Merge pull request #112 from acanoe/features/hide-navigation-bar

feat: Add option to hide navigation bar on home screen

app/src/main/java/de/jrpie/android/launcher/preferences/LauncherPreferences$Config.java

@@ -62,7 +62,8 @@ import eu.jonahbauer.android.preference.annotations.Preferences;
                 }),
                 @PreferenceGroup(name = "display", prefix = "settings_display_", suffix = "_key", value = {
                         @Preference(name = "screen_timeout_disabled", type = boolean.class, defaultValue = "false"),
-                        @Preference(name = "full_screen", type = boolean.class, defaultValue = "true"),
+                        @Preference(name = "hide_status_bar", type = boolean.class, defaultValue = "true"),
+                        @Preference(name = "hide_navigation_bar", type = boolean.class, defaultValue = "false"),
                         @Preference(name = "rotate_screen", type = boolean.class, defaultValue = "true"),
                 }),
                 @PreferenceGroup(name = "functionality", prefix = "settings_functionality_", suffix = "_key", value = {

app/src/main/java/de/jrpie/android/launcher/ui/HomeActivity.kt

@@ -9,6 +9,9 @@ import android.util.DisplayMetrics
 import android.view.KeyEvent
 import android.view.MotionEvent
 import android.view.View
+import android.view.Window
+import android.view.WindowInsets
+import android.view.WindowInsetsController
 import android.window.OnBackInvokedDispatcher
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.view.isVisible
@@ -99,6 +102,15 @@ class HomeActivity : UIObject, AppCompatActivity() {
 
     }
 
+    override fun onWindowFocusChanged(hasFocus: Boolean) {
+        super.onWindowFocusChanged(hasFocus)
+
+        if (hasFocus && LauncherPreferences.display().hideNavigationBar()) {
+            hideNavigationBar()
+        }
+    }
+
+
     private fun updateSettingsFallbackButtonVisibility() {
         // If µLauncher settings can not be reached from any action bound to an enabled gesture,
         // show the fallback button.
@@ -186,6 +198,7 @@ class HomeActivity : UIObject, AppCompatActivity() {
                 // Only used pre Android 13, cf. onBackInvokedDispatcher
                 handleBack()
             }
+
             KeyEvent.KEYCODE_VOLUME_UP -> {
                 if (Action.forGesture(Gesture.VOLUME_UP) == LauncherAction.VOLUME_UP) {
                     // Let the OS handle the key event. This works better with some custom ROMs

app/src/main/java/de/jrpie/android/launcher/ui/UIObject.kt

@@ -3,7 +3,11 @@ package de.jrpie.android.launcher.ui
 import android.app.Activity
 import android.content.pm.ActivityInfo
 import android.content.res.Resources
+import android.os.Build
+import android.view.View
 import android.view.Window
+import android.view.WindowInsets
+import android.view.WindowInsetsController
 import android.view.WindowManager
 import de.jrpie.android.launcher.preferences.LauncherPreferences
 
@@ -14,7 +18,7 @@ import de.jrpie.android.launcher.preferences.LauncherPreferences
 fun setWindowFlags(window: Window, homeScreen: Boolean) {
     window.setFlags(0, 0) // clear flags
     // Display notification bar
-    if (LauncherPreferences.display().fullScreen())
+    if (LauncherPreferences.display().hideStatusBar())
         window.setFlags(
             WindowManager.LayoutParams.FLAG_FULLSCREEN,
             WindowManager.LayoutParams.FLAG_FULLSCREEN
@@ -36,17 +40,19 @@ fun setWindowFlags(window: Window, homeScreen: Boolean) {
 
 }
 
+
 interface UIObject {
     fun onCreate() {
-        if (this is Activity) {
+        if (this !is Activity) {
-            setWindowFlags(window, isHomeScreen())
+            return
-
+        }
-            if (!LauncherPreferences.display().rotateScreen()) {
+        setWindowFlags(window, isHomeScreen())
-                requestedOrientation = ActivityInfo.SCREEN_ORIENTATION_NOSENSOR
-            }
 
