make it possible to switch to fullscreen

app/src/main/java/net/newpipe/newplayer/PlayerFragment.kt

@@ -29,6 +29,9 @@ import androidx.compose.ui.platform.ComposeView
 import androidx.compose.ui.platform.ViewCompositionStrategy
 import androidx.compose.ui.unit.dp
 import androidx.constraintlayout.widget.ConstraintLayout
+import androidx.core.view.WindowCompat
+import androidx.core.view.WindowInsetsCompat
+import androidx.core.view.WindowInsetsControllerCompat
 import androidx.core.view.updateLayoutParams
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.viewModels
@@ -50,10 +53,19 @@ class PlayerFragment() : Fragment() {
         container: ViewGroup?,
         savedInstanceState: Bundle?
     ): View? {
+        val window = activity?.window!!
+        val insetsController = WindowCompat.getInsetsController(window, window.decorView)
+        insetsController.systemBarsBehavior = WindowInsetsControllerCompat.BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE
+
         val view = inflater.inflate(R.layout.player_framgent, container, false)
         val composeView = view.findViewById<ComposeView>(R.id.player_copose_view)
         val frameView = view.findViewById<FrameLayout>(R.id.frame_layout)
 
+        if (viewModel.uiState.value.fullscreen) {
+            println("gurken fragment created for fullscreen")
+            insetsController.hide(WindowInsetsCompat.Type.systemBars())
+        }
+
         viewModel.listener = object : VideoPlayerViewModel.Listener {
             override fun requestUpdateLayoutRatio(ratio: Float) {
                 frameView.updateLayoutParams<ConstraintLayout.LayoutParams> {
@@ -62,10 +74,7 @@ class PlayerFragment() : Fragment() {
             }
 
             override fun switchToFullscreen() {
-                frameView.updateLayoutParams<ConstraintLayout.LayoutParams> {
-
-                    println("gurken fullscreen")
-                }
+                println("gurken fullscreen")
             }
         }
 

app/src/main/java/net/newpipe/newplayer/ui/VideoPlayerControllerUI.kt

@@ -22,6 +22,7 @@
 package net.newpipe.newplayer.ui
 
 import android.content.pm.ActivityInfo
+import androidx.activity.compose.BackHandler
 import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
@@ -121,6 +122,11 @@ fun VideoPlayerControllerUI(
             )
         }
     }
+    if (isFullscreen) {
+        BackHandler {
+            switchToEmbeddedView()
+        }
+    }
 }
 
 ///////////////////////////////////////////////////////////////////
@@ -350,7 +356,7 @@ private fun BottomUI(
         Text("00:06:45")
         Slider(value = 0.4F, onValueChange = {}, modifier = Modifier.weight(1F))
         Text("00:09:40")
-        IconButton(onClick = if(isFullscreen) switchToEmbeddedView else switchToFullscreen) {
+        IconButton(onClick = if (isFullscreen) switchToEmbeddedView else switchToFullscreen) {
             Icon(
                 imageVector = if (isFullscreen) Icons.Filled.FullscreenExit
                 else Icons.Filled.Fullscreen,

app/src/main/java/net/newpipe/newplayer/ui/utils.kt

@@ -26,6 +26,7 @@ import android.content.ContextWrapper
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.DisposableEffect
 import androidx.compose.ui.platform.LocalContext
+import androidx.core.view.WindowCompat
 
 @Composable
 fun LockScreenOrientation(orientation: Int) {

app/src/main/res/layout-land/player_framgent.xml

@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- NewPlayer
+
+    @author Christian Schabesberger
+
+    Copyright (C) NewPipe e.V. 2024 <code(at)newpipe-ev.de>
+
+    NewPlayer is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    NewPlayer is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with NewPlayer.  If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+
+    <FrameLayout
+        android:id="@+id/frame_layout"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <androidx.compose.ui.platform.ComposeView
+            android:id="@+id/player_copose_view"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent" />
+
+    </FrameLayout>
+
+</androidx.constraintlayout.widget.ConstraintLayout>