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Add the delegate:STCollapseTableViewDelegate to handle header tapping ev... #12

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13 changes: 12 additions & 1 deletion Demo/STCollapseTableViewDemo/STCollapseTableViewDemo/ViewController.m
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Original file line number Diff line number Diff line change
Expand Up @@ -10,7 +10,7 @@

#import "STCollapseTableView.h"

@interface ViewController () <UITableViewDataSource, UITableViewDelegate>
@interface ViewController () <UITableViewDataSource, UITableViewDelegate, STCollapseTableViewDelegate>

@property (weak, nonatomic) IBOutlet STCollapseTableView *tableView;

Expand Down Expand Up @@ -74,6 +74,7 @@ - (void)viewDidLoad
{
[super viewDidLoad];

self.tableView.headerViewTapDelegate = self;
[self.tableView reloadData];
[self.tableView openSection:0 animated:NO];
}
Expand Down Expand Up @@ -122,4 +123,14 @@ - (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger
return [self.headers objectAtIndex:section];
}

- (void)STCollapseTableView:(STCollapseTableView *)STCollapseTableView didSelectHeaderViewAtSection:(NSInteger)section
{
[[[UIAlertView alloc] initWithTitle:@""
message:[NSString stringWithFormat:@"headerView %ld tapped",section]
delegate:nil
cancelButtonTitle:@"OK"
otherButtonTitles:nil, nil]
show];
}

@end
11 changes: 10 additions & 1 deletion README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -41,8 +41,17 @@ As you might have seen, your headers automatically toggle theirs section on a ta
This is automatically done for you in three conditions:
* Your datasource implements the `tableView:heightForHeaderInSection:` method
* The returned views haven't any UITapGestureRecognizer.
* the STCollapseTableView property `shouldHandleHeadersTap` is YES (which is the default value).
* the STCollapseTableView property `shouldHandleHeadersTap` is YES (which is the default value).

----
```
@property (nonatomic, weak) id<STCollapseTableViewDelegate> headerViewTapDelegate;
```
Just as the name, the herderViewTapDelegate is designed to handle hederViews tapping events, you can do things in the delegate method when a specified headerView tapped:

```
- (void)STCollapseTableView:(STCollapseTableView *)STCollapseTableView didSelectHeaderViewAtSection:(NSInteger)section;
```
## Installation

To include this component in your project, I recommend you to use [Cocoapods](http://cocoapods.org):
Expand Down
11 changes: 11 additions & 0 deletions STCollapseTableView/STCollapseTableView.h
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,15 @@
***********************************************************************************/

#import <UIKit/UIKit.h>
@class STCollapseTableView;

@protocol STCollapseTableViewDelegate <NSObject>

@optional

- (void)STCollapseTableView:(STCollapseTableView *)STCollapseTableView didSelectHeaderViewAtSection:(NSInteger)section;

@end

/**
* STCollapseTableView is a UITableView subclass that automatically collapse and/or expand your sections.
Expand Down Expand Up @@ -86,4 +95,6 @@
*/
- (BOOL)isOpenSection:(NSUInteger)sectionIndex;

@property (nonatomic, weak) id<STCollapseTableViewDelegate> headerViewTapDelegate;

@end
153 changes: 79 additions & 74 deletions STCollapseTableView/STCollapseTableView.m
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Original file line number Diff line number Diff line change
Expand Up @@ -34,64 +34,64 @@

@interface STCollapseTableView () <UITableViewDataSource, UITableViewDelegate>

@property (nonatomic, assign) id<UITableViewDataSource> collapseDataSource;
@property (nonatomic, assign) id<UITableViewDelegate> collapseDelegate;
@property (nonatomic, strong) NSMutableArray* sectionsStates;
@property (nonatomic, weak) id<UITableViewDataSource> collapseDataSource;
@property (nonatomic, weak) id<UITableViewDelegate> collapseDelegate;
@property (nonatomic, strong) NSMutableArray *sectionsStates;

@end

@implementation STCollapseTableView

- (id)initWithCoder:(NSCoder *)aDecoder
{
self = [super initWithCoder:aDecoder];
if (self)
self = [super initWithCoder:aDecoder];
if (self)
{
[self setupCollapseTableView];
}
return self;
[self setupCollapseTableView];
}
return self;
}

- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self)
self = [super initWithFrame:frame];
if (self)
{
[self setupCollapseTableView];
}
return self;
[self setupCollapseTableView];
}
return self;
}

- (id)initWithFrame:(CGRect)frame style:(UITableViewStyle)style
{
self = [super initWithFrame:frame style:style];
if (self)
self = [super initWithFrame:frame style:style];
if (self)
{
[self setupCollapseTableView];
}
return self;
[self setupCollapseTableView];
}
return self;
}

- (void)setupCollapseTableView
{
self.exclusiveSections = YES;
self.exclusiveSections = YES;
self.shouldHandleHeadersTap = YES;
self.sectionsStates = [[NSMutableArray alloc] init];
self.sectionsStates = [[NSMutableArray alloc] init];
}

- (void)setDataSource:(id <UITableViewDataSource>)newDataSource
{
if (newDataSource != self.collapseDataSource)
if (newDataSource && newDataSource != self.collapseDataSource)
{
self.collapseDataSource = newDataSource;
[self.sectionsStates removeAllObjects];
[super setDataSource:self.collapseDataSource?self:nil];
}
self.collapseDataSource = newDataSource;
[self.sectionsStates removeAllObjects];
[super setDataSource:self.collapseDataSource?self:nil];
}
}

- (void)setDelegate:(id<UITableViewDelegate>)newDelegate
{
if (newDelegate != self.collapseDelegate)
if (newDelegate && newDelegate != self.collapseDelegate)
{
self.collapseDelegate = newDelegate;
[super setDelegate:self.collapseDelegate?self:nil];
Expand All @@ -100,15 +100,15 @@ - (void)setDelegate:(id<UITableViewDelegate>)newDelegate

- (id)forwardingTargetForSelector:(SEL)aSelector
{
if ([self.collapseDataSource respondsToSelector:aSelector])
if ([self.collapseDataSource respondsToSelector:aSelector])
{
return self.collapseDataSource;
}
return self.collapseDataSource;
}
if ([self.collapseDelegate respondsToSelector:aSelector])
{
return self.collapseDelegate;
}
return nil;
return nil;
}

- (BOOL)respondsToSelector:(SEL)aSelector
Expand All @@ -118,7 +118,7 @@ - (BOOL)respondsToSelector:(SEL)aSelector
return [self.collapseDelegate respondsToSelector:aSelector];
}

return [super respondsToSelector:aSelector] || [self.collapseDataSource respondsToSelector:aSelector] || [self.collapseDelegate respondsToSelector:aSelector];
return [super respondsToSelector:aSelector] || [self.collapseDataSource respondsToSelector:aSelector] || [self.collapseDelegate respondsToSelector:aSelector];
}

- (void)openSection:(NSUInteger)sectionIndex animated:(BOOL)animated
Expand All @@ -132,16 +132,16 @@ - (void)openSection:(NSUInteger)sectionIndex animated:(BOOL)animated
{
return;
}
if (self.exclusiveSections)
if (self.exclusiveSections)
{
NSUInteger openedSection = [self openedSection];

[self setSectionAtIndex:sectionIndex open:YES];
[self setSectionAtIndex:openedSection open:NO];
[self setSectionAtIndex:sectionIndex open:YES];
[self setSectionAtIndex:openedSection open:NO];

if(animated)
{
{
NSArray* indexPathsToInsert = [self indexPathsForRowsInSectionAtIndex:sectionIndex];
NSArray* indexPathsToDelete = [self indexPathsForRowsInSectionAtIndex:openedSection];

Expand All @@ -168,31 +168,31 @@ - (void)openSection:(NSUInteger)sectionIndex animated:(BOOL)animated
{
[self reloadData];
}
}
}
else
{
[self setSectionAtIndex:sectionIndex open:YES];
if (animated)
[self setSectionAtIndex:sectionIndex open:YES];
if (animated)
{
NSArray* indexPathsToInsert = [self indexPathsForRowsInSectionAtIndex:sectionIndex];
[self insertRowsAtIndexPaths:indexPathsToInsert withRowAnimation:UITableViewRowAnimationTop];
[self insertRowsAtIndexPaths:indexPathsToInsert withRowAnimation:UITableViewRowAnimationFade];
}
else
{
[self reloadData];
}
}
}
}

