I am trying to load my dropbox files into a UITableView but they are not showing up. I did every step from registering my app on dropbox.com and implementing the session delegate in my app. Here is my code can anyone tell me whats wrong with it. Im pretty sure i declared everything correctly but i cant seem to find the problem. Also i know its not a connection issue because i added an NSLog and it logs the files.
#import <UIKit/UIKit.h>
#import <DropboxSDK/DropboxSDK.h>
#interface testViewController : UITableViewController <DBRestClientDelegate>
{
DBRestClient *restClient;
NSMutableArray *dropboxURLs;
}
#end
#import "testViewController.h"
#interface testViewController ()
#end
#implementation testViewController
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
// Custom initialization
}
return self;
}
- (DBRestClient *)restClient {
if (!restClient) {
restClient =
[[DBRestClient alloc] initWithSession:[DBSession sharedSession]];
restClient.delegate = self;
}
return restClient;
}
- (void)viewDidLoad
{
[super viewDidLoad];
dropboxURLs = [[NSMutableArray alloc] init];
[[self restClient] loadMetadata:#"/"];
}
- (void)restClient:(DBRestClient *)client loadedMetadata:(DBMetadata *)metadata {
if (metadata.isDirectory) {
for (DBMetadata *file in metadata.contents) {
if (!file.isDirectory)
{
NSLog(#"%#", file.filename);
[dropboxURLs addObject:file.filename];
}
}
}
}
- (void)restClient:(DBRestClient *)client
loadMetadataFailedWithError:(NSError *)error {
NSLog(#"Error loading metadata: %#", error);
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#pragma mark - Table view data source
- (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 dropboxURLs.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"FileCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if(cell == nil)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
cell.textLabel.text = [dropboxURLs objectAtIndex:indexPath.row];
return cell;
}
#end
Reload the table view after you add things to the dropboxURLs array.
[self.tableView reloadData];
Try something like this immediately after your addObject call:
[self.tableView reloadSections:[NSIndexSet indexSetWithIndex:0] withRowAnimation:UITableViewRowAnimationFade];
-(void)restClient:(DBRestClient *)client loadedMetadata:(DBMetadata *)metadata {
if (metadata.isDirectory) {
for (DBMetadata *file in metadata.contents) {
if (!file.isDirectory)
{
NSLog(#"%#", file.filename);
[dropboxURLs addObject:file.filename];
}
}
}
[self. tableView reloadData];
}
Don't forget to set delegate and datasource of UITableView to self.
we have to load data from DropBoxRoot
After MetaData is loaded ,reload the tableview
(void)viewDidLoad{
[super viewDidLoad];
dropboxURLs = [[NSMutableArray alloc] init];
[self loadData];
}
-(void) loadData{
if ([DBSession sharedSession].root == kDBRootDropbox) {
photosRoot = #"/";//can specify any folder like /Photos,/Public etc
}
[self.restClient loadMetadata:photosRoot withHash:photosHash];
}
- (void)restClient:(DBRestClient*)client loadedMetadata:(DBMetadata*)metadata {
photosHash = metadata.hash;
NSArray* validExtensions = [NSArray arrayWithObjects:#"jpg", #"jpeg",#"png",#"txt",#"pdf",#"doc",#"mp3",#"mp4", nil];
for (DBMetadata* child in metadata.contents) {
NSString* extension = [[child.path pathExtension] lowercaseString];
if (!child.isDirectory && [validExtensions indexOfObject:extension] != NSNotFound) {
[directory addObject:child.filename];
}else{
[allFileAndDirectory addObject:child.filename];
}
[myTableView reloadData];
}
Related
enter code here[youtube picture of the same code][1]I keep getting an error with my code where it says
"unexpected "#" in program and also missing "#end"
If you look at the code below the #end is there but however much I retype it the answer is the same "missing #end"
Here is the full code
#import "MasterViewController.h"
#import "DetailViewController.h"
#interface MasterViewController ()
#end
#implementation MasterViewController
-(NSMutableArray *) objects
{
if (!_objects){
_objects =[[NSMutableArray alloc]init];
}
return _objects;
}
-(NSMutableArray *) results
{
if (!_results) {
_results =[[NSMutableArray alloc]init];
}
return _results;
}
-(void)viewDidLoad
{
[super viewDidLoad];
[self.objects addObject:#"Tabebuia yellow"];
[self.objects addObject:#"Prunus armeniaca"];
[self.objects addObject:#"Tabebuia rosea"];
}
-(void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
-(void) searchThroughData
{
self.results= nil;
NSPredicate * resultsPredicate = [NSPredicate predicateWithFormat:#"SELF contains [search]%#", self.searchBar.text];
