UILabel的高度和宽度自适应

常常会遇到这样须要 Label宽度不肯定。须要自适应、今天恰好因为这种状况，顺便写了一个类别 。特别简单：ui

1 建立category  （附上建立类别的方法）
blog

.h 文件get

+ (CGFloat)getHeightByWidth:(CGFloat)width title:(NSString *)title font:(UIFont*)font;

+ (CGFloat)getWidthWithTitle:(NSString *)title font:(UIFont *)font;it

.m 文件import

+ (CGFloat)getHeightByWidth:(CGFloat)width title:(NSString *)title font:(UIFont *)font
{
    
    UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, width, 0)];
    label.text = title;
    label.font = font;
    label.numberOfLines = 0;
    [label sizeToFit];
    CGFloat height = label.frame.size.height;
    return height;
}

+ (CGFloat)getWidthWithTitle:(NSString *)title font:(UIFont *)font {
    UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 1000, 0)];
    label.text = title;
    label.font = font;
    [label sizeToFit];
    return label.frame.size.width;
}

2 使用时 引入头文件自适应

#import "UILabel+LabelHeightAndWidth.h"

三、在须要的地方使用方法
方法

#pragma mark - labelOne  SizeToFitHeight
- (void)buildLabelOne
{
    UILabel *labelOne = [[UILabel alloc] initWithFrame:CGRectMake(10, 30, 200, 50)];
    labelOne.text = @"这是labelOne的高度自适应这是labelOne的高度自适应这是labelOne的高度自适应这是labelOne的高度自适应";
    labelOne.backgroundColor = [UIColor grayColor];
    labelOne.font = [UIFont systemFontOfSize:20];
    labelOne.numberOfLines = 0;
    CGFloat height = [UILabel getHeightByWidth:labelOne.frame.size.width title:labelOne.text font:labelOne.font];
    labelOne.frame = CGRectMake(10, 30, 200, height);
    [self.view addSubview:labelOne];
    
}

#pragma mark - labelTwo  SizeToFitWidth
- (void)buildLabelTwo
{
    UILabel *labelTwo = [[UILabel alloc] initWithFrame:CGRectMake(10, 300, 50, 100)];
    labelTwo.text = @"这是labelTwo的宽度自适应这是labelTwo的宽度自适应这是labelTwo的宽度自适应";
    labelTwo.backgroundColor = [UIColor cyanColor];
    labelTwo.font = [UIFont systemFontOfSize:20];
    CGFloat width = [UILabel getWidthWithTitle:labelTwo.text font:labelTwo.font];
    labelTwo.frame = CGRectMake(10, 300, width, 100);
    [self.view addSubview:labelTwo];
}

im

就这样大功告成了。。。
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