使用HVTableView动态展开tableView中的cell

效果:

源码:

HVTableView.h 与 HVTableView.m

  1. //
  2. //  HVTableView.h
  3. //  HRVTableView
  4. //
  5. //  Created by Hamidreza Vakilian on 25/11/2013
  6. //  Copyright (c) 2013 Hamidreza Vakilian. All rights reserved.
  7. //  Website: http://www.infracyber.com/
  8. //  Email:   xerxes235@yahoo.com
  9. //
  10.  
  11. //
  12. //***************    HVTableView - UITableView with expand/collapse feature   *****************************
  13. //                    by hamidreza vakilian
  14. //
  15. //
  16. //    This is a subclass of UITableView with expand/collapse feature that may come so handy in many apps.
  17. //    The developer can save a lot of time using an expand/collapse tableView instead of creating a detail viewController for
  18. //        every cell. I mean the details of each cell can be displayed immediately on the same table without switching to
  19. //        another view. On the other hand in my opinion it far more impressive and eye-catching from a regular user's view.
  20. //
  21. //        To create an instance of HVTableView you go by code.
  22. //      (currently I you can't do it from xib - I will work on that later)
  23. //        That's simple as:
  24. //
  25. //            HVTableView* myTable = [[HVTableView alloc] initWithFrame:CGRectMake(84, 250, 600, 600) expandOnlyOneCell:NO enableAutoScroll:YES];
  26. //            myTable.HVTableViewDelegate = self;
  27. //            myTable.HVTableViewDataSource = self;
  28. //            [myTable reloadData];
  29. //            [self.view addSubview:myTable];
  30.  
  31. //    Two important parameters when initializing the HVTableView
  32. //        if expandOnlyOneCell==TRUE: Just one cell will be expanded at a time.
  33. //        if expandOnlyOneCell==FALSE: multiple cells can be expanded at a time
  34. //
  35. //        if enableAutoScroll==TRUE: when the user touches a cell, the HVTableView will automatically scroll to it
  36. //        if enableAutoScroll==FALSE: when the user touches a cell, the HVTableView won't scroll. but the if the cell was close to the bottom of the table; the lower part of it may go invisible because it grows
  37. //
  38. //
  39. //    Your viewController must conform to HVTableViewDelegate, HVTableViewDataSource protocols. Just like the regular
  40. //            UITableView
  41. //
  42. //    Like before you implement these familiar delegate functions:
  43. //        -(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
  44. //        -(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
  45. //
  46. //    I added a boolean parameter the heightForRowAtIndexPath function so you will return different values for an expanded or a collapsed cell.
  47. //    (isExpanded==TRUE: return the size of the cell in expanded state)
  48. //    (isExpanded==FALSE: return the size of the cell in collapsed (initial) state)
  49. //
  50. //        -(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath isExpanded:(BOOL)isexpanded
  51. //
  52. //
  53. // I also added a boolean parameter to the cellForRowAtIndexPath function too. update the cell's content respecting it's state (isExpanded)
  54. //        -(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath isExpanded:(BOOL)isExpanded
  55. //
  56. //
  57. //    Now the interesting functions are here. Implement this function and it will be fired when a cell is going to expand. You can perform your drawings, animations, etc. in this function:
  58. //        -(void)tableView:(UITableView *)tableView collapseCell: (UITableViewCell*)cell withIndexPath:(NSIndexPath*) indexPath;
  59. //
  60. //  Implement this function. it will be fired when a cell is going to collapse. You can perform your drawings, animations, etc. or clearing up the cell in this function:
  61. //        -(void)tableView:(UITableView *)tableView expandCell: (UITableViewCell*)cell withIndexPath:(NSIndexPath*) indexPath;
  62. //
  63. // IMPORTANT NOTE: there are some delegate functions from UITableViewDelegate that I have commented their forwarding. If you need to implement those on your viewController or smth, go to HVTableView.m and uncomment those delegate functions. If you don't uncomment them; your delegate functions won't fire up.
  64. //
  65. //
  66. //    This code may contain bugs. I don't garauntee its functionality, but use it on your own risk. I also tried to craft it with best performance, yet it can be optimized more.
  67. //
  68. //
  69. //    Please don't hesitate to mail me your feedbacks and suggestions or a bug report. I would be very thankful of your responses.
  70. //
  71. //    ON THE BOTTOM LINE: I allow you to use my code in your applications with freedom in making any modifications, but if you are going to do so, or you just like it and want further updates and bug fixes please consider donating me via this url:
  72. //    https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=xerxes235%40yahoo%2ecom&lc=AE&item_name=Hamidreza%20Vakilian&item_number=HVTableView%20donation&currency_code=USD&bn=PP%2dDonationsBF%3abtn_donateCC_LG%2egif%3aNonHosted
  73. //
  74. //
  75. //    Thanks,....
