I have tableview with the cells and every cell pushes detailViewController. I want to assign text of the cell to a textLabel in detailViewController.
.h class of masterView
#property (strong,nonatomic) NSString *selectedCellText;
.m class of masterView
#synthesize selectedCellText = _selectedCellText;
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
self.selectedCellText = [[[tableView cellForRowAtIndexPath:indexPath] textLabel] text];
NSLog(#"%#",self.selectedCellText);
}
Here NSLog prints name of the cell
.h of detailViewController
#property (nonatomic, copy) listOfTricksViewController *aReference;
.m of detailViewController
#synthesize aReference = _aReference;
- (void)viewDidLoad
{
[super viewDidLoad];
self.detailViewName.text = self.aReference.selectedCellText;
NSLog(#"%#",self.aReference.selectedCellText);
}
Here NSLog prints null.
Modify your method prepareForSegue like this :
-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if([[segue identifier] isEqualToString:#"detailTrick"])
{
DetailViewController *detailViewController = (DetailViewController *)segue.
NSString *object = nil;
NSIndexPath *indexPath = nil;
indexPath = [self.tableView indexPathForSelectedRow];
// Pass data
detailViewController.aString = self.cellObjects[indexPath.row];
}
}
You need to call your DetailViewController and forward the data to this controller (supposing here you have a #property aString in your header of DetailViewController)
.h of detailViewController
#property (nonatomic, strong) NSString *aString;
.m of detailViewController
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
self.detailViewName.text = self.aString;
NSLog(#"%#",self.aString);
}
Related
Hi Let me try to clarify my issue. I have two TableViews, one is static and the other is dynamic. The static= RootVC and Dynamic=FirstVC. In FirstVC i have data that I want to select,save and pass the saved data to a UILabel in RootVC. 1)When I run my App data is selected however it is not saved or passed to my rooVC. I was using delegates and was advice not to use "delegate" but use "Blocks". But still i'm facing the same issue. Here is my code:
in rootVC.h
#import <UIKit/UIKit.h>
#interface RootViewController : UITableViewController
{
NSString *getRepeatLabel;
}
#property (strong, nonatomic) IBOutlet UILabel *repeatLabel;
#property (strong, nonatomic) IBOutlet UILabel *repeatDetail;
#property (nonatomic,strong) NSString *getRepeatLabel;
#end
in my rootVC.m
#import "RootViewController.h"
#interface RootViewController ()
#end
#implementation RootViewController
- (void)viewDidLoad
{
[super viewDidLoad];
_repeatLabel.text = #"Repeat";
_repeatDetail.text = getRepeatLabel;
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
}
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
UIViewController *destinationController = segue.destinationViewController;
if( [destinationController isKindOfClass:[FirstViewController class]] )
{
[(FirstViewController *)destinationController setCompletionBlock:^(NSString *getRepeatLabel;)
{
// do something here with your string // maybe you must reload your table // it depends on where your returning data needs to display <--------Not sure what to do here
// NSDateFormatter*dateFormatter = [[NSDateFormatter alloc]init];
// NSArray*days = [dateFormatter shortWeekdaySymbols]; <------Here I would like when data is selected to show days in short symbol
NSLog (#"The selected day/s is %#", getRepeatLabel); <---nothing displaying on console
}];
}
}
#end
in FirstVC.h
#import <UIKit/UIKit.h>
#import "RootViewController.h"
typedef void(^WeekdayCompletionBlock)(NSString *dayName);
#interface FirstViewController : UITableViewController
{
NSString *dayName;
}
#property (nonatomic, strong) WeekdayCompletionBlock completionBlock;
#property (nonatomic,strong) NSString *dayName;
- (IBAction)save:(id)sender;
#end
in FirstVC.m
#import "FirstViewController.h"
#import "RootViewController.h"
#interface FirstViewController ()
#end
#implementation FirstViewController
#synthesize completionBlock;
#synthesize dayName;
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
// Initialize table data
completionBlock = [NSArray arrayWithObjects:#"Sunday", #"Monday", #"Tuesday", #"Wednesday", #"Thursday", #"Friday", #"Saturday", nil];
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return YES;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [completionBlock count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *cellIdentifier = #"RepeatCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
if (cell == nil)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:cellIdentifier];
}
cell.textLabel.text = [completionBlock objectAtIndex:indexPath.row];
return cell;
}
// Called after the user changes the selection.
