add more compose previews, and make them work better

app/src/main/java/helium314/keyboard/latin/settings/Settings.java

@@ -16,11 +16,13 @@ import android.graphics.Typeface;
 import android.graphics.drawable.BitmapDrawable;
 import android.graphics.drawable.Drawable;
 import android.view.ContextThemeWrapper;
+import android.view.inputmethod.EditorInfo;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.annotation.StringRes;
 
+import helium314.keyboard.compat.ConfigurationCompatKt;
 import helium314.keyboard.keyboard.KeyboardActionListener;
 import helium314.keyboard.latin.AudioAndHapticFeedbackManager;
 import helium314.keyboard.latin.InputAttributes;
@@ -239,6 +241,14 @@ public final class Settings implements SharedPreferences.OnSharedPreferenceChang
         }
     }
 
+    /** convenience function for the rare situations where we need to load settings but may not have a keyboard */
+    public void loadSettings(final Context context) {
+        if (mSettingsValues != null) return;
+        final Locale locale = ConfigurationCompatKt.locale(context.getResources().getConfiguration());
+        final InputAttributes inputAttributes = new InputAttributes(new EditorInfo(), false, context.getPackageName());
+        loadSettings(context, locale, inputAttributes);
+    }
+
     public void loadSettings(final Context context, final Locale locale,
                              @NonNull final InputAttributes inputAttributes) {
         mSettingsValuesLock.lock();

app/src/main/java/helium314/keyboard/latin/utils/DeviceProtectedUtils.java

@@ -26,12 +26,10 @@ public final class DeviceProtectedUtils {
             prefs = PreferenceManager.getDefaultSharedPreferences(context);
             return prefs;
         }
-        Context deviceProtectedContext = getDeviceProtectedContext(context);
+        final Context deviceProtectedContext = getDeviceProtectedContext(context);
-        if (deviceProtectedContext == null) { // not relevant in practice, but happens when compose previews access shared preferences
-            prefs = PreferenceManager.getDefaultSharedPreferences(context);
-            return prefs;
-        }
         prefs = PreferenceManager.getDefaultSharedPreferences(deviceProtectedContext);
+        if (prefs.getAll() == null)
+            return prefs; // happens for compose previews
         if (prefs.getAll().isEmpty()) {
             Log.i(TAG, "Device encrypted storage is empty, copying values from credential encrypted storage");
             deviceProtectedContext.moveSharedPreferencesFrom(context, android.preference.PreferenceManager.getDefaultSharedPreferencesName(context));
@@ -42,7 +40,9 @@ public final class DeviceProtectedUtils {
     // keep this private to avoid accidental use of device protected context anywhere in the app
     private static Context getDeviceProtectedContext(final Context context) {
         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N) return context;
-        return context.isDeviceProtectedStorage() ? context : context.createDeviceProtectedStorageContext();
+        final Context ctx = context.isDeviceProtectedStorage() ? context : context.createDeviceProtectedStorageContext();
+        if (ctx == null) return context; // happens for compose previews
+        else return ctx;
     }
 
     public static File getFilesDir(final Context context) {

app/src/main/java/helium314/keyboard/latin/utils/LayoutUtilsCustom.kt

@@ -20,6 +20,7 @@ import helium314.keyboard.latin.R
 import helium314.keyboard.latin.common.FileUtils
 import helium314.keyboard.latin.common.decodeBase36
 import helium314.keyboard.latin.common.encodeBase36
+import helium314.keyboard.latin.settings.Settings
 import helium314.keyboard.latin.utils.LayoutType.Companion.folder
 import helium314.keyboard.latin.utils.ScriptUtils.script
 import helium314.keyboard.settings.keyboardNeedsReload
@@ -84,6 +85,8 @@ object LayoutUtilsCustom {
     }
 
     fun checkLayout(layoutContent: String, context: Context): Boolean {
+        if (Settings.getValues() == null)
+            Settings.getInstance().loadSettings(context)
         val params = KeyboardParams()
         params.mId = KeyboardLayoutSet.getFakeKeyboardId(KeyboardId.ELEMENT_ALPHABET)
         params.mPopupKeyTypes.add(POPUP_KEYS_LAYOUT)

app/src/main/java/helium314/keyboard/latin/utils/RunInLocale.kt

@@ -9,7 +9,7 @@ import java.util.Locale
 fun <T> runInLocale(context: Context, locale: Locale, run: (Context) -> T): T {
     val config = Configuration(context.resources.configuration)
     config.setLocale(locale)
-    val localeContext = context.createConfigurationContext(config)
+    val localeContext = context.createConfigurationContext(config) ?: context
     return run(localeContext)
 }
 

app/src/main/java/helium314/keyboard/latin/utils/SubtypeSettings.kt

@@ -9,6 +9,7 @@ import android.view.inputmethod.InputMethodSubtype
 import android.widget.Toast
 import androidx.core.app.LocaleManagerCompat
 import androidx.core.content.edit
+import helium314.keyboard.compat.locale
 import helium314.keyboard.keyboard.KeyboardSwitcher
 import helium314.keyboard.latin.RichInputMethodManager
 import helium314.keyboard.latin.common.Constants.Separators
@@ -104,11 +105,15 @@ object SubtypeSettings {
 
     fun reloadSystemLocales(context: Context) {
         systemLocales.clear()
+        try {
             val localeList = LocaleManagerCompat.getSystemLocales(context)
             (0 until localeList.size()).forEach {
                 val locale = localeList[it]
                 if (locale != null) systemLocales.add(locale)
             }
+        } catch (_: Throwable) {
+            systemLocales.add(context.resources.configuration.locale())
+        }
         systemSubtypes.clear()
     }
 

