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Fixed bug 4658 - iOS 12 fullscreen flag and SDL_HINT_IOS_HIDE_HOME_INDICATOR not working 

Caleb Cornett

On iOS 12, creating a window with the SDL_WINDOW_FULLSCREEN flag does not dim the home indicator or defer system gestures. The same goes for setting the SDL_HINT_IOS_HIDE_HOME_INDICATOR to "2" -- it has no effect at all.

I've tracked down the source of this misbehavior to a timing issue. The initial `setNeedsUpdate...` calls were happening too early and getting applied to the launch screen by mistake. In the attached patch, I've added a call to those functions right after the launch screen is hidden so that they apply to the main view controller instead. This appears to fix the issue, at least on my iPhone 6s Plus.
Sam Lantinga 2019-06-09 14:08:18 -07:00
parent 225ae6909e
commit e43550c039
4 changed files with 22 additions and 13 deletions
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1
src/video/uikit/SDL_uikitappdelegate.m
View File

@ -343,6 +343,7 @@ SDL_LoadLaunchImageNamed(NSString *name, int screenh)
window.alpha = 0.0;
} completion:^(BOOL finished) {
window.hidden = YES;
UIKit_ForceUpdateHomeIndicator(); /* Wait for launch screen to hide so settings are applied to the actual view controller. */
}];
}

14
src/video/uikit/SDL_uikitmessagebox.m
View File

@ -108,19 +108,7 @@ UIKit_ShowMessageBoxAlertController(const SDL_MessageBoxData *messageboxdata, in
alertwindow.hidden = YES;
}
#if !TARGET_OS_TV
/* Force the main SDL window to re-evaluate home indicator state */
SDL_Window *focus = SDL_GetFocusWindow();
if (focus) {
SDL_WindowData *data = (__bridge SDL_WindowData *) focus->driverdata;
if (data != nil) {
if (@available(iOS 11.0, *)) {
[data.viewcontroller performSelectorOnMainThread:@selector(setNeedsUpdateOfHomeIndicatorAutoHidden) withObject:nil waitUntilDone:NO];
[data.viewcontroller performSelectorOnMainThread:@selector(setNeedsUpdateOfScreenEdgesDeferringSystemGestures) withObject:nil waitUntilDone:NO];
}
}
}
#endif /* !TARGET_OS_TV */
UIKit_ForceUpdateHomeIndicator();
*buttonid = messageboxdata->buttons[clickedindex].buttonid;
return YES;

2
src/video/uikit/SDL_uikitvideo.h
View File

@ -39,6 +39,8 @@ CGRect UIKit_ComputeViewFrame(SDL_Window *window, UIScreen *screen);
void UIKit_SuspendScreenSaver(_THIS);
void UIKit_ForceUpdateHomeIndicator(void);
SDL_bool UIKit_IsSystemVersionAtLeast(double version);
#endif /* SDL_uikitvideo_h_ */

18
src/video/uikit/SDL_uikitvideo.m
View File

@ -221,6 +221,24 @@ UIKit_ComputeViewFrame(SDL_Window *window, UIScreen *screen)
return frame;
}
void
UIKit_ForceUpdateHomeIndicator()
{
#if !TARGET_OS_TV
/* Force the main SDL window to re-evaluate home indicator state */
SDL_Window *focus = SDL_GetFocusWindow();
if (focus) {
SDL_WindowData *data = (__bridge SDL_WindowData *) focus->driverdata;
if (data != nil) {
if (@available(iOS 11.0, *)) {
[data.viewcontroller performSelectorOnMainThread:@selector(setNeedsUpdateOfHomeIndicatorAutoHidden) withObject:nil waitUntilDone:NO];
[data.viewcontroller performSelectorOnMainThread:@selector(setNeedsUpdateOfScreenEdgesDeferringSystemGestures) withObject:nil waitUntilDone:NO];
}
}
}
#endif /* !TARGET_OS_TV */
}
/*
* iOS log support.
*