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
cell.accessoryType = UITableViewCellAccessoryCheckmark;
[tableView deselectRowAtIndexPath:indexPath animated:YES];
NSLog (#"The selected day/s is %#", [completionBlock objectAtIndex:indexPath.row]);
_getRepeatLabel = completionBlock; //<-----------string from RootVC gives error "undeclared _getRepeatLabel"
}
- (IBAction)save:(id)sender
{
NSUserDefaults *myNewWeekString = [NSUserDefaults standardUserDefaults];
[myNewWeekString setObject:completionBlock forKey:#"%#"];
[myNewWeekString synchronize];
self.completionBlock(myNewDayOfWeekString) <------error myNewDayOfWeekString undeclared and if i declare it here it complains about incompatibility
}
#end
Your code is a little bit wrong. I think you don't really understand block.
You want to pass more than string so the best way to do that is via array. Change block definition to accept array instead of string:
typedef void(^WeekdayCompletionBlock)(NSArray *dayName);
Change declaration of your property in FirstVC.h to:
#property (nonatomic, copy) NSArray *completionBlock; //This is your array, you use it as data source, It's not a block
//Add your block property
// This is your block property you will use it to pass the data between view controllers
#property (copy) WeekdayCompletionBlock returnBlock;
//Add property to keep your selected days
#property (nonatomic, strong) NSMutableArray *returnArray;
Add this line to viewDidLoad method:
self.returnArray = [[NSMutableArray alloc] init];
Change your didSelectRowAtIndexPath method in FirstVC.m to:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
if (cell.accessoryType == UITableViewCellAccessoryCheckmark)
{
cell.accessoryType = UITableViewCellAccessoryNone;
//remove data from array
[self.returnArray removeObject:[completionBlock objectAtIndex:indexPath.row]];
}
else
{
cell.accessoryType = UITableViewCellAccessoryCheckmark;
//add data to array
[self.returnArray addObject:[completionBlock objectAtIndex:indexPath.row]];
}
[tableView deselectRowAtIndexPath:indexPath animated:YES];
}
In your save: method call block and pass value to rootVC replace line:
self.completionBlock(myNewDayOfWeekString);
with:
if (self.returnBlock)
{
self.returnBlock(self.returnArray);
}
[self.navigationController popViewControllerAnimated:YES];
The last change left to do is set up ablok in your rootVC.m file. Replace line:
[(FirstViewController *)destinationController setCompletionBlock:
with (nsstring needs to be replaced with nsarray - you pass array with all of the selected data)
[(FirstViewController *)destinationController setCompletionBlock:^(NSArray *getRepeatLabel)
You set up block not NSArray.
I don't know what are you trying to do here:
[myNewWeekString setObject:completionBlock forKey:#"%#"];
You are using %# as a key. It should be text for example #"MY_KEY_FOR_ACCESING_DAYSOFWEEK". You are saving completionBlock it's all of your days if you want to save just selected days replace it with self.returnArray.
Hope this help.
Here are my relevant bits of code
This is my changeDaysViewController.h
#protocol changedays <NSObject>
-(void)didChangeDays:(NSNumber *)position :(BOOL )on_off;
#end
#import "AddSiteViewController.h"
#import <UIKit/UIKit.h>
#interface daysoftheweekViewController : UITableViewController{
}
#property (retain, nonatomic)NSMutableArray *daysOfTheWeek;
#property (retain, nonatomic)NSMutableArray *daysOfTheWeekNames;
#property (assign) id<changedays>deligate;
#end
This is the method in my changeDaysViewController.m
-(void)updateSwitch:(UIControl*)button withEvent:(UIEvent* )Event{
UISwitch *swch=(UISwitch *)button;
UITableViewCell *cell=(UITableViewCell*)swch.superview;
if ([swch isOn]) {
NSLog(#" is onchanged is %d",swch.tag);
[self.deligate didChangeDays:[NSNumber numberWithInt:cell.tag] :YES];
}else{
NSLog(#" id off row changed is %d",swch.tag);
[self.deligate didChangeDays:[NSNumber numberWithInt:cell.tag] :NO];
}
[self.deligate didChangeDays:[NSNumber numberWithInt:cell.tag] :NO];
NSLog(#" row changed is %d",swch.tag);
}
in my add addsiteViewController.h I have implemented the protocol
#interface AddSiteViewController : UIViewController <CLLocationManagerDelegate,UITableViewDelegate ,UIActionSheetDelegate,changedays>{...
