iOS开发之UIlabel多行文字自动换行 （自动折行）

UIView *footerView = [[UIView alloc]initWithFrame:CGRectMake(10, 100, 300, 180)]; 
 
 
UILabel *label = [[UILabel alloc]initWithFrame:CGRectMake(10, 100, 300, 150)]; 
 
 
label.text = @"Hello world! Hello world!Hello world! Hello world! Hello world! Hello world! Hello world! Hello world!Hello world! Hello world! Hello world! Hello world! Hello world! Helloworld!"; 
 
 
// 
 背景颜色为红色 
 
 
label.backgroundColor = [UIColor redColor]; 
 
 
// 
 设置字体颜色为白色 
 
 
label.textColor = [UIColor whiteColor]; 
 
 
// 
 文字居中显示 
 
 
label.textAlignment = UITextAlignmentCenter; 
 
 
// 
 自动折行设置 
 
 
label.lineBreakMode = UILineBreakModeWordWrap; 
 
 
label.numberOfLines = 0;