GT2/Ejectable/node_modules/react-native-screens/ios/RNSScreen.m

708 lines
25 KiB
Objective-C

#import <UIKit/UIKit.h>
#import "RNSScreen.h"
#import "RNSScreenStackHeaderConfig.h"
#import "RNSScreenContainer.h"
#import "RNSScreenStack.h"
#import "RNSScreenWindowTraits.h"
#import <React/RCTUIManager.h>
#import <React/RCTShadowView.h>
#import <React/RCTTouchHandler.h>
@interface RNSScreenView () <UIAdaptivePresentationControllerDelegate, RCTInvalidating>
@end
@implementation RNSScreenView {
__weak RCTBridge *_bridge;
RNSScreen *_controller;
RCTTouchHandler *_touchHandler;
CGRect _reactFrame;
}
@synthesize controller = _controller;
- (instancetype)initWithBridge:(RCTBridge *)bridge
{
if (self = [super init]) {
_bridge = bridge;
_controller = [[RNSScreen alloc] initWithView:self];
_stackPresentation = RNSScreenStackPresentationPush;
_stackAnimation = RNSScreenStackAnimationDefault;
_gestureEnabled = YES;
_replaceAnimation = RNSScreenReplaceAnimationPop;
_dismissed = NO;
_hasStatusBarStyleSet = NO;
_hasStatusBarAnimationSet = NO;
_hasStatusBarHiddenSet = NO;
_hasOrientationSet = NO;
}
return self;
}
- (void)reactSetFrame:(CGRect)frame
{
_reactFrame = frame;
UIViewController *parentVC = self.reactViewController.parentViewController;
if (parentVC != nil && ![parentVC isKindOfClass:[UINavigationController class]]) {
[super reactSetFrame:frame];
}
// when screen is mounted under UINavigationController it's size is controller
// by the navigation controller itself. That is, it is set to fill space of
// the controller. In that case we ignore react layout system from managing
// the screen dimensions and we wait for the screen VC to update and then we
// pass the dimensions to ui view manager to take into account when laying out
// subviews
}
- (UIViewController *)reactViewController
{
return _controller;
}
- (void)updateBounds
{
[_bridge.uiManager setSize:self.bounds.size forView:self];
}
// Nil will be provided when activityState is set as an animated value and we change
// it from JS to be a plain value (non animated).
// In case when nil is received, we want to ignore such value and not make
// any updates as the actual non-nil value will follow immediately.
- (void)setActivityStateOrNil:(NSNumber *)activityStateOrNil
{
int activityState = [activityStateOrNil intValue];
if (activityStateOrNil != nil && activityState != _activityState) {
_activityState = activityState;
[_reactSuperview markChildUpdated];
}
}
- (void)setPointerEvents:(RCTPointerEvents)pointerEvents
{
// pointer events settings are managed by the parent screen container, we ignore
// any attempt of setting that via React props
}
- (void)setStackPresentation:(RNSScreenStackPresentation)stackPresentation
{
switch (stackPresentation) {
case RNSScreenStackPresentationModal:
#if defined(__IPHONE_OS_VERSION_MAX_ALLOWED) && defined(__IPHONE_13_0) && \
__IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_13_0
if (@available(iOS 13.0, *)) {
_controller.modalPresentationStyle = UIModalPresentationAutomatic;
} else {
_controller.modalPresentationStyle = UIModalPresentationFullScreen;
}
#else
_controller.modalPresentationStyle = UIModalPresentationFullScreen;
#endif
break;
case RNSScreenStackPresentationFullScreenModal:
_controller.modalPresentationStyle = UIModalPresentationFullScreen;
break;
#if !TARGET_OS_TV
case RNSScreenStackPresentationFormSheet:
_controller.modalPresentationStyle = UIModalPresentationFormSheet;
break;
#endif
case RNSScreenStackPresentationTransparentModal:
_controller.modalPresentationStyle = UIModalPresentationOverFullScreen;
break;
case RNSScreenStackPresentationContainedModal:
_controller.modalPresentationStyle = UIModalPresentationCurrentContext;
break;
case RNSScreenStackPresentationContainedTransparentModal:
_controller.modalPresentationStyle = UIModalPresentationOverCurrentContext;
break;
case RNSScreenStackPresentationPush:
// ignored, we only need to keep in mind not to set presentation delegate
break;
}
// There is a bug in UIKit which causes retain loop when presentationController is accessed for a
// controller that is not going to be presented modally. We therefore need to avoid setting the
// delegate for screens presented using push. This also means that when controller is updated from
// modal to push type, this may cause memory leak, we warn about that as well.
if (stackPresentation != RNSScreenStackPresentationPush) {
// `modalPresentationStyle` must be set before accessing `presentationController`
// otherwise a default controller will be created and cannot be changed after.
