菜鸟启航：UILabel基本操作

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UILabel 文本

//样式定制

label.text =@"hello world!";

label.textColor = [UIColorredColor];

label.textAlignment =NSTextAlignmentCenter;

label.backgroundColor = [UIColorblueColor];

label.font = [UIFontboldSystemFontOfSize:20];

label.shadowOffset =CGSizeMake(10,10);

label.shadowColor = [UIColoryellowColor];

label.highlighted =YES;

label.highlightedTextColor = [UIColorgreenColor];

label.numberOfLines =0;

label.baselineAdjustment =UIBaselineAdjustmentNone;

label.lineBreakMode =NSLineBreakByCharWrapping;

//创建一个Label

UILabel * label = [[UILabelalloc] 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 = [UIColorgreenColor];

//修改Label的对齐模式

label.textAlignment =NSTextAlignmentCenter;

//靠左 NSTextAlignmentLeft

//居中 NSTextAlignmentCenter

//靠右 NSTextAlignmentRight

label.font = [UIFontsystemFontOfSize:35];

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

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

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

NSArray * array = [UIFontfamilyNames];

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 = [UIColorredColor];

//给文字添加阴影效果

label.shadowOffset =CGSizeMake(5,5);

label.shadowColor = [UIColorblackColor];

//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.viewaddSubview:label];

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