fully implement the compose theming and hook up the settings logic

app/build.gradle.kts

@@ -101,10 +101,10 @@ dependencies {
     implementation(libs.simple.tools.commons)
     implementation(libs.auto.fit.text.view)
     implementation(libs.exp4j)
-
+    implementation(libs.bundles.lifecycle)
     implementation(libs.bundles.compose)
     implementation(libs.bundles.accompanist)
-    implementation(libs.bundles.compose.preview)
+    debugImplementation(libs.bundles.compose.preview)
 
     implementation(libs.bundles.room)
     ksp(libs.androidx.room.compiler)

app/src/main/kotlin/com/simplemobiletools/calculator/activities/SettingsActivity.kt

@@ -1,119 +1,95 @@
 package com.simplemobiletools.calculator.activities
 
-import android.app.ActivityManager
+import android.annotation.SuppressLint
 import android.content.Intent
-import android.os.Build
 import android.os.Bundle
-import android.view.View
 import androidx.activity.compose.setContent
 import androidx.appcompat.app.AppCompatActivity
+import androidx.compose.runtime.*
+import androidx.compose.ui.platform.LocalContext
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import com.simplemobiletools.calculator.compose.screens.SettingsScreen
 import com.simplemobiletools.calculator.compose.theme.AppThemeSurface
-import com.simplemobiletools.calculator.databinding.ActivitySettingsBinding
-import com.simplemobiletools.calculator.extensions.calculatorDB
-import com.simplemobiletools.calculator.extensions.config
-import com.simplemobiletools.calculator.extensions.updateWidgets
-import com.simplemobiletools.calculator.extensions.viewBinding
+import com.simplemobiletools.calculator.compose.theme.OnLifecycleEvent
+import com.simplemobiletools.calculator.compose.theme.getAppIconIds
+import com.simplemobiletools.calculator.compose.theme.getAppLauncherName
+import com.simplemobiletools.calculator.extensions.*
 import com.simplemobiletools.commons.activities.CustomizationActivity
-import com.simplemobiletools.commons.extensions.*
+import com.simplemobiletools.commons.extensions.isOrWasThankYouInstalled
+import com.simplemobiletools.commons.extensions.launchPurchaseThankYouIntent
 import com.simplemobiletools.commons.helpers.*
 import java.util.Locale
 import kotlin.system.exitProcess
 
 class SettingsActivity : AppCompatActivity() {
 
-    private val binding by viewBinding(ActivitySettingsBinding::inflate)
     private val preferences by lazy { config }
 
