最后,我设法做到了这一点 - 尽管方式不太好。
UIKeyCommands
被添加到RootSplitViewController
。
- (NSArray *)keyCommands {
if (self.view.traitCollection.horizontalSizeClass == UIUserInterfaceSizeClassRegular) {
return @[
[UIKeyCommand keyCommandWithInput:@"r" modifierFlags:UIKeyModifierCommand action:@selector(changeRestaurant:) discoverabilityTitle:@"Change restaurant"],
[UIKeyCommand keyCommandWithInput:@"t" modifierFlags:UIKeyModifierCommand action:@selector(changeTable:) discoverabilityTitle:@"Change table"]
];
} else {
if (self.masterIsVisible == YES) {
return @[
[UIKeyCommand keyCommandWithInput:@"t" modifierFlags:UIKeyModifierCommand action:@selector(changeRestaurant:) discoverabilityTitle:@"Change restaurant"]
];
} else {
return @[
[UIKeyCommand keyCommandWithInput:@"t" modifierFlags:UIKeyModifierCommand action:@selector(changeTable:) discoverabilityTitle:@"Change table"]
];
}
}
}
这些方法调用特定的UIViewController
实际的方法。
- (void)changeRestaurant:(id)sender {
UINavigationController *nav = (UINavigationController *)[self.viewControllers objectAtIndex:0];
RestaurantController *master = [nav.viewControllers objectAtIndex:0];
[master changeRestaurant];
}
- (void)changeTable:(id)sender {
UINavigationController *nav = (UINavigationController *)[self.viewControllers objectAtIndex:1];
TableController *detail = [nav.viewControllers objectAtIndex:0];
[detail changeTable:sender];
}
为了这个工作我添加了一个BOOL
到UISplitViewController
。
@interface RootSplitViewController : UISplitViewController
@property (nonatomic) BOOL masterIsVisible;
@end
然后在MasterViewController
中调用。
- (void)viewDidDisappear:(BOOL)animated {
RootSplitViewController *rootView = (RootSplitViewController *)self.splitViewController;
rootView.masterIsVisible = NO;
}
- (void)viewDidAppear:(BOOL)animated {
RootSplitViewController *rootView = (RootSplitViewController *)self.splitViewController;
rootView.masterIsVisible = YES;
}
我知道这可能不是漂亮的方法,但它的工作原理。如果有人知道更好的方法来做到这一点,我很乐意听取您的意见。