constraintsWithVisualFormats

gistfile1.m

// NSArray *formats = @[
//                       @"H:|-[textView]-|",
//                       @"H:|-[moreButton]-|",
//                       @"V:|-[textView]-[moreButton]-|",
//                      ];
// [self.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormats:formats options:0 metrics:nil views:views]];


@implementation NSLayoutConstraint (Common)

+ (NSArray *)constraintsWithVisualFormats:(NSArray *)formats options:(NSLayoutFormatOptions)opts metrics:(NSDictionary *)metrics views:(NSDictionary *)views
{
  NSMutableArray *constraints = [NSMutableArray array];

  [formats enumerateObjectsUsingBlock:^(NSString *format, NSUInteger idx, BOOL *stop) {
    [constraints addObjectsFromArray:[NSLayoutConstraint constraintsWithVisualFormat:format options:opts metrics:metrics views:views]];
  }];

  return constraints;
}

@end