// Documented here: https://developer.apple.com/documentation/uikit/uiviewcontroller/1621426-presentationcontroller?language=objc
_controller.presentationController.delegate = self;
} else if (_stackPresentation != RNSScreenStackPresentationPush) {
RCTLogError(@"Screen presentation updated from modal to push, this may likely result in a screen object leakage. If you need to change presentation style create a new screen object instead");
}
_stackPresentation = stackPresentation;
}
- (void)setStackAnimation:(RNSScreenStackAnimation)stackAnimation
{
_stackAnimation = stackAnimation;
switch (stackAnimation) {
case RNSScreenStackAnimationFade:
_controller.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
break;
#if !TARGET_OS_TV
case RNSScreenStackAnimationFlip:
_controller.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
break;
#endif
case RNSScreenStackAnimationNone:
case RNSScreenStackAnimationDefault:
case RNSScreenStackAnimationSimplePush:
case RNSScreenStackAnimationSlideFromBottom:
// Default
break;
}
}
- (void)setGestureEnabled:(BOOL)gestureEnabled
{
#if defined(__IPHONE_OS_VERSION_MAX_ALLOWED) && defined(__IPHONE_13_0) && \
__IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_13_0
if (@available(iOS 13.0, *)) {
_controller.modalInPresentation = !gestureEnabled;
}
#endif
_gestureEnabled = gestureEnabled;
}
- (void)setReplaceAnimation:(RNSScreenReplaceAnimation)replaceAnimation
{
_replaceAnimation = replaceAnimation;
}
#if !TARGET_OS_TV
- (void)setStatusBarStyle:(RNSStatusBarStyle)statusBarStyle
{
_hasStatusBarStyleSet = YES;
_statusBarStyle = statusBarStyle;
[RNSScreenWindowTraits assertViewControllerBasedStatusBarAppearenceSet];
[RNSScreenWindowTraits updateStatusBarAppearance];
}
- (void)setStatusBarAnimation:(UIStatusBarAnimation)statusBarAnimation
{
_hasStatusBarAnimationSet = YES;
_statusBarAnimation = statusBarAnimation;
[RNSScreenWindowTraits assertViewControllerBasedStatusBarAppearenceSet];
}
- (void)setStatusBarHidden:(BOOL)statusBarHidden
{
_hasStatusBarHiddenSet = YES;
_statusBarHidden = statusBarHidden;
[RNSScreenWindowTraits assertViewControllerBasedStatusBarAppearenceSet];
[RNSScreenWindowTraits updateStatusBarAppearance];
}
- (void)setScreenOrientation:(UIInterfaceOrientationMask)screenOrientation
{
_hasOrientationSet = YES;
_screenOrientation = screenOrientation;
[RNSScreenWindowTraits enforceDesiredDeviceOrientation];
}
#endif
- (UIView *)reactSuperview
{
return _reactSuperview;
}
- (void)addSubview:(UIView *)view
{
if (![view isKindOfClass:[RNSScreenStackHeaderConfig class]]) {
[super addSubview:view];
} else {
((RNSScreenStackHeaderConfig*) view).screenView = self;
}
}
- (void)notifyFinishTransitioning
{
[_controller notifyFinishTransitioning];
}
- (void)notifyDismissedWithCount:(int)dismissCount
{
_dismissed = YES;
if (self.onDismissed) {
dispatch_async(dispatch_get_main_queue(), ^{
if (self.onDismissed) {
self.onDismissed(@{@"dismissCount": @(dismissCount)});
}
});
}
}
- (void)notifyWillAppear
{
if (self.onWillAppear) {
self.onWillAppear(nil);
}
// we do it here too because at this moment the `parentViewController` is already not nil,
// so if the parent is not UINavCtr, the frame will be updated to the correct one.
