UILabels崩溃我的应用程序

Question

所以我不知道任何方式绘制文本或字符串，但UILabel。所以我初始化了这个标签，但它一直让我的应用崩溃。

下面是初始化标签，并导致崩溃的方法：

- （无效）setupScore {

scoreLabel = [NSString stringWithFormat:@"%d", score]; 
scoreLabel.frame = CGRectMake(262, 250, 100, 40); 
[scoreLabel setText: scoreString]; 

//normally you'll want a transparent background for your label 
scoreLabel.backgroundColor = [UIColor clearColor]; 

//you can use non-standard fonts 
[scoreLabel setFont:[UIFont fontWithName:@"TimesNewRoman" size: 1.0f]]; 

//change the label's text color 
scoreLabel.textColor = [UIColor whiteColor]; 

//add it to your view 
scoreLabel.transform = CGAffineTransformMakeRotation(89.53); 
[self addSubview:scoreLabel]; } 

- （无效）setupPausedLabel {

pausedLabel = [NSString stringWithFormat:@"Tap To Resume"]; 
pausedLabel.frame = CGRectMake(262, 250, 100, 40); 
[pausedLabel setText: @"Tap To Resume"]; 

//normally you'll want a transparent background for your label 
pausedLabel.backgroundColor = [UIColor clearColor]; 

//you can use non-standard fonts 
[pausedLabel setFont:[UIFont fontWithName:@"TimesNewRoman" size: 1.0f]]; 

//change the label's text color 
pausedLabel.textColor = [UIColor whiteColor]; 

//add it to your view 
pausedLabel.transform = CGAffineTransformMakeRotation(89.53); 
[pausedLabel setHidden: YES]; 
[self addSubview:pausedLabel]; } 

感谢您的帮助！

Answer 1

你正在做的：

scoreLabel = [NSString stringWithFormat:@"%d", score]; 

你应该这样做：

scoreLabel = [[UILabel alloc] init]; // And release it somewhere 
scoreString = [NSString stringWithFormat:@"%d", score]; 

和同为pauseLabel。

Answer 2

您正在使用NSString类初始化您的标签，它应该是UILabel。确保使用良好的formater生成字符串：％d为整数，％@为NSString对象。检查此doc以找到适当的说明符：

NSString* scoreString = [NSString stringWithFormat:@"%d", score]; 
NSString* anotherString = @"Tap To Resume"; 
NSString* pausedString = [NSString stringWithFormat:@"%@", anotherString]; 

Answer 3

您在第一行中有错误。

scoreLabel = [NSString stringWithFormat:@"%d", score]; 

scoreLabel=[[UILable alloc]init]; 
scoreLabel.text=[NSString stringWithFormat:@"%i",score]; 

而且在NextMethod

同样的问题

pausedLabel = [NSString stringWithFormat:@"Tap To Resume"]; 

这是不对的

pausedLabel=[[UILable alloc]init]; 
pausedLable.text=[NSString stringWithFormat:@"Tap To Resume"]; 

UILable文本属性你搞乱，所以它给你崩溃问题

Answer 4

-(void) setupScore{ 

scoreLabel.text = [NSString stringWithFormat:@"%d", score]; 
scoreLabel.frame = CGRectMake(262, 250, 100, 40); 

[scoreLabel setText：sco reString];

//normally you'll want a transparent background for your label 
scoreLabel.backgroundColor = [UIColor clearColor]; 

//you can use non-standard fonts 
[scoreLabel setFont:[UIFont fontWithName:@"TimesNewRoman" size: 1.0f]]; 

//change the label's text color 
scoreLabel.textColor = [UIColor whiteColor]; 

//add it to your view 
scoreLabel.transform = CGAffineTransformMakeRotation(89.53); 
[self.view addSubview:scoreLabel]; 

}

它的正常工作，我称它在viewDidLoad中

- (void)viewDidLoad 

{ [超级viewDidLoad中]

scoreLabel=[[UILabel alloc]init]; 

scoreString=[NSString stringWithString:@"1221"]; 

score=10; 

[self setupScore]; 

scoreString=[NSString stringWithString:@"11"]; 


[self setupScore]; 

scoreString=[NSString stringWithString:@"333"]; 


[self setupScore]; 

[self setupScore]; 

[email protected]"okey..."; 

}