在rootViewController中
1
2
| [self.view addSubView：childViewController.view];
[self addChildViewController:childViewController];
|
如果view是在storyboard中设置的话，那么需要用
1
2
| UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
childViewController *cvc=[storyboard instantiateViewControllerWithIdentifier:@"cvc"];
|
如果用
1
| childViewController *cvc = [[childViewController alloc]init];
|
会导致subview一片空白。
至于在subview中向ParentView传递信息，可以使用delegate protocol
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
| //childViewController.h
@protocol DetailsViewControllerDelegate
-(void)didClicked;
@end
@property (nonatomic,retain) id<DetailsViewControllerDelegate>_touchdelegate;
//childViewController.m
- (IBAction)buttomClicked:(id)sender {
[self._touchdelegate didClicked];
}
//ViewController.h
@interface ViewController : UIViewController<DetailsViewControllerDelegate>
// ViewController.m
-(void)didClicked
{
self.text.text = @"123";
}
- (IBAction)clicked:(id)sender {
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
childViewController *cvc=[storyboard instantiateViewControllerWithIdentifier:@"cvc"];
CGRect frame = self.view.bounds;
frame.origin.y = 110;
cvc.view.frame = frame;
[self addChildViewController:cvc];
[self.view addSubview:cvc.view];
cvc._touchdelegate = self;
[cvc didMoveToParentViewController:self];
}
|
可以添加一个环境变量帮助查看错误信息
