xCode - UITableView compacted - ios

Question

i have a table view with section and i would like to start the table view with all section grouped like this:
Section1
Section2
Section3
When i tap on a section title, it expand the rows
Section1
Row1
Row2
Row3
Section2
Section3

Answer 1

i requested to all please see the answer if you dont like,just comment
this is for beginners....
this code also refered from net only and i changed few things
this link
creat class file...
ViewController.h file should be
#import <UIKit/UIKit.h>
#import "oneViewController.h"
#import "secondViewController.h"
#import "thirdViewController.h"
#interface ViewController : UIViewController
{
oneViewController *one;
secondViewController *second;
thirdViewController *third;
}
#end
ViewController.m file should be
#import "ViewController.h"
#import "Cell1.h"
#import "Cell2.h"
#interface ViewController()<UITableViewDataSource,UITableViewDelegate>
{
NSMutableArray *dataList;
}
#property (assign)BOOL isOpen;
#property (nonatomic,retain)NSIndexPath *selectIndex;
#property (nonatomic,retain)IBOutlet UITableView *expansionTableView;
#end
#implementation ViewController
#synthesize isOpen,selectIndex;
- (void)dealloc
{
[dataList release];
dataList= nil;
self.expansionTableView = nil;
self.isOpen = NO;
self.selectIndex = nil;
[super dealloc];
}
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nil];
if (self) {
one=[[oneViewController alloc]init ];
second=[[secondViewController alloc]init];
third=[[thirdViewController alloc]init];
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
NSString *path = [[NSBundle mainBundle] pathForResource:#"array" ofType:#"plist"];
dataList = [[NSMutableArray alloc] initWithContentsOfFile:path];
NSLog(#"%lu",(unsigned long)dataList.count);
self.expansionTableView.sectionFooterHeight = 0;
self.expansionTableView.sectionHeaderHeight = 0;
self.isOpen = NO;
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return [dataList count];
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
if (self.isOpen) {
if (self.selectIndex.section == section) {
return [[[dataList objectAtIndex:section] objectForKey:#"list"] count]+1;
}
}
return 1;
}
- (float)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
return 40;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSLog(#"%#",[[dataList objectAtIndex:indexPath.section]objectForKey:#"list"] );
if (self.isOpen&&indexPath.section == indexPath.section&&indexPath.row!=0) {
static NSString *CellIdentifier = #"Cell2";
Cell2 *cell = (Cell2*)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (!cell) {
cell = [[[NSBundle mainBundle] loadNibNamed:CellIdentifier owner:self options:nil] objectAtIndex:0];
}
if ([[dataList objectAtIndex:indexPath.section]objectForKey:#"list"])
{
NSArray *list = [[dataList objectAtIndex:indexPath.section] objectForKey:#"list"];
cell.titleLabel.text = [list objectAtIndex:indexPath.row-1];
[cell setAccessoryType:UITableViewCellAccessoryDisclosureIndicator];
return cell;
}
return cell;
}else
{
static NSString *CellIdentifier = #"Cell1";
Cell1 *cell = (Cell1*)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (!cell) {
cell = [[[NSBundle mainBundle] loadNibNamed:CellIdentifier owner:self options:nil] objectAtIndex:0];
}
NSString *name = [[dataList objectAtIndex:indexPath.section] objectForKey:#"name"];
cell.titleLabel.text = name;
//[cell changeArrowWithUp:([indexPath isEqual:indexPath]?YES:NO)];
if ([indexPath isEqual:indexPath])
{
[cell changeArrowWithUp:YES];
}
else
{
[cell changeArrowWithUp:NO];
}
return cell;
}
}
#pragma mark - Table view delegate
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
if (indexPath.row == 0) {
if ([indexPath isEqual:self.selectIndex]) {
Cell1 *cell = (Cell1 *)[self.expansionTableView cellForRowAtIndexPath:self.selectIndex];
[cell changeArrowWithUp:YES];
self.isOpen = NO;
[self didSelectCellRowFirstDo:NO nextDo:NO];
self.selectIndex = nil;
}else
{
if (!self.selectIndex) {
self.selectIndex = indexPath;
[self didSelectCellRowFirstDo:YES nextDo:NO];