app/src/main/java/helium314/keyboard/settings/FilePicker.kt

@@ -67,7 +67,7 @@ fun layoutFilePicker(
 @Composable
 fun dictionaryFilePicker(mainLocale: Locale?): ManagedActivityResultLauncher<Intent, ActivityResult> {
     val ctx = LocalContext.current
-    val cachedDictionaryFile = File(ctx.cacheDir.path + File.separator + "temp_dict")
+    val cachedDictionaryFile = File(ctx.cacheDir?.path + File.separator + "temp_dict")
     var done by remember { mutableStateOf(false) }
     val picker = filePicker { uri ->
         cachedDictionaryFile.delete()

app/src/main/java/helium314/keyboard/settings/Icons.kt

@@ -5,6 +5,7 @@ import androidx.annotation.StringRes
 import androidx.compose.foundation.layout.Column
 import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
+import androidx.compose.material3.Surface
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
@@ -49,6 +50,8 @@ fun DefaultButton(isDefault: Boolean, onClick: () -> Unit) {
 @Preview
 @Composable
 private fun Preview() {
+    Theme(previewDark) {
+        Surface {
             Column(horizontalAlignment = Alignment.CenterHorizontally) {
                 NextScreenIcon()
                 SearchIcon()
@@ -57,4 +60,6 @@ private fun Preview() {
                 DeleteButton {  }
                 DefaultButton(false) { }
             }
+        }
+    }
 }

app/src/main/java/helium314/keyboard/settings/Preview.kt

@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-3.0-only
+package helium314.keyboard.settings
+
+import android.content.Context
+import helium314.keyboard.keyboard.internal.KeyboardIconsSet
+import helium314.keyboard.latin.settings.Settings
+import helium314.keyboard.latin.utils.SubtypeSettings
+
+// file is meant for making compose previews work
+
+fun initPreview(context: Context) {
+    Settings.init(context)
+    SubtypeSettings.init(context)
+    SettingsActivity.settingsContainer = SettingsContainer(context)
+    KeyboardIconsSet.instance.loadIcons(context)
+}
+
+const val previewDark = true

app/src/main/java/helium314/keyboard/settings/WelcomeWizard.kt

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-3.0-only
 package helium314.keyboard.settings
 
 import android.content.Context
@@ -202,13 +203,23 @@ fun WelcomeWizard(
     }
 }
 
-@Preview(
+@Preview
-    // content cut off on real device, but not here... great?
-    device = "spec:orientation=landscape,width=400dp,height=780dp"
-)
 @Composable
 private fun Preview() {
-    Theme(true) {
+    Theme(previewDark) {
+        Surface {
+            WelcomeWizard({}) {  }
+        }
+    }
+}
+
+@Preview(
+    // content cut off on real device, but not here... great?
+    device = "spec:orientation=landscape,width=400dp,height=780dp"
+)
+@Composable
+private fun WidePreview() {
+    Theme(previewDark) {
         Surface {
             WelcomeWizard({}) {  }
         }

app/src/main/java/helium314/keyboard/settings/dialogs/ColorPickerDialog.kt

@@ -33,6 +33,8 @@ import com.github.skydoves.colorpicker.compose.AlphaSlider
 import com.github.skydoves.colorpicker.compose.BrightnessSlider
 import com.github.skydoves.colorpicker.compose.HsvColorPicker
 import com.github.skydoves.colorpicker.compose.rememberColorPickerController
+import helium314.keyboard.settings.Theme
+import helium314.keyboard.settings.previewDark
 
 @Composable
 fun ColorPickerDialog(
@@ -144,5 +146,16 @@ fun ColorPickerDialog(
 @Preview
 @Composable
 private fun Preview() {
+    Theme(previewDark) {
         ColorPickerDialog({}, -0x0f4488aa, "color name", {})
+    }
+}
+
+// for some reason this is cut of while both previews are shown
+@Preview(device = "spec:orientation=landscape,width=400dp,height=780dp")
+@Composable
+private fun WidePreview() {
+    Theme(previewDark) {
+        ColorPickerDialog({}, -0x0f4488aa, "color name", {})
+    }
 }

app/src/main/java/helium314/keyboard/settings/dialogs/ColorThemePickerDialog.kt

@@ -54,8 +54,10 @@ import helium314.keyboard.settings.EditButton
 import helium314.keyboard.settings.Setting
 import helium314.keyboard.settings.SettingsActivity
 import helium314.keyboard.settings.SettingsDestination
+import helium314.keyboard.settings.Theme
 import helium314.keyboard.settings.filePicker
 import helium314.keyboard.settings.keyboardNeedsReload
+import helium314.keyboard.settings.previewDark
 import helium314.keyboard.settings.screens.SaveThoseColors
 import kotlinx.coroutines.launch
 import kotlinx.serialization.SerializationException
@@ -277,10 +279,12 @@ private fun loadColorString(colorString: String, prefs: SharedPreferences): Bool
 @Preview
 @Composable
 private fun Preview() {
+    Theme(previewDark) {
         ColorThemePickerDialog(
             onDismissRequest = {},
             setting = Setting(LocalContext.current, "", R.string.settings) {},
             default = "dark",
             isNight = true
         )
+    }
 }

app/src/main/java/helium314/keyboard/settings/dialogs/ConfirmationDialog.kt

@@ -7,6 +7,8 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.tooling.preview.Preview
 import helium314.keyboard.latin.R
+import helium314.keyboard.settings.Theme
+import helium314.keyboard.settings.previewDark
 
