Little refactor for settings screen

2025-06-26 04:00:37 +02:00 · 2022-07-23 22:23:40 +03:00 · 2022-07-23 22:23:40 +03:00 · 956a04bec6
commit 956a04bec6
parent 685a3dfc56
9 changed files with 134 additions and 138 deletions
--- a/app/src/main/java/com/sadellie/unitto/MainActivity.kt
+++ b/app/src/main/java/com/sadellie/unitto/MainActivity.kt
@ -21,32 +21,34 @@ package com.sadellie.unitto
 import android.os.Bundle
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
-import androidx.activity.viewModels
 import androidx.compose.animation.core.tween
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.SideEffect
 import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.navigation.NavGraphBuilder
 import androidx.navigation.NavHostController
 import androidx.navigation.compose.NavHost
 import androidx.navigation.compose.composable
+import androidx.navigation.compose.navigation
 import androidx.navigation.compose.rememberNavController
 import com.google.accompanist.systemuicontroller.rememberSystemUiController
 import com.sadellie.unitto.data.NavRoutes.ABOUT_SCREEN
 import com.sadellie.unitto.data.NavRoutes.LEFT_LIST_SCREEN
 import com.sadellie.unitto.data.NavRoutes.MAIN_SCREEN
 import com.sadellie.unitto.data.NavRoutes.RIGHT_LIST_SCREEN
+import com.sadellie.unitto.data.NavRoutes.SETTINGS_GRAPH
 import com.sadellie.unitto.data.NavRoutes.SETTINGS_SCREEN
 import com.sadellie.unitto.data.NavRoutes.THEMES_SCREEN
 import com.sadellie.unitto.screens.MainViewModel
-import com.sadellie.unitto.screens.about.AboutScreen
+import com.sadellie.unitto.screens.setttings.SettingsViewModel
+import com.sadellie.unitto.screens.setttings.AboutScreen
 import com.sadellie.unitto.screens.main.MainScreen
 import com.sadellie.unitto.screens.second.LeftSideScreen
 import com.sadellie.unitto.screens.second.RightSideScreen
 import com.sadellie.unitto.screens.second.SecondViewModel
 import com.sadellie.unitto.screens.setttings.SettingsScreen
-import com.sadellie.unitto.screens.theming.ThemesScreen
-import com.sadellie.unitto.screens.theming.ThemesViewModel
+import com.sadellie.unitto.screens.setttings.ThemesScreen
 import com.sadellie.unitto.ui.theme.AppTypography
 import com.sadellie.unitto.ui.theme.DarkThemeColors
 import com.sadellie.unitto.ui.theme.LightThemeColors
@ -57,20 +59,21 @@ import io.github.sadellie.themmo.rememberThemmoController

@AndroidEntryPoint
 class MainActivity : ComponentActivity() {
-    private val mainViewModel: MainViewModel by viewModels()
-    private val themesViewModel: ThemesViewModel by viewModels()

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        setContent {
+            val settingsViewModel: SettingsViewModel = hiltViewModel()
+            val userPrefs = settingsViewModel.userPrefs
+
            val themmoController = rememberThemmoController(
                lightColorScheme = LightThemeColors,
                darkColorScheme = DarkThemeColors,
-                // Anything below  will not called if theming mode is still loading from DataStore
-                themingMode = themesViewModel.themingMode ?: return@setContent,
-                dynamicThemeEnabled = themesViewModel.enableDynamic,
-                amoledThemeEnabled = themesViewModel.enableAmoled
+                // Anything below will not called if theming mode is still loading from DataStore
+                themingMode = userPrefs.themingMode ?: return@setContent,
+                dynamicThemeEnabled = userPrefs.enableDynamicTheme,
+                amoledThemeEnabled = userPrefs.enableAmoledTheme
            )
            val navController = rememberNavController()
            val sysUiController = rememberSystemUiController()
@ -84,8 +87,7 @@ class MainActivity : ComponentActivity() {

                UnittoApp(
                    navController = navController,
-                    mainViewModel = mainViewModel,
-                    themesViewModel = themesViewModel,
+                    settingsViewModel = settingsViewModel,
                    themmoController = it
                )

