菜鸟启航：UILabel基本操作

UILabel 文本

//样式定制

label.text =
@"hello world!";
label.textColor = [UIColor
redColor];

label.textAlignment =
NSTextAlignmentCenter;
label.backgroundColor = [UIColor
blueColor];

label.font = [UIFont
boldSystemFontOfSize:20];
label.shadowOffset =
CGSizeMake(10,
10);
label.shadowColor = [UIColor
yellowColor];
label.highlighted =
YES;

label.highlightedTextColor = [UIColor
greenColor];
label.numberOfLines =
0;

label.baselineAdjustment =
UIBaselineAdjustmentNone;

label.lineBreakMode =
NSLineBreakByCharWrapping;

//创建一个Label

UILabel * label = [[UILabel
alloc] initWithFrame:CGRectMake(60,
200, 200,
200)];

//给Label提供显示内容

label.text =
@"Yestory is history,and tomorrow is mystery,but taday is a gift,that's why it's call present";

//把Label显示到屏幕上。

//Labelf

//
label.backgroundColor = [UIColor
greenColor];

//修改Label的对齐模式

label.textAlignment =
NSTextAlignmentCenter;

//靠左 NSTextAlignmentLeft

//居中 NSTextAlignmentCenter

//靠右 NSTextAlignmentRight

label.font = [UIFont
systemFontOfSize:35];

// label.font = [UIFont italicSystemFontOfSize:30];

// label.font = [UIFont boldSystemFontOfSize:30];

// label.font = [UIFont fontWithName:@"Party LET" size:40];

NSArray * array = [UIFont
familyNames];

NSLog(@"%@",array);

//限制最多显示的行数
， 默认值是 1
label.numberOfLines =
10;

//换行模式

// label.lineBreakMode = NSLineBreakByCharWrapping;

// label.lineBreakMode = NSLineBreakByClipping;

// label.lineBreakMode = NSLineBreakByTruncatingHead;

// label.lineBreakMode = NSLineBreakByTruncatingMiddle;

label.lineBreakMode =
NSLineBreakByTruncatingTail;

// NSLineBreakByCharWrapping 按字符截断

// NSLineBreakByClipping 按单词换行
从末尾裁剪最后一行

// NSLineBreakByTruncatingHead 按单词换行，末尾一行从头开始删节

label.textColor = [UIColor
redColor];

//给文字添加阴影效果

label.shadowOffset =
CGSizeMake(5,
5);
label.shadowColor = [UIColor
blackColor];

//标记
不能赋值为0
label.tag =
10;

//字体大小
自适应内容

label.adjustsFontSizeToFitWidth =
YES;

label.minimumScaleFactor =
0.5;

[self.view
addSubview:label];