+    @SuppressLint("NewApi")
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContent {
             AppThemeSurface {
+                val context = LocalContext.current
+                val preventPhoneFromSleeping by preferences.preventPhoneFromSleepingFlow.collectAsStateWithLifecycle(preferences.preventPhoneFromSleeping)
+                val vibrateOnButtonPressFlow by preferences.vibrateOnButtonPressFlow.collectAsStateWithLifecycle(preferences.vibrateOnButtonPress)
+                val wasUseEnglishToggledFlow by preferences.wasUseEnglishToggledFlow.collectAsStateWithLifecycle(preferences.wasUseEnglishToggled)
+                val useEnglishFlow by preferences.useEnglishFlow.collectAsStateWithLifecycle(preferences.useEnglish)
+                val useCommaAsDecimalMarkFlow by preferences.useCommaAsDecimalMarkFlow.collectAsStateWithLifecycle(preferences.useCommaAsDecimalMark)
+                val isUseEnglishEnabled by remember(wasUseEnglishToggledFlow) {
+                    derivedStateOf {
+                        (wasUseEnglishToggledFlow || Locale.getDefault().language != "en") && !isTiramisuPlus()
+                    }
+                }
+                var isOrWasThankYouInstalled by remember { mutableStateOf(false) }
+
+                OnLifecycleEvent { event ->
+                    if (event == androidx.lifecycle.Lifecycle.Event.ON_RESUME) {
+                        isOrWasThankYouInstalled = context.isOrWasThankYouInstalled()
+                    }
+                }
                 SettingsScreen(
-                    customizeColors = ::handleCustomizeColorsClick, goBack = ::finish
+                    preventPhoneFromSleeping = preventPhoneFromSleeping,
+                    customizeColors = ::handleCustomizeColorsClick,
+                    goBack = ::finish,
+                    customizeWidgetColors = ::setupCustomizeWidgetColors,
+                    onPreventPhoneFromSleeping = preferences::preventPhoneFromSleeping::set,
+                    vibrateOnButtonPressFlow = vibrateOnButtonPressFlow,
+                    onVibrateOnButtonPressFlow = preferences::vibrateOnButtonPress::set,
+                    isOrWasThankYouInstalled = isOrWasThankYouInstalled,
+                    onThankYou = ::launchPurchaseThankYouIntent,
+                    isUseEnglishEnabled = isUseEnglishEnabled,
+                    isUseEnglishChecked = useEnglishFlow,
+                    onUseEnglishPress = { isChecked ->
+                        preferences.useEnglish = isChecked
+                        exitProcess(0)
+                    },
+                    onSetupLanguagePress = ::launchChangeAppLanguageIntent,
+                    useCommaAsDecimalMarkFlow = useCommaAsDecimalMarkFlow,
+                    onUseCommaAsDecimalMarkFlow = { isChecked ->
+                        preferences.useCommaAsDecimalMark = isChecked
+                        updateWidgets()
+                        ensureBackgroundThread {
+                            applicationContext.calculatorDB.deleteHistory()
+                        }
+                    },
                 )
             }
         }
-
-    }
-
-
-    private fun setupPurchaseThankYou() {
-        binding.settingsPurchaseThankYouHolder.beGoneIf(isOrWasThankYouInstalled())
-        binding.settingsPurchaseThankYouHolder.setOnClickListener {
-            launchPurchaseThankYouIntent()
-        }
-    }
-
-    private fun setupCustomizeColors() {
-        binding.settingsWidgetColorCustomizationLabel.text = getCustomizeColorsString()
-        binding.settingsWidgetColorCustomizationHolder.setOnClickListener {
-            handleCustomizeColorsClick()
-        }
     }
 
     private fun handleCustomizeColorsClick() {
         Intent(applicationContext, CustomizationActivity::class.java).apply {
-            /*putExtra(APP_ICON_IDS, getAppIconIDs())
-            putExtra(APP_LAUNCHER_NAME, getAppLauncherName())*/
+            putExtra(APP_ICON_IDS, getAppIconIds())
+            putExtra(APP_LAUNCHER_NAME, getAppLauncherName())
             startActivity(this)
         }
     }
 
-    private fun setupUseEnglish() {
-        binding.settingsUseEnglishHolder.beVisibleIf((preferences.wasUseEnglishToggled || Locale.getDefault().language != "en") && !isTiramisuPlus())
-        binding.settingsUseEnglish.isChecked = preferences.useEnglish
-        binding.settingsUseEnglishHolder.setOnClickListener {
-            binding.settingsUseEnglish.toggle()
-            preferences.useEnglish = binding.settingsUseEnglish.isChecked
-            exitProcess(0)
-        }
-    }
-
-    private fun setupLanguage() {
-        binding.settingsLanguage.text = Locale.getDefault().displayLanguage
-        binding.settingsLanguageHolder.beVisibleIf(isTiramisuPlus())
-        binding.settingsLanguageHolder.setOnClickListener {
-            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
-                // launchChangeAppLanguageIntent()
-            }
-        }
-    }
-
-    private fun setupVibrate() {
-        binding.settingsVibrate.isChecked = preferences.vibrateOnButtonPress
-        binding.settingsVibrateHolder.setOnClickListener {
-            binding.settingsVibrate.toggle()
-            preferences.vibrateOnButtonPress = binding.settingsVibrate.isChecked
-        }
-    }
-
-    private fun setupPreventPhoneFromSleeping() {
-        binding.settingsPreventPhoneFromSleeping.isChecked = preferences.preventPhoneFromSleeping
-        binding.settingsPreventPhoneFromSleepingHolder.setOnClickListener {
-            binding.settingsPreventPhoneFromSleeping.toggle()
-            preferences.preventPhoneFromSleeping = binding.settingsPreventPhoneFromSleeping.isChecked
-        }
-    }
-
-    private fun setupUseCommaAsDecimalMark() {
-        binding.settingsUseCommaAsDecimalMark.isChecked = preferences.useCommaAsDecimalMark
-        binding.settingsUseCommaAsDecimalMark.setOnClickListener {
-            binding.settingsUseCommaAsDecimalMark.toggle()
-            preferences.useCommaAsDecimalMark = binding.settingsUseCommaAsDecimalMark.isChecked
-            updateWidgets()
-            ensureBackgroundThread {
-                applicationContext.calculatorDB.deleteHistory()
-            }
-        }
-    }
-
     private fun setupCustomizeWidgetColors() {
-        binding.settingsWidgetColorCustomizationHolder.setOnClickListener {
-            Intent(this, WidgetConfigureActivity::class.java).apply {
-                putExtra(IS_CUSTOMIZING_COLORS, true)
-                startActivity(this)
-            }
+        Intent(this, WidgetConfigureActivity::class.java).apply {
+            putExtra(IS_CUSTOMIZING_COLORS, true)
+            startActivity(this)
         }
     }
 }

