简化代码，解决程序图标问题

Signed-off-by: yqsphp <yqsphp@qq.com>

README.md

@@ -1,5 +1,8 @@
 # 媒体投屏器 (Media Caster)
-
+## 程序由来
+ 本来想着在网上找个能在window客户运行的媒体投屏软件来把电脑上的媒体投屏到投影仪上，
+ 但找了多款都是必须要双端安装，还需要验证码等，点对点投屏，无语。安卓端却有一堆投屏软件 :sweat_smile: 
+ 然后自己通过AI辅助摸索着写了这个程序。自己也足够用了！
 <p align="center">
   <img src="%E9%A2%84%E8%A7%88%E5%9B%BE.png" />
   <br>

core/dlna_controller.py

@@ -132,12 +132,13 @@ class DLNAController:
 
     # ================== AVTransport 服务方法 ==================
 
-    def set_av_transport_uri(self, media_url, metadata=""):
+    def set_av_transport_uri(self, media_url, title = "", metadata=""):
         """
         设置播放URI
 
         Args:
             media_url: 媒体文件的URL
+            title: 媒体文件名称
             metadata: 媒体元数据（可选）
 
         Returns:
@@ -146,16 +147,27 @@ class DLNAController:
         if not self.av_transport_url:
             return False
 
+        if title and not metadata:
+            # 转义title中的XML特殊字符
+            title_escaped = title.replace('&', '&amp;').replace('<', '&lt;').replace('>', '&gt;').replace('"', '&quot;')
+            # 构建简单的DIDL-Lite元数据
+            metadata = f"""<DIDL-Lite xmlns="urn:schemas-upnp-org:metadata-1-0/DIDL-Lite/" 
+                xmlns:dc="http://purl.org/dc/elements/1.1/">
+                <item id="1" parentID="0" restricted="1">
+                    <dc:title>{title_escaped}</dc:title>
+                </item>
+            </DIDL-Lite>"""
+
         # 转义XML特殊字符
         media_url_escaped = media_url.replace('&', '&amp;').replace('<', '&lt;').replace('>', '&gt;')
         media_url_escaped = urllib.parse.quote(media_url_escaped,safe=':/')
         metadata_escaped = metadata.replace('&', '&amp;').replace('<', '&lt;').replace('>', '&gt;')
 
         soap_body = f"""<u:SetAVTransportURI xmlns:u="urn:schemas-upnp-org:service:AVTransport:1">
-    <InstanceID>0</InstanceID>
-    <CurrentURI>{media_url_escaped}</CurrentURI>
-    <CurrentURIMetaData>{metadata_escaped}</CurrentURIMetaData>
-</u:SetAVTransportURI>"""
+            <InstanceID>0</InstanceID>
+            <CurrentURI>{media_url_escaped}</CurrentURI>
+            <CurrentURIMetaData>{metadata_escaped}</CurrentURIMetaData>
+        </u:SetAVTransportURI>"""
 
         action = "urn:schemas-upnp-org:service:AVTransport:1#SetAVTransportURI"
         success, response = self._send_soap_request(self.av_transport_url, action, soap_body)
@@ -178,9 +190,9 @@ class DLNAController:
             return False
 
         soap_body = f"""<u:Play xmlns:u="urn:schemas-upnp-org:service:AVTransport:1">
-    <InstanceID>0</InstanceID>
-    <Speed>{speed}</Speed>
-</u:Play>"""
+            <InstanceID>0</InstanceID>
+            <Speed>{speed}</Speed>
+        </u:Play>"""
 
         action = "urn:schemas-upnp-org:service:AVTransport:1#Play"
         success, response = self._send_soap_request(self.av_transport_url, action, soap_body)
@@ -198,8 +210,8 @@ class DLNAController:
             return False
 
         soap_body = """<u:Pause xmlns:u="urn:schemas-upnp-org:service:AVTransport:1">
-    <InstanceID>0</InstanceID>
-</u:Pause>"""
+            <InstanceID>0</InstanceID>
+        </u:Pause>"""
 
         action = "urn:schemas-upnp-org:service:AVTransport:1#Pause"
         success, response = self._send_soap_request(self.av_transport_url, action, soap_body)
@@ -217,8 +229,8 @@ class DLNAController:
             return False
 
         soap_body = """<u:Stop xmlns:u="urn:schemas-upnp-org:service:AVTransport:1">
-    <InstanceID>0</InstanceID>
-</u:Stop>"""
+            <InstanceID>0</InstanceID>
+        </u:Stop>"""
 
