Creating a window with platform specific or explicit size

[dhardy]

The current winit API gives two options for the size of a created window:

• use a platform-specific default size (from the code, 800×600 on Linux & Mac, 1024×768 on Windows and web, screen size on mobile platforms)
• specify the size and/or bounds (currently ignored on Android but apparently used on iOS)

What I want to do is:

1. start with a default size (platform-specific or hard-coded 800×600 is fine)
2. if (and only if) the following hold, adjust this default size
   • it is sensible to resize windows (i.e. not mobile platforms)
   • and the UI in question has soft bounds on size

I don't believe this is possible with the current UI — at least, not on iOS, where it would not normally make sense to reduce a window size simply because less space is needed.

Possibly related: #33

[Osspial]

Could you use #[cfg(target_os = "foo")] to conditionally specify window size?