self. results = [[ self.objects filteredArrayUsingPredicate:resultsPredicate]mutableCopy];
}
-(void) searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText
{
[self searchThroughData];
}
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
if (tableView == self.tableView)
{
return self.objects.count;
}else{
[self searchThroughData];
return self.results.count;
}
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (!cell)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier: CellIdentifier];
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
}
if (tableView == self.tableView){
cell.textLabel.text = self.objects[indexPath.row];
} else {
cell.textLabel.text = self.results[indexPath.row];
}
return cell;
}
-(void) tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
if (self.searchController.isActive)
{
[self performSegueWithIdentifier:#"Showdetail" sender:self];
}
-(void) PrepareForSegue:(UIStoryboardSegue *) segue sender:(id) sender
if ([[ segue identifier] isEqualToString:#"ShowDetail"]) {
NSString *object = nil;
NSIndexPath *Indexpath = nil;
if (self.UISearchController.isActive)
{UISearchController
Indexpath = [[ self.searchController searchResultsTableView]indexPathForSelectedRow];
object = self.results [Indexpath.row];
}else{
Indexpath = [self.tableView indexPathForSelectedRow];
object = [[self.objects [Indexpath.row];
[segue destinationViewController] setDetailLabelContents:object];
}}
#end
You have no closing } at the end of the prepareForSegue:sender: method. Formatting and indenting properly makes this clear.
You have code just floating outside of a method (the lines before the tableView:didSelectRowAtIndexPath: method.
There needs to be a proper pairing of { and } and code needs to be inside methods or functions.
I have the following code, which should populate a UITableView with information provided from a JSON variable. Problem is that none of the labels (TitleLabel and ReferenceLabel) populate and I'm left with the default label titles. What am I missing (this is driving me crazy)?
TableView.h
#import <UIKit/UIKit.h>
#define kGETUrl #"http://localhost/RtnDBScript.php"
#interface TableViewController : UITableViewController {
NSMutableArray *json;
}
TableView.m
#import "TableViewController.h"
#import "TableViewCell.h"
#interface TableViewController ()
#end
#implementation TableViewController
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
}
return self;
}
- (void) getData:(NSData *) data {
json = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:nil];
[self.tableView reloadData];
}
- (void) start {
NSURL *url = [NSURL URLWithString:kGETUrl];
NSData *data = [NSData dataWithContentsOfURL:url];
[self getData:data];
}
#pragma mark - View Lifecycle
- (void)viewDidLoad {
[super viewDidLoad];
[self start];
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
// Return the number of rows in the section.
return [json count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"TableViewCell";
TableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];
if (cell == nil) {
cell = [[TableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
}
NSDictionary *info = [json objectAtIndex:indexPath.row];
cell.TitleLabel.text = [info objectForKey:#"Name"];
cell.DescriptionLabel.text = [info objectForKey:#"Message"];
return cell;
}
In the above code i get the following error 'Property 'TitleLabel' not found on object of type 'CountryTableViewCell'
cell.TitleLabel.text = [info objectForKey:#"Name"];
cell.DescriptionLabel.text = [info objectForKey:#"Message"];
TableViewCell.h
#import <UIKit/UIKit.h>
#interface CountryTableViewCell : UITableViewCell{
}
TabelViewCell.m
#implementation CountryTableViewCell
- (void)awakeFromNib {
// Initialization code
}
- (void)setSelected:(BOOL)selected animated:(BOOL)animated {
[super setSelected:selected animated:animated];
// Configure the view for the selected state
}
Any and all help appreciated.
Can you please try?
CountryTableViewCell *cell = (CountryTableViewCell*)[tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];
// It seems that you are using prototype cell so no need to alloc.
//if (cell == nil) {
// cell = [[CountryTableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
//}
Just make sure CellIdentifier is matching to the identifier in storyboard prototype cell.
Update:
If you can see the default text then the problem can be in binding the labels (Labels are created but not bound to outlet).
To verify put a log right after assignment of text.
