UILable的屬性介紹

- (void)viewDidLoad
{
    [super viewDidLoad];
    
    /*
     
     Accessing the Text Attributes
     
     text  property
     
     font  property
     
     textColor  property
     
     textAlignment  property
     
     lineBreakMode  property
     
     enabled  property
     
     Sizing the Label’s Text
     
     adjustsFontSizeToFitWidth  property
     
     baselineAdjustment  property
     
     minimumFontSize  property   無例
     
     numberOfLines  property
     
     Managing Highlight Values
     
     highlightedTextColor  property
     
     highlighted  property
     
     Drawing a Shadow
     
     shadowColor  property
     
     shadowOffset  property
       
     
     userInteractionEnabled  property     
     
     */
    UILabel *label1 = [[UILabel alloc]initWithFrame:CGRectMake(50.0, 20.0, 200.0, 50.0)];
    
    UILabel *label2 = [[UILabel alloc]initWithFrame:CGRectMake(50.0, 80.0, 200.0, 50.0)];
    
    UILabel *label3 = [[UILabel alloc]initWithFrame:CGRectMake(50.0, 140.0, 200.0, 50.0)];
    
    UILabel *label4 = [[UILabel alloc]initWithFrame:CGRectMake(50.0, 200.0, 200.0, 50.0)];
    
    
    //設置顯示文字
    
    label1.text = @"label111111111111111";
    
    label2.text = @"label2";
    
    label3.text = @"label3--label3--label3--label3--label3--label3--label3--label3--label3--label3--label3--";
    
    label4.text = @"label4--label4--label4--label4--";
    

    //設置字體大小
    label1.font = [UIFont systemFontOfSize:20.0];
    label2.font = [UIFont boldSystemFontOfSize:20.0];//粗體
    
    //文字顏色
    label1.textColor = [UIColor redColor];
    
    //文字對齊方式
    //label1.textAlignment = UITextAlignmentCenter; //iOS6.0中已棄用
    
    //linebreakmode 文字打斷模式(過長) 默認位NSLineBreakByWordWrapping
    label2.lineBreakMode = NSLineBreakByClipping;
    
    //enabled  是否可用(是否響應事件和文字是否修改)
    label2.enabled = YES;
    
    //Sizing the Lable's text
    label2.adjustsFontSizeToFitWidth = YES;
   // label1.baselineAdjustment = UIBaselineAdjustmentAlignCenters;
    
    //miniumFontSize   //iOS6.0中已棄用
    //label1.minimumFontSize = 14;
    
    //設置lable的行數
    label4.numberOfLines = 3;
    
    //Managing Highlight values
    //設置高亮
    label1.highlighted = YES;
    label1.highlightedTextColor = [UIColor orangeColor];
    //設置陰影
    label3.shadowColor = [UIColor redColor];
    label3.shadowOffset = CGSizeMake(2.0, 2.0);
    
    //設置交互
    label3.userInteractionEnabled = YES;
    
    [self.view addSubview:label1];
    [self.view addSubview:label2];
    [self.view addSubview:label3];