@ -93,21 +95,16 @@ class MainActivity : ComponentActivity() {
            }
        }
    }
-
-    override fun onPause() {
-        mainViewModel.saveLatestPairOfUnits()
-        super.onPause()
-    }
 }

@Composable
 fun UnittoApp(
    navController: NavHostController,
-    mainViewModel: MainViewModel,
-    themesViewModel: ThemesViewModel,
+    settingsViewModel: SettingsViewModel,
    themmoController: ThemmoController
 ) {
    val secondViewModel: SecondViewModel = hiltViewModel()
+    val mainViewModel: MainViewModel = hiltViewModel()
    NavHost(
        navController = navController,
        startDestination = MAIN_SCREEN
@ -139,19 +136,32 @@ fun UnittoApp(
            )
        }

+        settingGraph(
+            settingsViewModel = settingsViewModel,
+            themmoController = themmoController,
+            navController = navController
+        )
+    }
+}
+
+private fun NavGraphBuilder.settingGraph(
+    settingsViewModel: SettingsViewModel,
+    themmoController: ThemmoController,
+    navController: NavHostController
+) {
+    navigation(SETTINGS_SCREEN, SETTINGS_GRAPH) {
        composable(SETTINGS_SCREEN) {
            SettingsScreen(
-                mainViewModel = mainViewModel,
-                navigateUpAction = { navController.navigateUp() },
-                navControllerAction = { route -> navController.navigate(route) }
-            )
+                viewModel = settingsViewModel,
+                navigateUpAction = { navController.navigateUp() }
+            ) { route -> navController.navigate(route) }
        }

        composable(THEMES_SCREEN) {
            ThemesScreen(
                navigateUpAction = { navController.navigateUp() },
                themmoController = themmoController,
-                viewModel = themesViewModel
+                viewModel = settingsViewModel
            )
        }

--- a/app/src/main/java/com/sadellie/unitto/data/NavRoutes.kt
+++ b/app/src/main/java/com/sadellie/unitto/data/NavRoutes.kt
@ -27,6 +27,7 @@ object NavRoutes {
    const val LEFT_LIST_SCREEN = "LeftScreen"
    const val RIGHT_LIST_SCREEN = "RightScreen"

+    const val SETTINGS_GRAPH = "SettingsGraph"
    const val SETTINGS_SCREEN = "SettingsScreen"
    const val THEMES_SCREEN = "ThemesScreen"
    const val ABOUT_SCREEN = "AboutScreen"
--- a/app/src/main/java/com/sadellie/unitto/data/preferences/Separator.kt
+++ b/app/src/main/java/com/sadellie/unitto/data/preferences/Separator.kt
@ -34,8 +34,8 @@ object Separator {
 */
 val SEPARATORS: Map<Int, Int> by lazy {
    mapOf(
+        Separator.SPACES to R.string.spaces,
        Separator.PERIOD to R.string.period,
-        Separator.COMMA to R.string.comma,
-        Separator.SPACES to R.string.spaces
+        Separator.COMMA to R.string.comma
    )
 }
--- a/app/src/main/java/com/sadellie/unitto/data/preferences/UserPreferences.kt
+++ b/app/src/main/java/com/sadellie/unitto/data/preferences/UserPreferences.kt
@ -37,7 +37,8 @@ import javax.inject.Inject
 /**
 * Represents user preferences that are user across the app
 *
- * @property themingMode [ThemingMode] from Themmo
+ * @property themingMode [ThemingMode] from Themmo. Nullable just to indicate that preferences are
+ * still loading.
 * @property enableDynamicTheme Use dynamic color scheme
 * @property enableAmoledTheme Use amoled color scheme
 * @property digitsPrecision Current [PRECISIONS]. Number of digits in fractional part
@ -48,15 +49,15 @@ import javax.inject.Inject
 * @property enableAnalytics Whether or not user wants to share application usage data
 */
 data class UserPreferences(
-    val themingMode: ThemingMode,
-    val enableDynamicTheme: Boolean,
-    val enableAmoledTheme: Boolean,
-    val digitsPrecision: Int,
-    val separator: Int,
-    val outputFormat: Int,
-    val latestLeftSideUnit: String,
-    val latestRightSideUnit: String,
-    val enableAnalytics: Boolean
+    val themingMode: ThemingMode? = null,
+    val enableDynamicTheme: Boolean = false,
+    val enableAmoledTheme: Boolean = false,
+    val digitsPrecision: Int = 3,
+    val separator: Int = Separator.SPACES,
+    val outputFormat: Int = OutputFormat.PLAIN,
+    val latestLeftSideUnit: String = MyUnitIDS.kilometer,
+    val latestRightSideUnit: String = MyUnitIDS.mile,
+    val enableAnalytics: Boolean = true
 )