[self reactSetFrame:_reactFrame];
}
- (void)notifyWillDisappear
{
if (self.onWillDisappear) {
self.onWillDisappear(nil);
}
}
- (void)notifyAppear
{
if (self.onAppear) {
dispatch_async(dispatch_get_main_queue(), ^{
if (self.onAppear) {
self.onAppear(nil);
}
});
}
}
- (void)notifyDisappear
{
if (self.onDisappear) {
self.onDisappear(nil);
}
}
- (BOOL)isMountedUnderScreenOrReactRoot
{
for (UIView *parent = self.superview; parent != nil; parent = parent.superview) {
if ([parent isKindOfClass:[RCTRootView class]] || [parent isKindOfClass:[RNSScreenView class]]) {
return YES;
}
}
return NO;
}
- (void)didMoveToWindow
{
// For RN touches to work we need to instantiate and connect RCTTouchHandler. This only applies
// for screens that aren't mounted under RCTRootView e.g., modals that are mounted directly to
// root application window.
if (self.window != nil && ![self isMountedUnderScreenOrReactRoot]) {
if (_touchHandler == nil) {
_touchHandler = [[RCTTouchHandler alloc] initWithBridge:_bridge];
}
[_touchHandler attachToView:self];
} else {
[_touchHandler detachFromView:self];
}
}
- (void)presentationControllerWillDismiss:(UIPresentationController *)presentationController
{
// We need to call both "cancel" and "reset" here because RN's gesture recognizer
// does not handle the scenario when it gets cancelled by other top
// level gesture recognizer. In this case by the modal dismiss gesture.
// Because of that, at the moment when this method gets called the React's
// gesture recognizer is already in FAILED state but cancel events never gets
// send to JS. Calling "reset" forces RCTTouchHanler to dispatch cancel event.
// To test this behavior one need to open a dismissable modal and start
// pulling down starting at some touchable item. Without "reset" the touchable
// will never go back from highlighted state even when the modal start sliding
// down.
[_touchHandler cancel];
[_touchHandler reset];
}
- (RCTTouchHandler *)touchHandler
{
if (_touchHandler != nil) {
return _touchHandler;
}
UIView *parent = [self superview];
while (parent != nil && ![parent respondsToSelector:@selector(touchHandler)]) parent = parent.superview;
if (parent != nil) {
return [parent performSelector:@selector(touchHandler)];
}
return nil;
}
- (BOOL)presentationControllerShouldDismiss:(UIPresentationController *)presentationController
{
return _gestureEnabled;
}
- (void)presentationControllerDidDismiss:(UIPresentationController *)presentationController
{
if ([_reactSuperview respondsToSelector:@selector(presentationControllerDidDismiss:)]) {
[_reactSuperview performSelector:@selector(presentationControllerDidDismiss:)
withObject:presentationController];
}
}
- (void)invalidate
{
_controller = nil;
}
@end
@implementation RNSScreen {
__weak id _previousFirstResponder;
CGRect _lastViewFrame;
int _dismissCount;
BOOL _isSwiping;
BOOL _shouldNotify;
}
- (instancetype)initWithView:(UIView *)view
{
if (self = [super init]) {
self.view = view;
_shouldNotify = YES;
}
return self;
}
#if !TARGET_OS_TV
- (UIViewController *)childViewControllerForStatusBarStyle
{
UIViewController *vc = [self findChildVCForConfigAndTrait:RNSWindowTraitStyle includingModals:NO];
return vc == self ? nil : vc;
}
- (UIStatusBarStyle)preferredStatusBarStyle
{
return [RNSScreenWindowTraits statusBarStyleForRNSStatusBarStyle:((RNSScreenView *)self.view).statusBarStyle];
}
- (UIViewController *)childViewControllerForStatusBarHidden
{
UIViewController *vc = [self findChildVCForConfigAndTrait:RNSWindowTraitHidden includingModals:NO];
return vc == self ? nil : vc;
}
- (BOOL)prefersStatusBarHidden
{
return ((RNSScreenView *)self.view).statusBarHidden;
}
- (UIStatusBarAnimation)preferredStatusBarUpdateAnimation
{
UIViewController *vc = [self findChildVCForConfigAndTrait:RNSWindowTraitAnimation includingModals:NO];
if ([vc isKindOfClass:[RNSScreen class]]) {
return ((RNSScreenView *)vc.view).statusBarAnimation;
}
return UIStatusBarAnimationFade;
}
- (UIInterfaceOrientationMask)supportedInterfaceOrientations
{
UIViewController *vc = [self findChildVCForConfigAndTrait:RNSWindowTraitOrientation includingModals:YES];
if ([vc isKindOfClass:[RNSScreen class]]) {
return ((RNSScreenView *)vc.view).screenOrientation;
}
return UIInterfaceOrientationMaskAllButUpsideDown;
}
// if the returned vc is a child, it means that it can provide config;
// if the returned vc is self, it means that there is no child for config and self has config to provide,