         action = "urn:schemas-upnp-org:service:AVTransport:1#Stop"
         success, response = self._send_soap_request(self.av_transport_url, action, soap_body)
@@ -242,10 +254,10 @@ class DLNAController:
         target_escaped = target.replace('&', '&amp;').replace('<', '&lt;').replace('>', '&gt;')
 
         soap_body = f"""<u:Seek xmlns:u="urn:schemas-upnp-org:service:AVTransport:1">
-    <InstanceID>0</InstanceID>
-    <Unit>{unit}</Unit>
-    <Target>{target_escaped}</Target>
-</u:Seek>"""
+            <InstanceID>0</InstanceID>
+            <Unit>{unit}</Unit>
+            <Target>{target_escaped}</Target>
+        </u:Seek>"""
 
         action = "urn:schemas-upnp-org:service:AVTransport:1#Seek"
         success, response = self._send_soap_request(self.av_transport_url, action, soap_body)
@@ -267,8 +279,8 @@ class DLNAController:
             return None
 
         soap_body = """<u:GetTransportInfo xmlns:u="urn:schemas-upnp-org:service:AVTransport:1">
-    <InstanceID>0</InstanceID>
-</u:GetTransportInfo>"""
+            <InstanceID>0</InstanceID>
+        </u:GetTransportInfo>"""
 
         action = "urn:schemas-upnp-org:service:AVTransport:1#GetTransportInfo"
         success, response = self._send_soap_request(self.av_transport_url, action, soap_body)
@@ -321,8 +333,8 @@ class DLNAController:
             return None
 
         soap_body = """<u:GetPositionInfo xmlns:u="urn:schemas-upnp-org:service:AVTransport:1">
-    <InstanceID>0</InstanceID>
-</u:GetPositionInfo>"""
+            <InstanceID>0</InstanceID>
+        </u:GetPositionInfo>"""
 
         action = "urn:schemas-upnp-org:service:AVTransport:1#GetPositionInfo"
         success, response = self._send_soap_request(self.av_transport_url, action, soap_body)
@@ -375,10 +387,10 @@ class DLNAController:
         volume = max(0, min(100, int(volume)))
 
         soap_body = f"""<u:SetVolume xmlns:u="urn:schemas-upnp-org:service:RenderingControl:1">
-    <InstanceID>0</InstanceID>
-    <Channel>{channel}</Channel>
-    <DesiredVolume>{volume}</DesiredVolume>
-</u:SetVolume>"""
+            <InstanceID>0</InstanceID>
+            <Channel>{channel}</Channel>
+            <DesiredVolume>{volume}</DesiredVolume>
+        </u:SetVolume>"""
 
         action = "urn:schemas-upnp-org:service:RenderingControl:1#SetVolume"
         success, response = self._send_soap_request(self.rendering_control_url, action, soap_body)
@@ -399,9 +411,9 @@ class DLNAController:
             return None
 
         soap_body = f"""<u:GetVolume xmlns:u="urn:schemas-upnp-org:service:RenderingControl:1">
-    <InstanceID>0</InstanceID>
-    <Channel>{channel}</Channel>
-</u:GetVolume>"""
+            <InstanceID>0</InstanceID>
+            <Channel>{channel}</Channel>
+        </u:GetVolume>"""
 
         action = "urn:schemas-upnp-org:service:RenderingControl:1#GetVolume"
         success, response = self._send_soap_request(self.rendering_control_url, action, soap_body)
@@ -444,10 +456,10 @@ class DLNAController:
         desired_mute = "1" if mute else "0"
 
         soap_body = f"""<u:SetMute xmlns:u="urn:schemas-upnp-org:service:RenderingControl:1">
-    <InstanceID>0</InstanceID>
-    <Channel>{channel}</Channel>
-    <DesiredMute>{desired_mute}</DesiredMute>
-</u:SetMute>"""
+            <InstanceID>0</InstanceID>
+            <Channel>{channel}</Channel>
+            <DesiredMute>{desired_mute}</DesiredMute>
+        </u:SetMute>"""
 
         action = "urn:schemas-upnp-org:service:RenderingControl:1#SetMute"
         success, response = self._send_soap_request(self.rendering_control_url, action, soap_body)
@@ -468,9 +480,9 @@ class DLNAController:
             return None
 
