UILabel文本控件（转）

#import "LabelTestViewController.h"

@implementation LabelTestViewController

/*

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 无例

numberOfLines property

Managing Highlight Values

highlightedTextColor property

highlighted property

Drawing a Shadow

shadowColor property

shadowOffset property

Drawing and Positioning Overrides

– textRectForBounds:limitedToNumberOfLines: 无例

– drawTextInRect: 无例

Setting and Getting Attributes

userInteractionEnabled property

*/

// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.

- (void)viewDidLoad {

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)];

UILabel *label5 = [[UILabel alloc]initWithFrame:CGRectMake(50.0, 260.0, 200.0, 50.0)];

UILabel *label6 = [[UILabel alloc]initWithFrame:CGRectMake(50.0, 320.0, 200.0, 50.0)];

UILabel *label7 = [[UILabel alloc]initWithFrame:CGRectMake(50.0, 380.0, 200.0, 50.0)];

//设置显示文字

label1.text = @"label1";

label2.text = @"label2";

label3.text = @"label3--label3--label3--label3--label3--label3--label3--label3--label3--label3--label3--";

label4.text = @"label4--label4--label4--label4--";

label5.text = @"label5--label5--label5--label5--label5--label5--";

label6.text = @"label6";

label7.text = @"label7";

//设置字体:粗体，正常的是 SystemFontOfSize

label1.font = [UIFont boldSystemFontOfSize:20];

//设置文字颜色

label1.textColor = [UIColor orangeColor];

label2.textColor = [UIColor purpleColor];

//设置文字位置

label1.textAlignment = UITextAlignmentRight;

label2.textAlignment = UITextAlignmentCenter;

//设置字体大小适应label宽度

label4.adjustsFontSizeToFitWidth = YES;

//设置label的行数

label5.numberOfLines = 2;

UIlabel.backgroudColor=[UIColor clearColor]; //可以去掉背景色

//设置高亮

label6.highlighted = YES;

label6.highlightedTextColor = [UIColor orangeColor];

//设置阴影

label7.shadowColor = [UIColor redColor];

label7.shadowOffset = CGSizeMake(1.0,1.0);

//设置是否能与用户进行交互

label7.userInteractionEnabled = YES;

//设置label中的文字是否可变，默认值是YES

label3.enabled = NO;

//设置文字过长时的显示格式

label3.lineBreakMode = UILineBreakModeMiddleTruncation;//截去中间

// typedef enum {

// UILineBreakModeWordWrap = 0,

// UILineBreakModeCharacterWrap,

// UILineBreakModeClip,//截去多余部分

// UILineBreakModeHeadTruncation,//截去头部

// UILineBreakModeTailTruncation,//截去尾部

// UILineBreakModeMiddleTruncation,//截去中间

// } UILineBreakMode;

//如果adjustsFontSizeToFitWidth属性设置为YES，这个属性就来控制文本基线的行为

label4.baselineAdjustment = UIBaselineAdjustmentNone;

// typedef enum {

// UIBaselineAdjustmentAlignBaselines,

// UIBaselineAdjustmentAlignCenters,

// UIBaselineAdjustmentNone,

// } UIBaselineAdjustment;

[self.view addSubview:label1];

[self.view addSubview:label2];

[self.view addSubview:label3];

[self.view addSubview:label4];

[self.view addSubview:label5];

[self.view addSubview:label6];

[self.view addSubview:label7];

[label1 release];

[label2 release];

[label3 release];

[label4 release];

[label5 release];

[label6 release];

[label7 release];

[super viewDidLoad];

}

/*

// Override to allow orientations other than the default portrait orientation.

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {

// Return YES for supported orientations

return (interfaceOrientation == UIInterfaceOrientationPortrait);

}

*/

- (void)didReceiveMemoryWarning {

// Releases the view if it doesn't have a superview.

[super didReceiveMemoryWarning];

// Release any cached data, images, etc that aren't in use.

}

- (void)viewDidUnload {

// Release any retained subviews of the main view.

// e.g. self.myOutlet = nil;

}

- (void)dealloc {

[super dealloc];

}

@end