我们经常会有这样的需求：
在文字后面添加 视图展示 标签或者按钮“点击查看”

解决方案：
获取到这段文字的最后一个内容所在的位置即它的坐标，只要知道了这个位置就可以在后面添加其他内容

代码思路：

//高固定宽不固定： 当内容为一行的时候：contentLabel所在的尺寸:

CGRect OneLineRect = [text boundingRectWithSize:CGSizeMake(MAXFLOAT, height) options:NSStringDrawingUsesLineFragmentOrigin | NSStringDrawingUsesFontLeading  attributes:dic context:NULL];

CGSize oneLineSize = OneLineRect.size;

//宽固定高不固定： 当内容为多行的时候：

CGRect multipleLinesRect = [text boundingRectWithSize:CGSizeMake(kLabelWidth, MAXFLOAT) options:NSStringDrawingUsesLineFragmentOrigin |
                            NSStringDrawingUsesFontLeading attributes:dic context:NULL];
CGSize multipleLinesSize = multipleLinesRect.size;

通过两种size对比获取到相应的位置：

CGPoint lastPoint ;
CGFloat width = 0.0;
CGFloat proY = 0.0;

//判断是否多行显示:  
if (oneLineSize.width <= multipleLinesSize.width) 
{
    //内容显示1行:最后一个字所在的 x: label的x + 这行文字的宽度，y不变
    lastPoint = CGPointMake(contentLabX + oneLineSize.width, _contentLabel.frame.origin.y);
    width = oneLineSize.width;
    proY = _contentLabel.frame.origin.y;
   
} else {

    int oneLineW = (int)oneLineSize.width;
    int multiLinew = (int)multipleLinesSize.width;
    int value = oneLineW %  multiLinew  ;
    
    NSLog(@"一行的宽度：%f  多行的宽度：%f 一行总宽度：%f",oneLineSize.width,multipleLinesSize.width,kLabelWidth);
    lastPoint = CGPointMake(contentLabX  + value , multipleLinesSize.height - oneLineSize.height );
    width = kLabelWidth;
    height = multipleLinesSize.height;
    proY = multipleLinesSize.height - oneLineSize.height +    _contentLabel.frame.origin.y;
}

lastPoint即为需要的位置。

一行的效果：

一行文字

多行的效果：

多行文字

完整代码：

import "ViewController.h"

define kWidth ([[UIScreen mainScreen] bounds].size.width)

define kLabelWidth (kWidth - 30)

@interface ViewController ()

@property(nonatomic, strong) UILabel * contentLabel;
@property(nonatomic, strong) UILabel * proLab;
@property(nonatomic, strong) UILabel * personaLab;

@end

@implementation ViewController

  -   (void)viewDidLoad {
[super viewDidLoad];

CGFloat contentLabX = 15;

_contentLabel = [[UILabel alloc] initWithFrame:CGRectMake(contentLabX, 80, kLabelWidth, 25)];
_contentLabel.font = [UIFont systemFontOfSize:18.0];
_contentLabel.backgroundColor = [UIColor lightGrayColor];
_contentLabel.lineBreakMode = NSLineBreakByWordWrapping;
_contentLabel.numberOfLines = 0;
[self.view addSubview:_contentLabel];
NSString  * text = [NSString stringWithFormat:@"%@", @"多行册书数据：若该内容属于机构性质的，则标记“机构”标识;若该内容属于个人所有，则标记“个人”标识  "];
 //  text = @"1行测试数据";
  _contentLabel.text = text;

NSDictionary *dic = [NSDictionary dictionaryWithObjectsAndKeys:[UIFont systemFontOfSize:18.0], NSFontAttributeName, nil];
//默认label的高度：
CGFloat height = 25;

//高固定宽不固定： 当内容为一行的时候：
CGRect OneLineRect = [text boundingRectWithSize:CGSizeMake(MAXFLOAT, height) options:NSStringDrawingUsesLineFragmentOrigin | NSStringDrawingUsesFontLeading  attributes:dic context:NULL];

CGSize oneLineSize = OneLineRect.size;
if (oneLineSize.height < height) {
    oneLineSize.height = height;
}


//宽固定高不固定： 当内容为多行的时候：
CGRect multipleLinesRect = [text boundingRectWithSize:CGSizeMake(kLabelWidth, MAXFLOAT) options:NSStringDrawingUsesLineFragmentOrigin |
                            NSStringDrawingUsesFontLeading attributes:dic context:NULL];
CGSize multipleLinesSize = multipleLinesRect.size;


CGPoint lastPoint ;
CGFloat width = 0.0;
CGFloat proY = 0.0;

//判断是否折行:  
if (oneLineSize.width <= multipleLinesSize.width) 
{
    //内容显示1行:最后一个字所在的 x: label的x + 这行文字的宽度，y不变
    lastPoint = CGPointMake(contentLabX + oneLineSize.width, _contentLabel.frame.origin.y);
    width = oneLineSize.width;
    proY = _contentLabel.frame.origin.y;
   
} else {

    int oneLineW = (int)oneLineSize.width;
    int multiLinew = (int)multipleLinesSize.width;
    int value = oneLineW %  multiLinew  ;
    
    NSLog(@"一行的宽度：%f  多行的宽度：%f 一行总宽度：%f",oneLineSize.width,multipleLinesSize.width,kLabelWidth);
    lastPoint = CGPointMake(contentLabX  + value , multipleLinesSize.height - oneLineSize.height );
    width = kLabelWidth;
    height = multipleLinesSize.height;
    proY = multipleLinesSize.height - oneLineSize.height +      _contentLabel.frame.origin.y;
}


CGFloat x = lastPoint.x;
_contentLabel.frame = CGRectMake(contentLabX, 80, width, height);

 //添加需要的视图：
_proLab = [UILabel new];
_proLab.frame = CGRectMake(x + 20, proY , 40, 25);
_proLab.text = @"机构";

_proLab.textColor = [UIColor redColor];
_proLab.font = [UIFont systemFontOfSize:14.0];
_proLab.layer.masksToBounds = YES;
_proLab.textAlignment = NSTextAlignmentCenter;
_proLab.layer.borderColor = [UIColor redColor].CGColor;
_proLab.layer.borderWidth = 1.0;
[self.view addSubview:_proLab];


_personaLab = [UILabel new];
_personaLab.frame = CGRectMake(CGRectGetMaxX(_proLab.frame) + 10, proY , 40, 25);
_personaLab.text = @"个人";
_personaLab.textColor = [UIColor redColor];
_personaLab.font = [UIFont systemFontOfSize:14.0];
_personaLab.layer.masksToBounds = YES;
_personaLab.textAlignment = NSTextAlignmentCenter;
_personaLab.layer.borderColor = [UIColor blueColor].CGColor;
_personaLab.layer.borderWidth = 1.0;
[self.view addSubview:_personaLab];


// Do any additional setup after loading the view, typically from a nib.

}

@end