         soap_body = f"""<u:GetMute xmlns:u="urn:schemas-upnp-org:service:RenderingControl:1">
-    <InstanceID>0</InstanceID>
-    <Channel>{channel}</Channel>
-</u:GetMute>"""
+            <InstanceID>0</InstanceID>
+            <Channel>{channel}</Channel>
+        </u:GetMute>"""
 
         action = "urn:schemas-upnp-org:service:RenderingControl:1#GetMute"
         success, response = self._send_soap_request(self.rendering_control_url, action, soap_body)
@@ -512,7 +524,7 @@ class DLNAController:
             return None
 
         soap_body = """<u:GetProtocolInfo xmlns:u="urn:schemas-upnp-org:service:ConnectionManager:1">
-</u:GetProtocolInfo>"""
+        </u:GetProtocolInfo>"""
 
         action = "urn:schemas-upnp-org:service:ConnectionManager:1#GetProtocolInfo"
         success, response = self._send_soap_request(self.connection_manager_url, action, soap_body)
@@ -540,119 +552,3 @@ class DLNAController:
         except ET.ParseError:
             return None
 
-    # ================== 高级方法 ==================
-
-    def play_media(self, media_url, metadata="", wait=1):
-        """
-        播放媒体文件（组合操作）
-
-        Args:
-            media_url: 媒体文件URL
-            metadata: 媒体元数据
-            wait: 设置URI后的等待时间（秒）
-
-        Returns:
-            bool: 是否成功
-        """
-        import time
-
-        if self.set_av_transport_uri(media_url, metadata):
-            time.sleep(wait)
-            return self.play()
-        return False
-
-    def get_device_status(self):
-        """
-        获取设备完整状态
-
-        Returns:
-            dict: 设备状态信息
-        """
-        status = {
-            'device_info': {
-                'friendly_name': self.device_info.get('friendly_name', '未知'),
-                'ip': self.device_info.get('ip', '未知'),
-                'location': self.device_info.get('location', '未知')
-            },
-            'transport_info': self.get_transport_info(),
-            'position_info': self.get_position_info(),
-            'volume': self.get_volume(),
-            'mute': self.get_mute(),
-            'protocol_info': self.get_protocol_info(),
-            'services': {
-                'av_transport': self.av_transport_url is not None,
-                'rendering_control': self.rendering_control_url is not None,
-                'connection_manager': self.connection_manager_url is not None
-            }
-        }
-
-        return status
-
-    def get_supported_formats(self):
-        """
-        获取设备支持的媒体格式
-
-        Returns:
-            list: 支持的格式列表
-        """
-        protocol_info = self.get_protocol_info()
-        if not protocol_info or 'sink' not in protocol_info:
-            return []
-
-        # 解析sink字段，提取支持的格式
-        sink_info = protocol_info['sink']
-        formats = []
-
-        # DLNA格式通常是逗号分隔的
-        for fmt in sink_info.split(','):
-            fmt = fmt.strip()
-            if fmt:
-                formats.append(fmt)
-
-        return formats
-
-    def can_play_format(self, media_url):
-        """
-        检查设备是否可能支持指定格式
-
-        Args:
-            media_url: 媒体URL
-
-        Returns:
-            bool: 是否可能支持
-        """
-        import mimetypes
-
-        # 获取文件扩展名
-        if '.' in media_url:
-            ext = media_url.split('.')[-1].lower()
-
-            # 常见扩展名到MIME类型的映射
-            ext_to_mime = {
-                'mp4': 'video/mp4',
-                'mp3': 'audio/mp3',
-                'm4a': 'audio/mp4',
-                'wav': 'audio/wav',
-                'flac': 'audio/flac',
-                'mkv': 'video/x-matroska',
-                'avi': 'video/x-msvideo',
-                'mov': 'video/quicktime',
-                'wmv': 'video/x-ms-wmv',
-                'flv': 'video/x-flv',
-                'webm': 'video/webm',
-                'ogg': 'audio/ogg',
-                'oga': 'audio/ogg',
-                'ogv': 'video/ogg',
-                'm3u8': 'application/x-mpegURL',
-                'mpd': 'application/dash+xml'
-            }
-
-            mime_type = ext_to_mime.get(ext)
-            if mime_type:
-                # 检查设备是否支持该MIME类型
-                supported_formats = self.get_supported_formats()
-                for fmt in supported_formats:
-                    if mime_type in fmt:
-                        return True
-
-        return False