app/src/main/kotlin/com/simplemobiletools/calculator/compose/screens/SettingsScreen.kt

@@ -1,6 +1,5 @@
 package com.simplemobiletools.calculator.compose.screens
 
-import androidx.compose.foundation.background
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.rememberScrollState
@@ -9,10 +8,12 @@ import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.ArrowBack
 import androidx.compose.material3.*
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.remember
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.graphics.toArgb
+import androidx.compose.ui.graphics.lerp
 import androidx.compose.ui.input.nestedscroll.nestedScroll
+import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
 import com.simplemobiletools.calculator.compose.extensions.MyDevices
@@ -21,15 +22,45 @@ import com.simplemobiletools.calculator.compose.settings.SettingsGroup
 import com.simplemobiletools.calculator.compose.settings.SettingsPreferenceComponent
 import com.simplemobiletools.calculator.compose.settings.SettingsTitleTextComponent
 import com.simplemobiletools.calculator.compose.theme.AppThemeSurface
+import com.simplemobiletools.calculator.compose.theme.isSurfaceLitWell
 import com.simplemobiletools.commons.R
+import com.simplemobiletools.commons.extensions.getCustomizeColorsString
+import com.simplemobiletools.commons.helpers.isTiramisuPlus
+import java.util.Locale
+import kotlin.reflect.KFunction1
 