  76. // ***************************************************************************************************************
  77.  
  78. #import <UIKit/UIKit.h>
  79.  
  80. @protocol HVTableViewDataSource <NSObject>
  81. @required
  82. - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section;
  83. -(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath isExpanded:(BOOL)isExpanded;
  84. -(void)tableView:(UITableView *)tableView collapseCell: (UITableViewCell*)cell withIndexPath:(NSIndexPath*) indexPath;
  85. -(void)tableView:(UITableView *)tableView expandCell: (UITableViewCell*)cell withIndexPath:(NSIndexPath*) indexPath;
  86. @optional
  87.  
  88. - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView;
  89. - (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section;
  90. - (NSString *)tableView:(UITableView *)tableView titleForFooterInSection:(NSInteger)section;
  91. - (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath;
  92. - (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath;
  93. - (NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView;
  94. - (NSInteger)tableView:(UITableView *)tableView sectionForSectionIndexTitle:(NSString *)title atIndex:(NSInteger)index;
  95. - (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath;
  96. - (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)sourceIndexPath toIndexPath:(NSIndexPath *)destinationIndexPath;
  97. @end
  98.  
  99. @protocol HVTableViewDelegate <NSObject>
  100. @optional
  101. - (void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath;
  102. - (void)tableView:(UITableView *)tableView willDisplayHeaderView:(UIView *)view forSection:(NSInteger)section NS_AVAILABLE_IOS(6_0);
  103. - (void)tableView:(UITableView *)tableView willDisplayFooterView:(UIView *)view forSection:(NSInteger)section NS_AVAILABLE_IOS(6_0);
  104. - (void)tableView:(UITableView *)tableView didEndDisplayingCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath*)indexPath NS_AVAILABLE_IOS(6_0);
  105. - (void)tableView:(UITableView *)tableView didEndDisplayingHeaderView:(UIView *)view forSection:(NSInteger)section NS_AVAILABLE_IOS(6_0);
  106. - (void)tableView:(UITableView *)tableView didEndDisplayingFooterView:(UIView *)view forSection:(NSInteger)section NS_AVAILABLE_IOS(6_0);
  107. -(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath isExpanded:(BOOL)isExpanded;
  108. - (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section;
  109. - (CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section;
  110. - (CGFloat)tableView:(UITableView *)tableView estimatedHeightForRowAtIndexPath:(NSIndexPath *)indexPath NS_AVAILABLE_IOS(7_0);
  111. - (CGFloat)tableView:(UITableView *)tableView estimatedHeightForHeaderInSection:(NSInteger)section NS_AVAILABLE_IOS(7_0);
  112. - (CGFloat)tableView:(UITableView *)tableView estimatedHeightForFooterInSection:(NSInteger)section NS_AVAILABLE_IOS(7_0);
  113. - (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section;
  114. - (UIView *)tableView:(UITableView *)tableView viewForFooterInSection:(NSInteger)section;
  115. - (UITableViewCellAccessoryType)tableView:(UITableView *)tableView accessoryTypeForRowWithIndexPath:(NSIndexPath *)indexPath NS_DEPRECATED_IOS(2_0, 3_0);
  116. - (void)tableView:(UITableView *)tableView accessoryButtonTappedForRowWithIndexPath:(NSIndexPath *)indexPath;
  117. - (BOOL)tableView:(UITableView *)tableView shouldHighlightRowAtIndexPath:(NSIndexPath *)indexPath NS_AVAILABLE_IOS(6_0);
  118. - (void)tableView:(UITableView *)tableView didHighlightRowAtIndexPath:(NSIndexPath *)indexPath NS_AVAILABLE_IOS(6_0);
  119. - (void)tableView:(UITableView *)tableView didUnhighlightRowAtIndexPath:(NSIndexPath *)indexPath NS_AVAILABLE_IOS(6_0);
  120. - (NSIndexPath *)tableView:(UITableView *)tableView willSelectRowAtIndexPath:(NSIndexPath *)indexPath;
  121. - (NSIndexPath *)tableView:(UITableView *)tableView willDeselectRowAtIndexPath:(NSIndexPath *)indexPath NS_AVAILABLE_IOS(3_0);
  122. - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath;
  123. - (void)tableView:(UITableView *)tableView didDeselectRowAtIndexPath:(NSIndexPath *)indexPath NS_AVAILABLE_IOS(3_0);