 // taken from StreetComplete
 /** Slight specialization of an alert dialog: AlertDialog with OK and Cancel button. Both buttons
@@ -39,6 +41,7 @@ fun ConfirmationDialog(
 @Preview
 @Composable
 private fun PreviewConfirmDialog() {
+    Theme(previewDark) {
         ConfirmationDialog(
             onDismissRequest = { },
             onConfirmed = {},
@@ -46,4 +49,5 @@ private fun PreviewConfirmDialog() {
             confirmButtonText = "I don't care",
             content = { Text(stringResource(R.string.disable_personalized_dicts_message)) }
         )
+    }
 }

app/src/main/java/helium314/keyboard/settings/dialogs/CustomizeIconsDialog.kt

@@ -42,6 +42,9 @@ import helium314.keyboard.latin.R
 import helium314.keyboard.latin.customIconNames
 import helium314.keyboard.latin.utils.getStringResourceOrName
 import helium314.keyboard.latin.utils.prefs
+import helium314.keyboard.settings.Theme
+import helium314.keyboard.settings.initPreview
+import helium314.keyboard.settings.previewDark
 import helium314.keyboard.settings.screens.GetIcon
 import kotlinx.serialization.json.Json
 
@@ -178,9 +181,11 @@ fun CustomizeIconsDialog(
 @Preview
 @Composable
 private fun Preview() {
-    KeyboardIconsSet.instance.loadIcons(LocalContext.current)
+    initPreview(LocalContext.current)
+    Theme(previewDark) {
         CustomizeIconsDialog(
             prefKey = "",
             onDismissRequest = { },
         )
+    }
 }

app/src/main/java/helium314/keyboard/settings/dialogs/DictionaryDialog.kt

@@ -22,6 +22,7 @@ import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.em
 import helium314.keyboard.compat.locale
@@ -31,7 +32,9 @@ import helium314.keyboard.latin.common.LocaleUtils.localizedDisplayName
 import helium314.keyboard.latin.utils.DictionaryInfoUtils
 import helium314.keyboard.latin.utils.createDictionaryTextAnnotated
 import helium314.keyboard.settings.DeleteButton
+import helium314.keyboard.settings.Theme
 import helium314.keyboard.settings.dictionaryFilePicker
+import helium314.keyboard.settings.previewDark
 import helium314.keyboard.settings.screens.getUserAndInternalDictionaries
 import java.util.Locale
 
@@ -97,3 +100,11 @@ fun DictionaryDialog(
         }
     )
 }
+
+@Preview
+@Composable
+private fun Preview() {
+    Theme(previewDark) {
+        DictionaryDialog({}, Locale.ENGLISH)
+    }
+}

app/src/main/java/helium314/keyboard/settings/dialogs/InfoDialog.kt

@@ -4,6 +4,9 @@ package helium314.keyboard.settings.dialogs
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.tooling.preview.Preview
+import helium314.keyboard.settings.Theme
+import helium314.keyboard.settings.previewDark
 
 @Composable
 fun InfoDialog(
@@ -18,3 +21,11 @@ fun InfoDialog(
         confirmButtonText = null
     )
 }
+
+@Preview
+@Composable
+private fun Preview() {
+    Theme(previewDark) {
+        InfoDialog("message") { }
+    }
+}

app/src/main/java/helium314/keyboard/settings/dialogs/LayoutEditDialog.kt

@@ -17,16 +17,21 @@ import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.platform.LocalDensity
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.input.TextFieldValue
+import androidx.compose.ui.tooling.preview.Preview
 import helium314.keyboard.latin.R
 import helium314.keyboard.latin.utils.LayoutType
 import helium314.keyboard.latin.utils.LayoutUtilsCustom
 import helium314.keyboard.latin.utils.Log
+import helium314.keyboard.latin.utils.SettingsSubtype
 import helium314.keyboard.latin.utils.SubtypeSettings
 import helium314.keyboard.latin.utils.getActivity
 import helium314.keyboard.latin.utils.getStringResourceOrName
 import helium314.keyboard.settings.CloseIcon
 import helium314.keyboard.settings.SettingsActivity
+import helium314.keyboard.settings.Theme
+import helium314.keyboard.settings.initPreview
 import helium314.keyboard.settings.keyboardNeedsReload
+import helium314.keyboard.settings.previewDark
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
@@ -114,3 +119,13 @@ fun LayoutEditDialog(
 
 // the job is here (outside the composable to make sure old jobs are canceled
 private var errorJob: Job? = null
+
+@Preview
+@Composable
+private fun Preview() {
+    val content = LocalContext.current.assets.open("layouts/main/dvorak.json").reader().readText()
+    initPreview(LocalContext.current)
+    Theme(previewDark) {
+        LayoutEditDialog({}, LayoutType.MAIN, "qwerty", locale = Locale.ENGLISH, startContent = content) { true }
+    }
+}

app/src/main/java/helium314/keyboard/settings/dialogs/LayoutPickerDialog.kt

@@ -48,9 +48,11 @@ import helium314.keyboard.settings.DeleteButton
 import helium314.keyboard.settings.EditButton
 import helium314.keyboard.settings.Setting
 import helium314.keyboard.settings.SettingsActivity
+import helium314.keyboard.settings.Theme
 import helium314.keyboard.settings.keyboardNeedsReload
 import helium314.keyboard.settings.layoutFilePicker
 import helium314.keyboard.settings.layoutIntent
+import helium314.keyboard.settings.previewDark
 
 @Composable
 fun LayoutPickerDialog(
@@ -211,9 +213,11 @@ private fun LayoutItemRow(
 @Preview
 @Composable
 private fun Preview() {
+    Theme(previewDark) {
         LayoutPickerDialog(
             onDismissRequest = {},
             setting = Setting(LocalContext.current, "", R.string.settings) {},
             layoutType = LayoutType.SYMBOLS
         )
+    }
 }

app/src/main/java/helium314/keyboard/settings/dialogs/ListPickerDialog.kt

@@ -25,6 +25,8 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
+import helium314.keyboard.settings.Theme
+import helium314.keyboard.settings.previewDark
 