 /**
--- a/app/src/main/java/com/sadellie/unitto/screens/MainViewModel.kt
+++ b/app/src/main/java/com/sadellie/unitto/screens/MainViewModel.kt
@ -25,14 +25,13 @@ import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.setValue
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
-import com.google.firebase.analytics.FirebaseAnalytics
 import com.google.firebase.crashlytics.FirebaseCrashlytics
 import com.sadellie.unitto.data.KEY_0
 import com.sadellie.unitto.data.KEY_DOT
 import com.sadellie.unitto.data.KEY_MINUS
 import com.sadellie.unitto.data.preferences.MAX_PRECISION
 import com.sadellie.unitto.data.preferences.OutputFormat
-import com.sadellie.unitto.data.preferences.Separator
+import com.sadellie.unitto.data.preferences.UserPreferences
 import com.sadellie.unitto.data.preferences.UserPreferencesRepository
 import com.sadellie.unitto.data.units.AbstractUnit
 import com.sadellie.unitto.data.units.AllUnitsRepository
@ -56,55 +55,7 @@ class MainViewModel @Inject constructor(
    private val application: Application,
    private val allUnitsRepository: AllUnitsRepository
 ) : ViewModel() {
-    var precision: Int by mutableStateOf(3)
-        private set
-    var separator: Int by mutableStateOf(Separator.SPACES)
-        private set
-    var outputFormat: Int by mutableStateOf(OutputFormat.PLAIN)
-        private set
-    var enableAnalytics: Boolean by mutableStateOf(false)
-        private set
-
-    /**
-     * See [UserPreferencesRepository.updateDigitsPrecision]
-     */
-    fun updatePrecision(precision: Int) {
-        viewModelScope.launch {
-            userPrefsRepository.updateDigitsPrecision(precision)
-            convertValue()
-        }
-    }
-
-    /**
-     * See [UserPreferencesRepository.updateSeparator]
-     */
-    fun updateSeparator(separator: Int) {
-        viewModelScope.launch {
-            userPrefsRepository.updateSeparator(separator)
-            convertValue()
-        }
-    }
-
-    /**
-     * See [UserPreferencesRepository.updateOutputFormat]
-     */
-    fun updateOutputFormat(outputFormat: Int) {
-        viewModelScope.launch {
-            userPrefsRepository.updateOutputFormat(outputFormat)
-            convertValue()
-        }
-    }
-
-    /**
-     * See [UserPreferencesRepository.updateEnableAnalytics]
-     */
-    fun updateEnableAnalytics(enableAnalytics: Boolean) {
-        viewModelScope.launch {
-            userPrefsRepository.updateEnableAnalytics(enableAnalytics)
-            FirebaseAnalytics.getInstance(application)
-                .setAnalyticsCollectionEnabled(enableAnalytics)
-        }
-    }
+    private var userPrefs = UserPreferences()

    /**
     * Unit we converting from (left side)
@ -130,7 +81,11 @@ class MainViewModel @Inject constructor(
    private fun convertValue() {
        // Converting value using a specified precision
        val convertedValue: BigDecimal =
-            unitFrom.convert(unitTo, mainUIState.inputValue.toBigDecimal(), precision)
+            unitFrom.convert(
+                unitTo,
+                mainUIState.inputValue.toBigDecimal(),
+                userPrefs.digitsPrecision
+            )