  124. - (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath;
  125. - (NSString *)tableView:(UITableView *)tableView titleForDeleteConfirmationButtonForRowAtIndexPath:(NSIndexPath *)indexPath NS_AVAILABLE_IOS(3_0);
  126. - (BOOL)tableView:(UITableView *)tableView shouldIndentWhileEditingRowAtIndexPath:(NSIndexPath *)indexPath;
  127. - (void)tableView:(UITableView*)tableView willBeginEditingRowAtIndexPath:(NSIndexPath *)indexPath;
  128. - (void)tableView:(UITableView*)tableView didEndEditingRowAtIndexPath:(NSIndexPath *)indexPath;
  129. - (NSIndexPath *)tableView:(UITableView *)tableView targetIndexPathForMoveFromRowAtIndexPath:(NSIndexPath *)sourceIndexPath toProposedIndexPath:(NSIndexPath *)proposedDestinationIndexPath;
  130. - (NSInteger)tableView:(UITableView *)tableView indentationLevelForRowAtIndexPath:(NSIndexPath *)indexPath;
  131. - (BOOL)tableView:(UITableView *)tableView shouldShowMenuForRowAtIndexPath:(NSIndexPath *)indexPath NS_AVAILABLE_IOS(5_0);
  132. - (BOOL)tableView:(UITableView *)tableView canPerformAction:(SEL)action forRowAtIndexPath:(NSIndexPath *)indexPath withSender:(id)sender NS_AVAILABLE_IOS(5_0);
  133. - (void)tableView:(UITableView *)tableView performAction:(SEL)action forRowAtIndexPath:(NSIndexPath *)indexPath withSender:(id)sender NS_AVAILABLE_IOS(5_0);
  134. @end
  135.  
  136. @interface HVTableView : UITableView <UITableViewDataSource, UITableViewDelegate>
  137. {
  138.  
  139.     NSIndexPath *selectedIndexPath;
  140.     int actionToTake;
  141.     NSMutableArray* expandedIndexPaths;
  142. }
  143.  
  144. @property (weak,nonatomic) id <HVTableViewDelegate> HVTableViewDelegate;
  145. @property (weak,nonatomic) id <HVTableViewDataSource> HVTableViewDataSource;
  146. @property (nonatomic) BOOL expandOnlyOneCell;
  147. @property (nonatomic) BOOL enableAutoScroll;
  148.  
  149. - (id)initWithFrame:(CGRect)frame
  150.   expandOnlyOneCell:(BOOL)expandOnlyOneCell
  151.    enableAutoScroll:(BOOL)enableAutoScroll;
  152.  
  153. @end
  1. //
  2. //  HVTableView.m
  3. //  HRVTableView
  4. //
  5. //  Created by Hamidreza Vakilian on 25/11/2013
  6. //  Copyright (c) 2013 Hamidreza Vakilian. All rights reserved.
  7. //  Website: http://www.infracyber.com/
  8. //  Email:   xerxes235@yahoo.com
  9. //
  10.  
  11. #import "HVTableView.h"
  12.  
  13. @implementation HVTableView
  14. @synthesize HVTableViewDelegate, HVTableViewDataSource;
  15.  
  16. - (id)initWithCoder:(NSCoder *)aDecoder {
  17.     self = [super initWithCoder:aDecoder];
  18.     if(self) {
  19.         self.delegate = self;
  20.         self.dataSource = self;
  21.         expandedIndexPaths = [NSMutableArray new];
  22.     }
  23.     return self;
  24. }
  25.  
  26. - (id)initWithFrame:(CGRect)frame expandOnlyOneCell:(BOOL)expandOnlyOneCell enableAutoScroll: (BOOL)enableAutoScroll
  27. {
  28.     self = [super initWithFrame:frame];
  29.     if (self) {
  30.         // Initialization code
  31.         _expandOnlyOneCell = expandOnlyOneCell;
  32.         if (!_expandOnlyOneCell)
  33.             expandedIndexPaths = [[NSMutableArray alloc] init];
  34.  
  35.         _enableAutoScroll = enableAutoScroll;
  36.  
  37.         self.delegate = self;
  38.         self.dataSource = self;
  39.  
  40.     }
  41.     return self;
  42. }
  43.  
  44. //////// IMPORTANT!!!!!!!!!!!!!!!!!!!!!
  45. //////// UITableViewDataSource Protocol Forwarding
  46. - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
  47. {
  48.     return [HVTableViewDataSource tableView:tableView numberOfRowsInSection:section];
  49. }
  50.  
  51. -(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
  52. {
  53.     return [HVTableViewDataSource numberOfSectionsInTableView:tableView];
  54. }
  55.  
  56. - (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
  57. {
  58.     if ([HVTableViewDataSource respondsToSelector:@selector(tableView:titleForHeaderInSection:)])
  59.         return [HVTableViewDataSource tableView:tableView titleForHeaderInSection:section];
  60.     return nil;
  61. }
  62.  