// so we return self which results in asking self for preferredStatusBarStyle/Animation etc.;
// if the returned vc is nil, it means none of children could provide config and self does not have config either,
// so if it was asked by parent, it will fallback to parent's option, or use default option if it is the top Screen
- (UIViewController *)findChildVCForConfigAndTrait:(RNSWindowTrait)trait includingModals:(BOOL)includingModals
{
UIViewController *lastViewController = [[self childViewControllers] lastObject];
if ([self.presentedViewController isKindOfClass:[RNSScreen class]]) {
lastViewController = self.presentedViewController;
// we don't want to allow controlling of status bar appearance when we present non-fullScreen modal
// and it is not possible if `modalPresentationCapturesStatusBarAppearance` is not set to YES, so even
// if we went into a modal here and ask it, it wouldn't take any effect. For fullScreen modals, the system
// asks them by itself, so we can stop traversing here.
// for screen orientation, we need to start the search again from that modal
return !includingModals ? nil : [(RNSScreen *)lastViewController findChildVCForConfigAndTrait:trait includingModals:includingModals] ?: lastViewController;
}
UIViewController *selfOrNil = [self hasTraitSet:trait] ? self : nil;
if (lastViewController == nil) {
return selfOrNil;
} else {
if ([lastViewController conformsToProtocol:@protocol(RNScreensViewControllerDelegate)]) {
// If there is a child (should be VC of ScreenContainer or ScreenStack), that has a child that could provide the trait,
// we recursively go into its findChildVCForConfig, and if one of the children has the trait set, we return it,
// otherwise we return self if this VC has config, and nil if it doesn't
// we use `childViewControllerForStatusBarStyle` for all options since the behavior is the same for all of them
UIViewController *childScreen = [lastViewController childViewControllerForStatusBarStyle];
if ([childScreen isKindOfClass:[RNSScreen class]]) {
return [(RNSScreen *)childScreen findChildVCForConfigAndTrait:trait includingModals:includingModals] ?: selfOrNil;
} else {
return selfOrNil;
}
} else {
// child vc is not from this library, so we don't ask it
return selfOrNil;
}
}
}
- (BOOL)hasTraitSet:(RNSWindowTrait)trait
{
switch (trait) {
case RNSWindowTraitStyle: {
return ((RNSScreenView *)self.view).hasStatusBarStyleSet;
}
case RNSWindowTraitAnimation: {
return ((RNSScreenView *)self.view).hasStatusBarAnimationSet;
}
case RNSWindowTraitHidden: {
return ((RNSScreenView *)self.view).hasStatusBarHiddenSet;
}
case RNSWindowTraitOrientation: {
return ((RNSScreenView *)self.view).hasOrientationSet;
}
default: {
RCTLogError(@"Unknown trait passed: %d", (int)trait);
}
}
return NO;
}
#endif
- (void)viewDidLayoutSubviews
{
[super viewDidLayoutSubviews];
// The below code makes the screen view adapt dimensions provided by the system. We take these
// into account only when the view is mounted under UINavigationController in which case system
// provides additional padding to account for possible header, and in the case when screen is
// shown as a native modal, as the final dimensions of the modal on iOS 12+ are shorter than the
// screen size
BOOL isDisplayedWithinUINavController = [self.parentViewController isKindOfClass:[UINavigationController class]];
BOOL isPresentedAsNativeModal = self.parentViewController == nil && self.presentingViewController != nil;
if ((isDisplayedWithinUINavController || isPresentedAsNativeModal) && !CGRectEqualToRect(_lastViewFrame, self.view.frame)) {
_lastViewFrame = self.view.frame;
[((RNSScreenView *)self.viewIfLoaded) updateBounds];
}
}
- (id)findFirstResponder:(UIView*)parent
{
if (parent.isFirstResponder) {
return parent;
}
for (UIView *subView in parent.subviews) {
id responder = [self findFirstResponder:subView];
if (responder != nil) {
return responder;
}
}
return nil;
}
- (void)willMoveToParentViewController:(UIViewController *)parent
{
[super willMoveToParentViewController:parent];
if (parent == nil) {
id responder = [self findFirstResponder:self.view];
if (responder != nil) {
_previousFirstResponder = responder;
}
}
}
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
if (!_isSwiping) {
[((RNSScreenView *)self.view) notifyWillAppear];
if (self.transitionCoordinator.isInteractive) {
// we started dismissing with swipe gesture
_isSwiping = YES;
}
} else {
// this event is also triggered if we cancelled the swipe.
