Going from Table View to Different Detail Views in xcode - ios

I'm a beginning programmer. And I had a question.
I currently have a Table View in my app. There are three rows to it, History, Theory, and Applied Use. I would like each one to go to a different detail view. However, each one only clicks to one of the detail views.
I think the issue is at
didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
DetailViewController *dvController = [[DetailViewController alloc] initWithNibName:#"Magnets_AU_Aubrey" bundle:[
Please help any. The three XIB's are Magnets_AU_Aubrey, Magnets_History_Aubrey, and Magnets_Theory_Aubrey
#import "DisclosureButtonController.h"
#import "NavAppDelegate.h"
#import "DisclosureDetailController.h"
#import "DetailViewController.h"
#implementation DisclosureButtonController
#synthesize list;
- (void)viewDidLoad {
NSArray *array = [[NSArray alloc] initWithObjects:#"History", #"Theory", #"Applied Use", nil];
self.list = array;
[array release];
[super viewDidLoad];
}
- (void)viewDidUnload {
self.list = nil;
[childController release], childController = nil;
}
- (void)dealloc {
[list release];
[childController release];
[super dealloc];
}
#pragma mark -
#pragma mark Table Data Source Methods
- (NSInteger)tableView:(UITableView *)tableView
numberOfRowsInSection:(NSInteger)section {
return [list count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString * DisclosureButtonCellIdentifier =
#"DisclosureButtonCellIdentifier";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:
DisclosureButtonCellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc]
initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:DisclosureButtonCellIdentifier] autorelease];
}
NSUInteger row = [indexPath row];
NSString *rowString = [list objectAtIndex:row];
cell.textLabel.text = rowString;
cell.accessoryType = UITableViewCellAccessoryDetailDisclosureButton;
[rowString release];
return cell;
}
#pragma mark -
#pragma mark Table Delegate Methods
- (void)tableView:(UITableView *)tableView
didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
DetailViewController *dvController = [[DetailViewController alloc] initWithNibName:#"Magnets_AU_Aubrey" bundle:[
NSBundle mainBundle]];
[self.navigationController pushViewController:dvController animated:YES];
[dvController release];
dvController = nil;
}
- (void)tableView:(UITableView *)tableView
accessoryButtonTappedForRowWithIndexPath:(NSIndexPath *)indexPath {
if (childController == nil) {
childController = [[DisclosureDetailController alloc] initWithNibName:#"MagnetsAubreyCreditsDisclosureDetail" bundle:nil];
}
childController.title = #"Disclosure Button Pressed";
NSUInteger row = [indexPath row];
NSString *selectedMovie = [list objectAtIndex:row];
NSString *detailMessage = [[NSString alloc]
initWithFormat:#"School",selectedMovie];
childController.message = detailMessage;
childController.title = selectedMovie;
[detailMessage release];
[self.navigationController pushViewController:childController animated:YES];
}
#end

NSArray *array = [[NSArray alloc] initWithObjects:#"History", #"Theory", #"Applied Use", nil];
Now do the same for xibs. Create array and fill it with xib names. Then in didSelectRowAtIndexPath to get correct xib name apply the same logic as you do in cellForRowAtIndexPath for getting cell text.

