Ios 使用脚本传递参数
我想创建一个游戏,基本上是让你的朋友放一个字。你会猜到输入了什么单词。因此,我必须将单词从Ios 使用脚本传递参数,ios,storyboard,Ios,Storyboard,我想创建一个游戏,基本上是让你的朋友放一个字。你会猜到输入了什么单词。因此,我必须将单词从FirstViewController传递到SecondViewController 第一视图控制器 - (IBAction)doneBtn:(id)sender { self.guessWord = [enterTF.text lowercaseString]; NSLog (@"Guessword s %@", guessWord); } - (void)prepareForSegue
FirstViewController
传递到SecondViewController
第一视图控制器
- (IBAction)doneBtn:(id)sender {
self.guessWord = [enterTF.text lowercaseString];
NSLog (@"Guessword s %@", guessWord);
}
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
// Make sure your segue name in storyboard is the same as this line
NSLog (@"%@", [segue identifier]);
if ([[segue identifier] isEqualToString:@"F2S"])
{
// Get reference to the destination view controller
SecondViewController *gvc = [segue destinationViewController];
// Pass any objects to the view controller here, like...
gvc.guessWord =self.guessWord;
}
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
NSLog(@"%@",guessWord);
}
第二视图控制器
- (IBAction)doneBtn:(id)sender {
self.guessWord = [enterTF.text lowercaseString];
NSLog (@"Guessword s %@", guessWord);
}
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
// Make sure your segue name in storyboard is the same as this line
NSLog (@"%@", [segue identifier]);
if ([[segue identifier] isEqualToString:@"F2S"])
{
// Get reference to the destination view controller
SecondViewController *gvc = [segue destinationViewController];
// Pass any objects to the view controller here, like...
gvc.guessWord =self.guessWord;
}
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
NSLog(@"%@",guessWord);
}
在SecondViewController
guessword输出“null”中。为什么我会变空
在第二个视图控制器中,在.h文件中声明变量,例如字符串类型:
@property (nonatomic, strong) NSString *someText;
在.m文件中合成它:
@synthesize someText;
在第一个视图控制器的segue方法中:
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
// Make sure your segue name in storyboard is the same as this line
NSLog (@"%@", [segue identifier]);
if ([[segue identifier] isEqualToString:@"F2S"])
{
// Get reference to the destination view controller
SecondViewController *gvc = [segue destinationViewController];
gvc.someText = **YOUR TEXT HERE** ; //this should set the value in the second view controller
}
}
如果传递的值不是字符串,请相应更改。以下是代码中发生的事件序列:
-viewDidLoad:
在第二个视图控制器上调用-prepareforsgue:
在第一个视图控制器上被调用-viewwillbeen:
和-viewdidebeen:
在第二个视图控制器上被调用在
-prepareforsgue:
中配置猜测词之前调用-viewDidLoad:
。尝试-查看将显示:
或-查看显示:
而不是在记录猜测词时显示:
,您的问题是什么?为什么我得到的是null,而不是输入的猜测词为什么为null…很明显,它是否击中了您试图传递它的那一行?是的,它击中了那一行。