in the addsiteViewController.m I have
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
daysoftheweekViewController *daysvc=[[daysoftheweekViewController alloc]init];
daysvc.deligate=self;
}
return self;
}
and i have
-(void)didChangeDays:(NSNumber *)position :(BOOL)on_off{
[daysOfTheWeek replaceObjectAtIndex:[position integerValue] withObject:[NSNumber numberWithBool:on_off]];
NSLog(#"days of the week changed in delegate");
}
edit 1
here is the cellorrowatindexpath
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSInteger row=[indexPath row];
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
// if(cell==nil){
cell=[[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
UISwitch *sw= [[UISwitch alloc]initWithFrame:CGRectMake(200.0f, 5.0f, 75.0f, 30.0f)];
cell.accessoryView=sw;
sw.tag=row;
[sw addTarget:self action:#selector(updateSwitch:withEvent:) forControlEvents:UIControlEventValueChanged];
// }
cell.textLabel.text=[daysOfTheWeekNames objectAtIndex:row];
if([[daysOfTheWeek objectAtIndex:row]integerValue]==1){
UISwitch *sw=(UISwitch *)cell.accessoryView;
[sw setOn:YES];
}else{
UISwitch *sw=(UISwitch *)cell.accessoryView;
[sw setOn:NO];
}
return cell;
}
when i change the switch on the UITableView, I get "is on changed is 1" logged on the console from the table view method -(void) updateSwitch. However, nothing happens in the -(void)didChangeDays method that is in my AddSiteViewController.
What am I doing wrong?
I have found my own problem.
I was trying to set the delegate in the viewDidLoad method of AddSiteViewControler, where there was no class of changedaysViewController.
i removed
daysoftheweekViewController *daysvc=[[daysoftheweekViewController alloc]init];
daysvc.deligate=self;
from my viewdidLoad and added this
controller.deligate=self;
to
-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{
if([segue.identifier isEqualToString:#"daysoftheweek"]){
daysoftheweekViewController *controller=[segue destinationViewController];
controller.daysOfTheWeek=daysOfTheWeek;
controller.daysOfTheWeekNames=daysOfTheWeekNames;
controller.deligate=self;
}
}
Thanks for all the comments
Try #property (nonatomic, retain) id<changedays>deligate; in your changeDaysViewController.h & #synthesize deligate changeDaysViewController.m
I'm trying to code an app in Xcode 4, with storyboarding. It's a master detail application, and it all worked fine, with the table and the detail view. But in my detail view, I would like to have a static table to display the data. In a grouped table style way, with the "key" on the left and "value" on the right, if that's a way to put it... So, it's all working fine until I put a table into my UIView. Apparently you have to put it in a UITableView for it to work, so I deleted the UIView that Xcode made for me and put in a UITableView in its place. I set it up EXACTLY the same (I think) with the identifier, title etc... and then connect the table cells up with outlets and what not. But now when I enter the view, I just get an empty table (well, not empty, just all the rows say "Detail" in rather than the actual data I want). I don't see why! D: I even changed DetailViewController.h to say "UITableViewController" as well! No avail... :( Could someone please enlighten me as to what I'm doing wrong! I bet it's really simple... :L Here's my code
MasterViewController.h
#import <UIKit/UIKit.h>
#class DetailViewController;
#interface MasterViewController : UITableViewController
#property (strong, nonatomic) DetailViewController *detailViewController;
#property (strong) NSMutableArray *verbs;
#end
MasterViewController.m
#import "MasterViewController.h"
#import "DetailViewController.h"
#import "VerbData.h"
#interface MasterViewController () {
NSMutableArray *_objects;
}
#end
#implementation MasterViewController
#synthesize verbs = _verbs;
- (void)awakeFromNib
{
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPad) {
self.clearsSelectionOnViewWillAppear = NO;
self.contentSizeForViewInPopover = CGSizeMake(320.0, 600.0);
}
[super awakeFromNib];
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
self.detailViewController = (DetailViewController *) [[self.splitViewController.viewControllers lastObject] topViewController];
self.title = #"Verbs";
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return YES;
}
- (void)insertNewObject:(id)sender
{
if (!_objects) {
_objects = [[NSMutableArray alloc] init];
}
[_objects insertObject:[NSDate date] atIndex:0];
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:0 inSection:0];
[self.tableView insertRowsAtIndexPaths:#[indexPath] withRowAnimation:UITableViewRowAnimationAutomatic];
}
#pragma mark - Table View
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return _verbs.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:#"VerbCell"];
VerbData *verb = [self.verbs objectAtIndex:indexPath.row];
cell.textLabel.text = verb.infinitive;
cell.detailTextLabel.text = verb.english;
return cell;
}
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
// Return NO if you do not want the specified item to be editable.