 @Composable
 fun SettingsScreen(
     goBack: () -> Unit,
     customizeColors: () -> Unit,
-    topBarsScrolledContainerColor: Color = MaterialTheme.colorScheme.primary
+    customizeWidgetColors: () -> Unit,
+    topBarsScrolledContainerColor: Color = MaterialTheme.colorScheme.primary,
+    nonScrolledTextColor: Color = if (isSurfaceLitWell()) Color.Black else Color.White,
+    scrolledTextColor: Color = Color.White,
+    preventPhoneFromSleeping: Boolean,
+    onPreventPhoneFromSleeping: (Boolean) -> Unit,
+    vibrateOnButtonPressFlow: Boolean,
+    onVibrateOnButtonPressFlow: (Boolean) -> Unit,
+    isOrWasThankYouInstalled: Boolean,
+    onThankYou: () -> Unit,
+    isUseEnglishEnabled: Boolean,
+    isUseEnglishChecked: Boolean,
+    onUseEnglishPress: (Boolean) -> Unit,
+    onSetupLanguagePress: () -> Unit,
+    useCommaAsDecimalMarkFlow: Boolean,
+    onUseCommaAsDecimalMarkFlow: (Boolean) -> Unit,
 ) {
+    val context = LocalContext.current
+    val lockedCustomizeColorText =  if (isOrWasThankYouInstalled) null else context.getCustomizeColorsString()
+    val displayLanguage = remember { Locale.getDefault().displayLanguage }
     val scrollBehavior = TopAppBarDefaults.pinnedScrollBehavior(rememberTopAppBarState())
+    val colorTransitionFraction = scrollBehavior.state.overlappedFraction
+    val fraction = if (colorTransitionFraction > 0.01f) 1f else 0f
+    val scrolledColor = lerp(
+        nonScrolledTextColor,
+        scrolledTextColor,
+        fraction
+    )
     Scaffold(
         modifier = Modifier
             .fillMaxSize()
@@ -41,7 +72,8 @@ fun SettingsScreen(
                         text = stringResource(id = R.string.settings),
                         modifier = Modifier
                             .padding(start = 16.dp)
-                            .fillMaxWidth()
+                            .fillMaxWidth(),
+                        color = scrolledColor
                     )
                 },
                 navigationIcon = {
@@ -49,12 +81,13 @@ fun SettingsScreen(
                         imageVector = Icons.Filled.ArrowBack, contentDescription = stringResource(id = R.string.back),
                         modifier = Modifier
                             .clickable { goBack() }
-                            .padding(start = 8.dp)
+                            .padding(start = 8.dp),
+                        tint = scrolledColor
                     )
                 },
                 scrollBehavior = scrollBehavior,
                 colors = TopAppBarDefaults.largeTopAppBarColors(
-                    scrolledContainerColor = topBarsScrolledContainerColor,
+                    scrolledContainerColor = topBarsScrolledContainerColor
                 ),
             )
         }
@@ -67,20 +100,54 @@ fun SettingsScreen(
             SettingsGroup(title = {
                 SettingsTitleTextComponent(text = stringResource(id = R.string.color_customization))
             }) {
-                SettingsPreferenceComponent(preferenceTitle = stringResource(id = R.string.customize_colors), doOnPreferenceClick = customizeColors)
-                SettingsPreferenceComponent(preferenceTitle = stringResource(id = R.string.customize_widget_colors))
+                SettingsPreferenceComponent(
+                    preferenceTitle = stringResource(id = R.string.customize_colors),
+                    doOnPreferenceClick = customizeColors,
+                    isPreferenceEnabled = isOrWasThankYouInstalled,
+                    preferenceSummary = lockedCustomizeColorText
+                )
+                SettingsPreferenceComponent(
+                    preferenceTitle = stringResource(id = R.string.customize_widget_colors),
+                    doOnPreferenceClick = customizeWidgetColors
+                )
                 Spacer(modifier = Modifier.padding(bottom = 16.dp))
             }
             Divider()
             SettingsGroup(title = {
                 SettingsTitleTextComponent(text = stringResource(id = R.string.general_settings))
             }) {
-                SettingsPreferenceComponent(preferenceTitle = stringResource(id = R.string.purchase_simple_thank_you))
-                SettingsCheckBoxComponent(title = stringResource(id = R.string.use_english_language))
-                SettingsPreferenceComponent(preferenceTitle = stringResource(id = R.string.language), preferenceSummary = "English")
-                SettingsCheckBoxComponent(title = stringResource(id = R.string.vibrate_on_button_press))
-                SettingsCheckBoxComponent(title = stringResource(id = R.string.prevent_phone_from_sleeping))
-                SettingsCheckBoxComponent(title = stringResource(id = com.simplemobiletools.calculator.R.string.use_comma_as_decimal_mark))
+                if (!isOrWasThankYouInstalled) {
+                    SettingsPreferenceComponent(preferenceTitle = stringResource(id = R.string.purchase_simple_thank_you), doOnPreferenceClick = onThankYou)
+                }
+                if (isUseEnglishEnabled) {
+                    SettingsCheckBoxComponent(
+                        title = stringResource(id = R.string.use_english_language),
+                        initialValue = isUseEnglishChecked,
+                        onChange = onUseEnglishPress
+                    )
+                }
+                if (isTiramisuPlus()) {
+                    SettingsPreferenceComponent(
+                        preferenceTitle = stringResource(id = R.string.language),
+                        preferenceSummary = displayLanguage,
+                        doOnPreferenceClick = onSetupLanguagePress
+                    )
+                }
+                SettingsCheckBoxComponent(
+                    title = stringResource(id = R.string.vibrate_on_button_press),
+                    initialValue = vibrateOnButtonPressFlow,
+                    onChange = onVibrateOnButtonPressFlow
+                )
+                SettingsCheckBoxComponent(
+                    title = stringResource(id = R.string.prevent_phone_from_sleeping),
+                    initialValue = preventPhoneFromSleeping,
+                    onChange = onPreventPhoneFromSleeping
+                )
+                SettingsCheckBoxComponent(
+                    title = stringResource(id = com.simplemobiletools.calculator.R.string.use_comma_as_decimal_mark),
+                    initialValue = useCommaAsDecimalMarkFlow,
+                    onChange = onUseCommaAsDecimalMarkFlow
+                )
             }
         }
     }
@@ -89,5 +156,24 @@ fun SettingsScreen(
 @MyDevices
 @Composable
 private fun SettingsScreenPreview() {
-    AppThemeSurface { SettingsScreen(goBack = {}, customizeColors = {}) }
+    AppThemeSurface {
+        SettingsScreen(
+            goBack = {},
+            customizeColors = {},
+            customizeWidgetColors = {},
+            preventPhoneFromSleeping = false,
+            onPreventPhoneFromSleeping = {},
+            vibrateOnButtonPressFlow = false,
+            onVibrateOnButtonPressFlow = {},
+            isOrWasThankYouInstalled = false,
+            onThankYou = {},
+            topBarsScrolledContainerColor = MaterialTheme.colorScheme.primary,
+            nonScrolledTextColor = Color.White,
+            scrolledTextColor = Color.Black,
+            isUseEnglishEnabled = false,
+            isUseEnglishChecked = false,
+            onUseEnglishPress = {},
+            onSetupLanguagePress = {}, useCommaAsDecimalMarkFlow = false, onUseCommaAsDecimalMarkFlow = {}
+        )
+    }
 }

