自動適配標籤顯示

@interface ViewController ()
{
NSArray *arr;
CGFloat height;
}

@end

@implementation ViewController

• (void)viewDidLoad {
  [super viewDidLoad];
  self.title = @”多標籤”;
  self.view.backgroundColor = [UIColor whiteColor];

  arr = @[@”福利”,@”責任心”,@”呵呵呵呵呵呵”,@”祕密”,@”帥”,@”小小”,@”福利”,@”責任心”,@”呵呵呵呵呵呵”,@”祕密”,@”帥”,@”小小”,@”帥”,@”帥”];
  [self setLableView];
  }

• (void)setLableView
  {
  CGFloat x = 10.0f;
  CGFloat y = 74.0f;
  height = 40;
  CGFloat surplusWidth = self.view.frame.size.width-20; //剩餘寬度
  CGFloat lableWidth = 0; //標籤的寬度

  for (NSString *string in arr) {

   CGSize size = [string sizeWithFont:[UIFont systemFontOfSize:13] constrainedToSize: CGSizeMake(MAXFLOAT,30) lineBreakMode:NSLineBreakByWordWrapping];
  lableWidth = size.width+10;
  
  if (surplusWidth < lableWidth) {
      y = y+40;
      x = 10;
      surplusWidth = self.view.frame.size.width-20;
      height = height +40;
  }
  
  UIButton *lableBtn = [[UIButton alloc] initWithFrame:CGRectMake(x, y, lableWidth, 30)];
  [lableBtn setTitle:string forState:UIControlStateNormal];
  [lableBtn setTitleColor:[UIColor redColor] forState:UIControlStateNormal];
  lableBtn.backgroundColor = [UIColor blueColor];
  lableBtn.layer.cornerRadius = 5;
  lableBtn.layer.masksToBounds = YES;
  lableBtn.titleLabel.font = [UIFont systemFontOfSize:13];
  
  [self.view addSubview:lableBtn];
  
  x = lableWidth+10 + x;
  surplusWidth = surplusWidth - lableWidth -10;
  NSLog(@"%f",height);
  

  }
  }

@end