resources.qrc

@@ -0,0 +1,8 @@
+<!DOCTYPE RCC>
+<RCC version="1.0">
+<qresource>
+    <file>icons/icon.ico</file>
+    <file>icons/icon.png</file>
+    <file>icons/icon.icns</file>
+</qresource>
+</RCC>

ui/main_window.py

@@ -2,18 +2,56 @@ import sys
 import os
 import threading
 import socket
-from datetime import datetime
+import resources
 
 from PyQt5.QtCore import Qt
 from PyQt5.QtGui import QIcon
 from PyQt5.QtWidgets import QMainWindow, QWidget, QVBoxLayout, QHBoxLayout, QLabel, QGroupBox, QFrame, QPushButton, \
-    QListWidget, QSlider, QTextEdit, QFileDialog, QMessageBox, QListWidgetItem
-
+    QListWidget, QSlider, QFileDialog, QMessageBox, QListWidgetItem, QApplication
 from core.device_discovery import DeviceDiscovery
 from core.dlna_controller import DLNAController
 from core.http_file_server import HTTPFileServer
 from core.logger import AppLogger
 
+class IconManager:
+    """图标管理器，处理Qt资源系统的图标加载"""
+
+    @staticmethod
+    def get_icon(icon_name="icon"):
+        """
+        从Qt资源系统加载图标
+
+        支持格式优先级：
+        1. 根据平台自动选择格式
+        2. 使用资源别名
+        3. 使用完整路径
+        """
+        # 根据平台选择图标格式
+        platform = sys.platform
+        if platform == "win32":
+            extensions = [".ico", ".png"]
+        elif platform == "darwin":  # macOS
+            extensions = [".icns", ".png"]
+        else:  # Linux和其他
+            extensions = [".png", ".svg"]
+
+        # 尝试不同的路径格式
+        icon = QIcon()
+
+        for ext in extensions:
+            resource_path = f":/icons/{icon_name}{ext}"
+            icon = QIcon(resource_path)
+            if not icon.isNull():
+                print(f"✓ 从资源加载: {resource_path}")
+                return icon
+
+        # 如果都没找到，创建空图标
+        if icon.isNull():
+            print("⚠ 无法从资源加载图标，使用默认图标")
+            # 可以使用Qt内置图标作为备选
+            icon = QIcon.fromTheme("application-x-executable")
+
+        return icon
 
 class MainWindow(QMainWindow):
     """智能媒体投屏器主窗口"""
@@ -34,25 +72,20 @@ class MainWindow(QMainWindow):
 
     def init_ui(self):
         """初始化UI界面"""
-        version = "v1.0.2"
+        version = "v1.0.3"
         app_name = "多媒体投屏 by yqsphp"
-        icon = "icon.ico"
 
         self.setWindowTitle(app_name)
         self.setGeometry(100, 100, 700, 500)
 
-        # 获取图标路径（支持打包和开发环境）
-        if getattr(sys, 'frozen', False):
-            # 打包后的exe环境
-            base_path = sys._MEIPASS
-        else:
-            # 开发环境
-            base_path = os.path.abspath(".")
+        # 1. 加载主图标
+        icon = IconManager.get_icon()
 
-        icon_path = os.path.join(base_path, icon)
+        # 2. 设置窗口图标（标题栏）
+        self.setWindowIcon(icon)
 
-        # 设置应用程序图标（影响任务栏）
-        self.setWindowIcon(QIcon(icon_path))
+        # 3. 设置应用程序图标（任务栏）
+        QApplication.instance().setWindowIcon(icon)
 
         # Windows专用：设置AppUserModelID（非常重要！）
         if sys.platform == "win32":
@@ -67,33 +100,23 @@ class MainWindow(QMainWindow):
         # 创建中央部件
         central_widget = QWidget()
         self.setCentralWidget(central_widget)
-
         # 主布局
         main_layout = QVBoxLayout(central_widget)
         main_layout.setSpacing(10)
         main_layout.setContentsMargins(10, 10, 10, 10)
-
         # 水平布局用于左右面板
         horizontal_layout = QHBoxLayout()
         horizontal_layout.setSpacing(10)
-
         # 左侧控制面板
-        left_panel = self.create_left_panel()
+        left_panel = self.create_panel()
         horizontal_layout.addWidget(left_panel, 1)
 
