text: //
  //  NSArray+Sort.m
  // https://github.com/hackiftekhar/IQKeyboardManager
  // Copyright (c) 2013-16 Iftekhar Qurashi.
  //
  // Permission is hereby granted, free of charge, to any person obtaining a copy
  // of this software and associated documentation files (the "Software"), to deal
  // in the Software without restriction, including without limitation the rights
  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  // copies of the Software, and to permit persons to whom the Software is
  // furnished to do so, subject to the following conditions:
  //
  // The above copyright notice and this permission notice shall be included in
  // all copies or substantial portions of the Software.
  //
  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  // THE SOFTWARE.
  
  #import "IQNSArray+Sort.h"
  #import "IQUIView+Hierarchy.h"
  
  #import <UIKit/UIView.h>
  
  @implementation NSArray (IQ_NSArray_Sort)
  
  - (NSArray*)sortedArrayByTag
  {
      return [self sortedArrayUsingComparator:^NSComparisonResult(UIView *view1, UIView *view2) {
          
          if ([view1 respondsToSelector:@selector(tag)] && [view2 respondsToSelector:@selector(tag)])
          {
              if ([view1 tag] < [view2 tag])	return NSOrderedAscending;
              
              else if ([view1 tag] > [view2 tag])	return NSOrderedDescending;
              
              else	return NSOrderedSame;
          }
          else
              return NSOrderedSame;
      }];
  }
  
  - (NSArray*)sortedArrayByPosition
  {
      return [self sortedArrayUsingComparator:^NSComparisonResult(UIView *view1, UIView *view2) {
          
          CGFloat x1 = CGRectGetMinX(view1.frame);
          CGFloat y1 = CGRectGetMinY(view1.frame);
          CGFloat x2 = CGRectGetMinX(view2.frame);
          CGFloat y2 = CGRectGetMinY(view2.frame);
          
          if (y1 < y2)  return NSOrderedAscending;
          
          else if (y1 > y2) return NSOrderedDescending;
          
          //Else both y are same so checking for x positions
          else if (x1 < x2)  return NSOrderedAscending;
          
          else if (x1 > x2) return NSOrderedDescending;
          
          else    return NSOrderedSame;
      }];
  }
  
  
  @end
  