 // taken from StreetComplete
 @Composable
@@ -100,6 +102,7 @@ fun <T: Any> ListPickerDialog(
 @Composable
 private fun PreviewListPickerDialog() {
     val items = remember { (0..<5).toList() }
+    Theme(previewDark) {
         ListPickerDialog(
             onDismissRequest = {},
             items = items,
@@ -108,4 +111,5 @@ private fun PreviewListPickerDialog() {
             selectedItem = 2,
             getItemName = { "Item $it" },
         )
+    }
 }

app/src/main/java/helium314/keyboard/settings/dialogs/MultiListPickerDialog.kt

@@ -24,6 +24,8 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
+import helium314.keyboard.settings.Theme
+import helium314.keyboard.settings.previewDark
 
 // modified version of ListPickerDialog for selecting multiple items
 @Composable
@@ -83,6 +85,7 @@ fun <T: Any> MultiListPickerDialog(
 @Composable
 private fun Preview() {
     val items = remember { (0..<5).toList() }
+    Theme(previewDark) {
         MultiListPickerDialog(
             onDismissRequest = {},
             items = items,
@@ -91,4 +94,5 @@ private fun Preview() {
             initialSelection = listOf(2, 4),
             getItemName = { "Item $it" },
         )
+    }
 }

app/src/main/java/helium314/keyboard/settings/dialogs/NewDictionaryDialog.kt

@@ -29,7 +29,6 @@ import helium314.keyboard.latin.utils.DictionaryInfoUtils
 import helium314.keyboard.latin.utils.ScriptUtils.script
 import helium314.keyboard.latin.utils.SubtypeSettings
 import helium314.keyboard.latin.utils.locale
-import helium314.keyboard.latin.utils.prefs
 import java.io.File
 import java.util.Locale
 

app/src/main/java/helium314/keyboard/settings/dialogs/ReorderDialog.kt

@@ -26,6 +26,8 @@ import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import helium314.keyboard.latin.R
+import helium314.keyboard.settings.Theme
+import helium314.keyboard.settings.previewDark
 import sh.calvin.reorderable.ReorderableItem
 import sh.calvin.reorderable.rememberReorderableLazyListState
 
@@ -93,6 +95,7 @@ fun <T: Any> ReorderDialog(
 @Preview
 @Composable
 private fun Preview() {
+    Theme(previewDark) {
         ReorderDialog(
             onConfirmed = {},
             onDismissRequest = {},
@@ -100,4 +103,5 @@ private fun Preview() {
             displayItem = { Text(it.toString(), Modifier.fillMaxWidth(), textAlign = TextAlign.Center) },
             getKey = { it.toString() }
         )
+    }
 }

app/src/main/java/helium314/keyboard/settings/dialogs/SliderDialog.kt

@@ -16,6 +16,8 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.tooling.preview.Preview
 import helium314.keyboard.latin.R
+import helium314.keyboard.settings.Theme
+import helium314.keyboard.settings.previewDark
 
 @Composable
 fun SliderDialog(
@@ -70,6 +72,7 @@ fun SliderDialog(
 @Preview
 @Composable
 private fun PreviewSliderDialog() {
+    Theme(previewDark) {
         SliderDialog(
             onDismissRequest = { },
             onDone = { },
@@ -78,4 +81,5 @@ private fun PreviewSliderDialog() {
             title = { Text("move it") },
             showDefault = true
         )
+    }
 }

app/src/main/java/helium314/keyboard/settings/dialogs/SubtypeDialog.kt

@@ -35,6 +35,7 @@ import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.buildAnnotatedString
+import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import helium314.keyboard.keyboard.internal.KeyboardIconsSet
 import helium314.keyboard.keyboard.internal.keyboard_parser.POPUP_KEYS_ALL
@@ -72,8 +73,11 @@ import helium314.keyboard.latin.utils.mainLayoutName
 import helium314.keyboard.latin.utils.prefs
 import helium314.keyboard.settings.DefaultButton
 import helium314.keyboard.settings.SettingsActivity
+import helium314.keyboard.settings.Theme
+import helium314.keyboard.settings.initPreview
 import helium314.keyboard.settings.layoutFilePicker
 import helium314.keyboard.settings.layoutIntent
+import helium314.keyboard.settings.previewDark
 import helium314.keyboard.settings.screens.GetIcon
 import java.util.Locale
 
@@ -496,3 +500,12 @@ fun <T>DropDownField(
 
 private fun getAvailableSecondaryLocales(context: Context, mainLocale: Locale): List<Locale> =
     getDictionaryLocales(context).filter { it != mainLocale && it.script() == mainLocale.script() }
+
+@Preview
+@Composable
+private fun Preview() {
+    initPreview(LocalContext.current)
+    Theme(previewDark) {
+        SubtypeDialog({}, SettingsSubtype(Locale.ENGLISH, "")) { }
+    }
+}

app/src/main/java/helium314/keyboard/settings/dialogs/TextInputDialog.kt

@@ -21,6 +21,8 @@ import androidx.compose.ui.text.input.KeyboardType
 import androidx.compose.ui.text.input.TextFieldValue
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.window.DialogProperties
+import helium314.keyboard.settings.Theme
+import helium314.keyboard.settings.previewDark
 
 // mostly taken from StreetComplete / SCEE
 /** Dialog with which to input text. OK button is only clickable if [checkTextValid] returns true. */
@@ -85,6 +87,7 @@ fun TextInputDialog(
 @Preview
 @Composable
 private fun Preview() {
+    Theme(previewDark) {
         TextInputDialog(
             onDismissRequest = {},
             onConfirmed = {},
@@ -93,4 +96,5 @@ private fun Preview() {
             singleLine = false,
             textInputLabel = { Text("fill it") }
         )
+    }
 }

app/src/main/java/helium314/keyboard/settings/dialogs/ThreeButtonAlertDialog.kt

@@ -27,6 +27,7 @@ import androidx.compose.ui.unit.dp
 import androidx.compose.ui.window.Dialog
 import androidx.compose.ui.window.DialogProperties
 import helium314.keyboard.settings.Theme
+import helium314.keyboard.settings.previewDark
 