// The _isSwiping is still true, but we don't want to notify then
_shouldNotify = NO;
}
[RNSScreenWindowTraits updateWindowTraits];
}
- (void)viewWillDisappear:(BOOL)animated
{
[super viewWillDisappear:animated];
if (!self.transitionCoordinator.isInteractive) {
// user might have long pressed ios 14 back button item,
// so he can go back more than one screen and we need to dismiss more screens in JS stack then.
// We calculate it by substracting the difference between the index of currently displayed screen
// and the index of the target screen, which is the view of topViewController at this point.
// If the value is lower than 1, it means we are navigating forward
int selfIndex = (int)[[(RNSScreenStackView *) self.navigationController.delegate reactSubviews] indexOfObject:self.view];
int targetIndex = (int)[[(RNSScreenStackView *) self.navigationController.delegate reactSubviews] indexOfObject:self.navigationController.topViewController.view];
_dismissCount = selfIndex - targetIndex > 0 ? selfIndex - targetIndex : 1;
} else {
_dismissCount = 1;
}
// same flow as in viewWillAppear
if (!_isSwiping) {
[((RNSScreenView *)self.view) notifyWillDisappear];
if (self.transitionCoordinator.isInteractive) {
_isSwiping = YES;
}
} else {
_shouldNotify = NO;
}
}
- (void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:animated];
if (!_isSwiping || _shouldNotify) {
// we are going forward or dismissing without swipe
// or successfully swiped back
[((RNSScreenView *)self.view) notifyAppear];
}
_isSwiping = NO;
_shouldNotify = YES;
}
- (void)viewDidDisappear:(BOOL)animated
{
[super viewDidDisappear:animated];
if (self.parentViewController == nil && self.presentingViewController == nil) {
// screen dismissed, send event
[((RNSScreenView *)self.view) notifyDismissedWithCount:_dismissCount];
}
// same flow as in viewDidAppear
if (!_isSwiping || _shouldNotify) {
[((RNSScreenView *)self.view) notifyDisappear];
}
_isSwiping = NO;
_shouldNotify = YES;
[self traverseForScrollView:self.view];
}
- (void)traverseForScrollView:(UIView*)view
{
if([view isKindOfClass:[UIScrollView class]] && ([[(UIScrollView*)view delegate] respondsToSelector:@selector(scrollViewDidEndDecelerating:)]) ) {
[[(UIScrollView*)view delegate] scrollViewDidEndDecelerating:(id)view];
}
[view.subviews enumerateObjectsUsingBlock:^(__kindof UIView * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
[self traverseForScrollView:obj];
}];
}
- (void)notifyFinishTransitioning
{
[_previousFirstResponder becomeFirstResponder];
_previousFirstResponder = nil;
// the correct Screen for appearance is set after the transition, same for orientation.