Related

Repopulate TableView with new data

I have new data that I wish to put in my tableView, can you please help me with this. Currently mt table is populated with greekLetters and imageNames. On button click I wish to put new data in the table: greekLetters2
#interface ViewController2 ()
#end
#implementation ViewController2
- (void)viewDidLoad {
[super viewDidLoad];
self.greekLetters = #[#"BigBen",#"Colosseum",#"EiffelTower",#"GreatWallOfChina",#"StatueofLiberty",#"StBasils",#"Stonehenge",#"TajMahal",#"TowerOfPisa"];
self.imageNames = #[#"BigBen.jpg",#"Colosseum.jpg",#"EiffelTower.jpg",#"GreatWallOfChina.jpeg",#"StatueofLiberty.jpg",#"StBasils.jpg",#"Stonehenge.jpg",#"TajMahal.jpg",#"TowerOfPisa.jpg"];
self.greekLetters2 = #[#"BigBen2",#"Colosseum2",#"EiffelTower2",#"GreatWallOfChina2",#"StatueofLiberty2",#"StBasils2",#"Stonehenge2",#"TajMahal2",#"TowerOfPisa2"];
self.imageNames2 = #[#"BigBen2.jpg",#"Colosseum2.jpg",#"EiffelTower2.jpg",#"GreatWallOfChina2.jpeg",#"StatueofLiberty.jpg",#"StBasils2.jpg",#"Stonehenge2.jpg",#"TajMahal2.jpg",#"TowerOfPisa2.jpg"];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
return [self.greekLetters count];
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *SimpleIdentifier = #"SimpleIdentifier";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:SimpleIdentifier];
if (cell == nil)
{
cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:SimpleIdentifier];
}
UIImage *image = [UIImage imageNamed:self.imageNames[indexPath.row]];
cell.imageView.image = image;
cell.textLabel.text = self.greekLetters[indexPath.row];
cell.textLabel.font = [UIFont boldSystemFontOfSize:30];
if (indexPath.row < 3)
{
cell.detailTextLabel.text = #"A";
}
else
{
cell.detailTextLabel.text = #"B";
}
return cell;
}
-(NSIndexPath *)tableView:(UITableView *)tableView willSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
if (indexPath.row == 0)
{
return nil;
}
else
{
return indexPath;
}
}
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *rowValue = self.greekLetters[indexPath.row];
NSString *message = [[NSString alloc] initWithFormat:#"You selsected %#!",rowValue];
UIAlertView *alert = [[UIAlertView alloc]initWithTitle:#"Row Selected" message:message delegate:nil cancelButtonTitle:#"Yes" otherButtonTitles:nil, nil];
[alert show];
[tableView deselectRowAtIndexPath:indexPath animated:YES];
}
-(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
return 70;
}
- (IBAction)SwitchTable:(id)sender
{
//repapulate
}
#end
The easiest way is to switch the two array when the button is pressed. greekLetters has to became greekLetters2 and viceversa. Then, simply reload the tableview data.
-(IBAction)SwitchTable:(id)sender {
NSArray *temp = [NSArray arrayFromArray:greekLetters];
greekLetters = [NSArray arrayFromArray:greekLetters2];
greekLetters2 = [NSArray arrayFromArray:temp];
[tableview reloadData];
}
Just have one nsmutablearray which will drive your tableview. If your greekLetters array would be nsmutablearray you would update it and then reload your tableview:
[self.greekLetters addObjectsFromArray:self.greekLetters2];
[self.tableView reloadData];
Fallow these two tutorials and they will guide you in achieving what you are looking for:
- https://www.youtube.com/watch?v=gT8ncroYdDw
- https://www.youtube.com/watch?v=NHzm-D9VsQA