 @Composable
 fun ThreeButtonAlertDialog(
@@ -98,7 +99,7 @@ fun ThreeButtonAlertDialog(
 @Preview
 @Composable
 private fun Preview() {
-    Theme {
+    Theme(previewDark) {
         ThreeButtonAlertDialog(
             onDismissRequest = {},
             onConfirmed = { },

app/src/main/java/helium314/keyboard/settings/dialogs/ToolbarKeysCustomizer.kt

@@ -26,7 +26,6 @@ import androidx.compose.ui.unit.dp
 import helium314.keyboard.keyboard.internal.KeyboardIconsSet
 import helium314.keyboard.keyboard.internal.keyboard_parser.floris.KeyCode.checkAndConvertCode
 import helium314.keyboard.latin.R
-import helium314.keyboard.latin.settings.Settings
 import helium314.keyboard.latin.utils.ToolbarKey
 import helium314.keyboard.latin.utils.getCodeForToolbarKey
 import helium314.keyboard.latin.utils.getCodeForToolbarKeyLongClick
@@ -34,6 +33,9 @@ import helium314.keyboard.latin.utils.getStringResourceOrName
 import helium314.keyboard.latin.utils.prefs
 import helium314.keyboard.latin.utils.readCustomKeyCodes
 import helium314.keyboard.latin.utils.writeCustomKeyCodes
+import helium314.keyboard.settings.Theme
+import helium314.keyboard.settings.initPreview
+import helium314.keyboard.settings.previewDark
 import helium314.keyboard.settings.screens.GetIcon
 
 @Composable
@@ -138,21 +140,22 @@ private fun ToolbarKeyCustomizer(
     )
 }
 
+private fun checkCode(code: TextFieldValue) = runCatching {
+    code.text.toIntOrNull()?.takeIf { it.checkAndConvertCode() <= Char.MAX_VALUE.code }
+}.getOrNull()
+
 @Preview
 @Composable
-fun PreviewToolbarKeyCustomizer() {
+private fun PreviewToolbarKeyCustomizer() {
-    Settings.init(LocalContext.current)
+    initPreview(LocalContext.current)
     ToolbarKeyCustomizer(ToolbarKey.CUT) { }
 }
 
 @Preview
 @Composable
-fun PreviewToolbarKeysCustomizer() {
+private fun PreviewToolbarKeysCustomizer() {
-    Settings.init(LocalContext.current)
+    initPreview(LocalContext.current)
-    KeyboardIconsSet.instance.loadIcons(LocalContext.current)
+    Theme(previewDark) {
         ToolbarKeysCustomizer("") { }
+    }
 }
-
-private fun checkCode(code: TextFieldValue) = runCatching {
-    code.text.toIntOrNull()?.takeIf { it.checkAndConvertCode() <= Char.MAX_VALUE.code }
-}.getOrNull()

app/src/main/java/helium314/keyboard/settings/preferences/LoadGestureLibPreference.kt

@@ -32,7 +32,7 @@ fun LoadGestureLibPreference(setting: Setting) {
     val ctx = LocalContext.current
     val prefs = ctx.protectedPrefs()
     val abi = Build.SUPPORTED_ABIS[0]
-    val libFile = File(ctx.filesDir.absolutePath + File.separator + JniUtils.JNI_LIB_IMPORT_FILE_NAME)
+    val libFile = File(ctx.filesDir?.absolutePath + File.separator + JniUtils.JNI_LIB_IMPORT_FILE_NAME)
     fun renameToLibFileAndRestart(file: File, checksum: String) {
         libFile.delete()
         // store checksum in default preferences (soo JniUtils)

app/src/main/java/helium314/keyboard/settings/preferences/Preference.kt

@@ -29,6 +29,8 @@ import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import helium314.keyboard.latin.R
+import helium314.keyboard.settings.Theme
+import helium314.keyboard.settings.previewDark
 
 // partially taken from StreetComplete / SCEE
 
@@ -105,6 +107,7 @@ fun Preference(
 @Preview
 @Composable
 private fun PreferencePreview() {
+    Theme(previewDark) {
         Surface {
             Column {
                 PreferenceCategory("Preference Category")
@@ -163,4 +166,5 @@ private fun PreferencePreview() {
                 }
             }
         }
+    }
 }

app/src/main/java/helium314/keyboard/settings/screens/AboutScreen.kt

@@ -38,6 +38,7 @@ import helium314.keyboard.settings.preferences.Preference
 import helium314.keyboard.settings.SearchSettingsScreen
 import helium314.keyboard.settings.SettingsActivity
 import helium314.keyboard.settings.Theme
+import helium314.keyboard.settings.previewDark
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import java.text.SimpleDateFormat
@@ -177,7 +178,7 @@ fun createAboutSettings(context: Context) = listOf(
 @Composable
 private fun Preview() {
     SettingsActivity.settingsContainer = SettingsContainer(LocalContext.current)
-    Theme(true) {
+    Theme(previewDark) {
         Surface {
             AboutScreen {  }
         }

app/src/main/java/helium314/keyboard/settings/screens/AdvancedScreen.kt

@@ -45,6 +45,7 @@ import helium314.keyboard.settings.dialogs.TextInputDialog
 import helium314.keyboard.settings.keyboardNeedsReload
 import helium314.keyboard.settings.preferences.BackupRestorePreference
 import helium314.keyboard.settings.preferences.LoadGestureLibPreference
+import helium314.keyboard.settings.previewDark
 
