iOS background image size inconsistency problem

During the development of iOS, we may sometimes use Uicolor * color= [Uicolor colorwithpatternimage:image];

Sometimes the background image appears incomplete or the background image is displayed as multiple images instead of a whole picture.

At this point we need to enlarge or reduce the size of the image to the size of the view to achieve the full background picture.

Here's how:

UIImage *matchimg = [UIImage imagenamed:@ "You need to be a picture of the background"];    UIImage *backimage;    CGFloat width = self.view.frame.size.width;//Self.view Indicates the size of your view cgfloat height = self.view.frame.size.height;    Uigraphicsbeginimagecontext (Cgsizemake (width, height));    [Matchimg drawinrect:cgrectmake (0, 0, width, height)];//adjustment backimage = Uigraphicsgetimagefromcurrentimagecontext ();    Uigraphicsendimagecontext (); Self.view.backgroundColor = [Uicolor colorwithpatternimage:backimage];//This enables full screen display of the background picture

iOS background image size inconsistency problem