IOS#UI之UILabel

2025-02-15 技术教程

本来已经写了很多，就因为切换页面就没有了，以后切之前得注意了 mac电脑的伤不起

UI里面有很多控件比如UIView UIControl UILabel UIButton UIScrollView UIWindow UIWebView UITabBarUITableViewUITableViewCellUIToolbarUITextFieldUITextView UIImageViewUIPageControlUIPickerViewUIProgressViewUIAlertViewUISearchBarUISegmentedControlUISearchBarUISliderUISwitchUICollectionView 6.0UICollectionReusableView等

控制器有

UIPageViewControllerUIPopoverControllerUIImagePickerControllerUINavigationControllerUISplitViewControllerUICollectionViewControllerUITableViewController

开在写了，废话少说，

先将UILabel UIView和UIResponder后面在写，

UILabel的

- (void)viewDidLoad

{

[super viewDidLoad];

self.view.backgroundColor = [UIColor whiteColor];

UILabel *aLabel = [[UILabel alloc] initWithFrame:CGRectMake(20, 100, 280, 100)];

aLabel.backgroundColor = [UIColor greenColor];

aLabel.text = @"这是我在2013年的程序，今天也是我要写ios、mac和操作系统相关的技术博文，我的bolg分别是(1)http://www.cnblogs.com/leevaboo(2)http://blog.csdn.net/leevaboo,(3)http://3660064.blog.51cto.com";

aLabel.textAlignment = NSTextAlignmentCenter;//左中右对其的模式 default is left

aLabel.textColor = [UIColor blueColor];//文本颜色default is blackColor

aLabel.font = [UIFont systemFontOfSize:20];//字体的大小default is 17

aLabel.shadowColor = [UIColor redColor];//阴影default is nil

aLabel.shadowOffset = CGSizeMake(0, 1);//阴影的位置，按照xy轴的坐标位置来，default is (0 -1)表示x = 0 ，y = -1 表示在阴影在正下方 x轴左到右是负到正，y上到下是负到正

aLabel.lineBreakMode = NSLineBreakByTruncatingTail;//文本超过label的边界的文本截取方式default is NSLineBreakByTruncatingTail

aLabel.highlightedTextColor = [UIColor purpleColor];//设置文本的高亮颜色 default is nil

aLabel.highlighted = NO;//打开高亮default is NO

aLabel.userInteractionEnabled = NO;//是否交互.default is NP

aLabel.adjustsFontSizeToFitWidth = NO;//根据宽调整字体的大小但是numberOfLines = 1；default is NO

aLabel.numberOfLines = 0;

float height = [aLabel.text sizeWithFont:aLabel.font constrainedToSize:CGSizeMake(280, 100000) lineBreakMode:NSLineBreakByWordWrapping].height;//根据字符串的长度和字号的大小和Label的宽度自动计算label的高度

aLabel.baselineAdjustment = UIBaselineAdjustmentAlignBaselines;//设置label的基准线

aLabel.frame = CGRectMake(20, 100, 280, height);

[self.view addSubview:aLabel];

[aLabel release];

// Do any additional setup after loading the view.

}