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Fixed orientation issues in the iOS extended launch screen.

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slime73 committed Apr 12, 2015
1 parent fe6c797 commit a27fad1e24c6d4f0232ebbd038c258c1c7731011
Showing with 44 additions and 15 deletions.
  1. +44 −15 src/video/uikit/SDL_uikitappdelegate.m
@@ -115,9 +115,7 @@ int main(int argc, char **argv)
return image;
}

@implementation SDLLaunchScreenController {
UIInterfaceOrientationMask supportedOrientations;
}
@implementation SDLLaunchScreenController

- (instancetype)init
{
@@ -127,18 +125,16 @@ - (instancetype)init

NSBundle *bundle = [NSBundle mainBundle];
NSString *screenname = [bundle objectForInfoDictionaryKey:@"UILaunchStoryboardName"];

/* Normally we don't want to rotate from the initial orientation. */
supportedOrientations = (1 << [UIApplication sharedApplication].statusBarOrientation);
BOOL atleastiOS8 = UIKit_IsSystemVersionAtLeast(8.0);

/* Launch screens were added in iOS 8. Otherwise we use launch images. */
if (screenname && UIKit_IsSystemVersionAtLeast(8.0)) {
if (screenname && atleastiOS8) {
@try {
self.view = [bundle loadNibNamed:screenname owner:self options:nil][0];
}
@catch (NSException *exception) {
/* iOS displays a blank screen rather than falling back to an image,
* if a launch screen name is specified but it fails to load. */
/* If a launch screen name is specified but it fails to load, iOS
* displays a blank screen rather than falling back to an image. */
return nil;
}
}
@@ -216,13 +212,37 @@ - (instancetype)init
}

if (image) {
if (image.size.width > image.size.height) {
supportedOrientations = UIInterfaceOrientationMaskLandscape;
} else {
supportedOrientations = UIInterfaceOrientationMaskPortrait;
UIImageView *view = [[UIImageView alloc] initWithFrame:[UIScreen mainScreen].bounds];
UIImageOrientation imageorient = UIImageOrientationUp;

/* Bugs observed / workaround tested in iOS 8.3, 7.1, and 6.1. */
if (UIInterfaceOrientationIsLandscape(curorient)) {
if (atleastiOS8 && image.size.width < image.size.height) {
/* On iOS 8, portrait launch images displayed in forced-
* landscape mode (e.g. a standard Default.png on an iPhone
* when Info.plist only supports landscape orientations) need
* to be rotated to display in the expected orientation. */
if (curorient == UIInterfaceOrientationLandscapeLeft) {
imageorient = UIImageOrientationRight;
} else if (curorient == UIInterfaceOrientationLandscapeRight) {
imageorient = UIImageOrientationLeft;
}
} else if (!atleastiOS8 && image.size.width > image.size.height) {
/* On iOS 7 and below, landscape launch images displayed in
* landscape mode (e.g. landscape iPad launch images) need
* to be rotated to display in the expected orientation. */
if (curorient == UIInterfaceOrientationLandscapeLeft) {
imageorient = UIImageOrientationLeft;
} else if (curorient == UIInterfaceOrientationLandscapeRight) {
imageorient = UIImageOrientationRight;
}
}
}

self.view = [[UIImageView alloc] initWithImage:image];
/* Create the properly oriented image. */
view.image = [[UIImage alloc] initWithCGImage:image.CGImage scale:image.scale orientation:imageorient];

self.view = view;
}
}

@@ -234,9 +254,18 @@ - (void)loadView
/* Do nothing. */
}

- (BOOL)shouldAutorotate
{
/* If YES, the launch image will be incorrectly rotated in some cases. */
return NO;
}

- (NSUInteger)supportedInterfaceOrientations
{
return supportedOrientations;
/* We keep the supported orientations unrestricted to avoid the case where
* there are no common orientations between the ones set in Info.plist and
* the ones set here (it will cause an exception in that case.) */
return UIInterfaceOrientationMaskAll;
}

@end

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