Seperti yang disarankan oleh banyak orang di sini, bahwa metode "pemeriksaan" tidak berfungsi dengan baik untuk semua kasus, dalam proyek saya, saya telah menemukan solusi untuk mengelolanya secara manual. Intinya adalah, kita biasanya mengelola presentasi sendiri - bukan ini yang terjadi di belakang layar dan kita harus mawas diri.
DEViewController.h mengajukan:
#import <UIKit/UIKit.h>
// it is a base class for all view controllers within a project
@interface DEViewController : UIViewController
// specify a way viewcontroller, is presented by another viewcontroller
// the presented view controller should manually assign the value to it
typedef NS_ENUM(NSUInteger, SSViewControllerPresentationMethod) {
SSViewControllerPresentationMethodUnspecified = 0,
SSViewControllerPresentationMethodPush,
SSViewControllerPresentationMethodModal,
};
@property (nonatomic) SSViewControllerPresentationMethod viewControllerPresentationMethod;
// other properties/methods...
@end
Presentasi sekarang dapat diatur dengan cara ini:
didorong pada tumpukan navigasi:
// DETestViewController inherits from DEViewController
DETestViewController *vc = [DETestViewController new];
vc.viewControllerPresentationMethod = SSViewControllerPresentationMethodPush;
[self.navigationController pushViewController:vc animated:YES];
disajikan secara sederhana dengan navigasi:
DETestViewController *vc = [DETestViewController new];
vc.viewControllerPresentationMethod = SSViewControllerPresentationMethodModal;
UINavigationController *nav = [[UINavigationController alloc]
initWithRootViewController:vc];
[self presentViewController:nav animated:YES completion:nil];
disajikan secara sederhana:
DETestViewController *vc = [DETestViewController new];
vc.viewControllerPresentationMethod = SSViewControllerPresentationMethodModal;
[self presentViewController:vc animated:YES completion:nil];
Selain itu, di dalam DEViewControllerkita dapat menambahkan fallback ke "memeriksa" jika properti yang disebutkan di atas sama dengan SSViewControllerPresentationMethodUnspecified:
- (BOOL)isViewControllerPushed
{
if (self.viewControllerPresentationMethod != SSViewControllerPresentationMethodUnspecified) {
return (BOOL)(self.viewControllerPresentationMethod == SSViewControllerPresentationMethodPush);
}
else {
// fallback to default determination method
return (BOOL)self.navigationController.viewControllers.count > 1;
}
}