Cell1 *cell = (Cell1 *)[self.expansionTableView cellForRowAtIndexPath:self.selectIndex];
[cell changeArrowWithUp:NO];
}else
{
NSIndexPath *tempIndex=indexPath;
if (tempIndex)
{
Cell1 *cell = (Cell1 *)[self.expansionTableView cellForRowAtIndexPath:tempIndex];
[cell changeArrowWithUp:NO];
}
Cell1 *cell = (Cell1 *)[self.expansionTableView cellForRowAtIndexPath:self.selectIndex];
[cell changeArrowWithUp:YES];
[self didSelectCellRowFirstDo:NO nextDo:YES];
}
}
}else
{
NSDictionary *dic = [dataList objectAtIndex:indexPath.section];
NSArray *list = [dic objectForKey:#"list"];
NSString *item = [list objectAtIndex:indexPath.row-1];
UIAlertView *alert=[[UIAlertView alloc]initWithTitle:#"sample tree" message:item delegate:self cancelButtonTitle:#"ok" otherButtonTitles:nil];
[alert show];
// NSArray* temp=[NSArray arrayWithObjects:one,second,third,nil];
// [self viewPresent:[temp objectAtIndex:indexPath.row-1] sectionAt:item];
}
[tableView deselectRowAtIndexPath:indexPath animated:YES];
}
//method for pushing view controller
-(void)viewPresent:(UIViewController *)viewName sectionAt:(NSString *)sectionValue
{
[[self navigationController]pushViewController:viewName animated:YES];
}
- (void)didSelectCellRowFirstDo:(BOOL)firstDoInsert nextDo:(BOOL)nextDoInsert
{
self.isOpen = firstDoInsert;
[self.expansionTableView beginUpdates];
int section = self.selectIndex.section;
int contentCount = [[[dataList objectAtIndex:section] objectForKey:#"list"] count];
NSMutableArray* rowToInsert = [[NSMutableArray alloc] init];
for (NSUInteger i = 1; i < contentCount + 1; i++) {
NSIndexPath* indexPathToInsert = [NSIndexPath indexPathForRow:i inSection:section];
[rowToInsert addObject:indexPathToInsert];
}
if (firstDoInsert)
{ [self.expansionTableView insertRowsAtIndexPaths:rowToInsert withRowAnimation:UITableViewRowAnimationTop];
}
else
{
[self.expansionTableView deleteRowsAtIndexPaths:rowToInsert withRowAnimation:UITableViewRowAnimationTop];
}
[rowToInsert release];
[self.expansionTableView endUpdates];
if (nextDoInsert) {
self.isOpen = YES;
self.selectIndex = [self.expansionTableView indexPathForSelectedRow];
[self didSelectCellRowFirstDo:YES nextDo:NO];
}
// if (self.isOpen) [self.expansionTableView scrollToNearestSelectedRowAtScrollPosition:UITableViewScrollPositionMiddle animated:YES];
}
#end
then create two cell with subclass of UITableViewCell
the first cell should be
.h file
#import <UIKit/UIKit.h>
#interface Cell1 : UITableViewCell
#property (nonatomic,retain)IBOutlet UILabel *titleLabel;
#property (nonatomic,retain)IBOutlet UIImageView *arrowImageView;
- (void)indication:(BOOL)up;
#end
.m file
#import "Cell1.h"
#implementation Cell1
#synthesize titleLabel,arrowImageView;
- (void)dealloc
{
self.titleLabel = nil;
self.arrowImageView = nil;
[super dealloc];
}
- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
if (self) {
// Initialization code
}
return self;
}
- (void)setSelected:(BOOL)selected animated:(BOOL)animated
{
[super setSelected:selected animated:animated];
// Configure the view for the selected state
}
- (void)indication:(BOOL)up
{
if (up) {
self.arrowImageView.image = [UIImage imageNamed:#"UpAccessory.png"];
}else
{
self.arrowImageView.image = [UIImage imageNamed:#"DownAccessory.png"];
}
}
the second cell should be
.h file
#import <UIKit/UIKit.h>
#interface Cell2 : UITableViewCell
#property (nonatomic,retain)IBOutlet UILabel *titleLabel;
#end
.m file
#import "Cell2.h"
#implementation Cell2
#synthesize titleLabel;
- (void)dealloc
{
self.titleLabel = nil;
[super dealloc];
}
- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
if (self) {
// Initialization code
}
return self;
}
- (void)setSelected:(BOOL)selected animated:(BOOL)animated
{
[super setSelected:selected animated:animated];
// Configure the view for the selected state
}
for learning purpose my values are like below
(
{
list = (
1,
2,
3
);
name = Numbers;
},
{
list = (
a,
b,
c
);
name = Alaphabets;
},
{
list = (
India,
China,
Australia
);
name = Countries;
}
)