iphone canvas sizes

Hi, There is no problem in displaying the application on the iPhone 8, but the application appears to be incorrect on the iPhone x and above

Hi all, A long time ago I wrote an app, it takes some information and draws out a grid, originally the saved grid would be double the size, and this post (https://www.b4x.com/android/forum/threads/canvas-createbitmap-does-not-match-the-size-of-the-panel.48203/#post-299457) pointed to a fix...