我是iOS开发的新手,我遇到了控制器问题。我简化了我的问题,让每个人的生活更轻松。
所以这是设置: 根视图是Tab Bar Controller,它有2个选项卡,View A和View B
视图A在相机完成后启动相机,取消相机,然后转到另一个名为View C的视图,现在标签栏中的视图C 不。
点击时,View C中有一个按钮,它会关闭当前视图并进入视图B. 这是问题:当我尝试从View C加载到View B标签栏消失时。
有谁知道如何解决这个问题?
查看C仅在拍摄照片后有用,因此将其添加到标签栏不是解决方案。
由于
修改 这是我在标签之间传递数据的代码:
我如何从视图A调用视图C:
[self dismissViewControllerAnimated:YES completion:
^{
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard_iPhone" bundle:nil];
ViewControllerA *A = [storyboard instantiateViewControllerWithIdentifier:@"ViewControllerA"];
A.data1 = data1;
A.data2 = data2;
A.image = image;
[self presentViewController:A animated:YES completion:nil];
}];
我如何从View C调用View B:
-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if([segue.identifier isEqualToString:@"toViewB"]) {
SomeClass *obj = [[SomeClass alloc] init];
[obj setData1: _data1];
[obj setData2: _data2.text];
[obj setImage: _image];
ViewControllerB *B = (ViewControllerB *)segue.destinationViewController;
B.newObj = obj;
[B createCell];
}
}
我还想提一下,我添加到ViewB的按钮也消失了,
答案 0 :(得分:0)
以下是您如何使用UITabBarController
第一次在UIViewController
文件中创建UINavigationController
和AppDelegate.h
的所有对象,并使用以下AppDelegate.m
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window=[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds ]];
self.viewCon=[[ViewController alloc] init];
self.navCon=[[UINavigationController alloc] initWithRootViewController:self.viewCon];
self.navCon.navigationBar.tintColor=[UIColor blackColor];
self.viewCon.title=@"First View";
self.fView=[[FirstViewController alloc] init];
self.FnavCon=[[UINavigationController alloc] initWithRootViewController:self.fView];
self.FnavCon.navigationBar.tintColor=[UIColor blackColor];
self.fView.title=@"Secound View";
self.sView=[[SecoundViewController alloc] init];
self.SnavCon=[[UINavigationController alloc] initWithRootViewController:self.sView];
self.SnavCon.navigationBar.tintColor=[UIColor blackColor];
self.sView.title=@"Third View";
.
.
// create UIViewController and UINavigationController As you need
.
.
.
UIImage *img1=[UIImage imageNamed:@"Australia.gif"];
self.tbItem1=[[UITabBarItem alloc] initWithTitle:@"First Page" image:img1 tag:1];
self.viewCon.tabBarItem=self.tbItem1;
UIImage *img2=[UIImage imageNamed:@"Cameroon.gif"];
self.tbItem2=[[UITabBarItem alloc] initWithTitle:@"Secound Page" image:img2 tag:2];
self.fView.tabBarItem=self.tbItem2;
UIImage *img3=[UIImage imageNamed:@"Canada.png"];
self.tbItem3=[[UITabBarItem alloc] initWithTitle:@"Third Page" image:img3 tag:3];
self.sView.tabBarItem=self.tbItem3;
NSMutableArray *viewArr=[[NSMutableArray alloc] init];
[viewArr addObject:self.navCon];
[viewArr addObject:self.FnavCon];
[viewArr addObject:self.SnavCon];
self.tbCon=[[UITabBarController alloc] init];
self.tbCon.viewControllers=viewArr;
[self.window addSubview:tbCon.view];
[self.window makeKeyAndVisible];
return YES;
}