- (void)closeSection:(NSUInteger)sectionIndex animated:(BOOL)animated
{
[self setSectionAtIndex:sectionIndex open:NO];
if (animated)
if (animated)
{
NSArray* indexPathsToDelete = [self indexPathsForRowsInSectionAtIndex:sectionIndex];
[self deleteRowsAtIndexPaths:indexPathsToDelete withRowAnimation:UITableViewRowAnimationTop];
[self deleteRowsAtIndexPaths:indexPathsToDelete withRowAnimation:NO];
}
else
{
Expand All @@ -204,28 +204,28 @@ - (void)toggleSection:(NSUInteger)sectionIndex animated:(BOOL)animated
{
if (sectionIndex >= [self.sectionsStates count])
{
return;
}
BOOL sectionIsOpen = [[self.sectionsStates objectAtIndex:sectionIndex] boolValue];
if (sectionIsOpen)
return;
}
BOOL sectionIsOpen = [[self.sectionsStates objectAtIndex:sectionIndex] boolValue];
if (sectionIsOpen)
{
[self closeSection:sectionIndex animated:animated];
}
[self closeSection:sectionIndex animated:animated];
}
else
{
[self openSection:sectionIndex animated:animated];
}
[self openSection:sectionIndex animated:animated];
}
}

- (BOOL)isOpenSection:(NSUInteger)sectionIndex
{
if (sectionIndex >= [self.sectionsStates count])
{
return NO;
}
return [[self.sectionsStates objectAtIndex:sectionIndex] boolValue];
return NO;
}
return [[self.sectionsStates objectAtIndex:sectionIndex] boolValue];
}

- (void)setExclusiveSections:(BOOL)exclusiveSections
Expand Down Expand Up @@ -262,41 +262,41 @@ - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(N

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
if ([[self.sectionsStates objectAtIndex:section] boolValue])
if ([[self.sectionsStates objectAtIndex:section] boolValue])
{
return [self.collapseDataSource tableView:tableView numberOfRowsInSection:section];
}
return 0;
return [self.collapseDataSource tableView:tableView numberOfRowsInSection:section];
}
return 0;
}

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
int nbSection = [self.collapseDataSource numberOfSectionsInTableView:tableView];
int nbSection = (int)[self.collapseDataSource numberOfSectionsInTableView:tableView];

while (nbSection < [self.sectionsStates count])
while (nbSection < [self.sectionsStates count])
{
[self.sectionsStates removeLastObject];
}
[self.sectionsStates removeLastObject];
}

while (nbSection > [self.sectionsStates count])
while (nbSection > [self.sectionsStates count])
{
[self.sectionsStates addObject:@NO];
}
[self.sectionsStates addObject:@NO];
}

return nbSection;
return nbSection;
}

#pragma mark - Delegate

- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
{
UIView* view = [self.collapseDelegate tableView:tableView viewForHeaderInSection:section];
UIView *view = [self.collapseDelegate tableView:tableView viewForHeaderInSection:section];

if (self.shouldHandleHeadersTap)
{
NSArray* gestures = view.gestureRecognizers;
NSArray *gestures = view.gestureRecognizers;
BOOL tapGestureFound = NO;
for (UIGestureRecognizer* gesture in gestures)
for (UIGestureRecognizer *gesture in gestures)
{
if ([gesture isKindOfClass:[UITapGestureRecognizer class]])
{
Expand All @@ -307,9 +307,9 @@ - (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger

if (!tapGestureFound)
{
[view setTag:section];
[view addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTapGesture:)]];
}
[view setTag:section];
}

return view;
Expand All @@ -322,6 +322,11 @@ - (void)handleTapGesture:(UITapGestureRecognizer*)tap
NSInteger index = tap.view.tag;
if (index >= 0)
{
if([self.headerViewTapDelegate respondsToSelector:@selector(STCollapseTableView:didSelectHeaderViewAtSection:)])
{
[self.headerViewTapDelegate STCollapseTableView:self didSelectHeaderViewAtSection:index];
}

[self toggleSection:(NSUInteger)index animated:YES];
}
}
Expand Down