diff --git a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/input/model/view/InputDeviceSetting.java b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/input/model/view/InputDeviceSetting.java
deleted file mode 100644
index f02de2e3f3..0000000000
--- a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/input/model/view/InputDeviceSetting.java
+++ /dev/null
@@ -1,70 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-package org.dolphinemu.dolphinemu.features.input.model.view;
-
-import android.content.Context;
-
-import org.dolphinemu.dolphinemu.features.input.model.ControllerInterface;
-import org.dolphinemu.dolphinemu.features.input.model.controlleremu.EmulatedController;
-import org.dolphinemu.dolphinemu.features.settings.model.Settings;
-import org.dolphinemu.dolphinemu.features.settings.model.view.StringSingleChoiceSetting;
-
-public class InputDeviceSetting extends StringSingleChoiceSetting
-{
-  private final EmulatedController mController;
-
-  public InputDeviceSetting(Context context, int titleId, int descriptionId,
-          EmulatedController controller)
-  {
-    super(context, null, titleId, descriptionId, null, null, null);
-
-    mController = controller;
-
-    refreshChoicesAndValues();
-  }
-
-  @Override
-  public String getSelectedChoice()
-  {
-    return mController.getDefaultDevice();
-  }
-
-  @Override
-  public String getSelectedValue()
-  {
-    return mController.getDefaultDevice();
-  }
-
-  @Override
-  public void setSelectedValue(Settings settings, String newValue)
-  {
-    mController.setDefaultDevice(newValue);
-  }
-
-  @Override
-  public void refreshChoicesAndValues()
-  {
-    String[] devices = ControllerInterface.getAllDeviceStrings();
-
-    setChoices(devices);
-    setValues(devices);
-  }
-
-  @Override
-  public boolean isEditable()
-  {
-    return true;
-  }
-
-  @Override
-  public boolean canClear()
-  {
-    return true;
-  }
-
-  @Override
-  public void clear(Settings settings)
-  {
-    setSelectedValue(settings, "");
-  }
-}
diff --git a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/input/model/view/InputDeviceSetting.kt b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/input/model/view/InputDeviceSetting.kt
new file mode 100644
index 0000000000..c98af542c7
--- /dev/null
+++ b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/input/model/view/InputDeviceSetting.kt
@@ -0,0 +1,42 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+package org.dolphinemu.dolphinemu.features.input.model.view
+
+import android.content.Context
+import org.dolphinemu.dolphinemu.features.input.model.ControllerInterface
+import org.dolphinemu.dolphinemu.features.input.model.controlleremu.EmulatedController
+import org.dolphinemu.dolphinemu.features.settings.model.Settings
+import org.dolphinemu.dolphinemu.features.settings.model.view.StringSingleChoiceSetting
+
+class InputDeviceSetting(
+    context: Context,
+    titleId: Int,
+    descriptionId: Int,
+    private val controller: EmulatedController
+) : StringSingleChoiceSetting(context, null, titleId, descriptionId, null, null, null) {
+    init {
+        refreshChoicesAndValues()
+    }
+
+    override val selectedChoice: String
+        get() = controller.getDefaultDevice()
+
+    override val selectedValue: String
+        get() = controller.getDefaultDevice()
+
+    override fun setSelectedValue(settings: Settings, selection: String) =
+        controller.setDefaultDevice(selection)
+
+    override fun refreshChoicesAndValues() {
+        val devices = ControllerInterface.getAllDeviceStrings()
+
+        choices = devices
+        values = devices
+    }
+
+    override val isEditable: Boolean = true
+
+    override fun canClear(): Boolean = true
+
+    override fun clear(settings: Settings) = setSelectedValue(settings, "")
+}
diff --git a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/model/PostProcessing.kt b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/model/PostProcessing.kt
index 1bb1aa04d7..04fe2734bb 100644
--- a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/model/PostProcessing.kt
+++ b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/model/PostProcessing.kt
@@ -4,14 +4,14 @@ package org.dolphinemu.dolphinemu.features.settings.model
 
 object PostProcessing {
     @JvmStatic
-    val shaderList: Array<String?>
+    val shaderList: Array<String>
         external get
 