return YES;
}
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
if (editingStyle == UITableViewCellEditingStyleDelete) {
[_objects removeObjectAtIndex:indexPath.row];
[tableView deleteRowsAtIndexPaths:#[indexPath] withRowAnimation:UITableViewRowAnimationFade];
} else if (editingStyle == UITableViewCellEditingStyleInsert) {
// Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view.
}
}
/*
// 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;
}
*/
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPad) {
VerbData *object = [self.verbs objectAtIndex:indexPath.row];
self.detailViewController.detailItem = object;
}
}
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if ([[segue identifier] isEqualToString:#"showDetail"]) {
NSIndexPath *indexPath = [self.tableView indexPathForSelectedRow];
VerbData *object = [self.verbs objectAtIndex:indexPath.row];
[[segue destinationViewController] setDetailItem:object];
}
}
#end
DetailViewController.h
#import <UIKit/UIKit.h>
#import "VerbData.h"
#interface DetailViewController : UITableViewController <UISplitViewControllerDelegate>
#property (strong, nonatomic) VerbData *detailItem;
#property (weak, nonatomic) IBOutlet UILabel *detailDescriptionLabel;
#property (weak, nonatomic) IBOutlet UILabel *jeOutlet;
#property (weak, nonatomic) IBOutlet UILabel *tuOutlet;
#property (weak, nonatomic) IBOutlet UILabel *ilOutlet;
#property (weak, nonatomic) IBOutlet UILabel *nousOutlet;
#property (weak, nonatomic) IBOutlet UILabel *vousOutlet;
#property (weak, nonatomic) IBOutlet UILabel *ilsOutlet;
#end
DetailViewController.m
#import "DetailViewController.h"
#interface DetailViewController ()
#property (strong, nonatomic) UIPopoverController *masterPopoverController;
- (void)configureView;
#end
#implementation DetailViewController
#pragma mark - Managing the detail item
#synthesize detailItem = _detailItem;
#synthesize jeOutlet = _jeOutlet;
#synthesize tuOutlet = _tuOutlet;
#synthesize ilOutlet = _ilOutlet;
#synthesize nousOutlet = _nousOutlet;
#synthesize vousOutlet = _vousOutlet;
#synthesize ilsOutlet = _ilsOutlet;
- (void)setDetailItem:(id)newDetailItem
{
if (_detailItem != newDetailItem) {
_detailItem = newDetailItem;
// Update the view.
[self configureView];
}
if (self.masterPopoverController != nil) {
[self.masterPopoverController dismissPopoverAnimated:YES];
}
}
- (void)configureView
{
// Update the user interface for the detail item.
if (self.detailItem) {
self.detailDescriptionLabel.text = self.detailItem.english;
self.jeOutlet.text = self.detailItem.je;
self.tuOutlet.text = self.detailItem.tu;
self.ilOutlet.text = self.detailItem.il;
self.nousOutlet.text = self.detailItem.nous;
self.vousOutlet.text = self.detailItem.vous;
self.ilsOutlet.text = self.detailItem.ils;
}
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
self.title = self.detailItem.infinitive;
[self configureView];
}
- (void)viewDidUnload
{
[self setJeOutlet:nil];
[self setTuOutlet:nil];
[self setIlOutlet:nil];
[self setNousOutlet:nil];
[self setVousOutlet:nil];
[self setIlsOutlet:nil];
[super viewDidUnload];
// Release any retained subviews of the main view.