  63. - (NSString *)tableView:(UITableView *)tableView titleForFooterInSection:(NSInteger)section
  64. {    if ([HVTableViewDataSource respondsToSelector:@selector(tableView:titleForFooterInSection:)])
  65.     return [HVTableViewDataSource tableView:tableView titleForFooterInSection:section];
  66.     return nil;
  67. }
  68.  
  69. - (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
  70. {    if ([HVTableViewDataSource respondsToSelector:@selector(tableView:canEditRowAtIndexPath:)])
  71.     return [HVTableViewDataSource tableView:tableView canEditRowAtIndexPath:indexPath];
  72.     return NO;
  73. }
  74.  
  75. - (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath
  76. {
  77.     if ([HVTableViewDataSource respondsToSelector:@selector(tableView:canMoveRowAtIndexPath:)])
  78.         return [HVTableViewDataSource tableView:tableView canMoveRowAtIndexPath:indexPath];
  79.     return NO;
  80. }
  81.  
  82. - (NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView
  83. {
  84.     if ([HVTableViewDataSource respondsToSelector:@selector(sectionIndexTitlesForTableView:)])
  85.         return [HVTableViewDataSource sectionIndexTitlesForTableView:tableView];
  86.     return nil;
  87. }
  88.  
  89. - (NSInteger)tableView:(UITableView *)tableView sectionForSectionIndexTitle:(NSString *)title atIndex:(NSInteger)index
  90. {
  91.     if ([HVTableViewDataSource respondsToSelector:@selector(tableView:sectionForSectionIndexTitle:atIndex:)])
  92.         return [HVTableViewDataSource tableView:tableView sectionForSectionIndexTitle:title atIndex:index];
  93.     return ;
  94. }
  95.  
  96. - (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
  97. {
  98.     if ([HVTableViewDataSource respondsToSelector:@selector(tableView:commitEditingStyle:forRowAtIndexPath:)])
  99.         return [HVTableViewDataSource tableView:tableView commitEditingStyle:editingStyle forRowAtIndexPath:indexPath];
  100. }
  101.  
  102. - (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)sourceIndexPath toIndexPath:(NSIndexPath *)destinationIndexPath
  103. {
  104.     if ([HVTableViewDataSource respondsToSelector:@selector(tableView:moveRowAtIndexPath:toIndexPath:)])
  105.         return [HVTableViewDataSource tableView:tableView moveRowAtIndexPath:sourceIndexPath toIndexPath:destinationIndexPath];
  106. }
  107.  
  108. -(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
  109. {
  110.     UITableViewCell* cell;
  111.  
  112.     if (self.expandOnlyOneCell)
  113.     {
  114.         if (actionToTake == ) // e.g. the first time or an expanded cell from before gets in to view
  115.         {
  116.             if (selectedIndexPath)
  117.                 if (selectedIndexPath.row == indexPath.row && selectedIndexPath.section == indexPath.section)
  118.                 {
  119.                     cell = [HVTableViewDataSource tableView:tableView cellForRowAtIndexPath:indexPath isExpanded:YES];//i want it expanded
  120.                     return cell;
  121.                 }
  122.  
  123.             cell = [HVTableViewDataSource tableView:tableView cellForRowAtIndexPath:indexPath isExpanded:NO];
  124.  
  125.             return cell; //it's already collapsed!
  126.         }
  127.  
  128.         cell = [HVTableViewDataSource tableView:tableView cellForRowAtIndexPath:indexPath isExpanded:NO];
  129.  
  130.         if(actionToTake == -)
  131.         {
  132.             [HVTableViewDataSource tableView:tableView collapseCell:cell withIndexPath:indexPath];
  133.             actionToTake = ;
  134.         }
  135.         else
  136.         {
  137.             [HVTableViewDataSource tableView:tableView expandCell:cell withIndexPath:indexPath];
  138.             actionToTake = ;
  139.         }
  140.     }
  141.     else
  142.     {
  143.         if (actionToTake == ) // e.g. the first time or an expanded cell from before gets in to view
  144.         {
  145.             BOOL alreadyExpanded = NO;
  146.             NSIndexPath* correspondingIndexPath;
  147.             for (NSIndexPath* anIndexPath in expandedIndexPaths) {
  148.                 if (anIndexPath.row == indexPath.row && anIndexPath.section == indexPath.section)
  149.                 {alreadyExpanded = YES; correspondingIndexPath = anIndexPath;}
  150.             }
  151.  
  152.             if (alreadyExpanded)
  153.                 cell = [HVTableViewDataSource tableView:tableView cellForRowAtIndexPath:indexPath isExpanded:YES];
  154.             else
  155.                 cell = [HVTableViewDataSource tableView:tableView cellForRowAtIndexPath:indexPath isExpanded:NO];
  156.  
