You should avoid creating UIImage objects that are greater than 1024 x
1024 in size. Besides the large amount of memory such an image would
consume,you may run into problems when using the image as a texture
in OpenGL ES or when drawing the image to a view or layer. This size
restriction does not apply if you are performing code-based
manipulations,such as resizing an image larger than 1024 x 1024
pixels by drawing it to a bitmap-backed graphics context. In fact,you
may need to resize an image in this manner (or break it into several
smaller images) in order to draw it to one of your views.

我认为这意味着如果我们使用非方形图像,我们应该将它们分解成更小的图像？是否有任何具体的文件或解释,或者有任何经验提示吗？

谢谢阅读.