I have 27 apps in the store and did not want to create and manage new backgrounds for each of them. And I suspect that there will be more sizes in the future. So what I did was create an 1800×1800 image for each app. They are mostly around 300-400KB. Then in viewWillAppear I call this method.
\n
\n- (void)pickBackgroundImage {\n\n UIInterfaceOrientation orientation = [[UIApplication sharedApplication] statusBarOrientation];\n CGFloat scale = [UIScreen mainScreen].scale;\n CGPoint midPoint = [Utilities findMidpoint:self.view];\n\n NSString *pictFile = [[NSBundle mainBundle] pathForResource:@"Background" ofType:@"png"];\n UIImage *imageToDisplay = [UIImage imageWithContentsOfFile:pictFile];\n imageToDisplay = [UIImage imageWithCGImage:imageToDisplay.CGImage scale:scale orientation:imageToDisplay.imageOrientation];\n\n CGRect pictFrame;\n if(orientation == UIInterfaceOrientationPortrait || orientation == UIInterfaceOrientationPortraitUpsideDown) {\n CGFloat imageWidth = (unsigned int)(.9f * self.view.frame.size.width);\n pictFrame = CGRectMake(midPoint.x - imageWidth\/2, midPoint.y - imageWidth\/2, imageWidth, imageWidth);\n pictFrame.origin.y = self.view.frame.origin.y + .3f * pictFrame.origin.y;\n } else {\n CGFloat imageWidth = (unsigned int)(self.view.frame.size.height - 20 - 44);\n pictFrame = CGRectMake(midPoint.x - imageWidth\/2, midPoint.y - imageWidth\/2, imageWidth, imageWidth);\n pictFrame.origin.y = 10;\n }\n self.BGView = [[UIImageView alloc] initWithImage:imageToDisplay];\n self.BGView.frame = pictFrame;\n self.BGView.contentMode = UIViewContentModeScaleAspectFit;\n\n [self.view insertSubview:self.BGView atIndex:0];\n}<\/code><\/pre>
\nThe arithmetic is a little tricky, but basically I figure out how big the screen is, then subtract the menubar and bottom bar. Then fill 90% of whats left with the image. I use the scale factor, CGFloat scale = [UIScreen mainScreen].scale;, to make the device think that the image was created just for it, e.g. @2x or @3x.<\/p>\nWorks in the simulator for all devices. I don\u2019t have a new phone so I haven\u2019t been able to test it on one yet.<\/p>\n","protected":false},"excerpt":{"rendered":"
I have 27 apps in the store and did not want to create and manage new backgrounds for each of them. And I suspect that there will be more sizes in the future. So what I did was create an 1800×1800 image for each app. They are mostly around 300-400KB. Then in viewWillAppear I call … Continue reading Background images for iOS<\/span><\/a><\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21],"tags":[],"class_list":["post-1959","post","type-post","status-publish","format-standard","hentry","category-ios"],"_links":{"self":[{"href":"https:\/\/www.wellgolly.com\/index.php?rest_route=\/wp\/v2\/posts\/1959","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wellgolly.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wellgolly.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wellgolly.com\/index.php?rest_route=\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wellgolly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1959"}],"version-history":[{"count":0,"href":"https:\/\/www.wellgolly.com\/index.php?rest_route=\/wp\/v2\/posts\/1959\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.wellgolly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1959"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wellgolly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1959"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wellgolly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1959"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}