  157.             return cell; //it's already collapsed!
  158.  
  159.         }
  160.  
  161.         cell = [HVTableViewDataSource tableView:tableView cellForRowAtIndexPath:indexPath isExpanded:NO];
  162.  
  163.         if(actionToTake == -)
  164.         {
  165.             [HVTableViewDataSource tableView:tableView collapseCell:cell withIndexPath:indexPath];
  166.             actionToTake = ;
  167.         }
  168.         else
  169.         {
  170.             [HVTableViewDataSource tableView:tableView expandCell:cell withIndexPath:indexPath];
  171.             actionToTake = ;
  172.         }
  173.     }
  174.  
  175.     return cell;
  176. }
  177.  
  178. //////// IMPORTANT!!!!!!!!!!!!!!!!!!!!!
  179. //////// IMPORTANT!!!!!!!!!!!!!!!!!!!!!
  180. //////// IMPORTANT!!!!!!!!!!!!!!!!!!!!!
  181. //////// IMPORTANT!!!!!!!!!!!!!!!!!!!!!
  182. //////// IMPORTANT!!!!!!!!!!!!!!!!!!!!!
  183. //////// UITableViewDelegate Protocol Forwarding
  184. //////// NOTE::::: If you want to use any of these protocols in your code; you must uncomment it. I have comment them for performance reasons
  185. /*
  186.  - (void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
  187.  {
  188.     if ([HVTableViewDelegate respondsToSelector:@selector(tableView:willDisplayCell:forRowAtIndexPath:)])
  189.  [HVTableViewDelegate tableView:tableView willDisplayCell:cell forRowAtIndexPath:indexPath];
  190.  }
  191.  
  192.  -(void)tableView:(UITableView *)tableView willDisplayHeaderView:(UIView *)view forSection:(NSInteger)section
  193.  {
  194.     if ([HVTableViewDelegate respondsToSelector:@selector(tableView:willDisplayHeaderView:forSection:)])
  195.  [HVTableViewDelegate tableView:tableView willDisplayHeaderView:view forSection:section];
  196.  }
  197.  
  198.  -(void)tableView:(UITableView *)tableView willDisplayFooterView:(UIView *)view forSection:(NSInteger)section
  199.  {
  200.     if ([HVTableViewDelegate respondsToSelector:@selector(tableView:willDisplayFooterView:forSection:)])
  201.  [HVTableViewDelegate tableView:tableView willDisplayFooterView:view forSection:section];
  202.  }
  203.  
  204.  -(void)tableView:(UITableView *)tableView didEndDisplayingCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
  205.  {
  206.     if ([HVTableViewDelegate respondsToSelector:@selector(tableView:didEndDisplayingCell:forRowAtIndexPath:)])
  207.  [HVTableViewDelegate tableView:tableView didEndDisplayingCell:cell forRowAtIndexPath:indexPath];
  208.  }
  209.  
  210.  - (void)tableView:(UITableView *)tableView didEndDisplayingHeaderView:(UIView *)view forSection:(NSInteger)section
  211.  {
  212.     if ([HVTableViewDelegate respondsToSelector:@selector(tableView:didEndDisplayingHeaderView:forSection:)])
  213.  [HVTableViewDelegate tableView:tableView didEndDisplayingHeaderView:view forSection:section];
  214.  }
  215.  
  216.  - (void)tableView:(UITableView *)tableView didEndDisplayingFooterView:(UIView *)view forSection:(NSInteger)section
  217.  {
  218.     if ([HVTableViewDelegate respondsToSelector:@selector(tableView:didEndDisplayingFooterView:forSection:)])
  219.  [HVTableViewDelegate tableView:tableView didEndDisplayingFooterView:view forSection:section];
  220.  }
  221.  - (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section
  222.  {
  223.     if ([HVTableViewDelegate respondsToSelector:@selector(tableView:heightForHeaderInSection:)])
  224.  return [HVTableViewDelegate tableView:tableView heightForHeaderInSection:section];
  225.     return 0;
  226.  }
  227.  
  228.  - (CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section
  229.  {
  230.     if ([HVTableViewDelegate respondsToSelector:@selector(tableView:heightForFooterInSection:)])
  231.  return [HVTableViewDelegate tableView:tableView heightForFooterInSection:section];
  232.     return 0;
  233.  }
  234.  
  235.  - (CGFloat)tableView:(UITableView *)tableView estimatedHeightForRowAtIndexPath:(NSIndexPath *)indexPath NS_AVAILABLE_IOS(7_0)
  236.  {
  237.     if ([HVTableViewDelegate respondsToSelector:@selector(tableView:estimatedHeightForRowAtIndexPath:)])
  238.  return [HVTableViewDelegate tableView:tableView estimatedHeightForRowAtIndexPath:indexPath];
  239.     return 100;
  240.  }
  241.  