app/src/main/kotlin/com/simplemobiletools/calculator/compose/theme/DynamicTheme.kt

@@ -1,12 +1,17 @@
 package com.simplemobiletools.calculator.compose.theme
 
 import android.content.Context
+import androidx.compose.runtime.Composable
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.toArgb
+import androidx.compose.ui.platform.LocalContext
 import com.simplemobiletools.calculator.extensions.config
 import com.simplemobiletools.commons.extensions.isBlackAndWhiteTheme
 import com.simplemobiletools.commons.extensions.isWhiteTheme
 
+@Composable
+fun getCurrentTheme() = getTheme(LocalContext.current, Theme.systemDefaultMaterialYou())
+
 fun getTheme(context: Context, materialYouTheme: Theme.SystemDefaultMaterialYou): Theme {
     val baseConfig = context.config
     val primaryColorInt = baseConfig.primaryColor

app/src/main/kotlin/com/simplemobiletools/calculator/compose/theme/Theme.kt

@@ -1,11 +1,11 @@
 package com.simplemobiletools.calculator.compose.theme
 
+import android.app.Activity
 import android.app.ActivityManager
 import android.content.Context
 import android.content.res.Configuration
 import android.graphics.BitmapFactory
 import android.os.Build
-import android.util.Log
 import androidx.compose.foundation.LocalOverscrollConfiguration
 import androidx.compose.foundation.isSystemInDarkTheme
 import androidx.compose.foundation.layout.fillMaxSize
@@ -26,12 +26,12 @@ import com.simplemobiletools.calculator.compose.theme.Theme.Companion.systemDefa
 import com.simplemobiletools.calculator.extensions.config
 import com.simplemobiletools.calculator.helpers.Config
 import com.simplemobiletools.commons.R
-import com.simplemobiletools.commons.extensions.*
+import com.simplemobiletools.commons.extensions.adjustAlpha
 import com.simplemobiletools.commons.helpers.APP_ICON_IDS
 import com.simplemobiletools.commons.helpers.APP_LAUNCHER_NAME
 import com.simplemobiletools.commons.helpers.HIGHER_ALPHA
 
-private val DarkColorScheme = darkColorScheme(
+private val darkColorScheme = darkColorScheme(
     primary = color_primary,
     secondary = color_primary_dark,
     tertiary = color_accent,
@@ -112,6 +112,7 @@ sealed class Theme : CommonTheme {
         override val textColorInt: Int
     ) : Theme()
 
+
     companion object {
         @Composable
         fun systemDefaultMaterialYou() = SystemDefaultMaterialYou(
@@ -125,7 +126,25 @@ sealed class Theme : CommonTheme {
 
