我创建了一个SlidingViewController，它有一个Main，Right和Left视图控制器。现在我想添加一个新的函数/方法，只要单击其中一个RightViewController的表视图单元格，就可以将主视图控制器切换到视图控制器与indexpath.row中的表视图单元链接的视图控制器。新视图控制器应该仍然可以使用此左右视图控制器。任何人都有创建自己的SlidingViewController或MenuViewController的经验，可以帮助我如何处理这个问题？任何帮助将不胜感激。提前谢谢。
SlidingViewController.h
@interface SlidingViewController : UIViewController <UIGestureRecognizerDelegate>
@property (retain) UIViewController *mainViewController;
@property (retain) UIViewController *leftViewController;
@property (retain) UIViewController *rightViewController;
@property (retain) NSNumber *leftSwipeEnabled;
@property (assign) BOOL leftDrawerVisible;
@property (retain) NSNumber *rightSwipeEnabled;
@property (assign) BOOL rightDrawerVisible;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil mainViewController:(UIViewController *)main leftViewController:(UIViewController *)left andRightViewController:(UIViewController *)right;
-(void)toggleLeftDrawer;
-(void)toggleRightDrawer;
@end
SlidingViewController.m
@implementation SlidingViewController
@synthesize mainViewController, leftViewController, rightViewController;
@synthesize leftDrawerVisible, rightDrawerVisible;
@synthesize leftSwipeEnabled, rightSwipeEnabled;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil mainViewController:(UIViewController *)main leftViewController:(UIViewController *)left andRightViewController:(UIViewController *)right
{
if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil])
{
mainViewController = main;
leftViewController = left;
rightViewController = right;
leftSwipeEnabled = [NSNumber numberWithBool:NO];
rightSwipeEnabled = [NSNumber numberWithBool:NO];
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
[self addChildViewController:self.mainViewController];
[self.view addSubview:[self.mainViewController view]];
self.mainViewController.view.frame = self.view.frame;
[self.mainViewController didMoveToParentViewController:self];
self.mainViewController.view.layer.shadowColor = [UIColor blackColor].CGColor;
self.mainViewController.view.layer.shadowOpacity = 0.2f;
self.mainViewController.view.layer.shadowRadius = 5.0f;
CGPathRef path = [UIBezierPath bezierPathWithRect:self.mainViewController.view.bounds].CGPath;
self.mainViewController.view.layer.shadowPath = path;
if(self.leftViewController != nil)
{
UISwipeGestureRecognizer *leftSwipeRecognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipe:)];
leftSwipeRecognizer.direction = UISwipeGestureRecognizerDirectionRight;
leftSwipeRecognizer.delegate = self;
[self.mainViewController.view addGestureRecognizer:leftSwipeRecognizer];
}
if(self.rightViewController != nil)
{
UISwipeGestureRecognizer *rightSwipeRecognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipe:)];
rightSwipeRecognizer.direction = UISwipeGestureRecognizerDirectionLeft;
rightSwipeRecognizer.delegate = self;
[self.mainViewController.view addGestureRecognizer:rightSwipeRecognizer];
}
}
-(void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
[self layoutShadowWithDuration:0];
}
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
[super touchesBegan:touches withEvent:event];
if(self.leftDrawerVisible)
[self toggleLeftDrawer];
else if(self.rightDrawerVisible)
[self toggleRightDrawer];
}
-(BOOL) gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldBeRequiredToFailByGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer
{
return YES;
}
-(void)handleSwipe:(UISwipeGestureRecognizer *)recognizer
{
if(recognizer.state == UIGestureRecognizerStateEnded)
{
if(recognizer.direction == UISwipeGestureRecognizerDirectionRight && [self.leftSwipeEnabled boolValue])
[self toggleLeftDrawer];
else if(recognizer.direction == UISwipeGestureRecognizerDirectionLeft && [self.rightSwipeEnabled boolValue])
[self toggleRightDrawer];
}
}
-(void)toggleLeftDrawer
{
if (self.rightDrawerVisible)
{
return;
}
if(self.leftDrawerVisible)
{
[UIView animateWithDuration:0.2
delay:0.0
options:UIViewAnimationOptionCurveLinear
animations:^{
self.mainViewController.view.frame = CGRectMake(0.0, 0.0, self.mainViewController.view.frame.size.width, self.mainViewController.view.frame.size.height);}
completion:^(BOOL finished)
{
[self.leftViewController.view removeFromSuperview];
[self.leftViewController willMoveToParentViewController:nil];
[self.leftViewController removeFromParentViewController];
}];
self.leftDrawerVisible = NO;
self.mainViewController.view.userInteractionEnabled = YES;
}
else
{
[self addChildViewController:self.leftViewController];
[self.view insertSubview:[self.leftViewController view] belowSubview:[self.mainViewController view]];
