Support "setFullScreen()" and "maximizeWindow()" #32

Activity

1. isinvon commented on Oct 30, 2024

   

   isinvon

   on Oct 30, 2024

   Author

   More actions

   I wrote an "SetFullScreenUtil" that makes the app window full screen covering the screen.

   depandency

    <dependency>
               <groupId>net.java.dev.jna</groupId>
               <artifactId>jna</artifactId>
               <version>5.15.0</version> 
   </dependency>
   

   SetFullScreenUtil

   package com.sinvon.api.utils;
   
   import com.sun.jna.platform.win32.WinDef;
   import com.sun.jna.platform.win32.User32;
   
   public class SetFullScreenUtil {
   
       public static void setFullScreen(String windowTitle) {
           if (windowTitle == null || windowTitle.isEmpty()) {
               System.out.println("The provided window title is null or empty; unable to set the window to full screen.");
               return;
           }
   
           User32 user32 = User32.INSTANCE;
   
           // Find window handle
           WinDef.HWND hWnd = user32.FindWindow(null, windowTitle);
   
           if (hWnd == null) {
               System.out.println("Failed to retrieve the window handle; unable to set the window to full screen.");
               return;
           }
   
           // Get the screen dimensions
           WinDef.RECT rect = new WinDef.RECT();
           user32.GetWindowRect(hWnd, rect);
   
           // Get screen width and height
           int screenWidth = User32.INSTANCE.GetSystemMetrics(User32.SM_CXSCREEN);
           int screenHeight = User32.INSTANCE.GetSystemMetrics(User32.SM_CYSCREEN);
   
           // Set the window to cover the entire screen
           user32.SetWindowLong(hWnd, User32.GWL_STYLE, user32.GetWindowLong(hWnd, User32.GWL_STYLE) & ~User32.WS_OVERLAPPEDWINDOW);
           user32.SetWindowPos(hWnd, null, 0, 0, screenWidth, screenHeight, User32.SWP_NOZORDER | User32.SWP_SHOWWINDOW);
   
           System.out.println("The window has been set to full screen.");
       }
   
   

   use the utils.

   public static void main(String[] args) {
          SpringApplication.run(ApiApplication.class, args);
          Webview wv = new Webview(false);
          String windowTitle = "gale-app";
          wv.setTitle(windowTitle);
          // Full screen coverage
          SetFullScreenUtil.setFullScreen(windowTitle);
          wv.loadURL("https://promisesaplus.com/");
          wv.run();
          wv.close();
      }
   

   the results show

   the.result.of.full.screen.show.mp4

   There are some problem.The transition animations of "webview_java" are not very smooth. I would prefer it to directly display the size I want, such as full screen or a small-sized window, instead of having a process of the window size changing. This might feel rather jarring.
2. isinvon commented on Oct 30, 2024

   

   isinvon

   on Oct 30, 2024

   Author

   More actions

   I wrote a "maximizeWindow()" that maximizes the app window, but for now I've only tested it on the window, and it works successfully

   depandency

   
   <dependency>
           <groupId>net.java.dev.jna</groupId>
           <artifactId>jna</artifactId>
           <version>5.15.0</version>
       </dependency>
       <dependency>
           <groupId>net.java.dev.jna</groupId>
           <artifactId>jna-platform</artifactId>
           <version>5.15.0</version>
       </dependency>
   

   WindowUtils

   
   package com.sinvon.api.utils;
   
   import com.sun.jna.Library;
   import com.sun.jna.Native;
   import com.sun.jna.platform.win32.User32;
   import com.sun.jna.platform.win32.WinDef;
   import com.sun.jna.platform.win32.WinDef.HWND;
   
   public class WindowUtils {
   
       public interface User32Library extends Library {
           User32Library INSTANCE = Native.load("user32", User32Library.class);
   
           void ShowWindow(HWND hWnd, int nCmdShow);
       }
   
       public static void maximizeWindow(String windowTitle) {
           WinDef.HWND hwnd = User32.INSTANCE.FindWindow(null, windowTitle); // Retrieve handle through window title
           if (hwnd != null) {
               // 调用最大化方法
               User32Library.INSTANCE.ShowWindow(hwnd, 3); // 3 = SW_MAXIMIZE
           } else {
               System.out.println("Window not found.");
           }
       }
   }
   
   

   main.java

    public static void main(String[] args) {
           SpringApplication.run(ApiApplication.class, args);
           Webview wv = new Webview(false);
           String windowTitle = "gale-app";
           wv.setTitle(windowTitle);
           // maximize the window
           WindowUtils.maximizeWindow(windowTitle);
           wv.loadURL("https://promisesaplus.com/");
           wv.run();
           wv.close();
       }
   

   Look at the result

   Maximize.the.window.mp4
3. isinvon

   changed the title [-]Hope suport "setFullScreen()" and "maximizeWindow()"[/-] [+]Support "setFullScreen()" and "maximizeWindow()"[/+] on Nov 3, 2024
4. NotJustAnna commented on Apr 8, 2025

   

   NotJustAnna

   on Apr 8, 2025

   More actions

   Code works! Both implemented in NotJustAnna/webview_java@f7e7114

   🎉React with 🎉1Reacted by sinvon
5. isinvon commented on Apr 16, 2025

   

   isinvon

   on Apr 16, 2025

   Author

   More actions

   @NotJustAnna
   ​Thank you so much for providing the code!​​ 🙌
   This issue has been open for over ​​six months, and your code contribution is incredibly helpful. I really appreciate your time and expertise in tackling this problem. It means a lot to me and the project!

   ❤️React with ❤️1Reacted by Anna Silva