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Fix app cold start jank (#3492)

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This commit is contained in:
Phil Oliver
2025-10-17 16:12:13 -04:00
committed by GitHub
parent 9f91b73ea0
commit e889975987
1 changed files with 8 additions and 3 deletions
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11
core/datastore/src/main/kotlin/org/meshtastic/core/datastore/UiPreferencesDataSource.kt
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@@ -48,7 +48,9 @@ class UiPreferencesDataSource @Inject constructor(private val dataStore: DataSto
private val scope = CoroutineScope(SupervisorJob() + Dispatchers.IO)
val appIntroCompleted: StateFlow<Boolean> = dataStore.prefStateFlow(key = APP_INTRO_COMPLETED, default = false)
// Start this flow eagerly, so app intro doesn't flash (when disabled) on cold app start.
val appIntroCompleted: StateFlow<Boolean> =
dataStore.prefStateFlow(key = APP_INTRO_COMPLETED, default = false, started = SharingStarted.Eagerly)
// Default value for AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM
val theme: StateFlow<Int> = dataStore.prefStateFlow(key = THEME, default = -1)
@@ -87,8 +89,11 @@ class UiPreferencesDataSource @Inject constructor(private val dataStore: DataSto
dataStore.setPref(key = SHOW_IGNORED, value = value)
}
private fun <T : Any> DataStore<Preferences>.prefStateFlow(key: Preferences.Key<T>, default: T): StateFlow<T> =
data.map { it[key] ?: default }.stateIn(scope = scope, started = SharingStarted.Lazily, initialValue = default)
private fun <T : Any> DataStore<Preferences>.prefStateFlow(
key: Preferences.Key<T>,
default: T,
started: SharingStarted = SharingStarted.Lazily,
): StateFlow<T> = data.map { it[key] ?: default }.stateIn(scope = scope, started = started, initialValue = default)
private fun <T : Any> DataStore<Preferences>.setPref(key: Preferences.Key<T>, value: T) {
scope.launch { edit { it[key] = value } }