opt live header

Signed-off-by: bggRGjQaUbCoE <githubaccount56556@proton.me>

lib/pages/live_room/widgets/header_control.dart

@@ -141,6 +141,7 @@ class _LiveHeaderControlState extends State<LiveHeaderControl>
                 onTap: () => plPlayerController.setAlwaysOnTop(!isAlwaysOnTop),
               );
             }),
+          if (isFullScreen || Utils.isDesktop)
             ComBtn(
               height: 30,
               tooltip: '发弹幕',
@@ -151,6 +152,27 @@ class _LiveHeaderControlState extends State<LiveHeaderControl>
               ),
               onTap: widget.onSendDanmaku,
             ),
+          if (Platform.isAndroid || (Utils.isDesktop && !isFullScreen))
+            ComBtn(
+              height: 30,
+              tooltip: '画中画',
+              onTap: () async {
+                if (Utils.isDesktop) {
+                  plPlayerController.toggleDesktopPip();
+                  return;
+                }
+                if (await Floating().isPipAvailable) {
+                  plPlayerController
+                    ..showControls.value = false
+                    ..enterPip();
+                }
+              },
+              icon: const Icon(
+                size: 18,
+                Icons.picture_in_picture_outlined,
+                color: Colors.white,
+              ),
+            ),
           Obx(
             () {
               final onlyPlayAudio = plPlayerController.onlyPlayAudio.value;
@@ -175,27 +197,26 @@ class _LiveHeaderControlState extends State<LiveHeaderControl>
               );
             },
           ),
-          if (Platform.isAndroid || (Utils.isDesktop && !isFullScreen))
+          Obx(() {
-            ComBtn(
+            final continuePlayInBackground =
+                plPlayerController.continuePlayInBackground.value;
+            return ComBtn(
               height: 30,
-              tooltip: '画中画',
+              tooltip: '${continuePlayInBackground ? '关闭' : ''}后台播放',
-              onTap: () async {
+              onTap: plPlayerController.setContinuePlayInBackground,
-                if (Utils.isDesktop) {
+              icon: continuePlayInBackground
-                  plPlayerController.toggleDesktopPip();
+                  ? const Icon(
-                  return;
-                }
-                if (await Floating().isPipAvailable) {
-                  plPlayerController
-                    ..showControls.value = false
-                    ..enterPip();
-                }
-              },
-              icon: const Icon(
                       size: 18,
-                Icons.picture_in_picture_outlined,
+                      Icons.play_circle,
+                      color: Colors.white,
+                    )
+                  : const Icon(
+                      size: 18,
+                      Icons.play_circle_outline,
                       color: Colors.white,
                     ),
-            ),
+            );
+          }),
           ComBtn(
             height: 30,
             tooltip: '定时关闭',

lib/pages/video/widgets/header_control.dart

@@ -2680,7 +2680,7 @@ class HeaderControlState extends State<HeaderControl>
                       : const SizedBox.shrink(),
                 ),
               ],
-              if (isFSOrPip || Utils.isDesktop) ...[
+              if (isFullScreen || Utils.isDesktop) ...[
                 SizedBox(
                   width: 42,
                   height: 34,