Protocol not implemented in 'AllListsViewController.m'; other errors

Am having protocol errors in AllListsViewController.m, but can't figure out why. Also have some other errors which I have commented out.
AllListsViewController.m
#import "AllListsViewController.h"
#import "ChecklistViewController.h"
#import "Checklist.h"
#import "ChecklistItem.h"
#interface AllListsViewController ()
#end
#implementation AllListsViewController
/* Method 'listDetailViewController:didFinishAddingChecklist' in protocol not implemented
Method 'listDetailViewController:didFinishEditingChecklist' in protocol not implemented
Method 'listDetailViewControllerDidCancel:' in protocol not implemented
*/
{
NSMutableArray *_lists;
}
-(NSString *)documentsDirectory
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths firstObject];
return documentsDirectory;
}
-(NSString *)dataFilePath
{
return [[self documentsDirectory] stringByAppendingPathComponent:#"Checklists.plist"];
}
-(void)saveChecklistItems
{
NSMutableData *data = [[NSMutableData alloc] init];
NSKeyedArchiver *archiver = [[NSKeyedArchiver alloc] initForWritingWithMutableData:data];
[archiver encodeObject:_lists forKey:#"Checklists"];
[archiver finishEncoding];
[data writeToFile:[self dataFilePath] atomically:YES];
}
-(void)loadChecklists
{
NSString *path = [self dataFilePath];
if ([[NSFileManager defaultManager] fileExistsAtPath:path]) {
NSData *data = [[NSData alloc] initWithContentsOfFile:path];
NSKeyedUnarchiver *unarchiver = [[NSKeyedUnarchiver alloc] initForReadingWithData:data];
_lists = [unarchiver decodeObjectForKey:#"Checklists"];
[unarchiver finishDecoding];
} else {
_lists = [[NSMutableArray alloc] initWithCapacity:20];
}
}
-(id)initWithCoder:(NSCoder *)aDecoder
{
if ((self = [super initWithCoder:aDecoder])) {
_lists = [[NSMutableArray alloc] initWithCapacity:20];
Checklist *list;
list = [[Checklist alloc] init];
list.name = #"Birthdays";
[_lists addObject:list];
list = [[Checklist alloc] init];
list.name = #"Groceries";
[_lists addObject:list];
list = [[Checklist alloc] init];
list.name = #"Cool Apps";
[_lists addObject:list];
list = [[Checklist alloc] init];
list.name = #"To Do";
[_lists addObject:list];
for (Checklist *list in _lists) {
ChecklistItem *item = [[ChecklistItem alloc] init];
item.text = [NSString stringWithFormat:#"Item for %#", list.name];
[list.items addObject:item];
[self loadChecklists];
}
return self;
}
- (void)viewDidLoad // Use of undeclared identifier 'viewDidLoad'
{
[super viewDidLoad];
// Uncomment the following line to preserve selection between presentations.
// self.clearsSelectionOnViewWillAppear = NO;
// Uncomment the following line to display an Edit button in the navigation bar for this view controller.
// self.navigationItem.rightBarButtonItem = self.editButtonItem;
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#pragma mark - Table view data source
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
// Return the number of rows in the section.
return [_lists count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
// Configure the cell...
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:CellIdentifier];
}
Checklist *checklist = _lists[indexPath.row];
cell.textLabel.text = checklist.name;
cell.accessoryType = UITableViewCellAccessoryDetailDisclosureButton;
return cell;
}
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
Checklist *checklist = _lists[indexPath.row];
[self performSegueWithIdentifier:#"ShowChecklist" sender:checklist];
}
#pragma mark - Table View Delegate Protocol
/*
// Override to support conditional editing of the table view.
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
// Return NO if you do not want the specified item to be editable.
return YES;
}
*/
// Override to support editing the table view.
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
[_lists removeObjectAtIndex:indexPath.row];
NSArray *indexPaths = #[indexPath];
[tableView deleteRowsAtIndexPaths:indexPaths withRowAnimation:UITableViewRowAnimationAutomatic];
}
/*
// Override to support rearranging the table view.
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath
{
}
*/
/*
// Override to support conditional rearranging of the table view.
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath
{
// Return NO if you do not want the item to be re-orderable.
return YES;
}
*/
#pragma mark - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if ([segue.identifier isEqualToString:#"ShowChecklist"]) {
ChecklistViewController *controller = segue.destinationViewController;
controller.checklist = sender;
}
else if ([segue.identifier isEqualToString:#"AddChecklist"]) {
UINavigationController *navigationController = segue.destinationViewController;
ListDetailViewController *controller = (ListDetailViewController *)navigationController.topViewController;
controller.delegate = self;
controller.checklistToEdit = nil;
}
}
-(void)listDetailViewControllerDidCancel:(ListDetailViewController *)controller
{
[self dismissViewControllerAnimated:YES completion:nil];
}
-(void)listDetailViewController:(ListDetailViewController *)controller didFinishAddingChecklist:(Checklist *)checklist
{
NSInteger newRowIndex = [_lists count];
[_lists addObject:checklist];
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:newRowIndex inSection:0];
NSArray *indexPaths = #[indexPath];
[self.tableView insertRowsAtIndexPaths:indexPaths withRowAnimation:UITableViewRowAnimationAutomatic];
[self dismissViewControllerAnimated:YES completion:nil];
}
-(void)listDetailViewController:(ListDetailViewController *)controller didFinishEditingChecklist:(Checklist *)checklist
{
NSInteger index = [_lists indexOfObject:checklist];
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:index inSection:0];
UITableViewCell *cell = [self.tableView cellForRowAtIndexPath:indexPath];
cell.textLabel.text = checklist.name;
[self dismissViewControllerAnimated:YES completion:nil];
}
-(void)tableView:(UITableView *)tableView accessoryButtonTappedForRowWithIndexPath:(NSIndexPath *)indexPath
{
UINavigationController *navigationController = [self.storyboard instantiateViewControllerWithIdentifier:#"ListNavigationController"];
ListDetailViewController *controller = (ListDetailViewController *)navigationController.topViewController;
controller.delegate = self;
Checklist *checklist = _lists[indexPath.row];
controller.checklistToEdit = checklist;
[self presentViewController:navigationController animated:YES completion:nil];
}
#end // Missing "end" | Expected "}"
AllListsViewController.h
#import <UIKit/UIKit.h>
#import "ListDetailViewController.h"
#interface AllListsViewController : UITableViewController <ListDetailViewControllerDelegate>
#end
ListDetailViewController.h
#import <UIKit/UIKit.h>
#class ListDetailViewController;
#class Checklist;
#protocol ListDetailViewControllerDelegate <NSObject>
-(void)listDetailViewControllerDidCancel:(ListDetailViewController *)controller;
-(void)listDetailViewController:(ListDetailViewController *)controller didFinishAddingChecklist:(Checklist *)checklist;
-(void)listDetailViewController:(ListDetailViewController *)controller didFinishEditingChecklist:(Checklist *)checklist;
#end
#interface ListDetailViewController : UITableViewController
#property (nonatomic, weak) IBOutlet UITextField *textField;
#property (nonatomic, weak) IBOutlet UIBarButtonItem *doneBarButton;
#property (nonatomic, weak) id <ListDetailViewControllerDelegate> delegate;
#property (nonatomic, strong) Checklist *checklistToEdit;
-(IBAction)cancel;
-(IBAction)done;
#end
Based on the fact that you are getting errors about a missing end and "expected '}', it sounds like you have mismatched curly brackets in your code. This sort of thing is really hard to spot by looking at code, but quite easy in Xcode. double-tap on each opening curly brace and Xcode will select the entire contents of the block up to the closing brace. Do that in your AllListsViewController.m file until you find the opening curly brace that does not have a corresponding closing brace.

