//UILable的大小自适应实例 UILabel *myLable = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 2, 2)];//设定位置与大小 [myLable setFont:[UIFont fontWithName:@"Helvetica" size:20.0]];//格式 [myLable setNumberOfLines:0];//行数，只有设为0才能自适应 [myLable setBackgroundColor:[UIColor clearColor]];//背景色 myLable.shadowColor = [UIColor darkGrayColor];//阴影颜色 myLable.shadowOffset = CGSizeMake(1., 1.0);//阴影大小 NSString *text = @"abcdefghijklmnopqrstuvwxyz"; UIFont *font = [UIFont fontWithName:@"Helvetica" size:20.0]; CGSize size = [text sizeWithFont:font constrainedToSize:CGSizeMake(175.0f, 2000.0f) lineBreakMode:UILineBreakModeWordWrap]; CGRect rect = myLable.frame; rect.size = size; [myLable setFrame:rect]; [myLable setText:text]; myLable.shadowColor = [UIColor darkGrayColor];//阴影颜色 myLable.shadowOffset = CGSizeMake(2.0, 2.0);//阴影大小 [self.view addSubview:myLable]; [myLable release]; //UILable的基本用法 UILabel *lbl1 = [[UILabel alloc] initWithFrame:CGRectMake(50.0, 40.0, 200.0, 30.0)]; UILabel *lbl2 = [[UILabel alloc] initWithFrame:CGRectMake(50.0, 80.0, 200.0, 50.0)]; UILabel *lbl3 = [[UILabel alloc] initWithFrame:CGRectMake(50.0, 140.0, 200.0, 50.0)]; UILabel *lbl4 = [[UILabel alloc] initWithFrame:CGRectMake(50.0, 200.0, 200.0, 50.0)]; UILabel *lbl5 = [[UILabel alloc] initWithFrame:CGRectMake(50.0, 260.0, 200.0, 50.0)]; UILabel *lbl6 = [[UILabel alloc] initWithFrame:CGRectMake(50.0, 320.0, 200.0, 50.0)]; UILabel *lbl7 = [[UILabel alloc] initWithFrame:CGRectMake(50.0, 380.0, 200.0, 50.0)]; //设置显示文字 lbl1.text = @"lable1"; lbl2.text = @"lable2"; lbl3.text = @"lable3--lable3--lable3--lable3--lable3--lable3--lable3--lable3--lable3--lable3--lable3--11个"; lbl4.text = @"lable4--lable4--lable4--lable4--4个"; lbl5.text = @"lable5--lable5--lable5--lable5--lable5--lable5--6个"; lbl6.text = @"lable6"; lbl7.text = @"lable7"; //设置字体：粗体，正常的是SystemFontOfSize lbl1.font = [UIFont boldSystemFontOfSize:20]; //设置文字颜色 lbl1.textColor = [UIColor orangeColor]; lbl2.textColor = [UIColor purpleColor]; //设置背景颜色 lbl1.backgroundColor = [UIColor clearColor]; lbl2.backgroundColor = [UIColor colorWithRed:0.5f green:30/255.0f blue:0.3f alpha:0.5f]; //设置字体位置 lbl1.textAlignment = UITextAlignmentRight; lbl2.textAlignment = UITextAlignmentCenter; //设置字体的小适应lable的宽度 lbl4.adjustsFontSizeToFitWidth = YES; //设置lable 的行数 lbl5.numberOfLines = 2; //设置高亮 lbl6.highlighted = YES; lbl6.highlightedTextColor = [UIColor orangeColor]; //设置阴影 lbl7.shadowColor = [UIColor redColor]; lbl7.shadowOffset = CGSizeMake(1.0, 1.0); //设置是否能与用户进行交互 lbl7.userInteractionEnabled = YES; //设置lable中文字是否可变，默认为YES； lbl3.enabled = NO; //设置lable中文字过长时的显示格式 lbl3.lineBreakMode = UILineBreakModeMiddleTruncation; //截去中间 // typedef enum{ // UILineBreakModeWordWrap = 0, // UILineBreakModeCharacterWrap, // UILineBreakModeClip,//截去多余部分 // UILineBreakModeHeadTruncation,//截取头部 // UILineBreakModeTailTruncation,//截去尾部 // UILineBreakModeMiddleTruncation,//截去中间 // }UILineBreakMode; //如果adjustsFontSizeToFitWidth属性设置为YES，这个属性就用来控制文本基线的行为 lbl4.baselineAdjustment = UIBaselineAdjustmentNone; [self.view addSubview:lbl1]; [self.view addSubview:lbl2]; [self.view addSubview:lbl3]; [self.view addSubview:lbl4]; [self.view addSubview:lbl5]; [self.view addSubview:lbl6]; [self.view addSubview:lbl7]; [lbl1 release]; [lbl2 release]; [lbl3 release]; [lbl4 release]; [lbl5 release]; [lbl6 release]; [lbl7 release];