-        # 右侧信息面板
-        # right_panel = self.create_right_panel()
-        # horizontal_layout.addWidget(right_panel, 1)
-
         # 将水平布局添加到垂直布局中
         main_layout.addLayout(horizontal_layout)
-
         # 状态栏
         self.statusBar().showMessage("准备就绪")
-
         # 添加弹性空间
         main_layout.addStretch()
-
         # 底部版权信息
         copyright_label = QLabel(f"© {app_name} {version}")
         copyright_label.setAlignment(Qt.AlignCenter)
@@ -105,7 +128,6 @@ class MainWindow(QMainWindow):
                         margin-top: 10px;
                     """)
         main_layout.addWidget(copyright_label)
-
         # 设置扁平化样式
         self.setStyleSheet("""
             /* 主窗口 */
@@ -225,7 +247,7 @@ class MainWindow(QMainWindow):
             }
         """)
 
-    def create_left_panel(self):
+    def create_panel(self):
         """创建左侧控制面板（文件和设备控制合并）"""
         panel = QWidget()
         layout = QVBoxLayout(panel)
@@ -306,7 +328,7 @@ class MainWindow(QMainWindow):
 
         # 设备列表
         self.device_list = QListWidget()
-        self.device_list.itemClicked.connect(self.select_device_from_list)
+        self.device_list.itemClicked.connect(self.select_device)
         self.device_list.setMinimumHeight(100)
         device_layout.addWidget(self.device_list)
 
@@ -376,84 +398,6 @@ class MainWindow(QMainWindow):
         layout.addStretch()
         return panel
 
-    def create_right_panel(self):
-        """创建右侧信息面板"""
-        panel = QWidget()
-        layout = QVBoxLayout(panel)
-        layout.setSpacing(10)
-
-
-        # ==================== 系统信息区域 ====================
-        system_group = QGroupBox("系统信息")
-        system_layout = QVBoxLayout()
-        system_layout.setSpacing(8)
-
-        # 获取本机IP
-        try:
-            s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
-            s.connect(("8.8.8.8", 80))
-            local_ip = s.getsockname()[0]
-            s.close()
-        except:
-            local_ip = "获取失败"
-
-        # 服务器状态
-        server_frame = QFrame()
-        server_layout = QHBoxLayout(server_frame)
-
-        server_layout.addWidget(QLabel("服务地址:"))
-        self.ip_label = QLabel(f"{local_ip}:{self.http_port}")
-        server_layout.addWidget(self.ip_label, 1)
-
-        system_layout.addWidget(server_frame)
-        # 文件服务状态
-        service_frame = QFrame()
-        service_layout = QHBoxLayout(service_frame)
-
-        service_layout.addWidget(QLabel("文件服务:"))
-        self.file_service_label = QLabel("就绪")
-        self.file_service_label.setStyleSheet("color: #28a745;")
-        service_layout.addWidget(self.file_service_label, 1)
-
-        system_layout.addWidget(service_frame)
-
-        system_group.setLayout(system_layout)
-
-        layout.addWidget(system_group)
-        # ==================== 操作日志区域 ====================
-        log_group = QGroupBox("操作日志")
-        log_layout = QVBoxLayout()
-        log_layout.setSpacing(2)
-
-        self.log_text = QTextEdit()
-        self.log_text.setReadOnly(True)
-        self.log_text.setMinimumHeight(250)
-
-        # 添加初始日志
-        self.log_message("系统", "智能媒体投屏器已启动")
-        self.log_message("系统", f"本地IP地址: {local_ip}")
-
-        log_layout.addWidget(self.log_text, 1)
-
-        # 日志控制按钮
-        log_btn_layout = QHBoxLayout()
-        log_btn_layout.setSpacing(8)
-
-        clear_log_btn = QPushButton("清空日志")
-        clear_log_btn.clicked.connect(self.log_text.clear)
-
-        log_btn_layout.addWidget(clear_log_btn)
-        log_btn_layout.addStretch()
-
-        log_layout.addLayout(log_btn_layout)
-
-        log_group.setLayout(log_layout)
-        layout.addWidget(log_group, 1)  # 日志区域占据更多空间
-
-        layout.addStretch()
-
-        return panel
-
     def init_connections(self):
         """初始化信号连接"""
         # 设备发现
@@ -500,15 +444,13 @@ class MainWindow(QMainWindow):
                 self.device_discovery = DeviceDiscovery()
             # 获取刷新后设备信息
             new_device = self.device_discovery.discover_media_renderers()
-            self.update_device_list(new_device, self.selected_device)
-            # 搜索完成后启用按钮
-            self.enable_refresh_button()
+            self.update_device(new_device, self.selected_device)
 