Adding additional data to inner array with sorted outer array

I have a plist with contacts: the root is an array, items 0-150 are dictionaries, each dictionary is a single contact with a "name", "number", and "email" string.
The code below sorts the contacts alphabetically into sections based upon the "name" string. Then uses the inner array to populate the cells for each section. I then pass the name from the inner array to my detail view.
However, I can not figure out how to pass the correct number and email for each contact into the detail view. I've been working on this issue for a long while and can not find a solution.
#interface ContactsViewController ()
-(void)configureSectionData;
#end
#implementation ContactsViewController
#synthesize tableData;
#synthesize collation;
#synthesize outerArray;
#synthesize indexTitlesArray, namesDictionary;
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
#pragma mark - Table view methods
-(void)configureSectionData {
NSUInteger sectionTitlesCount = [collation.sectionTitles count];
self.outerArray = [NSMutableArray arrayWithCapacity:sectionTitlesCount];
for (NSUInteger index = 0; index < sectionTitlesCount; index++) {
NSMutableArray *array = [NSMutableArray array];
[self.outerArray addObject:array];
}
for (NSString *nameString in tableData)
{
NSInteger sectionNumber = [collation sectionForObject:nameString collationStringSelector:#selector(lowercaseString)];
NSMutableArray *sectionNames = [outerArray objectAtIndex:sectionNumber];
[sectionNames addObject:nameString];
}
for (NSUInteger index = 0; index < sectionTitlesCount; index++) {
NSMutableArray *namesForSection = [outerArray objectAtIndex:index];
NSArray *sortedNamesForSection = [collation sortedArrayFromArray:namesForSection collationStringSelector:#selector(lowercaseString)];
[self.outerArray replaceObjectAtIndex:index withObject:sortedNamesForSection];
}
}
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return [self.collation.sectionTitles count];
}
-(NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
NSString *theLetter = [self.collation.sectionTitles objectAtIndex:section];
if (![theLetter isEqualToString:#"#"]) {
NSString *titleString = [NSString stringWithFormat:#"%#", theLetter];
return titleString;
}
return nil;
}
-(NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView {
return self.collation.sectionTitles;
}
-(NSInteger)tableView:(UITableView *)tableView sectionForSectionIndexTitle:(NSString *)title atIndex:(NSInteger)index {
return [self.collation sectionForSectionIndexTitleAtIndex:index];
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
NSArray *innerArray = [self.outerArray objectAtIndex:section];
return [innerArray count];
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *cellIdentifier = #"cellIdentifier";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
if (!cell) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier];
}
// Get the inner array for this section
NSArray *innerArray = [self.outerArray objectAtIndex:indexPath.section];
// Get the name from the inner array
NSString *theName = [innerArray objectAtIndex:indexPath.row];
cell.textLabel.text = theName;
return cell;
}
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"MainiPhoneStoryboard" bundle:nil];
DetailViewController *detailView = (DetailViewController *)[storyboard instantiateViewControllerWithIdentifier:#"DetailViewController"];
// Get the inner array for this section
NSArray *innerArray = [self.outerArray objectAtIndex:indexPath.section];
// Get the name from the inner array
NSString *tmpname = [innerArray objectAtIndex:indexPath.row];
detailView.lblname = tmpname;
[self presentViewController:detailView animated:YES completion:nil];
}
#pragma mark - View lifecycle
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
self.namesDictionary = [NSMutableArray arrayWithContentsOfFile:[[NSBundle mainBundle] pathForResource:#"contacts" ofType:#"plist"]];
self.tableData = [namesDictionary valueForKey:#"name"];
self.collation = [UILocalizedIndexedCollation currentCollation];
[self configureSectionData];
}
Since you're populating your table from an array of just the names from your plist, you'll have to search that array using the name to find the dictionary that it belongs to, so you can pass that to the detail view controller (you would need to create a property in your detail view controller, passedInDictionary in my example):
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"MainiPhoneStoryboard" bundle:nil];
DetailViewController *detailView = (DetailViewController *)[storyboard instantiateViewControllerWithIdentifier:#"DetailViewController"];
// Get the inner array for this section
NSArray *innerArray = [self.outerArray objectAtIndex:indexPath.section];
// Get the name from the inner array
NSString *tmpname = [innerArray objectAtIndex:indexPath.row];
NSInteger indx = [self.namesDictionary indexOfObjectPassingTest:^BOOL(NSDictionary *dict, NSUInteger idx, BOOL *stop) {
return [dict[#"name"] isEqualToString:tmpname];
}];
NSDictionary *dict = self.namesDictionary[indx];
detailView.passedInDictionary = dict;
[self presentViewController:detailView animated:YES completion:nil];
}