  242.  - (CGFloat)tableView:(UITableView *)tableView estimatedHeightForHeaderInSection:(NSInteger)section NS_AVAILABLE_IOS(7_0)
  243.  {
  244.     if ([HVTableViewDelegate respondsToSelector:@selector(tableView:estimatedHeightForHeaderInSection:)])
  245.  return [HVTableViewDelegate tableView:tableView estimatedHeightForHeaderInSection:section];
  246.     return 0;
  247.  }
  248.  
  249.  - (CGFloat)tableView:(UITableView *)tableView estimatedHeightForFooterInSection:(NSInteger)section NS_AVAILABLE_IOS(7_0);
  250.  {
  251.     if ([HVTableViewDelegate respondsToSelector:@selector(tableView:estimatedHeightForFooterInSection:)])
  252.  return [HVTableViewDelegate tableView:tableView estimatedHeightForFooterInSection:section];
  253.     return 0;
  254.  }
  255.  
  256.  - (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
  257.  {
  258.     if ([HVTableViewDelegate respondsToSelector:@selector(tableView:viewForHeaderInSection:)])
  259.  return [HVTableViewDelegate tableView:tableView viewForHeaderInSection:section];
  260.     return nil;
  261.  }
  262.  - (UIView *)tableView:(UITableView *)tableView viewForFooterInSection:(NSInteger)section
  263.  {
  264.     if ([HVTableViewDelegate respondsToSelector:@selector(tableView:viewForFooterInSection:)])
  265.  return [HVTableViewDelegate tableView:tableView viewForFooterInSection:section];
  266.     return nil;
  267.  }
  268.  
  269.  - (void)tableView:(UITableView *)tableView accessoryButtonTappedForRowWithIndexPath:(NSIndexPath *)indexPath
  270.  {
  271.     if ([HVTableViewDelegate respondsToSelector:@selector(tableView:accessoryButtonTappedForRowWithIndexPath:)])
  272.  [HVTableViewDelegate tableView:tableView accessoryButtonTappedForRowWithIndexPath:indexPath];
  273.  }
  274.  
  275.  - (BOOL)tableView:(UITableView *)tableView shouldHighlightRowAtIndexPath:(NSIndexPath *)indexPath
  276.  {
  277.     if ([HVTableViewDelegate respondsToSelector:@selector(tableView:shouldHighlightRowAtIndexPath:)])
  278.  return [HVTableViewDelegate tableView:tableView shouldHighlightRowAtIndexPath:indexPath];
  279.     return YES;
  280.  }
  281.  - (void)tableView:(UITableView *)tableView didHighlightRowAtIndexPath:(NSIndexPath *)indexPath
  282.  {
  283.     if ([HVTableViewDelegate respondsToSelector:@selector(tableView:didHighlightRowAtIndexPath:)])
  284.  [HVTableViewDelegate tableView:tableView didHighlightRowAtIndexPath:indexPath];
  285.  }
  286.  - (void)tableView:(UITableView *)tableView didUnhighlightRowAtIndexPath:(NSIndexPath *)indexPath
  287.  {
  288.     if ([HVTableViewDelegate respondsToSelector:@selector(tableView:didUnhighlightRowAtIndexPath:)])
  289.  [HVTableViewDelegate tableView:tableView didUnhighlightRowAtIndexPath:indexPath];
  290.  }
  291.  - (NSIndexPath *)tableView:(UITableView *)tableView willDeselectRowAtIndexPath:(NSIndexPath *)indexPath
  292.  {
  293.     if ([HVTableViewDelegate respondsToSelector:@selector(tableView:willDeselectRowAtIndexPath:)])
  294.  return [HVTableViewDelegate tableView:tableView willDeselectRowAtIndexPath:indexPath];
  295.     return nil;
  296.  }
  297.  
