如何改变UILabel的大小

发布于 2024-11-09 08:44:01 字数 454 浏览 0 评论 0原文

我有一个以编程方式编码的 UILabel。我想在按下按钮时更改标签的大小。如何更改该标签的大小？这是我的代码

 UILabel *theLabel11 = [[UILabel alloc] initWithFrame:CGRectMake(0,0,100,30)];  
[theLabel11 setText:@"US"];
[theLabel11 setTextAlignment:UITextAlignmentCenter];
[theLabel11 setFont: [UIFont fontWithName:@"Arial" size:13.0f]];
[theLabel11 setBackgroundColor:[UIColor orangeColor]];
[theLabel11 setTextColor:[UIColor blackColor]];
[scroll1 addSubview:theLabel11];

原文

I have a UILabel coded programmatically. I want to change the size of the label when i pressed a button. how to change the size of that label? this is my code

 UILabel *theLabel11 = [[UILabel alloc] initWithFrame:CGRectMake(0,0,100,30)];  
[theLabel11 setText:@"US"];
[theLabel11 setTextAlignment:UITextAlignmentCenter];
[theLabel11 setFont: [UIFont fontWithName:@"Arial" size:13.0f]];
[theLabel11 setBackgroundColor:[UIColor orangeColor]];
[theLabel11 setTextColor:[UIColor blackColor]];
[scroll1 addSubview:theLabel11];

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黯淡〆 2024-11-16 08:44:01

您应该将标签声明为类属性，以便可以从其他方法访问它

要更改字体大小，请使用

[theLabel11 setFont: [UIFont fontWithName:@"Arial" size:13.0f]];

要更改标签的框架大小

theLabel11.frame = CGRectMake(x, y, width, height);

You should declare your label as class property, so it can be accessed from other methods

To change the font size use

[theLabel11 setFont: [UIFont fontWithName:@"Arial" size:13.0f]];

To change the frame size of the label us

theLabel11.frame = CGRectMake(x, y, width, height);

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柠檬心 2024-11-16 08:44:01

调整 UIView 上的空间信息的常见习惯如下，

label.frame = CGRectMake(
    x,
    y,
    width,
    height
);

您可以通过以下方式获取旧位置和高度

label.frame.origin.x
label.frame.origin.y
label.frame.size.width
label.frame.size.height

A common idiom for adjusting the spatial information on a UIView is as below

label.frame = CGRectMake(
    x,
    y,
    width,
    height
);

You can get the old position and height via

label.frame.origin.x
label.frame.origin.y
label.frame.size.width
label.frame.size.height

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花开柳相依 2024-11-16 08:44:01

如果只有一个标签添加到scroll1，则迭代滚动视图以在按钮操作中获取标签引用，如下所示

for(UIView *subView in scroll1.subViews){

if([subView isKindOfClass:[UILabel class]]){
UILabel *lbl=(UILabel*)subView;
//change size of label here
}
}

如果有许多标签，则在创建时为每个标签分配一个标签并在for循环中检查

If there is only one label added to scroll1 then, iterate the scrollview to get the label reference as follows in button action

for(UIView *subView in scroll1.subViews){

if([subView isKindOfClass:[UILabel class]]){
UILabel *lbl=(UILabel*)subView;
//change size of label here
}
}

if there are many labels assign a tag to each label while creating and check that in for loop

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