UILabel的各种属性与方法的使用［转］

  1 #import "LabelTestViewController.h"   
  2 @implementation LabelTestViewController   
  3 /*  
  4 Accessing the Text Attributes  
  5     text  property    
  6     font  property    
  7     textColor  property    
  8     textAlignment  property    
  9     lineBreakMode  property      
 10     enabled  property    
 11 Sizing the Label’s Text  
 12     adjustsFontSizeToFitWidth  property    
 13     baselineAdjustment  property    
 14     minimumFontSize  property   无例  
 15     numberOfLines  property    
 16 Managing Highlight Values  
 17     highlightedTextColor  property    
 18     highlighted  property    
 19 Drawing a Shadow  
 20     shadowColor  property    
 21     shadowOffset  property    
 22 Drawing and Positioning Overrides  
 23     – textRectForBounds:limitedToNumberOfLines: 无例   
 24     – drawTextInRect:  无例  
 25 Setting and Getting Attributes  
 26     userInteractionEnabled  property    
 27 */  
 28 
 29 // Implement viewDidLoad to do additional setup after loading the view, typically from a nib.   
 30 - (void)viewDidLoad {   
 31     UILabel *label1 = [[UILabel alloc]initWithFrame:CGRectMake(50.0, 20.0, 200.0, 50.0)];   
 32     UILabel *label2 = [[UILabel alloc]initWithFrame:CGRectMake(50.0, 80.0, 200.0, 50.0)];   
 33     UILabel *label3 = [[UILabel alloc]initWithFrame:CGRectMake(50.0, 140.0, 200.0, 50.0)];   
 34     UILabel *label4 = [[UILabel alloc]initWithFrame:CGRectMake(50.0, 200.0, 200.0, 50.0)];   
 35     UILabel *label5 = [[UILabel alloc]initWithFrame:CGRectMake(50.0, 260.0, 200.0, 50.0)];   
 36     UILabel *label6 = [[UILabel alloc]initWithFrame:CGRectMake(50.0, 320.0, 200.0, 50.0)];   
 37     UILabel *label7 = [[UILabel alloc]initWithFrame:CGRectMake(50.0, 380.0, 200.0, 50.0)];   
 38 
 39     //设置显示文字   
 40     label1.text = @"label1";   
 41     label2.text = @"label2";   
 42     label3.text = @"label3--label3--label3--label3--label3--label3--label3--label3--label3--label3--label3--";   
 43     label4.text = @"label4--label4--label4--label4--";   
 44     label5.text = @"label5--label5--label5--label5--label5--label5--";   
 45     label6.text = @"label6";   
 46     label7.text = @"label7";   
 47 
 48     //设置字体   
 49     label1.font = [UIFont boldSystemFontOfSize:20];   
 50 
 51     //设置文字颜色   
 52     label1.textColor = [UIColor orangeColor];   
 53     label2.textColor = [UIColor purpleColor];   
 54 
 55     //设置文字位置   
 56     label1.textAlignment = UITextAlignmentRight;   
 57     label2.textAlignment = UITextAlignmentCenter;   
 58     //设置字体大小适应label宽度   
 59     label4.adjustsFontSizeToFitWidth = YES;   
 60 
 61     //设置label的行数   
 62     label5.numberOfLines = 2;   
 63 
 64     //设置高亮   
 65     label6.highlighted = YES;   
 66     label6.highlightedTextColor = [UIColor orangeColor];   
 67 
 68     //设置阴影   
 69     label7.shadowColor = [UIColor redColor];   
 70     label7.shadowOffset = CGSizeMake(1.0,1.0);   
 71 
 72     //设置是否能与用户进行交互   
 73     label7.userInteractionEnabled = YES;   
 74 
 75     //设置label中的文字是否可变，默认值是YES   
 76     label3.enabled = NO;   
 77 
 78     //设置文字过长时的显示格式   
 79     label3.lineBreakMode = UILineBreakModeMiddleTruncation;//截去中间   
 80 //  typedef enum {   
 81 //      UILineBreakModeWordWrap = 0,   
 82 //      UILineBreakModeCharacterWrap,   
 83 //      UILineBreakModeClip,//截去多余部分   
 84 //      UILineBreakModeHeadTruncation,//截去头部   
 85 //      UILineBreakModeTailTruncation,//截去尾部   
 86 //      UILineBreakModeMiddleTruncation,//截去中间   
 87 //  } UILineBreakMode;   
 88 
 89     //如果adjustsFontSizeToFitWidth属性设置为YES，这个属性就来控制文本基线的行为   
 90     label4.baselineAdjustment = UIBaselineAdjustmentNone;   
 91 //  typedef enum {   
 92 //      UIBaselineAdjustmentAlignBaselines,   
 93 //      UIBaselineAdjustmentAlignCenters,   
 94 //      UIBaselineAdjustmentNone,   
 95 //  } UIBaselineAdjustment;   
 96 
 97 
 98     [self.view addSubview:label1];   
 99     [self.view addSubview:label2];   
100     [self.view addSubview:label3];   
101     [self.view addSubview:label4];   
102     [self.view addSubview:label5];   
103     [self.view addSubview:label6];   
104     [self.view addSubview:label7];   
105 
106     [label1 release];   
107     [label2 release];   
108     [label3 release];   
109     [label4 release];   
110     [label5 release];   
111     [label6 release];   
112     [label7 release];   
113 
114     [super viewDidLoad];   
115 }   
116 
117 /*  
118 // Override to allow orientations other than the default portrait orientation.  
119 - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {  
120     // Return YES for supported orientations  
121     return (interfaceOrientation == UIInterfaceOrientationPortrait);  
122 }  
123 */  
124 - (void)didReceiveMemoryWarning {   
125     // Releases the view if it doesn't have a superview.   
126     [super didReceiveMemoryWarning];   
127 
128     // Release any cached data, images, etc that aren't in use.   
129 }   
130 - (void)viewDidUnload {   
131     // Release any retained subviews of the main view.   
132     // e.g. self.myOutlet = nil;   
133 }   
134 
135 - (void)dealloc {   
136     [super dealloc];   
137 }   
138 @end
View Code
转帖来源于此：http://wiki.eoe.cn/page/iOS_blog_page_91033.html
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http://blog.163.com/cz_jdton/blog/static/92732504201292310161928/
UILabel的各种属性与方法的使用［转］

iOS代码传参调用系统自带应用 ：

iOS代码传参调用系统自带应用：