[RNSScreenWindowTraits updateWindowTraits];
}
@end
@implementation RNSScreenManager
RCT_EXPORT_MODULE()
// we want to handle the case when activityState is nil
RCT_REMAP_VIEW_PROPERTY(activityState, activityStateOrNil, NSNumber)
RCT_EXPORT_VIEW_PROPERTY(gestureEnabled, BOOL)
RCT_EXPORT_VIEW_PROPERTY(replaceAnimation, RNSScreenReplaceAnimation)
RCT_EXPORT_VIEW_PROPERTY(stackPresentation, RNSScreenStackPresentation)
RCT_EXPORT_VIEW_PROPERTY(stackAnimation, RNSScreenStackAnimation)
RCT_EXPORT_VIEW_PROPERTY(onWillAppear, RCTDirectEventBlock);
RCT_EXPORT_VIEW_PROPERTY(onWillDisappear, RCTDirectEventBlock);
RCT_EXPORT_VIEW_PROPERTY(onAppear, RCTDirectEventBlock);
RCT_EXPORT_VIEW_PROPERTY(onDisappear, RCTDirectEventBlock);
RCT_EXPORT_VIEW_PROPERTY(onDismissed, RCTDirectEventBlock);
#if !TARGET_OS_TV
RCT_EXPORT_VIEW_PROPERTY(screenOrientation, UIInterfaceOrientationMask)
RCT_EXPORT_VIEW_PROPERTY(statusBarStyle, RNSStatusBarStyle)
RCT_EXPORT_VIEW_PROPERTY(statusBarAnimation, UIStatusBarAnimation)
RCT_EXPORT_VIEW_PROPERTY(statusBarHidden, BOOL)
#endif
- (UIView *)view
{
return [[RNSScreenView alloc] initWithBridge:self.bridge];
}
@end
@implementation RCTConvert (RNSScreen)
RCT_ENUM_CONVERTER(RNSScreenStackPresentation, (@{
@"push": @(RNSScreenStackPresentationPush),
@"modal": @(RNSScreenStackPresentationModal),
@"fullScreenModal": @(RNSScreenStackPresentationFullScreenModal),
@"formSheet": @(RNSScreenStackPresentationFormSheet),
@"containedModal": @(RNSScreenStackPresentationContainedModal),
@"transparentModal": @(RNSScreenStackPresentationTransparentModal),
@"containedTransparentModal": @(RNSScreenStackPresentationContainedTransparentModal)
}), RNSScreenStackPresentationPush, integerValue)
RCT_ENUM_CONVERTER(RNSScreenStackAnimation, (@{
@"default": @(RNSScreenStackAnimationDefault),
@"none": @(RNSScreenStackAnimationNone),
@"fade": @(RNSScreenStackAnimationFade),
@"flip": @(RNSScreenStackAnimationFlip),
@"simple_push": @(RNSScreenStackAnimationSimplePush),
@"slide_from_bottom": @(RNSScreenStackAnimationSlideFromBottom),
@"slide_from_right": @(RNSScreenStackAnimationDefault),
@"slide_from_left": @(RNSScreenStackAnimationDefault),
}), RNSScreenStackAnimationDefault, integerValue)
RCT_ENUM_CONVERTER(RNSScreenReplaceAnimation, (@{
@"push": @(RNSScreenReplaceAnimationPush),
@"pop": @(RNSScreenReplaceAnimationPop),
}), RNSScreenReplaceAnimationPop, integerValue)
#if !TARGET_OS_TV
RCT_ENUM_CONVERTER(RNSStatusBarStyle, (@{
@"auto": @(RNSStatusBarStyleAuto),
@"inverted": @(RNSStatusBarStyleInverted),
@"light": @(RNSStatusBarStyleLight),
@"dark": @(RNSStatusBarStyleDark),
}), RNSStatusBarStyleAuto, integerValue)
+ (UIInterfaceOrientationMask)UIInterfaceOrientationMask:(id)json
{
json = [self NSString:json];
if ([json isEqualToString:@"default"]) {
return UIInterfaceOrientationMaskAllButUpsideDown;
} else if ([json isEqualToString:@"all"]) {
return UIInterfaceOrientationMaskAll;
} else if ([json isEqualToString:@"portrait"]) {
return UIInterfaceOrientationMaskPortrait | UIInterfaceOrientationMaskPortraitUpsideDown;
} else if ([json isEqualToString:@"portrait_up"]) {
return UIInterfaceOrientationMaskPortrait;
} else if ([json isEqualToString:@"portrait_down"]) {
return UIInterfaceOrientationMaskPortraitUpsideDown;
} else if ([json isEqualToString:@"landscape"]) {
return UIInterfaceOrientationMaskLandscape;
} else if ([json isEqualToString:@"landscape_left"]) {
return UIInterfaceOrientationMaskLandscapeLeft;
} else if ([json isEqualToString:@"landscape_right"]) {
return UIInterfaceOrientationMaskLandscapeRight;
}
return UIInterfaceOrientationMaskAllButUpsideDown;
}
#endif
@end