Selecting Cell in Table IOS

I am trying to create a method that changes the string object "tableColorName" to the cell selected. The tableData NSArray consists of object: "red","blue","green". I want to save the string "tableColorName" to redColor if red is selected, blueColor if blue, greenColor if green. After the cell is selected I want the viewController to go back to the root. I appreciate your help in advance:
-(void) tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
int theRow = indexPath.row;
NSString *tableColorName;
tableColorName = [[NSString alloc] initWithString:([_tableData [theRow] stringValue],#"Color")];
[self.navigationController popToRootViewControllerAnimated:YES];
}
//first of all take one NSArray and
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
self.colorNames = [[NSArray alloc] initWithObjects:#"Red", #"Green",
#"Blue", #"Indigo", #"Violet", nil];
}
// Implement Table method
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [self.colorNames count];
}
// Customize the appearance of table view cells.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath: (NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier] autorelease];
}
// Configure the cell.
self.navigationItem.title=#"Colors";
UIImage *cellImage = [UIImage imageNamed:#"a.png"];
cell.imageView.image = cellImage;
NSString *colorString = [self.colorNames objectAtIndex: [indexPath row]];
cell.textLabel.text = colorString;
NSString *subtitle = [NSString stringWithString: #"All about the color "];
subtitle = [subtitle stringByAppendingFormat:colorString];
cell.detailTextLabel.text = subtitle;
return cell;
}
- (void)tableView: (UITableView *)tableView didSelectRowAtIndexPath: (NSIndexPath *)indexPath
{
int idx = indexPath.row;
obj.lbl.text=[#"You select "stringByAppendingString:[colorNames objectAtIndex:idx]];
[self popToViewController animated:YES];
}
Try this ::
NSArray *arr;
NSString *tableColorName; // Use in AppDelegate
- (void)viewDidLoad
{
arr = [[NSArray alloc] initWithObjects:#"Red", #"Green", #"Blue", nil];
}
Table View Methods ::
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
cell.title.text = [NSString stringWithFormat:#"%#", [arr objectAtIndex:indexPath.row]];
return cell;
}
-(void) tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
app.tableColorName = [NSString StringWithFormat:#"%# Color", [arr objectAtIndex:indexPath.row]];
[self.navigationController popToRootViewControllerAnimated:YES];
}
Then, access by app.tableColorName whenever you want to display.
Thanks.
-(void) tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath*)indexPath
{
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
//do whatever with the selected cell.
//go back to the root
}

