementEnabled: Boolean
+    get() = preferences.getBoolean(PREFS_HOT_MODULE_REPLACEMENT_KEY, true)
+    set(enabled) {
+      preferences.edit().putBoolean(PREFS_HOT_MODULE_REPLACEMENT_KEY, enabled).apply()
+    }
+
+  fun setJSDevModeEnabled(value: Boolean) {
+    preferences.edit().putBoolean(PREFS_JS_DEV_MODE_DEBUG_KEY, value).apply()
+  }
+
+  fun setFpsDebugEnabled(enabled: Boolean) {
+    preferences.edit().putBoolean(PREFS_FPS_DEBUG_KEY, enabled).apply()
+  }
+
+  interface Listener {
+    fun onInternalSettingsChanged()
+  }
+
+  companion object {
+    private const val PREFS_FPS_DEBUG_KEY = "fps_debug"
+    private const val PREFS_JS_DEV_MODE_DEBUG_KEY = "js_dev_mode_debug"
+    private const val PREFS_JS_MINIFY_DEBUG_KEY = "js_minify_debug"
+    private const val PREFS_ANIMATIONS_DEBUG_KEY = "animations_debug"
+    private const val PREFS_INSPECTOR_DEBUG_KEY = "inspector_debug"
+    private const val PREFS_HOT_MODULE_REPLACEMENT_KEY = "hot_module_replacement"
+    private const val PREFS_REMOTE_JS_DEBUG_KEY = "remote_js_debug"
+    private const val PREFS_START_SAMPLING_PROFILER_ON_INIT = "start_sampling_profiler_on_init"
+  }
+}

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/devsupport/DevSettingsActivity.kt

@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+package com.facebook.react.devsupport
+
+import android.os.Bundle
+import android.preference.PreferenceActivity
+import com.facebook.react.R
+
+/**
+ * Activity that display developers settings. Should be added to the debug manifest of the app. Can
+ * be triggered through the developers option menu displayed by [DevSupportManager].
+ */
+public class DevSettingsActivity : PreferenceActivity() {
+  public override fun onCreate(savedInstanceState: Bundle?) {
+    super.onCreate(savedInstanceState)
+    title = application.resources.getString(R.string.catalyst_settings_title)
+    addPreferencesFromResource(R.xml.rn_dev_preferences)
+  }
+}