python使用tkinter添加下载进度UI

1. 添加进度组件

   def download():          
               # 创建下载进度框
               progress_window = tk.Toplevel()
               progress_window.title("下载进度")
               progress_label = tk.Label(progress_window, text="正在下载视频文件...")
               progress_label.pack(pady=10)
               progress_bar = ttk.Progressbar(progress_window, orient="horizontal", length=300, mode="determinate")
               progress_bar.pack(pady=10)
   
               # 获取窗口宽高并居中显示
               progress_window.update_idletasks()
               window_width = progress_window.winfo_width()
               window_height = progress_window.winfo_height()
               screen_width = progress_window.winfo_screenwidth()
               screen_height = progress_window.winfo_screenheight()
               x = (screen_width - window_width) // 2
               y = (screen_height - window_height) // 2
               progress_window.geometry(f"{window_width}x{window_height}+{x}+{y}")

2. 创建进度更新方法

   def update_progress(progress):
                   progress_bar['value'] = progress
                   progress_window.update_idletasks()

3. 调用下载方法，传入进度更新方法

   ls_setoption.get_dump_video(video_dir, progress_callback=update_progress)
   
   progress_window.destroy()

4. 使用子线程调用下载方法，注意用子线程，否则下载过程UI会卡死，进度不更新

       download_thread = threading.Thread(target=download)
       download_thread.start()