e4610b3cd2
- Update Gradle namespace + applicationId - Move Kotlin sources + tests to new package path - Update package declarations across app - Build debug APK v17
49 lines
1.7 KiB
Kotlin
49 lines
1.7 KiB
Kotlin
package solutions.tretter.esunandroid
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import android.content.Context
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import android.content.Intent
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import android.provider.Settings
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/**
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* Best-effort detection of Android's built-in Night Light ("Night display").
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*
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* Note: OEM-specific blue light filters may not be detectable.
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*/
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object NightLight {
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fun isAndroidNightLightEnabled(context: Context): Boolean {
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val cr = context.contentResolver
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// AOSP Night Light
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if (readSecureInt(cr, "night_display_activated") == 1) return true
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// Samsung "Eye comfort shield" / blue light filter (best-effort; OEM keys may vary)
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// Common keys observed on Samsung builds:
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// - blue_light_filter (0/1)
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// NOTE: We intentionally do NOT use *_opacity as a signal, because devices may keep the
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// last-used opacity value even when the feature is turned off.
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if (readSystemInt(cr, "blue_light_filter") == 1) return true
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// Some builds use a different boolean key name.
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if (readSystemInt(cr, "blue_light_filter_enabled") == 1) return true
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return false
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}
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fun nightLightSettingsIntent(): Intent {
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// Night Light settings screen (may not exist on all OEMs)
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return Intent(Settings.ACTION_NIGHT_DISPLAY_SETTINGS)
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}
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fun displaySettingsIntent(): Intent {
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return Intent(Settings.ACTION_DISPLAY_SETTINGS)
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}
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private fun readSecureInt(cr: android.content.ContentResolver, key: String): Int? {
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return runCatching { Settings.Secure.getInt(cr, key) }.getOrNull()
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}
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private fun readSystemInt(cr: android.content.ContentResolver, key: String): Int? {
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return runCatching { Settings.System.getInt(cr, key) }.getOrNull()
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}
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}
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