Add options to hide system bars

ui/src/main/java/de/mm20/launcher2/ui/launcher/LauncherActivity.kt

@@ -4,9 +4,13 @@ import android.app.WallpaperManager
 import android.content.Intent
 import android.content.res.Configuration
 import android.os.Bundle
-import android.view.*
+import android.view.LayoutInflater
+import android.view.View
 import androidx.activity.viewModels
 import androidx.core.view.*
+import androidx.lifecycle.Lifecycle
+import androidx.lifecycle.lifecycleScope
+import androidx.lifecycle.repeatOnLifecycle
 import com.afollestad.materialdialogs.LayoutMode
 import com.afollestad.materialdialogs.MaterialDialog
 import com.afollestad.materialdialogs.bottomsheets.BottomSheet
@@ -14,12 +18,14 @@ import com.afollestad.materialdialogs.callbacks.onDismiss
 import com.afollestad.materialdialogs.customview.customView
 import de.mm20.launcher2.icons.DynamicIconController
 import de.mm20.launcher2.icons.IconRepository
-import de.mm20.launcher2.ui.legacy.helper.ActivityStarter
 import de.mm20.launcher2.ui.R
 import de.mm20.launcher2.ui.base.BaseActivity
 import de.mm20.launcher2.ui.databinding.ActivityLauncherBinding
 import de.mm20.launcher2.ui.launcher.modals.EditFavoritesView
 import de.mm20.launcher2.ui.launcher.modals.HiddenItemsView
+import de.mm20.launcher2.ui.legacy.helper.ActivityStarter
+import kotlinx.coroutines.flow.collectLatest
+import kotlinx.coroutines.launch
 import org.koin.android.ext.android.inject
 
 
@@ -53,13 +59,31 @@ class LauncherActivity : BaseActivity() {
         }
 
         val windowController = WindowInsetsControllerCompat(window, binding.rootView)
+        windowController.systemBarsBehavior = WindowInsetsControllerCompat.BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE
+
         viewModel.lightStatusBar.observe(this) {
             windowController.isAppearanceLightStatusBars = it
         }
+
         viewModel.lightNavBar.observe(this) {
             windowController.isAppearanceLightNavigationBars = it
         }
 
+        viewModel.hideStatusBar.observe(this) {
+            if (it) {
+                windowController.hide(WindowInsetsCompat.Type.statusBars())
+            } else {
+                windowController.show(WindowInsetsCompat.Type.statusBars())
+            }
+        }
+        viewModel.hideNavBar.observe(this) {
+            if (it) {
+                windowController.hide(WindowInsetsCompat.Type.navigationBars())
+            } else {
+                windowController.show(WindowInsetsCompat.Type.navigationBars())
+            }
+        }
+
         var editFavoritesDialog: MaterialDialog? = null
         viewModel.isEditFavoritesShown.observe(this) {
             if (it) {

ui/src/main/java/de/mm20/launcher2/ui/launcher/LauncherActivityVM.kt

@@ -40,6 +40,9 @@ class LauncherActivityVM : ViewModel(), KoinComponent {
         !dim && light
     }.asLiveData()
 
+    val hideNavBar = dataStore.data.map { it.systemBars.hideNavBar }.asLiveData()
+    val hideStatusBar = dataStore.data.map { it.systemBars.hideStatusBar }.asLiveData()
+
     fun setDarkMode(darkMode: Boolean) {
         isDarkInMode.value = darkMode
     }

ui/src/main/java/de/mm20/launcher2/ui/settings/appearance/AppearanceSettingsScreen.kt

@@ -194,6 +194,22 @@ fun AppearanceSettingsScreen() {
                         viewModel.setLightNavBar(it)
                     }
                 )
+                val hideStatusBar by viewModel.hideStatusBar.observeAsState()
+                SwitchPreference(
+                    title = stringResource(R.string.preference_hide_status_bar),
+                    value = hideStatusBar == true,
+                    onValueChanged = {
+                        viewModel.setHideStatusBar(it)
+                    }
+                )
+                val hideNavBar by viewModel.hideNavBar.observeAsState()
+                SwitchPreference(
+                    title = stringResource(R.string.preference_hide_nav_bar),
+                    value = hideNavBar == true,
+                    onValueChanged = {
+                        viewModel.setHideNavBar(it)
+                    }
+                )
             }
         }
     }

ui/src/main/java/de/mm20/launcher2/ui/settings/appearance/AppearanceSettingsScreenVM.kt

@@ -178,4 +178,32 @@ class AppearanceSettingsScreenVM : ViewModel(), KoinComponent {
             }
         }
     }
+
+    val hideStatusBar = dataStore.data.map { it.systemBars.hideStatusBar }.asLiveData()
+    fun setHideStatusBar(hideStatusBar: Boolean) {
+        viewModelScope.launch {
+            dataStore.updateData {
+                it.toBuilder()
+                    .setSystemBars(
+                        it.systemBars.toBuilder()
+                            .setHideStatusBar(hideStatusBar)
+                    )
+                    .build()
+            }
+        }
+    }
+
+    val hideNavBar = dataStore.data.map { it.systemBars.hideNavBar }.asLiveData()
+    fun setHideNavBar(hideNavBar: Boolean) {
+        viewModelScope.launch {
+            dataStore.updateData {
+                it.toBuilder()
+                    .setSystemBars(
+                        it.systemBars.toBuilder()
+                            .setHideNavBar(hideNavBar)
+                    )
+                    .build()
+            }
+        }
+    }
 }