 @Composable
 @ReadOnlyComposable
-private fun isInDarkThemeAndSurfaceIsNotLitWell() = isSystemInDarkTheme() || MaterialTheme.colorScheme.surface.luminance() < 0.5
+fun isInDarkThemeAndSurfaceIsNotLitWell() = isSystemInDarkTheme() || isSurfaceNotLitWell()
+
+private const val LUMINANCE_THRESHOLD = 0.5f
+
+@Composable
+@ReadOnlyComposable
+fun isSurfaceNotLitWell() = MaterialTheme.colorScheme.surface.luminance() < LUMINANCE_THRESHOLD
+
+@Composable
+@ReadOnlyComposable
+fun isSurfaceLitWell() = MaterialTheme.colorScheme.surface.luminance() > LUMINANCE_THRESHOLD
+
+@Composable
+@ReadOnlyComposable
+fun Color.isLitWell() = luminance() > LUMINANCE_THRESHOLD
+
+@Composable
+@ReadOnlyComposable
+fun Color.isNotLitWell() = luminance() < LUMINANCE_THRESHOLD
 
 
 @Composable
@@ -163,7 +182,7 @@ fun Theme(
             onSurface = theme.textColor
         )
 
-        else -> DarkColorScheme
+        else -> darkColorScheme
     }
     LaunchedEffect(Unit) {
         /* if (context.navigationBarHeight > 0 || context.isUsingGestureNavigation() && useTransparentNavigation) {
@@ -205,8 +224,10 @@ fun Theme(
     }
 }
 
-private fun Context.getAppIconIds(): List<Int> = getActivity().intent.getIntegerArrayListExtra(APP_ICON_IDS).orEmpty()
-private fun Context.getAppLauncherName(): String = getActivity().intent.getStringExtra(APP_LAUNCHER_NAME).orEmpty()
+private fun Context.getAppIconIds(): List<Int> = getActivity().getAppIconIds()
+fun Activity.getAppIconIds(): ArrayList<Int> = ArrayList(intent.getIntegerArrayListExtra(APP_ICON_IDS).orEmpty())
+private fun Context.getAppLauncherName(): String = getActivity().getAppLauncherName()
+fun Activity.getAppLauncherName(): String = intent.getStringExtra(APP_LAUNCHER_NAME).orEmpty()
 private fun updateRecentsAppIcon(baseConfig: Config, context: Context) {
     if (baseConfig.isUsingModifiedAppIcon) {
         val appIconIDs = context.getAppIconIds()

app/src/main/kotlin/com/simplemobiletools/calculator/extensions/Context.kt

@@ -4,13 +4,18 @@ import android.appwidget.AppWidgetManager
 import android.content.ComponentName
 import android.content.Context
 import android.content.Intent
+import android.net.Uri
+import android.os.Build
+import android.provider.Settings
 import android.view.ViewGroup
 import android.widget.Button
 import android.widget.TextView
+import androidx.annotation.RequiresApi
 import com.simplemobiletools.calculator.databases.CalculatorDatabase
 import com.simplemobiletools.calculator.helpers.Config
 import com.simplemobiletools.calculator.helpers.MyWidgetProvider
 import com.simplemobiletools.calculator.interfaces.CalculatorDao
+import com.simplemobiletools.commons.extensions.showErrorToast
 
 val Context.config: Config get() = Config.newInstance(applicationContext)
 
@@ -40,3 +45,22 @@ fun Context.updateWidgets() {
         }
     }
 }
+
+@RequiresApi(Build.VERSION_CODES.TIRAMISU)
+fun Context.launchChangeAppLanguageIntent() {
+    try {
+        Intent(Settings.ACTION_APP_LOCALE_SETTINGS).apply {
+            data = Uri.fromParts("package", packageName, null)
+            startActivity(this)
+        }
+    } catch (e: Exception) {
+        try {
+            Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS).apply {
+                data = Uri.fromParts("package", packageName, null)
+                startActivity(this)
+            }
+        } catch (e: Exception) {
+            showErrorToast(e)
+        }
+    }
+}

app/src/main/kotlin/com/simplemobiletools/calculator/extensions/SharedPreferencesProducerExtensions.kt

