feat: Add option to force colored wallpaper

This commit introduces a new experimental feature that allows users to force a solid color wallpaper based on the app's selected background color.

The main changes include:
- Adding a `SET_WALLPAPER` permission to the `AndroidManifest.xml`.
- Implementing the logic in `BaseFragment.kt` to set the system and lock screen wallpaper if the option is enabled.
- Introducing a "Force Colored Wallpaper" toggle in the experimental settings UI.
- Adding a `forceWallpaper` preference to `Prefs.kt` and `PrefsKeys.kt`.
- Refactoring `SettingsComposable.kt` to correctly update the text color of settings options on recomposition.

Author: CreativeCodeCat

app/src/main/AndroidManifest.xml

@@ -21,6 +21,7 @@
     <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
     <uses-permission android:name="android.permission.USE_BIOMETRIC" />
     <uses-permission android:name="android.permission.READ_CONTACTS" />
+    <uses-permission android:name="android.permission.SET_WALLPAPER" />
     <uses-permission android:name="android.permission.VIBRATE" />
     <uses-permission
         android:name="android.permission.BIND_APPWIDGET"

app/src/main/java/com/github/droidworksstudio/mlauncher/data/Prefs.kt

@@ -189,6 +189,10 @@ class Prefs(val context: Context) {
         get() = getSetting(AUTO_OPEN_APP, false)
         set(value) = prefsNormal.edit { putBoolean(AUTO_OPEN_APP, value) }
 
+    var forceWallpaper: Boolean
+        get() = getSetting(FORCE_COLORED_WALLPAPER, false)
+        set(value) = prefsNormal.edit { putBoolean(FORCE_COLORED_WALLPAPER, value) }
+
     var openAppOnEnter: Boolean
         get() = getSetting(OPEN_APP_ON_ENTER, false)
         set(value) = prefsNormal.edit { putBoolean(OPEN_APP_ON_ENTER, value) }

app/src/main/java/com/github/droidworksstudio/mlauncher/data/PrefsKeys.kt

@@ -11,6 +11,7 @@ internal const val LOCK_ORIENTATION_PORTRAIT = "LOCK_ORIENTATION_PORTRAIT"
 internal const val HAPTIC_FEEDBACK = "HAPTIC_FEEDBACK"
 internal const val FIRST_OPEN = "FIRST_OPEN"
 internal const val FIRST_SETTINGS_OPEN = "FIRST_SETTINGS_OPEN"
+internal const val FORCE_COLORED_WALLPAPER = "FORCE_COLORED_WALLPAPER"
 
 // Home & Drawer
 internal const val HOME_APPS_NUM = "HOME_APPS_NUM"

app/src/main/java/com/github/droidworksstudio/mlauncher/ui/BaseFragment.kt

@@ -1,7 +1,9 @@
 package com.github.droidworksstudio.mlauncher.ui
 
+import android.app.WallpaperManager
 import android.os.Bundle
 import androidx.appcompat.app.AppCompatDelegate
+import androidx.core.graphics.createBitmap
 import androidx.fragment.app.Fragment
 import com.github.droidworksstudio.mlauncher.data.Constants
 import com.github.droidworksstudio.mlauncher.data.Prefs
@@ -28,5 +30,23 @@ open class BaseFragment : Fragment() {
         }
         AppCompatDelegate.setDefaultNightMode(themeMode)
     }
+
+    override fun onStart() {
+        super.onStart()
+
+        if (prefs.forceWallpaper) {
+            val wallpaperManager = WallpaperManager.getInstance(requireContext())
+            val backgroundColor = prefs.backgroundColor
+
+            // Create a solid color bitmap
+            val bitmap = createBitmap(1, 1).apply {
+                eraseColor(backgroundColor)
+            }
+
+            // Set the wallpaper
+            wallpaperManager.setBitmap(bitmap, null, true, WallpaperManager.FLAG_SYSTEM) // home
+            wallpaperManager.setBitmap(bitmap, null, true, WallpaperManager.FLAG_LOCK)   // lock
+        }
+    }
 }
 