 @Composable
 fun AdvancedSettingsScreen(
@@ -235,7 +236,7 @@ fun createAdvancedSettings(context: Context) = listOf(
 @Composable
 private fun Preview() {
     SettingsActivity.settingsContainer = SettingsContainer(LocalContext.current)
-    Theme(true) {
+    Theme(previewDark) {
         Surface {
             AdvancedSettingsScreen { }
         }

app/src/main/java/helium314/keyboard/settings/screens/AppearanceScreen.kt

@@ -23,7 +23,6 @@ import helium314.keyboard.latin.utils.Log
 import helium314.keyboard.latin.utils.getActivity
 import helium314.keyboard.latin.utils.getStringResourceOrName
 import helium314.keyboard.latin.utils.prefs
-import helium314.keyboard.settings.SettingsContainer
 import helium314.keyboard.settings.preferences.ListPreference
 import helium314.keyboard.settings.SettingsWithoutKey
 import helium314.keyboard.settings.Setting
@@ -36,9 +35,11 @@ import helium314.keyboard.settings.Theme
 import helium314.keyboard.settings.dialogs.ColorThemePickerDialog
 import helium314.keyboard.settings.dialogs.CustomizeIconsDialog
 import helium314.keyboard.settings.dialogs.TextInputDialog
+import helium314.keyboard.settings.initPreview
 import helium314.keyboard.settings.keyboardNeedsReload
 import helium314.keyboard.settings.preferences.BackgroundImagePref
 import helium314.keyboard.settings.preferences.CustomFontPreference
+import helium314.keyboard.settings.previewDark
 
 @Composable
 fun AppearanceScreen(
@@ -307,8 +308,8 @@ fun createAppearanceSettings(context: Context) = listOf(
 @Preview
 @Composable
 private fun Preview() {
-    SettingsActivity.settingsContainer = SettingsContainer(LocalContext.current)
+    initPreview(LocalContext.current)
-    Theme(true) {
+    Theme(previewDark) {
         Surface {
             AppearanceScreen { }
         }

app/src/main/java/helium314/keyboard/settings/screens/ColorsScreen.kt

@@ -61,6 +61,7 @@ import helium314.keyboard.settings.SearchScreen
 import helium314.keyboard.settings.SettingsActivity
 import helium314.keyboard.settings.Theme
 import helium314.keyboard.settings.dialogs.ColorPickerDialog
+import helium314.keyboard.settings.previewDark
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.json.Json
 
@@ -239,7 +240,7 @@ data class SaveThoseColors(val name: String? = null, val moreColors: Int, val co
 @Preview
 @Composable
 private fun Preview() {
-    Theme(true) {
+    Theme(previewDark) {
         Surface {
             ColorsScreen(false, null) { }
         }

app/src/main/java/helium314/keyboard/settings/screens/DebugScreen.kt

@@ -18,15 +18,15 @@ import helium314.keyboard.latin.settings.DebugSettings
 import helium314.keyboard.latin.settings.DebugSettingsFragment
 import helium314.keyboard.latin.settings.Defaults
 import helium314.keyboard.latin.utils.prefs
-import helium314.keyboard.settings.SettingsContainer
 import helium314.keyboard.settings.Setting
 import helium314.keyboard.settings.preferences.Preference
 import helium314.keyboard.settings.SearchSettingsScreen
-import helium314.keyboard.settings.SettingsActivity
 import helium314.keyboard.settings.preferences.SwitchPreference
 import helium314.keyboard.settings.Theme
+import helium314.keyboard.settings.initPreview
 import helium314.keyboard.settings.keyboardNeedsReload
 import helium314.keyboard.settings.preferences.PreferenceCategory
+import helium314.keyboard.settings.previewDark
 
 @Composable
 fun DebugScreen(
@@ -111,8 +111,8 @@ private fun createDebugSettings(context: Context) = listOf(
 @Preview
 @Composable
 private fun Preview() {
-    SettingsActivity.settingsContainer = SettingsContainer(LocalContext.current)
+    initPreview(LocalContext.current)
-    Theme(true) {
+    Theme(previewDark) {
         Surface {
             DebugScreen { }
         }

app/src/main/java/helium314/keyboard/settings/screens/DictionaryScreen.kt

@@ -8,6 +8,7 @@ import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
 import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
@@ -18,6 +19,7 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.buildAnnotatedString
+import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import helium314.keyboard.latin.Dictionary
 import helium314.keyboard.latin.R
@@ -34,9 +36,12 @@ import helium314.keyboard.latin.utils.appendLink
 import helium314.keyboard.latin.utils.getDictionaryLocales
 import helium314.keyboard.latin.utils.locale
 import helium314.keyboard.settings.SearchScreen
+import helium314.keyboard.settings.Theme
 import helium314.keyboard.settings.dialogs.ConfirmationDialog
 import helium314.keyboard.settings.dialogs.DictionaryDialog
 import helium314.keyboard.settings.dictionaryFilePicker
+import helium314.keyboard.settings.initPreview
+import helium314.keyboard.settings.previewDark
 import java.io.File
 import java.util.Locale
 
