UILable的属性及方法使用

- (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];

}