         # 确保在UI线程中更新
         thread = threading.Thread(target=do_quick_discovery, daemon=True)
         thread.start()
 
-    def update_device_list(self, new_devices, current_selected_device=None):
+    def update_device(self, new_devices, current_selected_device=None):
         """
         更新设备列表显示，保留选中状态（使用UDN作为唯一标识）
         Args:
@@ -600,8 +542,6 @@ class MainWindow(QMainWindow):
                 # 检查是否是之前选中的设备
                 if current_selected_udn and device.get('udn') == current_selected_udn:
                     current_selected_item = found_item
-                elif current_selected_device and device.get('ip') == current_selected_device.get('ip'):
-                    current_selected_item = found_item
             else:
                 # 设备不存在，添加新项目
                 item = QListWidgetItem(item_text)
@@ -611,8 +551,6 @@ class MainWindow(QMainWindow):
                 # 检查是否是之前选中的设备
                 if current_selected_udn and device.get('udn') == current_selected_udn:
                     current_selected_item = item
-                elif current_selected_device and device.get('ip') == current_selected_device.get('ip'):
-                    current_selected_item = item
 
         # 恢复选中状态
         if current_selected_item:
@@ -636,15 +574,13 @@ class MainWindow(QMainWindow):
 
             # 如果有选中的设备，启用控制按钮
             if self.selected_device:
-                self.enable_control_buttons(True)
                 device_name = self.selected_device.get('friendly_name', '未知设备')
                 self.log_message("设备选择", f"当前选中: {device_name}")
         else:
             self.log_message("设备发现", "未发现任何投屏设备", "warning")
             self.selected_device = None
-            self.enable_control_buttons(False)
 
-    def select_device_from_list(self, item):
+    def select_device(self, item):
         """从列表中选择设备"""
         device = item.data(Qt.UserRole)
         if device:
@@ -707,7 +643,7 @@ class MainWindow(QMainWindow):
                 self.log_message("设置播放地址", file_url)
 
                 # 设置播放URI并开始播放
-                if self.dlna_controller.set_av_transport_uri(file_url):
+                if self.dlna_controller.set_av_transport_uri(file_url, file_name):
                     self.dlna_controller.play()
                     self.start_btn.setEnabled(False)
                     self.pause_btn.setEnabled(True)
@@ -740,7 +676,7 @@ class MainWindow(QMainWindow):
                     self.log_message("设置服务路径", "成功" if dir_bool else "失败")
                     file_url = f"http://{ip_text}/{file_name}"
 
-                    if self.dlna_controller.set_av_transport_uri(file_url):
+                    if self.dlna_controller.set_av_transport_uri(file_url, file_name):
                         self.dlna_controller.play()
                         self.start_btn.setEnabled(False)
                         self.pause_btn.setEnabled(True)
@@ -758,27 +694,27 @@ class MainWindow(QMainWindow):
     def pause_casting(self):
         """暂停投屏"""
         if self.dlna_controller:
-            if self.dlna_controller.pause():
-                self.is_paused = True  # 标记为暂停状态
+            self.dlna_controller.pause()
+            self.is_paused = True  # 标记为暂停状态
 
-                self.start_btn.setText("继续播放")
-                self.start_btn.setEnabled(True)
-                self.pause_btn.setEnabled(False)
+            self.start_btn.setText("继续播放")
+            self.start_btn.setEnabled(True)
+            self.pause_btn.setEnabled(False)
 
-                self.log_message("投屏", "已暂停播放")
+            self.log_message("投屏", "已暂停播放")
 
     def stop_casting(self):
         """停止投屏"""
         if self.dlna_controller:
-            if self.dlna_controller.stop():
-                self.is_paused = False  # 重置暂停状态
+            self.dlna_controller.stop()
+            self.is_paused = False  # 重置暂停状态
 
-                self.start_btn.setText("开始投屏")
-                self.start_btn.setEnabled(True)
-                self.pause_btn.setEnabled(False)
-                self.stop_btn.setEnabled(False)
+            self.start_btn.setText("开始投屏")
+            self.start_btn.setEnabled(True)
+            self.pause_btn.setEnabled(False)
+            self.stop_btn.setEnabled(False)
 
-                self.log_message("投屏", "已停止播放")
+            self.log_message("投屏", "已停止播放")
 
     def volume_changed(self, value):
         """音量改变"""