@@ -138,3 +143,14 @@ fun getUserAndInternalDictionaries(context: Context, locale: Locale): Pair<List<
     }
     return userDicts to (best != null)
 }
+
+@Preview
+@Composable
+private fun Preview() {
+    initPreview(LocalContext.current)
+    Theme(previewDark) {
+        Surface {
+            DictionaryScreen { }
+        }
+    }
+}

app/src/main/java/helium314/keyboard/settings/screens/GestureTypingScreen.kt

@@ -11,17 +11,19 @@ import androidx.compose.ui.tooling.preview.Preview
 import helium314.keyboard.latin.R
 import helium314.keyboard.latin.settings.Defaults
 import helium314.keyboard.latin.settings.Settings
+import helium314.keyboard.latin.utils.JniUtils
 import helium314.keyboard.latin.utils.Log
 import helium314.keyboard.latin.utils.getActivity
 import helium314.keyboard.latin.utils.prefs
-import helium314.keyboard.settings.SettingsContainer
 import helium314.keyboard.settings.Setting
 import helium314.keyboard.settings.SearchSettingsScreen
 import helium314.keyboard.settings.SettingsActivity
 import helium314.keyboard.settings.preferences.SliderPreference
 import helium314.keyboard.settings.preferences.SwitchPreference
 import helium314.keyboard.settings.Theme
+import helium314.keyboard.settings.initPreview
 import helium314.keyboard.settings.keyboardNeedsReload
+import helium314.keyboard.settings.previewDark
 
 @Composable
 fun GestureTypingScreen(
@@ -112,8 +114,9 @@ fun createGestureTypingSettings(context: Context) = listOf(
 @Preview
 @Composable
 private fun Preview() {
-    SettingsActivity.settingsContainer = SettingsContainer(LocalContext.current)
+    JniUtils.sHaveGestureLib = true
-    Theme(true) {
+    initPreview(LocalContext.current)
+    Theme(previewDark) {
         Surface {
             GestureTypingScreen { }
         }

app/src/main/java/helium314/keyboard/settings/screens/LanguageScreen.kt

@@ -10,6 +10,7 @@ import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
 import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
 import androidx.compose.material3.Switch
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
@@ -23,6 +24,7 @@ import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import helium314.keyboard.latin.R
 import helium314.keyboard.latin.common.Constants.Separators
@@ -45,7 +47,10 @@ import helium314.keyboard.latin.utils.locale
 import helium314.keyboard.latin.utils.prefs
 import helium314.keyboard.settings.SearchScreen
 import helium314.keyboard.settings.SettingsActivity
+import helium314.keyboard.settings.Theme
 import helium314.keyboard.settings.dialogs.SubtypeDialog
+import helium314.keyboard.settings.initPreview
+import helium314.keyboard.settings.previewDark
 import java.util.Locale
 
 @Composable
@@ -167,3 +172,14 @@ private fun getSortedSubtypes(context: Context): List<InputMethodSubtype> {
     )
     return SubtypeSettings.getAllAvailableSubtypes().sortedWith(subtypeSortComparator)
 }
+
+@Preview
+@Composable
+private fun Preview() {
+    initPreview(LocalContext.current)
+    Theme(previewDark) {
+        Surface {
+            LanguageScreen { }
+        }
+    }
+}

app/src/main/java/helium314/keyboard/settings/screens/MainSettingsScreen.kt

@@ -23,13 +23,14 @@ import helium314.keyboard.latin.utils.JniUtils
 import helium314.keyboard.latin.utils.SubtypeSettings
 import helium314.keyboard.latin.utils.displayName
 import helium314.keyboard.latin.utils.getActivity
-import helium314.keyboard.latin.utils.prefs
 import helium314.keyboard.latin.utils.switchTo
 import helium314.keyboard.settings.NextScreenIcon
 import helium314.keyboard.settings.preferences.Preference
 import helium314.keyboard.settings.preferences.PreferenceCategory
 import helium314.keyboard.settings.SearchSettingsScreen
 import helium314.keyboard.settings.Theme
+import helium314.keyboard.settings.initPreview
+import helium314.keyboard.settings.previewDark
 
 @Composable
 fun MainSettingsScreen(
@@ -146,7 +147,8 @@ fun MainSettingsScreen(
 @Preview
 @Composable
 private fun PreviewScreen() {
-    Theme(true) {
+    initPreview(LocalContext.current)
+    Theme(previewDark) {
         Surface {
             MainSettingsScreen({}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {})
         }

app/src/main/java/helium314/keyboard/settings/screens/PersonalDictionariesScreen.kt

@@ -8,12 +8,14 @@ import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.heightIn
 import androidx.compose.foundation.layout.padding
 import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import helium314.keyboard.latin.R
 import helium314.keyboard.latin.common.splitOnWhitespace
@@ -25,6 +27,9 @@ import helium314.keyboard.latin.utils.locale
 import helium314.keyboard.settings.NextScreenIcon
 import helium314.keyboard.settings.SearchScreen
 import helium314.keyboard.settings.SettingsDestination
+import helium314.keyboard.settings.Theme
+import helium314.keyboard.settings.initPreview
+import helium314.keyboard.settings.previewDark
 import java.util.Locale
 import java.util.TreeSet
 
@@ -83,3 +88,14 @@ fun getSortedDictionaryLocales(): TreeSet<Locale> {
     sortedLocales.addAll(getSystemLocales())
     return sortedLocales
 }
+
+@Preview
+@Composable
+private fun Preview() {
+    initPreview(LocalContext.current)
+    Theme(previewDark) {
+        Surface {
+            PersonalDictionariesScreen { }
+        }
+    }
+}

app/src/main/java/helium314/keyboard/settings/screens/PreferencesScreen.kt

@@ -19,7 +19,6 @@ import helium314.keyboard.latin.utils.SubtypeSettings
 import helium314.keyboard.latin.utils.getActivity
 import helium314.keyboard.latin.utils.locale
 import helium314.keyboard.latin.utils.prefs
-import helium314.keyboard.settings.SettingsContainer
 import helium314.keyboard.settings.preferences.ListPreference
 import helium314.keyboard.settings.Setting
 import helium314.keyboard.settings.preferences.ReorderSwitchPreference
@@ -28,7 +27,9 @@ import helium314.keyboard.settings.SettingsActivity
 import helium314.keyboard.settings.preferences.SliderPreference
 import helium314.keyboard.settings.preferences.SwitchPreference
 import helium314.keyboard.settings.Theme
+import helium314.keyboard.settings.initPreview
 import helium314.keyboard.settings.keyboardNeedsReload
+import helium314.keyboard.settings.previewDark
 
