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
转帖来源于此：http://wiki.eoe.cn/page/iOS_blog_page_91033.html
iOS代码传参调用系统自带应用 ：
如：调用电话功能、调用safar打开网页等
http://blog.163.com/cz_jdton/blog/static/92732504201292310161928/