+        if (!LauncherPreferences.display().rotateScreen()) {
+            requestedOrientation = ActivityInfo.SCREEN_ORIENTATION_NOSENSOR
         }
     }
+
     fun onStart() {
         setOnClicks()
         adjustLayout()
@@ -70,4 +76,26 @@ interface UIObject {
     fun isHomeScreen(): Boolean {
         return false
     }
+
+
+    @Suppress("DEPRECATION")
+    fun hideNavigationBar() {
+        if (this !is Activity) {
+            return
+        }
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+            window.insetsController?.apply {
+                hide(WindowInsets.Type.navigationBars())
+                systemBarsBehavior =
+                    WindowInsetsController.BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE
+            }
+        } else {
+            // Try to hide the navigation bar but do not hide the status bar
+            window.decorView.systemUiVisibility = (View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
+                    or View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
+                    or View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY
+                    or View.SYSTEM_UI_FLAG_IMMERSIVE
+                    or View.SYSTEM_UI_FLAG_LAYOUT_STABLE)
+        }
+    }
 }

app/src/main/java/de/jrpie/android/launcher/ui/list/ListActivity.kt

@@ -155,7 +155,7 @@ class ListActivity : AppCompatActivity(), UIObject {
                     binding.listContainer.context.resources.displayMetrics.heightPixels
                 val diff = height - r.bottom
                 if (diff != 0 &&
-                    LauncherPreferences.display().fullScreen()
+                    LauncherPreferences.display().hideStatusBar()
                 ) {
                     if (binding.listContainer.paddingBottom != diff) {
                         binding.listContainer.setPadding(0, 0, 0, diff)

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

@@ -137,8 +137,9 @@
           -
           -->
         <string name="settings_display_screen_timeout_disabled_key" translatable="false">display.disable_timeout</string>
-        <string name="settings_display_full_screen_key" translatable="false">display.use_full_screen</string>
         <string name="settings_display_rotate_screen_key" translatable="false">display.rotate_screen</string>
+        <string name="settings_display_hide_status_bar_key" translatable="false">display.use_full_screen</string>
+        <string name="settings_display_hide_navigation_bar_key" translatable="false">display.hide_navigation</string>
 
         <string name="settings_enabled_gestures_double_swipe_key" translatable="false">enabled_gestures.double_actions</string>
         <string name="settings_enabled_gestures_edge_swipe_key" translatable="false">enabled_gestures.edge_actions</string>

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

@@ -153,7 +153,8 @@
     <string name="settings_launcher_section_display">Display</string>
 
     <string name="settings_display_screen_timeout_disabled">Keep screen on</string>
-    <string name="settings_display_full_screen">Use full screen</string>
+    <string name="settings_display_hide_status_bar">Hide status bar</string>
+    <string name="settings_display_hide_navigation_bar">Hide navigation bar</string>
     <string name="settings_display_rotate_screen">Rotate screen</string>
 
     <string name="settings_launcher_section_functionality">Functionality</string>

app/src/main/res/xml/preferences.xml

@@ -174,10 +174,6 @@
     <PreferenceCategory
         android:title="@string/settings_launcher_section_display"
         app:allowDividerAbove="false">
-        <SwitchPreference
-            android:key="@string/settings_display_full_screen_key"
-            android:defaultValue="true"
-            android:title="@string/settings_display_full_screen"/>
         <SwitchPreference
             android:key="@string/settings_display_rotate_screen_key"
             android:defaultValue="true"
@@ -186,6 +182,14 @@
             android:key="@string/settings_display_screen_timeout_disabled_key"
             android:defaultValue="false"
             android:title="@string/settings_display_screen_timeout_disabled"/>
+        <SwitchPreference
+            android:key="@string/settings_display_hide_status_bar_key"
+            android:defaultValue="true"
+            android:title="@string/settings_display_hide_status_bar"/>
+        <SwitchPreference
+            android:key="@string/settings_display_hide_navigation_bar_key"
+            android:defaultValue="false"
+            android:title="@string/settings_display_hide_navigation_bar"/>
 
 
     </PreferenceCategory>