  298.  - (void)tableView:(UITableView *)tableView didDeselectRowAtIndexPath:(NSIndexPath *)indexPath
  299.  {
  300.     if ([HVTableViewDelegate respondsToSelector:@selector(tableView:didDeselectRowAtIndexPath:)])
  301.  [HVTableViewDelegate tableView:tableView didDeselectRowAtIndexPath:indexPath];
  302.  }
  303.  - (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath
  304.  {
  305.     if ([HVTableViewDelegate respondsToSelector:@selector(tableView:editingStyleForRowAtIndexPath:)])
  306.  return [HVTableViewDelegate tableView:tableView editingStyleForRowAtIndexPath:indexPath];
  307.     return UITableViewCellEditingStyleNone;
  308.  }
  309.  - (NSString *)tableView:(UITableView *)tableView titleForDeleteConfirmationButtonForRowAtIndexPath:(NSIndexPath *)indexPath
  310.  {
  311.     if ([HVTableViewDelegate respondsToSelector:@selector(tableView:titleForDeleteConfirmationButtonForRowAtIndexPath:)])
  312.  return [HVTableViewDelegate tableView:tableView titleForDeleteConfirmationButtonForRowAtIndexPath:indexPath];
  313.     return nil;
  314.  }
  315.  - (BOOL)tableView:(UITableView *)tableView shouldIndentWhileEditingRowAtIndexPath:(NSIndexPath *)indexPath
  316.  {
  317.     if ([HVTableViewDelegate respondsToSelector:@selector(tableView:shouldIndentWhileEditingRowAtIndexPath:)])
  318.  return [HVTableViewDelegate tableView:tableView shouldIndentWhileEditingRowAtIndexPath:indexPath];
  319.     return NO;
  320.  }
  321.  - (void)tableView:(UITableView*)tableView willBeginEditingRowAtIndexPath:(NSIndexPath *)indexPath
  322.  {
  323.     if ([HVTableViewDelegate respondsToSelector:@selector(tableView:willBeginEditingRowAtIndexPath:)])
  324.  [HVTableViewDelegate tableView:tableView willBeginEditingRowAtIndexPath:indexPath];
  325.  }
  326.  - (void)tableView:(UITableView*)tableView didEndEditingRowAtIndexPath:(NSIndexPath *)indexPath
  327.  {
  328.     if ([HVTableViewDelegate respondsToSelector:@selector(tableView:didEndEditingRowAtIndexPath:)])
  329.  [HVTableViewDelegate tableView:tableView didEndEditingRowAtIndexPath:indexPath];
  330.  }
  331.  - (NSIndexPath *)tableView:(UITableView *)tableView targetIndexPathForMoveFromRowAtIndexPath:(NSIndexPath *)sourceIndexPath toProposedIndexPath:(NSIndexPath *)proposedDestinationIndexPath
  332.  {
  333.     if ([HVTableViewDelegate respondsToSelector:@selector(tableView:targetIndexPathForMoveFromRowAtIndexPath:toProposedIndexPath:)])
  334.  return [HVTableViewDelegate tableView:tableView targetIndexPathForMoveFromRowAtIndexPath:sourceIndexPath toProposedIndexPath:proposedDestinationIndexPath];
  335.     return nil;
  336.  }
  337.  - (NSInteger)tableView:(UITableView *)tableView indentationLevelForRowAtIndexPath:(NSIndexPath *)indexPath
  338.  {
  339.     if ([HVTableViewDelegate respondsToSelector:@selector(tableView:indentationLevelForRowAtIndexPath:)])
  340.  return [HVTableViewDelegate tableView:tableView indentationLevelForRowAtIndexPath:indexPath];
  341.     return 0;
  342.  }
  343.  - (BOOL)tableView:(UITableView *)tableView shouldShowMenuForRowAtIndexPath:(NSIndexPath *)indexPath
  344.  {
  345.     if ([HVTableViewDelegate respondsToSelector:@selector(tableView:shouldShowMenuForRowAtIndexPath:)])
  346.  return [HVTableViewDelegate tableView:tableView shouldShowMenuForRowAtIndexPath:indexPath];
  347.     return YES;
  348.  }
  349.  - (BOOL)tableView:(UITableView *)tableView canPerformAction:(SEL)action forRowAtIndexPath:(NSIndexPath *)indexPath withSender:(id)sender
  350.  {
  351.     if ([HVTableViewDelegate respondsToSelector:@selector(tableView:canPerformAction:forRowAtIndexPath:withSender:)])
  352.  return [HVTableViewDelegate tableView:tableView canPerformAction:action forRowAtIndexPath:indexPath withSender:sender];
  353.     return NO;
  354.  }
  355.  - (void)tableView:(UITableView *)tableView performAction:(SEL)action forRowAtIndexPath:(NSIndexPath *)indexPath withSender:(id)sender
  356.  {
  357.     if ([HVTableViewDelegate respondsToSelector:@selector(tableView:performAction:forRowAtIndexPath:withSender:)])
  358.  return [HVTableViewDelegate tableView:tableView performAction:action forRowAtIndexPath:indexPath withSender:sender];
  359.  }
  360.  */
  361.  
  362. -(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
  363. {
  364.     if (self.expandOnlyOneCell)
  365.     {
  366.         if (selectedIndexPath)
  367.             if(selectedIndexPath.row == indexPath.row && selectedIndexPath.section == indexPath.section)
  368.                 return [HVTableViewDelegate tableView:tableView heightForRowAtIndexPath:indexPath isExpanded:YES];
  369.  
