[SOLVED] Resizing my Flutter Desktop app on Windows

Resizing my Flutter Desktop app on Windows

I am building a flutter desktop app for MacOS & Windows. I am using the windows_manager package. I am not able to resize or maximize my app on Windows whereas on MacOS the same code is working as expected. I have given a minimum and maximum window size as well.

What can be the reason behind it? Can someone help me out?

Code:

Future<void> _setupDesktop() async {

  const minimumWindowSize = Size(1100, 800);
  await windowManager.ensureInitialized();

  WindowManager.instance.setMinimumSize(minimumWindowSize);
  WindowManager.instance
      .setMaximumSize(const Size(double.infinity, double.infinity));
  WindowOptions windowOptions = const WindowOptions(
    size: minimumWindowSize,
    center: true,
  );
  windowManager.waitUntilReadyToShow(windowOptions, () async {
    await windowManager.show();
    await windowManager.focus();
  });
}

Solution

To fix this issue, I don't have to set the maximum size of the window as double.infinity. I removed this line

WindowManager.instance.setMaximumSize(const Size(double.infinity, double.infinity));

and it seems to work fine.

Reason (not sure, but this might be): Using double.infinity for setMaximumSize creates an infinite size limit, which can cause issues on Windows by making the window non-resizable. Windows may interpret this size as the window being at its maximum, preventing any resizing. On macOS, the system may handle it more gracefully, leading to different behaviors across platforms.