        /**
         * There is a very interesting bug when trailing zeros are not stripped when input
@ -138,11 +93,11 @@ class MainViewModel @Inject constructor(
         * is zero, than we make sure there are no trailing zeros.
         */
        val resultValue =
-            if (convertedValue == BigDecimal.ZERO.setScale(precision, RoundingMode.HALF_EVEN)) {
+            if (convertedValue == BigDecimal.ZERO.setScale(userPrefs.digitsPrecision, RoundingMode.HALF_EVEN)) {
                KEY_0
            } else {
                // Setting result value using a specified OutputFormat
-                when (outputFormat) {
+                when (userPrefs.outputFormat) {
                    OutputFormat.ALLOW_ENGINEERING -> convertedValue.toString()
                    OutputFormat.FORCE_ENGINEERING -> convertedValue.toEngineeringString()
                    else -> convertedValue.toPlainString()
@ -183,6 +138,8 @@ class MainViewModel @Inject constructor(
            updateCurrenciesBasicUnits()
            // We can't call outside of this block. It will set precision to 0 in that case
            convertValue()
+            // Saving latest pair
+            saveLatestPairOfUnits()
        }
    }

@ -209,6 +166,8 @@ class MainViewModel @Inject constructor(
            )
            // We also need to increment counter for the selected unit
            incrementCounter(clickedUnit)
+            // Saving latest pair
+            saveLatestPairOfUnits()
        }

        // Changed units, now we can convert
@ -278,7 +237,10 @@ class MainViewModel @Inject constructor(
        unitFrom = unitTo.also {
            unitTo = unitFrom
        }
-        viewModelScope.launch { updateCurrenciesBasicUnits() }
+        viewModelScope.launch {
+            updateCurrenciesBasicUnits()
+            saveLatestPairOfUnits()
+        }
        // Swapped, can convert now
        convertValue()
    }
@ -382,10 +344,8 @@ class MainViewModel @Inject constructor(
    /**
     * Saves latest pair of units into datastore
     */
-    fun saveLatestPairOfUnits() {
-        viewModelScope.launch {
-            userPrefsRepository.updateLatestPairOfUnits(unitFrom, unitTo)
-        }
+    private suspend fun saveLatestPairOfUnits() {
+        userPrefsRepository.updateLatestPairOfUnits(unitFrom, unitTo)
    }

    /**
@ -395,36 +355,27 @@ class MainViewModel @Inject constructor(
     * values recompose when actually needed. For example, when you change output format, composable
     * in MainActivity will not be recomposed.
     */
-    private fun observePreferenceChanges() {
-        viewModelScope.launch {
-            userPrefsRepository.userPreferencesFlow.collect { userPref ->
-                precision = userPref.digitsPrecision
-                separator = userPref.separator.also { Formatter.setSeparator(it) }
-                outputFormat = userPref.outputFormat
-                enableAnalytics = userPref.enableAnalytics.also {
-                    // Maybe this is unnecessary
-                    if (it != enableAnalytics) FirebaseAnalytics.getInstance(application)
-                        .setAnalyticsCollectionEnabled(enableAnalytics)
-                }
-            }
+    suspend private fun observePreferenceChanges() {
+        userPrefsRepository.userPreferencesFlow.collect {
+            userPrefs = it
+            convertValue()
        }
    }

    init {
-        observePreferenceChanges()
        viewModelScope.launch {
-            val snapshot = userPrefsRepository.userPreferencesFlow.first()
+            userPrefs = userPrefsRepository.userPreferencesFlow.first()