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) {
return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
} else {
return YES;
}
}
#pragma mark - Split view
- (void)splitViewController:(UISplitViewController *)splitController willHideViewController:(UIViewController *)viewController withBarButtonItem:(UIBarButtonItem *)barButtonItem forPopoverController:(UIPopoverController *)popoverController
{
barButtonItem.title = NSLocalizedString(#"Master", #"Master");
[self.navigationItem setLeftBarButtonItem:barButtonItem animated:YES];
self.masterPopoverController = popoverController;
}
- (void)splitViewController:(UISplitViewController *)splitController willShowViewController:(UIViewController *)viewController invalidatingBarButtonItem:(UIBarButtonItem *)barButtonItem
{
// Called when the view is shown again in the split view, invalidating the button and popover controller.
[self.navigationItem setLeftBarButtonItem:nil animated:YES];
self.masterPopoverController = nil;
}
#end
First thing I will try to debug is -(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath method. Is it return values? Try to put NSLog in this method and check it.
Or maybe this will help you:
Note: If you want to change the background color of a cell (by setting the background color of a cell via the backgroundColor property declared by UIView) you must do it in the tableView:willDisplayCell:forRowAtIndexPath: method of the delegate and not in tableView:cellForRowAtIndexPath: of the data source. Changes to the background colors of cells in a group-style table view has an effect in iOS 3.0 that is different than previous versions of the operating system. It now affects the area inside the rounded rectangle instead of the area outside of it.
The code must handle the case where dequeueReusableCellWithIdentifier answers nil...
static NSString *CellIdentifier = #"VerbCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (!cell) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
I have a plist (array of dictionaries) which populates a table view and works properly. I use Xcode 4 with storyboards.
Now I've created a detail view from a regular UIViewController and of course I want the selected name to be displayed in the nameLabel in the detail view. But I can't make the right connection. This is my code so far:
WineObject.m:
#import "WineObject.h"
#implementation WineObject
#synthesize libraryContent, libraryPlist;
- (id)initWithLibraryName:(NSString *)libraryName {
if (self = [super init]) {
libraryPlist = libraryName;
libraryContent = [[NSArray alloc] initWithContentsOfFile:[[NSBundle mainBundle]
pathForResource:libraryPlist ofType:#"plist"]];
}
return self;
}
- (NSDictionary *)libraryItemAtIndex:(int)index {
return (libraryContent != nil && [libraryContent count] > 0 && index < [libraryContent count])
? [libraryContent objectAtIndex:index]
: nil;
}
- (int)libraryCount {
return (libraryContent != nil) ? [libraryContent count] : 0;
}
- (void) dealloc {
if (libraryContent) [libraryContent release];
[super dealloc];
}
#end
ViewController.h:
#import <UIKit/UIKit.h>
#class WineObject;
#interface WinesViewController : UITableViewController {
WineObject *wine;
}
#end
ViewController.m:
#import "WinesViewController.h"
#import "WineObject.h"
#import "WineCell.h"
#interface WinesViewController ()
#end
#implementation WinesViewController
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
#pragma mark - Table view data source
- (void)viewWillAppear:(BOOL)animated {
wine = [[WineObject alloc] initWithLibraryName:#"Wine"];
self.title = #"Vinene";
[self.tableView deselectRowAtIndexPath:[self.tableView indexPathForSelectedRow] animated:YES];
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
// Return the number of sections.
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
// Return the number of rows in the section.
return [wine libraryCount];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"wineCell";
WineCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
// Configure the cell...