 @Composable
 fun PreferencesScreen(
@@ -186,8 +187,8 @@ private val localesWithLocalizedNumberRow = listOf("ar", "bn", "fa", "gu", "hi",
 @Preview
 @Composable
 private fun Preview() {
-    SettingsActivity.settingsContainer = SettingsContainer(LocalContext.current)
+    initPreview(LocalContext.current)
-    Theme(true) {
+    Theme(previewDark) {
         Surface {
             PreferencesScreen { }
         }

app/src/main/java/helium314/keyboard/settings/screens/SecondaryLayoutScreen.kt

@@ -2,6 +2,7 @@
 package helium314.keyboard.settings.screens
 
 import android.content.Context
+import androidx.compose.material3.Surface
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
@@ -10,6 +11,7 @@ import androidx.compose.runtime.saveable.rememberSaveable
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.tooling.preview.Preview
 import helium314.keyboard.latin.R
 import helium314.keyboard.latin.settings.Settings
 import helium314.keyboard.latin.utils.LayoutType
@@ -22,8 +24,11 @@ import helium314.keyboard.latin.utils.prefs
 import helium314.keyboard.settings.SearchSettingsScreen
 import helium314.keyboard.settings.Setting
 import helium314.keyboard.settings.SettingsActivity
+import helium314.keyboard.settings.Theme
 import helium314.keyboard.settings.dialogs.LayoutPickerDialog
+import helium314.keyboard.settings.initPreview
 import helium314.keyboard.settings.preferences.Preference
+import helium314.keyboard.settings.previewDark
 
 @Composable
 fun SecondaryLayoutScreen(
@@ -62,3 +67,14 @@ fun createLayoutSettings(context: Context) = LayoutType.entries.filter { it != L
             )
     }
 }
+
+@Preview
+@Composable
+private fun Preview() {
+    initPreview(LocalContext.current)
+    Theme(previewDark) {
+        Surface {
+            SecondaryLayoutScreen { }
+        }
+    }
+}

app/src/main/java/helium314/keyboard/settings/screens/TextCorrectionScreen.kt

@@ -25,7 +25,6 @@ import helium314.keyboard.latin.utils.Log
 import helium314.keyboard.latin.utils.getActivity
 import helium314.keyboard.latin.utils.prefs
 import helium314.keyboard.settings.NextScreenIcon
-import helium314.keyboard.settings.SettingsContainer
 import helium314.keyboard.settings.preferences.ListPreference
 import helium314.keyboard.settings.SettingsWithoutKey
 import helium314.keyboard.settings.Setting
@@ -36,7 +35,9 @@ import helium314.keyboard.settings.SettingsDestination
 import helium314.keyboard.settings.preferences.SwitchPreference
 import helium314.keyboard.settings.Theme
 import helium314.keyboard.settings.dialogs.ConfirmationDialog
+import helium314.keyboard.settings.initPreview
 import helium314.keyboard.settings.keyboardNeedsReload
+import helium314.keyboard.settings.previewDark
 
 @Composable
 fun TextCorrectionScreen(
@@ -203,8 +204,8 @@ fun createCorrectionSettings(context: Context) = listOf(
 @Preview
 @Composable
 private fun PreferencePreview() {
-    SettingsActivity.settingsContainer = SettingsContainer(LocalContext.current)
+    initPreview(LocalContext.current)
-    Theme(true) {
+    Theme(previewDark) {
         Surface {
             TextCorrectionScreen {  }
         }

app/src/main/java/helium314/keyboard/settings/screens/ToolbarScreen.kt

@@ -27,17 +27,16 @@ import helium314.keyboard.keyboard.internal.KeyboardIconsSet
 import helium314.keyboard.latin.R
 import helium314.keyboard.latin.settings.Defaults
 import helium314.keyboard.latin.settings.Settings
-import helium314.keyboard.settings.SettingsContainer
-import helium314.keyboard.settings.SettingsWithoutKey
 import helium314.keyboard.settings.Setting
 import helium314.keyboard.settings.preferences.Preference
 import helium314.keyboard.settings.preferences.ReorderSwitchPreference
 import helium314.keyboard.settings.SearchSettingsScreen
-import helium314.keyboard.settings.SettingsActivity
 import helium314.keyboard.settings.preferences.SwitchPreference
 import helium314.keyboard.settings.Theme
 import helium314.keyboard.settings.dialogs.ToolbarKeysCustomizer
+import helium314.keyboard.settings.initPreview
 import helium314.keyboard.settings.keyboardNeedsReload
+import helium314.keyboard.settings.previewDark
 
 @Composable
 fun ToolbarScreen(
@@ -102,18 +101,6 @@ fun createToolbarSettings(context: Context) = listOf(
     }
 )
 
-@Preview
-@Composable
-private fun Preview() {
-    SettingsActivity.settingsContainer = SettingsContainer(LocalContext.current)
-    KeyboardIconsSet.instance.loadIcons(LocalContext.current)
-    Theme(true) {
-        Surface {
-            ToolbarScreen { }
-        }
-    }
-}
-
 @Composable
 fun KeyboardIconsSet.GetIcon(name: String?) {
     val ctx = LocalContext.current
@@ -127,3 +114,14 @@ fun KeyboardIconsSet.GetIcon(name: String?) {
         }
     }
 }
+
+@Preview
+@Composable
+private fun Preview() {
+    initPreview(LocalContext.current)
+    Theme(previewDark) {
+        Surface {
+            ToolbarScreen { }
+        }
+    }
+}