            // First we load latest pair of units
            unitFrom = try {
-                allUnitsRepository.getById(snapshot.latestLeftSideUnit)
+                allUnitsRepository.getById(userPrefs.latestLeftSideUnit)
            } catch (e: java.util.NoSuchElementException) {
                Log.w("MainViewModel", "No unit with the given unitId")
                allUnitsRepository.getById(MyUnitIDS.kilometer)
            }

            unitTo = try {
-                allUnitsRepository.getById(snapshot.latestRightSideUnit)
+                allUnitsRepository.getById(userPrefs.latestRightSideUnit)
            } catch (e: java.util.NoSuchElementException) {
                Log.w("MainViewModel", "No unit with the given unitId")
                allUnitsRepository.getById(MyUnitIDS.mile)
@ -440,6 +391,7 @@ class MainViewModel @Inject constructor(
            mainUIState = mainUIState.copy(isLoadingDatabase = false)
            updateCurrenciesBasicUnits()
            convertValue()
+            observePreferenceChanges()
        }
    }
 }
--- a/app/src/main/java/com/sadellie/unitto/screens/setttings/AboutScreen.kt
+++ b/app/src/main/java/com/sadellie/unitto/screens/setttings/AboutScreen.kt
@ -16,7 +16,7 @@
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

-package com.sadellie.unitto.screens.about
+package com.sadellie.unitto.screens.setttings

 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Arrangement
--- a/app/src/main/java/com/sadellie/unitto/screens/setttings/SettingsScreen.kt
+++ b/app/src/main/java/com/sadellie/unitto/screens/setttings/SettingsScreen.kt
@ -33,7 +33,6 @@ import com.sadellie.unitto.data.NavRoutes.THEMES_SCREEN
 import com.sadellie.unitto.data.preferences.OUTPUT_FORMAT
 import com.sadellie.unitto.data.preferences.PRECISIONS
 import com.sadellie.unitto.data.preferences.SEPARATORS
-import com.sadellie.unitto.screens.MainViewModel
 import com.sadellie.unitto.screens.common.UnittoLargeTopAppBar
 import com.sadellie.unitto.screens.openLink
 import com.sadellie.unitto.screens.setttings.components.AlertDialogWithList
@ -42,7 +41,7 @@ import com.sadellie.unitto.screens.setttings.components.SettingsListItem

@Composable
 fun SettingsScreen(
-    mainViewModel: MainViewModel,
+    viewModel: SettingsViewModel,
    navigateUpAction: () -> Unit,
    navControllerAction: (String) -> Unit
 ) {
@ -121,8 +120,8 @@ fun SettingsScreen(
                SettingsListItem(
                    stringResource(R.string.send_usage_statistics),
                    stringResource(R.string.send_usage_statistics_support),
-                    mainViewModel.enableAnalytics
-                ) { mainViewModel.updateEnableAnalytics(it) }
+                    viewModel.userPrefs.enableAnalytics
+                ) { viewModel.updateEnableAnalytics(it) }
            }

            // THIRD PARTY
@ -164,8 +163,8 @@ fun SettingsScreen(
            AlertDialogWithList(
                title = stringResource(id = R.string.precision_setting),
                listItems = PRECISIONS,
-                selectedItemIndex = mainViewModel.precision,
-                selectAction = { mainViewModel.updatePrecision(it) },
+                selectedItemIndex = viewModel.userPrefs.digitsPrecision,
+                selectAction = { viewModel.updatePrecision(it) },
                dismissAction = { resetDialog() },
                supportText = stringResource(id = R.string.precision_setting_info)
            )
@ -174,8 +173,8 @@ fun SettingsScreen(
            AlertDialogWithList(
                title = stringResource(id = R.string.separator_setting),
                listItems = SEPARATORS,
-                selectedItemIndex = mainViewModel.separator,
-                selectAction = { mainViewModel.updateSeparator(it) },
+                selectedItemIndex = viewModel.userPrefs.separator,
+                selectAction = { viewModel.updateSeparator(it) },
                dismissAction = { resetDialog() }
            )
        }
@ -183,8 +182,8 @@ fun SettingsScreen(
            AlertDialogWithList(
                title = stringResource(id = R.string.output_format_setting),
                listItems = OUTPUT_FORMAT,
-                selectedItemIndex = mainViewModel.outputFormat,
-                selectAction = { mainViewModel.updateOutputFormat(it) },
+                selectedItemIndex = viewModel.userPrefs.outputFormat,
+                selectAction = { viewModel.updateOutputFormat(it) },
                dismissAction = { resetDialog() },
                supportText = stringResource(id = R.string.output_format_setting_info)
            )
--- a/app/src/main/java/com/sadellie/unitto/screens/setttings/SettingsViewModel.kt
+++ b/app/src/main/java/com/sadellie/unitto/screens/setttings/SettingsViewModel.kt
@ -16,27 +16,29 @@
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