[self.leftViewController didMoveToParentViewController:self];
CGPathRef path = [UIBezierPath bezierPathWithRect:self.mainViewController.view.bounds].CGPath;
self.mainViewController.view.layer.shadowPath = path;
self.mainViewController.view.layer.shadowOffset = CGSizeMake(-3, 0);
NSInteger width = 260;
if([UIDevice currentDevice].userInterfaceIdiom == UIUserInterfaceIdiomPad)
width = 320;
self.leftViewController.view.frame = CGRectMake(0, 0, width, self.view.bounds.size.height);
[UIView animateWithDuration:0.2
delay:0.0
options:UIViewAnimationOptionCurveLinear
animations:^{ self.mainViewController.view.frame = CGRectMake(width, 0, self.mainViewController.view.frame.size.width, self.mainViewController.view.frame.size.height); }
completion:^(BOOL finished) { self.leftViewController.view.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleLeftMargin; }];
self.leftDrawerVisible = YES;
self.mainViewController.view.userInteractionEnabled = NO;
}
}
-(void)toggleRightDrawer
{
if(self.leftDrawerVisible)
return;
if(self.rightDrawerVisible)
{
[UIView animateWithDuration:0.2
delay:0.0
options:UIViewAnimationOptionCurveLinear
animations:^{
self.mainViewController.view.frame = CGRectMake(0.0, 0.0, self.mainViewController.view.frame.size.width, self.mainViewController.view.frame.size.height);
}
completion:^(BOOL finished){
[self.rightViewController.view removeFromSuperview];
[self.rightViewController willMoveToParentViewController:nil];
[self.rightViewController removeFromParentViewController];
}];
self.rightDrawerVisible = NO;
self.mainViewController.view.userInteractionEnabled = YES;
}
else
{
[self addChildViewController:self.rightViewController];
[self.view insertSubview:[self.rightViewController view] belowSubview:[self.mainViewController view]];
[self.rightViewController didMoveToParentViewController:self];
CGPathRef path = [UIBezierPath bezierPathWithRect:self.mainViewController.view.bounds].CGPath;
self.mainViewController.view.layer.shadowPath = path;
self.mainViewController.view.layer.shadowOffset = CGSizeMake(3, 0);
NSInteger width = 260;
if([UIDevice currentDevice].userInterfaceIdiom == UIUserInterfaceIdiomPad)
width = 320;
self.rightViewController.view.frame = CGRectMake(self.view.bounds.size.width- width, 0, width, self.view.bounds.size.height);
[UIView animateWithDuration:0.2 delay:0.0
options:UIViewAnimationOptionCurveLinear
animations:^{
self.mainViewController.view.frame = CGRectMake(-width, 0, self.mainViewController.view.frame.size.width, self.mainViewController.view.frame.size.height);
}
completion:^(BOOL finished){
self.rightViewController.view.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleLeftMargin;
}];
self.rightDrawerVisible = YES;
self.mainViewController.view.userInteractionEnabled = NO;
}
}
-(void) layoutShadowWithDuration:(NSTimeInterval)duration
{
CGPathRef oldShadowPath = self.mainViewController.view.layer.shadowPath;
if (oldShadowPath)
{
CFRetain(oldShadowPath);
}
// Update shadow path for the view
CGPathRef path = [UIBezierPath bezierPathWithRect:self.mainViewController.view.bounds].CGPath;
self.mainViewController.view.layer.shadowPath = path;
// You would think setting duration to 0 would cause the animation added below to not animate. You would be wrong.
if (duration != 0)
{
if (oldShadowPath)
{
[self.mainViewController.view.layer addAnimation:((^ {
CABasicAnimation *transition = [CABasicAnimation animationWithKeyPath:@"shadowPath"];
transition.fromValue = (__bridge id)oldShadowPath;
transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
transition.duration = duration;
return transition;
})()) forKey:@"transition"];
CFRelease(oldShadowPath);
}
else
if (oldShadowPath)
CFRelease(oldShadowPath);
}
else
if (oldShadowPath)
CFRelease(oldShadowPath);
}
- (void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration {
[self layoutShadowWithDuration:duration];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
}
@end
答案 0 :(得分：4)
您可以通过“委托设计模式”
来执行此操作在RightViewController.h中添加以下行。
@protocol RightViewControllerDelegate <NSObject>
@required
- (void)somethingClicked : (id)theObject;
@end
@interface RightViewController : UIViewController
@property (nonatomic, assign) id<RightViewControllerDelegate> delegate;
@end
在RightViewController.m中添加以下行。
- (void)somethingClicked : (id)theObject
{
[_delegate somethingClicked:theObject];
}
使用以下代码更新MainViewController.h。
@interface MainViewController : UIViewController <RightViewControllerDelegate>
最后在MainViewController.m中添加以下代码
- (void)somethingClicked : (id)theObject
{
// Perform Your Task
}