@@ -0,0 +1,18 @@
+package com.simplemobiletools.calculator.extensions
+
+import android.content.SharedPreferences
+import kotlinx.coroutines.channels.awaitClose
+import kotlinx.coroutines.flow.callbackFlow
+
+context (SharedPreferences)
+fun <T> sharedPreferencesCallback(
+    value: () -> T?,
+) = callbackFlow {
+    val sharedPreferencesListener =
+        SharedPreferences.OnSharedPreferenceChangeListener { _, _ ->
+            trySend(value())
+        }
+
+    registerOnSharedPreferenceChangeListener(sharedPreferencesListener)
+    awaitClose { unregisterOnSharedPreferenceChangeListener(sharedPreferencesListener) }
+}

app/src/main/kotlin/com/simplemobiletools/calculator/helpers/Config.kt

@@ -1,7 +1,10 @@
 package com.simplemobiletools.calculator.helpers
 
 import android.content.Context
+import com.simplemobiletools.calculator.extensions.sharedPreferencesCallback
 import com.simplemobiletools.commons.helpers.BaseConfig
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.filterNotNull
 
 class Config(context: Context) : BaseConfig(context) {
     companion object {
@@ -11,4 +14,10 @@ class Config(context: Context) : BaseConfig(context) {
     var useCommaAsDecimalMark: Boolean
         get() = prefs.getBoolean(USE_COMMA_AS_DECIMAL_MARK, getDecimalSeparator() == COMMA)
         set(useCommaAsDecimalMark) = prefs.edit().putBoolean(USE_COMMA_AS_DECIMAL_MARK, useCommaAsDecimalMark).apply()
+
+    val preventPhoneFromSleepingFlow: Flow<Boolean> = prefs.run { sharedPreferencesCallback { preventPhoneFromSleeping } }.filterNotNull()
+    val vibrateOnButtonPressFlow: Flow<Boolean> = prefs.run { sharedPreferencesCallback { vibrateOnButtonPress } }.filterNotNull()
+    val wasUseEnglishToggledFlow: Flow<Boolean> = prefs.run { sharedPreferencesCallback { wasUseEnglishToggled } }.filterNotNull()
+    val useEnglishFlow: Flow<Boolean> = prefs.run { sharedPreferencesCallback { useEnglish } }.filterNotNull()
+    val useCommaAsDecimalMarkFlow: Flow<Boolean> = prefs.run { sharedPreferencesCallback { useCommaAsDecimalMark } }.filterNotNull()
 }

gradle/libs.versions.toml

@@ -6,6 +6,7 @@ ksp = "1.8.22-1.0.11"
 #Androidx
 androidx-customView = "1.2.0-alpha02"
 androidx-customViewPooling = "1.0.0"
+androidx-lifecycle = "2.6.1"
 #Compose
 composeActivity = "1.8.0-alpha06"
 compose = "1.6.0-alpha01"
@@ -37,6 +38,11 @@ app-version-versionName = "5.11.3"
 #Android X
 androidx-customView = { module = "androidx.customview:customview", version.ref = "androidx-customView" }
 androidx-customViewPooling = { module = "androidx.customview:customview-poolingcontainer", version.ref = "androidx-customViewPooling" }
+#Android X lifecycle
+androidx-lifecycle-runtime = { module = "androidx.lifecycle:lifecycle-runtime-ktx", version.ref = "androidx-lifecycle" }
+androidx-lifecycle-viewModel = { module = "androidx.lifecycle:lifecycle-viewmodel-ktx", version.ref = "androidx-lifecycle" }
+androidx-lifecycle-viewModel-compose = { module = "androidx.lifecycle:lifecycle-viewmodel-compose", version.ref = "androidx-lifecycle" }
+androidx-lifecycle-compose = { module = "androidx.lifecycle:lifecycle-runtime-compose", version.ref = "androidx-lifecycle" }
 #Room
 androidx-room-runtime = { module = "androidx.room:room-runtime", version.ref = "room" }
 androidx-room-ktx = { module = "androidx.room:room-ktx", version.ref = "room" }
@@ -85,7 +91,12 @@ room = [
 accompanist = [
     "accompanist-systemuicontroller",
 ]
-
+lifecycle = [
+    "androidx-lifecycle-compose",
+    "androidx-lifecycle-runtime",
+    "androidx-lifecycle-viewModel",
+    "androidx-lifecycle-viewModel-compose",
+]
 [plugins]
 android = { id = "com.android.application", version.ref = "gradlePlugins-agp" }
 ksp = { id = "com.google.devtools.ksp", version.ref = "ksp" }