Add view from table view cell

I know this question has been asked before but mine is different. My app has an add button and edit button that deletes/adds table views. I want every cell that is created by the user to go to the same view. I've been looking everywhere for the code but I can't find it. BTW the ____ is just a placeholder. The table coding is in the app delegate and I have a second view controller for the view that is loaded when a row is clicked.
AppDelegate.h
#interface _____AppDelegate : NSObject <UIApplicationDelegate> {
CustomCellViewController *customCellViewController;
IBOutlet UIWindow *window;
IBOutlet UITableViewCell *customCell;
NSMutableArray *data;
IBOutlet UITableView *mainTableView;
IBOutlet UINavigationItem *navItem;
}
#property (nonatomic, retain) IBOutlet UIWindow *window;
#property (nonatomic, retain) IBOutlet UINavigationController *navController;
#property (nonatomic, retain) CustomCellViewController *customCellViewController;
- (IBAction)addRowToTableView;
- (IBAction)editTable;
- (NSString *)dataFilePath;
#end
AppDelegate.m
#import "______AppDelegate.h"
#implementation ______AppDelegate;
#synthesize window;
#synthesize navController=_navController;
#synthesize customCellViewController;
- (void)applicationDidFinishLaunching:(UIApplication *)application {
NSArray *archivedArray = [NSKeyedUnarchiver unarchiveObjectWithFile:[self dataFilePath]];
if (archivedArray == nil) {
data = [[NSMutableArray alloc] init];
} else {
data = [[NSMutableArray alloc] initWithArray:archivedArray];
}
// Override point for customization after application launch
self.window.rootViewController = self.navController;
[self.window makeKeyAndVisible];
return YES;
}
- (IBAction)addRowToTableView {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"New Product" message:#"What is the name of your product?" delegate:self cancelButtonTitle:#"Cancel" otherButtonTitles:#"Ok", nil];
[alert addTextFieldWithValue:#"" label:#"Name of product..."];
UITextField *tf = [alert textFieldAtIndex:0];
tf.clearButtonMode = UITextFieldViewModeWhileEditing;
tf.keyboardType = UIKeyboardTypeURL;
tf.keyboardAppearance = UIKeyboardAppearanceAlert;
tf.autocapitalizationType = UITextAutocapitalizationTypeNone;
tf.autocorrectionType = UITextAutocorrectionTypeNo;
[alert show];
}
-(void)alertView:(UIAlertView *)alert clickedButtonAtIndex:(NSInteger)buttonIndex {
if (buttonIndex == 1) {
UITextField *tf = [alert textFieldAtIndex:0];
[data addObject:tf.text];
[self saveData];
[mainTableView reloadData];
}
}
- (IBAction)editTable {
UIBarButtonItem *leftItem;
[mainTableView setEditing:!mainTableView.editing animated:YES];
if (mainTableView.editing) {
leftItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:#selector(editTable)];
} else {
leftItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemEdit target:self action:#selector(editTable)];
}
navItem.rightBarButtonItem = leftItem;
[self saveData];
[mainTableView reloadData];
}
- (IBAction)endText {
}
- (NSInteger)numberOfSectionInTableView:(UITableView *)tableView {
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [data count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifer = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:#"Cell"];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:"Cell"] autorelease];
}
cell.textLabel.text = [data objectAtIndex:indexPath.row];
return cell;
}
- (NSString *)dataFilePath {
NSString *dataFilePath;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentDirectory = [paths objectAtIndex:0];
dataFilePath = [[documentDirectory stringByAppendingPathComponent:#"applicationData.plist"] retain];
return dataFilePath;
}
- (void)saveData {
[NSKeyedArchiver archiveRootObject:[data copy] toFile:[self dataFilePath]];
}
-(void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
[data removeObjectAtIndex:indexPath.row];
[tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationLeft];
}
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath {
return YES;
}
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath
toIndexPath:(NSIndexPath *)toIndexPath {
NSString *item = [[data objectAtIndex:fromIndexPath.row] retain];
[data removeObject:item];
[data insertObject:item atIndex:toIndexPath.row];
[item release];
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
[tableView deselectRowAtIndexPath:indexPath animated:YES];
}
- (void)dealloc {
[window release];
[_navController release];
[customCellViewController release];
[super dealloc];
}
#end
I don't mean to be harsh, but you have a lot of basics to learn. ARC will make your life much easier and your code better, by eliminating the need to manually manage memory (for the most part). You can enable it when you first start a project. You should.
Why is an App Delegate managing a table view? No, no no. The app delegate is supposed to respond to system-level events, not run your whole application. You need a separate view controller. Find some tutorials around the web and see how a basic app using a table view is structured. There are many. My favorites are on raywenderlich.com

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