     @JvmStatic
-    val anaglyphShaderList: Array<String?>
+    val anaglyphShaderList: Array<String>
         external get
 
     @JvmStatic
-    val passiveShaderList: Array<String?>
+    val passiveShaderList: Array<String>
         external get
 }
diff --git a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/model/view/StringSingleChoiceSetting.kt b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/model/view/StringSingleChoiceSetting.kt
index 62301e23ef..a67992ce2b 100644
--- a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/model/view/StringSingleChoiceSetting.kt
+++ b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/model/view/StringSingleChoiceSetting.kt
@@ -17,9 +17,9 @@ open class StringSingleChoiceSetting : SettingsItem {
     override val setting: AbstractSetting?
         get() = stringSetting
 
-    var choices: Array<String?>?
+    var choices: Array<String>?
         protected set
-    var values: Array<String?>?
+    var values: Array<String>?
         protected set
     val menuTag: MenuTag?
     var noChoicesAvailableString = 0
@@ -37,8 +37,8 @@ open class StringSingleChoiceSetting : SettingsItem {
         setting: AbstractStringSetting?,
         titleId: Int,
         descriptionId: Int,
-        choices: Array<String?>?,
-        values: Array<String?>?,
+        choices: Array<String>?,
+        values: Array<String>?,
         menuTag: MenuTag? = null
     ) : super(context, titleId, descriptionId) {
         stringSetting = setting
@@ -52,8 +52,8 @@ open class StringSingleChoiceSetting : SettingsItem {
         setting: AbstractStringSetting,
         titleId: Int,
         descriptionId: Int,
-        choices: Array<String?>,
-        values: Array<String?>,
+        choices: Array<String>,
+        values: Array<String>,
         noChoicesAvailableString: Int
     ) : this(context, setting, titleId, descriptionId, choices, values) {
         this.noChoicesAvailableString = noChoicesAvailableString
@@ -102,8 +102,8 @@ open class StringSingleChoiceSetting : SettingsItem {
             return -1
         }
 
-    open fun setSelectedValue(settings: Settings?, selection: String?) {
-        stringSetting!!.setString(settings!!, selection!!)
+    open fun setSelectedValue(settings: Settings, selection: String) {
+        stringSetting!!.setString(settings, selection)
     }
 
     open fun refreshChoicesAndValues() {}
diff --git a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/ui/SettingsAdapter.kt b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/ui/SettingsAdapter.kt
index e3e745fafa..3623f167bb 100644
--- a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/ui/SettingsAdapter.kt
+++ b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/ui/SettingsAdapter.kt
@@ -474,7 +474,7 @@ class SettingsAdapter(
                 val value = scSetting.getValueAt(which)
                 if (scSetting.selectedValue != value) fragmentView.onSettingChanged()
 
-                scSetting.setSelectedValue(settings, value)
+                scSetting.setSelectedValue(settings!!, value!!)
 
                 closeDialog()
             }
diff --git a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/ui/SettingsFragmentPresenter.kt b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/ui/SettingsFragmentPresenter.kt
index 2ec27cff72..f339f7538c 100644
--- a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/ui/SettingsFragmentPresenter.kt
+++ b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/ui/SettingsFragmentPresenter.kt
@@ -1339,13 +1339,8 @@ class SettingsFragmentPresenter(
         val shaderList =
             if (stereoModeValue == anaglyphMode) PostProcessing.anaglyphShaderList else PostProcessing.shaderList
 
-        val shaderListEntries = arrayOfNulls<String>(shaderList.size + 1)
-        shaderListEntries[0] = context.getString(R.string.off)
-        System.arraycopy(shaderList, 0, shaderListEntries, 1, shaderList.size)
-
-        val shaderListValues = arrayOfNulls<String>(shaderList.size + 1)
-        shaderListValues[0] = ""
-        System.arraycopy(shaderList, 0, shaderListValues, 1, shaderList.size)
+        val shaderListEntries = arrayOf(context.getString(R.string.off), *shaderList)
+        val shaderListValues = arrayOf("", *shaderList)
 
         sl.add(
             StringSingleChoiceSetting(