Created
July 12, 2023 13:26
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CustomLocalAccessibilityManager
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| import android.content.Context | |
| import android.os.Build | |
| import androidx.annotation.DoNotInline | |
| import androidx.annotation.RequiresApi | |
| import androidx.compose.ui.platform.AccessibilityManager | |
| class AndroidAccessibilityManager(context: Context) : AccessibilityManager { | |
| private companion object { | |
| const val FlagContentIcons = 1 | |
| const val FlagContentText = 2 | |
| const val FlagContentControls = 4 | |
| } | |
| private val accessibilityManager = context.getSystemService(Context.ACCESSIBILITY_SERVICE) as | |
| android.view.accessibility.AccessibilityManager | |
| override fun calculateRecommendedTimeoutMillis( | |
| originalTimeoutMillis: Long, | |
| containsIcons: Boolean, | |
| containsText: Boolean, | |
| containsControls: Boolean, | |
| ): Long { | |
| if (originalTimeoutMillis >= Int.MAX_VALUE) { | |
| return originalTimeoutMillis | |
| } | |
| var uiContentFlags = 0 | |
| if (containsIcons) { | |
| uiContentFlags = uiContentFlags or FlagContentIcons | |
| } | |
| if (containsText) { | |
| uiContentFlags = uiContentFlags or FlagContentText | |
| } | |
| if (containsControls) { | |
| uiContentFlags = uiContentFlags or FlagContentControls | |
| } | |
| return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) { | |
| val recommended = Api29Impl.getRecommendedTimeoutMillis( | |
| accessibilityManager, | |
| originalTimeoutMillis.toInt(), | |
| uiContentFlags, | |
| ) | |
| if (recommended == Int.MAX_VALUE) { | |
| Long.MAX_VALUE | |
| } else { | |
| recommended.toLong() | |
| } | |
| } else if (containsControls && accessibilityManager.isTouchExplorationEnabled) { | |
| Long.MAX_VALUE | |
| } else { | |
| originalTimeoutMillis | |
| } | |
| } | |
| fun isTalkbackEnabled(): Boolean { | |
| return accessibilityManager.isEnabled && accessibilityManager.isTouchExplorationEnabled | |
| } | |
| } | |
| @RequiresApi(Build.VERSION_CODES.Q) | |
| internal object Api29Impl { | |
| @DoNotInline | |
| fun getRecommendedTimeoutMillis( | |
| accessibilityManager: android.view.accessibility.AccessibilityManager, | |
| originalTimeout: Int, | |
| uiContentFlags: Int, | |
| ): Int { | |
| return accessibilityManager.getRecommendedTimeoutMillis(originalTimeout, uiContentFlags) | |
| } | |
| } | |
| val CustomLocalAccessibilityManager = staticCompositionLocalOf<AndroidAccessibilityManager?> { null } | |
| @Composable | |
| fun DemoCompositionLocalAccessibility() { | |
| Column() { | |
| CompositionLocalProvider( | |
| CustomLocalAccessibilityManager provides AndroidAccessibilityManager(LocalContext.current), | |
| ) { | |
| Column { | |
| Text("Texte 1") | |
| if (CustomLocalAccessibilityManager.current?.isTalkbackEnabled() == true) { | |
| Text("Talkback enabled") | |
| } else { | |
| Text("No") | |
| } | |
| } | |
| } | |
| } | |
| } |
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