UILabel的各种属性与方法的使用(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?
