Cocoa 如何在Xcode中将值传递给另一个控制器视图
如何从xcode情节提要中的不同UIViewController获取值?在第二个视图控制器中Cocoa 如何在Xcode中将值传递给另一个控制器视图,cocoa,Cocoa,如何从xcode情节提要中的不同UIViewController获取值?在第二个视图控制器中 - (IBAction) btnPressToBringThirdView : (id) sender { ThirdViewController* newObject = [[ThirdViewController alloc] initWithNibName:@"ThirdViewController" bundle:nil]; newObject.labelString =
- (IBAction) btnPressToBringThirdView : (id) sender
{
ThirdViewController* newObject = [[ThirdViewController alloc] initWithNibName:@"ThirdViewController" bundle:nil];
newObject.labelString = @"whatever text you want";
[self.navigationController pushViewController:newObject];
[newObject release];
}
在.h文件中的第三个viewcontroller中
@property (nonatomic, retain) NSString* labelString;
在.m文件中
- (void)viewDidLoad
{
[super viewDidLoad];
yourLabel.text = labelString;
}
我最终使用了prepareForSegue方法。 首先,我在第三个视图控制器中创建一个字符串
@property (strong,nonatomic) NSString* stringFromSecondView;
然后我给推送序列一个名为getDate的ID,在我的第二个视图类中使用下面的代码,并记住导入thirdviewcontroller.h
#import "thirdViewController.h"
-(void) prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{
if([segue.identifier isEqualToString:@"getDate"]){
NSString *intro = _myDate.text;
thirdViewController *vc = [segue destinationViewController];
vc.stringFromSecondView = intro;
}
}
现在回到我的第三个虚拟控制器
_myLabel.text = stringFromSecondView;
///保存您的var
[[NSUserDefaults standardUserDefaults]setInteger:secondview.your var here forKey:@"your key to save"];
我在下面分享了我的答案
[[NSUserDefaults standardUserDefaults]setInteger:secondview.your var here forKey:@"your key to save"];