app/src/main/java/com/github/droidworksstudio/mlauncher/ui/SettingsFragment.kt

@@ -344,6 +344,7 @@ class SettingsFragment : BaseFragment() {
         // Experimental Settings
         var toggledExpertOptions by remember { mutableStateOf(prefs.enableExpertOptions) }
         var selectedSettingsSize by remember { mutableIntStateOf(prefs.settingsSize) }
+        var toggledForceWallpaper by remember { mutableStateOf(prefs.forceWallpaper) }
         var toggledSettingsLocked by remember { mutableStateOf(prefs.settingsLocked) }
         var toggledLockOrientation by remember { mutableStateOf(prefs.lockOrientation) }
         var toggledHapticFeedback by remember { mutableStateOf(prefs.hapticFeedback) }
@@ -1393,7 +1394,7 @@ class SettingsFragment : BaseFragment() {
                         title = getLocalizedString(R.string.background_color),
                         option = hexBackgroundColor,
                         fontSize = titleFontSize,
-                        fontColor = Color(hexBackgroundColor.toColorInt()),
+                        fontColor = Color(selectedBackgroundColor),
                         onClick = {
                             dialogBuilder.showColorPickerBottomSheet(
                                 context = requireContext(),
@@ -2595,7 +2596,7 @@ class SettingsFragment : BaseFragment() {
                     PageHeader(
                         iconRes = R.drawable.ic_back,
                         title = getLocalizedString(R.string.about_settings_title, getLocalizedString(R.string.app_name)),
-                        
+
                         onClick = {
                             currentScreen = "main"
                         }
@@ -2719,6 +2720,17 @@ class SettingsFragment : BaseFragment() {
                         }
                     )
 
+                    SettingsSwitch(
+                        text = getLocalizedString(R.string.force_colored_wallpaper),
+                        fontSize = titleFontSize,
+                        defaultState = toggledForceWallpaper,
+
+                        onCheckedChange = {
+                            toggledForceWallpaper = !prefs.forceWallpaper
+                            prefs.forceWallpaper = toggledForceWallpaper
+                        }
+                    )
+
                     if (requireContext().isBiometricEnabled()) {
                         SettingsSwitch(
                             text = getLocalizedString(R.string.lock_settings),

app/src/main/java/com/github/droidworksstudio/mlauncher/ui/compose/SettingsComposable.kt

@@ -495,7 +495,6 @@ object SettingsComposable {
         onClick: () -> Unit = {},
     ) {
         val fontSizeSp = fontSize.value
-        val fontColorInt = fontColor.toArgb()
 
         Row(
             modifier = Modifier
@@ -507,31 +506,30 @@ object SettingsComposable {
                 factory = { context ->
                     FontAppCompatTextView(context).apply {
                         setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp)
-                        setTextColor(fontColorInt)
                     }
                 },
                 modifier = Modifier
                     .weight(1f)
                     .wrapContentHeight(),
                 update = { textView ->
                     textView.text = title
+                    textView.setTextColor(fontColor.toArgb()) // <- update color here
                 }
             )
 
             AndroidView(
                 factory = { context ->
                     FontAppCompatTextView(context).apply {
                         setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp)
-                        setTextColor(fontColorInt)
                         setOnClickListener { onClick() }
                     }
                 },
                 modifier = Modifier.wrapContentSize(),
                 update = { textView ->
-                    textView.text = option  // update text on recomposition
+                    textView.text = option
+                    textView.setTextColor(fontColor.toArgb()) // <- update color here
                 }
             )
-
         }
     }
 }

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

@@ -95,6 +95,7 @@
     <string name="pages_on_home_screen">Number of Pages</string>
     <string name="enable_home_pager">Enable Home Pager</string>
     <string name="enable_app_timer">Enable App Timer</string>
+    <string name="force_colored_wallpaper">Force Colored Wallpaper</string>
 
     <string name="info_tiles">Info Tiles</string>