cell.nameLabel.text = [[wine libraryItemAtIndex:indexPath.row] valueForKey:#"Name"];
cell.districtLabel.text = [[wine libraryItemAtIndex:indexPath.row] valueForKey:#"District"];
cell.countryLabel.text = [[wine libraryItemAtIndex:indexPath.row] valueForKey:#"Country"];
cell.bottleImageView.image = [UIImage imageNamed:[[wine libraryItemAtIndex:indexPath.row] valueForKey:#"Image"]];
cell.flagImageView.image = [UIImage imageNamed:[[wine libraryItemAtIndex:indexPath.row] valueForKey:#"Flag"]];
cell.fyldeImageView.image = [UIImage imageNamed:[[wine libraryItemAtIndex:indexPath.row] valueForKey:#"Fylde"]];
cell.friskhetImageView.image = [UIImage imageNamed:[[wine libraryItemAtIndex:indexPath.row] valueForKey:#"Friskhet"]];
cell.garvesyreImageView.image = [UIImage imageNamed:[[wine libraryItemAtIndex:indexPath.row] valueForKey:#"Garvesyre"]];
return cell;
}
#pragma mark - Table view delegate
#end
WineCell.h:
#import <UIKit/UIKit.h>
#interface WineCell : UITableViewCell
#property (nonatomic, strong) IBOutlet UILabel *nameLabel;
#property (nonatomic, strong) IBOutlet UILabel *districtLabel;
#property (nonatomic, strong) IBOutlet UILabel *countryLabel;
#property (nonatomic, strong) IBOutlet UIImageView *bottleImageView;
#property (nonatomic, strong) IBOutlet UIImageView *flagImageView;
#property (nonatomic, strong) IBOutlet UIImageView *fyldeImageView;
#property (nonatomic, strong) IBOutlet UIImageView *friskhetImageView;
#property (nonatomic, strong) IBOutlet UIImageView *garvesyreImageView;
#end
Are you using a XIB for interface or generating it programmatically?
If you are using a XIB, the issue is that you aren't loading it up:
Change
winesDetailViewController = [[WinesDetailViewController alloc] init];
To
winesDetailViewController = [[WinesDetailViewController alloc] initWithNibName:#"YourNibNameHere" bundle:nil];
Or, if you are generating it programmatically, you must first set nameLabel or it will be nil. #synthesize doesn't set the variable, it simply generates getters and setters so that you can set it from outside.
Inside your viewDidAppear: (or better yet inside your init) add:
self.nameLabel=[[UILabel alloc] initWithFrame:CGRectMake(100,100,100,100)];
EDIT: If you are using Storyboards, it appears that you have to do the following.
Storyboards are all about relationships. Inside the story board editor, you add buttons and tell them which view controller they connect to. The same idea applies to TableView Cells. You can add a prototype table view cell (and customize it) and assign a relationship to it. The relationship you will want to give it is your detail view.
1.) Subclass UITableViewCell and give it a property that is the dictionary that you are trying to send to the detail view
2.) When creating cells (cellForRowAtIndexPath:) you will need to make sure to dequeue your custom cell and assign your dictionary to the property that you gave it.
3.) Make sure that your detail view has the identifier: DetailView
4.) Inside the table view controller, add the following code:
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if([segue.identifier isEqualToString:#"DetailView"])
{
//This works because by the time prepareForSeque: is called, the navigationController has loaded the new view
((DetailView *)[[self.navigationController viewControllers] objectAtIndex:0]).dataProperty=((MyCustomTableViewCell *)sender).dataProperty;
}
}
That ought to do it!
i am try to exchange the one cell to the value of other cell but my value is not transfer proper bec my value is passing second class to first class but not string value is passing array reference why what is the mistake in my code can u help me
for this i create delegate method
this is my originstart.h file
import
#import "RegexKitLiteDemoAppDelegate.h"
#class airport;
#protocol OriginstartDelegate <NSObject>
#required
- (void)Originstart:(NSString *)Origin forIndexPath:(NSIndexPath *)indexPath;
#end
#interface Originstart : UITableViewController {
RegexKitLiteDemoAppDelegate *app;
airport *selectedAirport;
}
#property(nonatomic,retain)NSString*name;
#property(nonatomic,retain)airport *selectedAirport;
#property (nonatomic, copy) NSIndexPath *indexPathToChange;
#property (nonatomic, assign) id<OriginstartDelegate> delegate;
#end
this is my orginestart.m file
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
// Return the number of rows in the section.
return app.lstAirports.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:UITableViewCellStyleValue1 reuseIdentifier:CellIdentifier] autorelease];
}
airport* a=(airport*)[app.lstAirports objectAtIndex:indexPath.row];
NSLog(#"str:%#",a);
cell.textLabel.text =a.Name;
cell.detailTextLabel.text=a.Code;
// Configure the cell...