-package com.sadellie.unitto.screens.theming
+package com.sadellie.unitto.screens.setttings

+import android.app.Application
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.setValue
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
+import com.google.firebase.analytics.FirebaseAnalytics
+import com.sadellie.unitto.data.preferences.UserPreferences
 import com.sadellie.unitto.data.preferences.UserPreferencesRepository
+import com.sadellie.unitto.screens.Formatter
 import dagger.hilt.android.lifecycle.HiltViewModel
 import io.github.sadellie.themmo.ThemingMode
-import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.launch
 import javax.inject.Inject

@HiltViewModel
-class ThemesViewModel @Inject constructor(
-    private val userPrefsRepository: UserPreferencesRepository
+class SettingsViewModel @Inject constructor(
+    private val userPrefsRepository: UserPreferencesRepository,
+    private val application: Application,
 ) : ViewModel() {
-    var themingMode: ThemingMode? by mutableStateOf(null)
-    var enableDynamic by mutableStateOf(false)
-    var enableAmoled by mutableStateOf(false)
+    var userPrefs: UserPreferences by mutableStateOf(UserPreferences())

    /**
     * @see [UserPreferencesRepository.updateThemingMode]
@ -66,18 +68,49 @@ class ThemesViewModel @Inject constructor(
    }

    /**
-     * Collect saved theming options. Used on app launch.
+     * See [UserPreferencesRepository.updateDigitsPrecision]
     */
-    private fun collectThemeOptions() {
+    fun updatePrecision(precision: Int) {
        viewModelScope.launch {
-            val userPref = userPrefsRepository.userPreferencesFlow.first()
-            themingMode = userPref.themingMode
-            enableDynamic = userPref.enableDynamicTheme
-            enableAmoled = userPref.enableAmoledTheme
+            userPrefsRepository.updateDigitsPrecision(precision)
+        }
+    }
+
+    /**
+     * See [UserPreferencesRepository.updateSeparator]
+     */
+    fun updateSeparator(separator: Int) {
+        viewModelScope.launch {
+            userPrefsRepository.updateSeparator(separator)
+        }
+    }
+
+    /**
+     * See [UserPreferencesRepository.updateOutputFormat]
+     */
+    fun updateOutputFormat(outputFormat: Int) {
+        viewModelScope.launch {
+            userPrefsRepository.updateOutputFormat(outputFormat)
+        }
+    }
+
+    /**
+     * See [UserPreferencesRepository.updateEnableAnalytics]
+     */
+    fun updateEnableAnalytics(enableAnalytics: Boolean) {
+        viewModelScope.launch {
+            userPrefsRepository.updateEnableAnalytics(enableAnalytics)
+            FirebaseAnalytics.getInstance(application)
+                .setAnalyticsCollectionEnabled(enableAnalytics)
        }
    }

    init {
-        collectThemeOptions()
+        viewModelScope.launch {
+            userPrefsRepository.userPreferencesFlow.collect {
+                userPrefs = it
+                Formatter.setSeparator(it.separator)
+            }
+        }
    }
 }
--- a/app/src/main/java/com/sadellie/unitto/screens/setttings/ThemesScreen.kt
+++ b/app/src/main/java/com/sadellie/unitto/screens/setttings/ThemesScreen.kt
@ -16,7 +16,7 @@
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

-package com.sadellie.unitto.screens.theming
+package com.sadellie.unitto.screens.setttings

 import androidx.compose.animation.AnimatedVisibility
 import androidx.compose.animation.expandVertically
@ -36,7 +36,7 @@ import io.github.sadellie.themmo.ThemmoController
 fun ThemesScreen(
    navigateUpAction: () -> Unit = {},
    themmoController: ThemmoController,
-    viewModel: ThemesViewModel
+    viewModel: SettingsViewModel
 ) {
    UnittoLargeTopAppBar(
        title = stringResource(R.string.theme_setting),