  370.         return [HVTableViewDelegate tableView:tableView heightForRowAtIndexPath:indexPath isExpanded:NO];
  371.     }
  372.     else
  373.     {
  374.         BOOL alreadyExpanded = NO;
  375.         NSIndexPath* correspondingIndexPath;
  376.         for (NSIndexPath* anIndexPath in expandedIndexPaths) {
  377.             if (anIndexPath.row == indexPath.row && anIndexPath.section == indexPath.section)
  378.             {alreadyExpanded = YES; correspondingIndexPath = anIndexPath;}
  379.         }
  380.         if (alreadyExpanded)
  381.             return [HVTableViewDelegate tableView:tableView heightForRowAtIndexPath:indexPath isExpanded:YES];
  382.         else
  383.             return [HVTableViewDelegate tableView:tableView heightForRowAtIndexPath:indexPath isExpanded:NO];
  384.     }
  385. }
  386.  
  387. -(NSIndexPath *)tableView:(UITableView *)tableView willSelectRowAtIndexPath:(NSIndexPath *)indexPath
  388. {
  389.     return indexPath;
  390. }
  391.  
  392. -(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
  393. {
  394.     // 更新代理,让外面的tableView也可以使用
  395.     if (self.HVTableViewDelegate && [self.HVTableViewDelegate respondsToSelector:@selector(tableView:didSelectRowAtIndexPath:)]) {
  396.         [self.HVTableViewDelegate tableView:tableView didSelectRowAtIndexPath:indexPath];
  397.     }
  398.  
  399.     if (self.expandOnlyOneCell)
  400.     {
  401.         if (selectedIndexPath)
  402.             if (selectedIndexPath.row != - && selectedIndexPath.row != -) //collapse the last expanded item (if any)
  403.             {
  404.                 BOOL dontExpandNewCell = NO;
  405.                 if (selectedIndexPath.row == indexPath.row && selectedIndexPath.section == indexPath.section)
  406.                     dontExpandNewCell = YES;
  407.  
  408.                 NSIndexPath* tmp = [NSIndexPath indexPathForRow:selectedIndexPath.row inSection:selectedIndexPath.section];//tmp now holds the last expanded item
  409.                 selectedIndexPath = [NSIndexPath indexPathForRow:- inSection:];
  410.  
  411.                 actionToTake = -;
  412.  
  413.                 [tableView beginUpdates];
  414.                 [tableView reloadRowsAtIndexPaths:[NSArray arrayWithObject:tmp] withRowAnimation:UITableViewRowAnimationAutomatic];
  415.                 [tableView endUpdates];
  416.  
  417.                 if (dontExpandNewCell) return; //the same expanded cell was touched and now I collapsed it. No new cell is touched
  418.             }
  419.  
  420.         actionToTake = ;
  421.         ///expand the new touched item
  422.  
  423.         selectedIndexPath = indexPath;
  424.         [tableView beginUpdates];
  425.         [tableView reloadRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationAutomatic];
  426.         [tableView endUpdates];
  427.         if (self.enableAutoScroll)
  428.             [tableView scrollToRowAtIndexPath:indexPath atScrollPosition:UITableViewScrollPositionMiddle animated:YES];
  429.  
  430.     }
  431.     else
  432.     {
  433.         BOOL alreadyExpanded = NO;
  434.         NSIndexPath* correspondingIndexPath;
  435.         for (NSIndexPath* anIndexPath in expandedIndexPaths) {
  436.             if (anIndexPath.row == indexPath.row && anIndexPath.section == indexPath.section)
  437.             {alreadyExpanded = YES; correspondingIndexPath = anIndexPath;}
  438.         }
  439.  
  440.         if (alreadyExpanded)////collapse it!
  441.         {
  442.             actionToTake = -;
  443.             [expandedIndexPaths removeObject:correspondingIndexPath];
  444.             [tableView beginUpdates];
  445.             [tableView reloadRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationAutomatic];
  446.             [tableView endUpdates];
  447.         }
  448.         else ///expand it!
  449.         {
  450.             actionToTake = ;
  451.             [expandedIndexPaths addObject:indexPath];
  452.             [tableView beginUpdates];
  453.             //            [tableView reloadRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationAutomatic];
  454.             [tableView endUpdates];
  455.             if (self.enableAutoScroll)
  456.                 [tableView scrollToRowAtIndexPath:indexPath atScrollPosition:UITableViewScrollPositionMiddle animated:YES];
  457.         }
  458.     }
  459. }
  460.  
  461. /*
  462.  // Only override drawRect: if you perform custom drawing.
  463.  // An empty implementation adversely affects performance during animation.
  464.  - (void)drawRect:(CGRect)rect
  465.  {
  466.  // Drawing code
  467.  }
  468.  */
  469.  
  470. @end

针对源码修改过的地方:

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