return cell;
}
#pragma mark -
#pragma mark Table view delegate
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
NSString *newStation = [[app.lstAirports objectAtIndex:indexPath.row]description];
[delegate Originstart:newStation forIndexPath:self.indexPathToChange];
[self.navigationController popViewControllerAnimated:YES];
}
this is my Tfirst.m file
- (void)tableView:(UITableView *)tableView accessoryButtonTappedForRowWithIndexPath:(NSIndexPath *)indexPath
{
NSLog(#"accessory selected");
if ([indexPath section] == 0)
{
// load the appropriate view for the accessory selected
if ([indexPath row] == 0)
{
Originstart *viewtwo = [[Originstart alloc] initWithStyle:UITableViewStyleGrouped];
viewtwo.indexPathToChange = indexPath;
viewtwo.delegate = self;
[self.navigationController pushViewController:viewtwo animated:YES];
[viewtwo release];
}
else{
NSLog(#"accessory right");
}
}
}
#pragma mark - Delegate protocol method
- (void)Originstart:(NSString *)Origin forIndexPath:(NSIndexPath *)indexPath {
[datasource replaceObjectAtIndex:indexPath.row withObject:Origin];
[self.tableView reloadData];
}
this is my airport.h file where i create two string variable and one array for take value and display for in originstart classwith name and code i writen this in here in class
originstart.m airport* a=(airport*)[app.lstAirports objectAtIndex:indexPath.row];
NSLog(#"str:%#",a);
cell.textLabel.text =a.Name;
cell.detailTextLabel.text=a.Code;
and final this class arport class
//
// airport.h
// RegexKitLiteDemo
//
// Created by pradeep.yadav on 9/13/11.
// Copyright 2011 __MyCompanyName__. All rights reserved.
//
#import <Foundation/Foundation.h>
#interface airport : NSObject {
NSString *Code;
NSString *Name;
NSArray *DestinationAirports;
}
#property(nonatomic,retain)NSString *Code;
#property(nonatomic,retain)NSString *Name;
#property(nonatomic,retain)NSArray *DestinationAirports;
#end
To achieve what u want , just try these steps:
1.First, create a property of first class in the second class.
2.In the first class create those variables or objects as properties to which u want to pass the data from the second class.
3.(Hope u are using navigation controller based app ) While pushing from the first to second view controller u create a instance of the second class and pass it pushViewController method. Add the following line of code along with it.....
secondViewObj.firstView=self;
where secondViewObj is the instance of the secondViewController class and firstView is the property declared in that second class.
4.Now in the second class when u want to pass the data to first class just add the following line of code:
firstView.dataMember1=value;
where dataMember1 is the variable or object which was created as a property as mentioned in the 2nd point. Hope this helps.
In the FirstViewController class where u push to SecondviewController have the following piece of code:
SecondViewController *svc = [SecondViewController alloc]init];
svc.vc = self;
[self.navigationController pushViewController:svc animated:YES];
and also have a property declared for the data u want to pass to the firstView Controller.
In this case it s going to be a integer variable.
#property (nonatomic) int selectedValue and also synthesize it.
Now in the secondViewController , declare a property for the firstViewController like this
#property (nonatomic, retain) FirstViewController *vc; and synthesize it.
Where u want to pass the data to the FirstViewController have the following code,
vc.selectedValue = 1;
Now after popping back to the firstViewController , if u chk the value of the selectedValue variable u will find the value has been passed from second to first.
Hope this helps..
The simplest apprroach is to set an object in FirstViewController here is the way
SecondViewController
FirstViewController *instanceOfFirstView;
#property (nonatomic, retain) FirstViewController *instanceOfFirstView;
#synthesize instanceOfFirstView;
[instanceOfFirstView setValueNeedTobeBroughtFromSecondView:#"VAlue set"]
FirstViewController
NSString *valueNeedTobeBroughtFromSecondView;
#property (nonatomic, retain) NSString *valueNeedTobeBroughtFromSecondView;
#synthesize valueNeedTobeBroughtFromSecondView;
SecondViewController *aSecondViewController=[[SecondViewController alloc] init];
[aSecondViewController setInstanceOfFirstView: self];