feat: add max screen brightness option

CHANGELOG.md

@@ -7,6 +7,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased]
 ### Added
 - Added support for custom fonts
+- Option for maximum screen brightness in preview ([#234])
 
 ## [1.4.0] - 2025-10-29
 ### Changed
@@ -69,6 +70,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 [#97]: https://github.com/FossifyOrg/Camera/issues/97
 [#157]: https://github.com/FossifyOrg/Camera/issues/157
 [#177]: https://github.com/FossifyOrg/Camera/issues/177
+[#234]: https://github.com/FossifyOrg/Camera/issues/234
 
 [Unreleased]: https://github.com/FossifyOrg/Camera/compare/1.4.0...HEAD
 [1.4.0]: https://github.com/FossifyOrg/Camera/compare/1.3.1...1.4.0

app/src/main/kotlin/org/fossify/camera/activities/MainActivity.kt

@@ -68,6 +68,7 @@ class MainActivity : SimpleActivity(), PhotoProcessor.MediaSavedListener, Camera
     private var mIsHardwareShutterHandled = false
     private var mLastHandledOrientation = 0
     private var countDownTimer: CountDownTimer? = null
+    private var mOriginalBrightness: Float? = null
 
     private val tabSelectedListener = object : TabSelectedListener {
         override fun onTabSelected(tab: TabLayout.Tab) {
@@ -128,8 +129,8 @@ class MainActivity : SimpleActivity(), PhotoProcessor.MediaSavedListener, Camera
         }
 
         window.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON)
+        syncMaxBrightness()
         ensureTransparentNavigationBar()
-
         if (ViewCompat.getWindowInsetsController(window.decorView) == null) {
             window.decorView.systemUiVisibility =
                 View.SYSTEM_UI_FLAG_FULLSCREEN or View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
@@ -1028,4 +1029,18 @@ class MainActivity : SimpleActivity(), PhotoProcessor.MediaSavedListener, Camera
         timerText.beGone()
         shutter.setImageState(intArrayOf(-R.attr.state_timer_cancel), true)
     }
+
+    private fun syncMaxBrightness() {
+        if (config.maxBrightness) {
+            mOriginalBrightness = mOriginalBrightness ?: window.attributes.screenBrightness
+            window.attributes = window.attributes.apply {
+                screenBrightness = WindowManager.LayoutParams.BRIGHTNESS_OVERRIDE_FULL
+            }
+        } else {
+            mOriginalBrightness?.let {
+                window.attributes = window.attributes.apply { screenBrightness = it }
+                mOriginalBrightness = null
+            }
+        }
+    }
 }

app/src/main/kotlin/org/fossify/camera/activities/SettingsActivity.kt

@@ -40,6 +40,7 @@ class SettingsActivity : SimpleActivity() {
         setupLanguage()
         setupSound()
         setupVolumeButtonsAsShutter()
+        setupMaxBrightness()
         setupFlipPhotos()
         setupSavePhotoMetadata()
         setupSavePhotoVideoLocation()
@@ -53,7 +54,7 @@ class SettingsActivity : SimpleActivity() {
             arrayListOf(
                 settingsColorCustomizationLabel,
                 settingsGeneralSettingsLabel,
-                settingsShutterLabel,
+                settingsCameraLabel,
                 settingsSavingLabel,
             ).forEach {
                 it.setTextColor(properPrimaryColor)
@@ -160,6 +161,14 @@ class SettingsActivity : SimpleActivity() {
         }
     }
 
+    private fun setupMaxBrightness() = binding.apply {
+        settingsMaxBrightness.isChecked = config.maxBrightness
+        settingsMaxBrightnessHolder.setOnClickListener {
+            settingsMaxBrightness.toggle()
+            config.maxBrightness = settingsMaxBrightness.isChecked
+        }
+    }
+
     private fun setupFlipPhotos() = binding.apply {
         settingsFlipPhotos.isChecked = config.flipPhotos
         settingsFlipPhotosHolder.setOnClickListener {

app/src/main/kotlin/org/fossify/camera/helpers/Config.kt

@@ -94,6 +94,10 @@ class Config(context: Context) : BaseConfig(context) {
         )]
         set(captureMode) = prefs.edit().putInt(CAPTURE_MODE, captureMode.ordinal).apply()
 
+    var maxBrightness: Boolean
+        get() = prefs.getBoolean(MAX_BRIGHTNESS, false)
+        set(maxBrightness) = prefs.edit().putBoolean(MAX_BRIGHTNESS, maxBrightness).apply()
+
     var timerMode: TimerMode
         get() = TimerMode.values().getOrNull(prefs.getInt(TIMER_MODE, TimerMode.OFF.ordinal))
             ?: TimerMode.OFF

app/src/main/kotlin/org/fossify/camera/helpers/Constants.kt

@@ -22,6 +22,7 @@ const val SAVE_PHOTO_VIDEO_LOCATION = "save_photo_video_location"
 const val PHOTO_QUALITY = "photo_quality"
 const val CAPTURE_MODE = "capture_mode"
 const val TIMER_MODE = "timer_mode"
+const val MAX_BRIGHTNESS = "max_brightness"
 
 const val FLASH_OFF = 0
 const val FLASH_ON = 1

app/src/main/res/layout/activity_settings.xml

@@ -126,14 +126,14 @@
                 layout="@layout/divider" />
 
             <TextView
-                android:id="@+id/settings_shutter_label"
+                android:id="@+id/settings_camera_label"
                 style="@style/SettingsSectionLabelStyle"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
-                android:text="@string/shutter" />
+                android:text="@string/app_launcher_name" />
 
             <LinearLayout
-                android:id="@+id/settings_shutter_holder"
+                android:id="@+id/settings_camera_holder"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 android:orientation="vertical">
@@ -167,10 +167,25 @@
                         android:text="@string/volume_buttons_as_shutter" />
 
                 </RelativeLayout>
+
+                <RelativeLayout
+                    android:id="@+id/settings_max_brightness_holder"
+                    style="@style/SettingsHolderCheckboxStyle"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content">
+
+                    <org.fossify.commons.views.MyMaterialSwitch
+                        android:id="@+id/settings_max_brightness"
+                        style="@style/SettingsSwitchStyle"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:text="@string/max_brightness" />
+
+                </RelativeLayout>
             </LinearLayout>
 
             <include
-                android:id="@+id/settings_shutter_divider"
+                android:id="@+id/settings_camera_divider"
                 layout="@layout/divider" />
 
             <TextView

app/src/main/res/values/strings.xml

@@ -52,6 +52,7 @@
     <string name="save_photo_video_location">Save photo and video location</string>
     <string name="photo_compression_quality">Photo compression quality</string>
     <string name="shutter">Shutter</string>
+    <string name="max_brightness">Max screen brightness in preview</string>
     <!--
         Haven't found some strings? There's more at
         https://github.com/FossifyOrg/Commons/tree/master/commons/src/main/res

settings.gradle.kts

@@ -10,7 +10,7 @@ dependencyResolutionManagement {
     repositories {
         google()
         mavenCentral()
-        maven { setUrl("https://jitpack.io") }
+        maven { setUrl("https://www.jitpack.io") }
         mavenLocal()
     }
 }