NSLog([cell.TitleLabel description]);
Can you please try
cell.TitleLabel.text = [NSString stringWithFormat:#"%#",[info objectForKey:#"Name"]];// Tell the system explicitly that this value will be NSString.
I am using parse as back-end for my app. I have found a few different methods to implement searchbar feature using a Parse tableview. This idea I found from Parse archives shows all objects on initial view and refresh, but when I search it does not return the correct results. If I type one letter "a" it returns some objects containing "a" but if I type more letters or and actual word that I know should be found it returns a blank table. It is also giving a warning when searching: A long-running Parse operation is being executed on the main thread. I have been working and researching this for a few weeks and can't get past this point. See code for implementation file.
#import "RecipeBookViewController.h"
#import "SearchedResultCell.h"
#import "RecipeDetailViewController.h"
#import "HotelViewController.h"
#import "Recipe.h"
static NSString *const NothingFoundCellIdentifier = #"NothingFoundCell";
#interface RecipeBookViewController ()
#end
#implementation RecipeBookViewController {
}
#synthesize searchedBar;
#synthesize searchResults;
#synthesize recipesTable;
- (id)initWithCoder:(NSCoder *)aCoder
{
self = [super initWithCoder:aCoder];
if (self) {
// Custom the table
// The className to query on
self.parseClassName = #"Recipe";
// The key of the PFObject to display in the label of the default cell style
self.textKey = #"name";
// Whether the built-in pull-to-refresh is enabled
self.pullToRefreshEnabled = YES;
// Whether the built-in pagination is enabled
self.paginationEnabled = NO;
// The number of objects to show per page
//self.objectsPerPage = 10;
}
return self;
}
- (void)didReceiveMemoryWarning {
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
#pragma mark - UIViewController
- (void)viewDidLoad
{
[super viewDidLoad];
UINib *cellNib = [UINib nibWithNibName:NothingFoundCellIdentifier bundle:nil];
[self.tableView registerNib:cellNib forCellReuseIdentifier:NothingFoundCellIdentifier];
[self.searchedBar becomeFirstResponder];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(refreshTable:)
name:#"refreshTable"
object:nil];
}
- (void)refreshTable:(NSNotification *) notification
{
// Reload the recipes
[self loadObjects];
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
[[NSNotificationCenter defaultCenter] removeObserver:self name:#"refreshTable" object:nil];
}
#pragma mark - UISearchBarDelegate
- (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar
{
[searchResults removeAllObjects];
[self.searchedBar resignFirstResponder];
searchResults = [NSMutableArray arrayWithCapacity:10];
//#warning Put your ClassName here
PFQuery *query = [PFQuery queryWithClassName:#"Recipe"];
//#warning put key that you want to search here
[query whereKey:#"name" containsString:searchedBar.text];
NSArray *results = [query findObjects];
[searchResults addObjectsFromArray:results];
//#warning put your key here
[query orderByAscending:#"name"];
//[self queryForTable];
[self loadObjects];
}
#pragma mark - PFQueryTableViewController
- (void)objectsWillLoad {
[super objectsWillLoad];
// This method is called before a PFQuery is fired to get more objects
}
- (void) objectsDidLoad:(NSError *)error
{
[super objectsDidLoad:error];
NSLog(#"error: %#", [error localizedDescription]);
}
#pragma mark - Query
- (PFQuery *)queryForTable
{
PFQuery *query;
if (self.searchResults == 0) {
query = [PFQuery queryWithClassName:self.parseClassName];
} else {
query = [PFQuery queryWithClassName:self.parseClassName];
NSString *searchThis = [searchedBar.text lowercaseString];
//#warning key you wanted to search here
[query whereKeyExists:#"name"];
[query whereKey:#"name" containsString:searchThis];
}
[query orderByAscending:#"name"];
// If Pull To Refresh is enabled, query against the network by default.
if (self.pullToRefreshEnabled) {
query.cachePolicy = kPFCachePolicyNetworkOnly;
}
// If no objects are loaded in memory, we look to the cache first to fill the table
// and then subsequently do a query against the network.
if (self.objects.count == 0) {
query.cachePolicy = kPFCachePolicyCacheThenNetwork;
}
return query;
}
/*
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection: (NSInteger)section
{
if (searchResults == nil) {
return 0;
} else if ([searchResults count] == 0) {
return 1;
} else {
return [self.objects count];
}
}
*/
// Override to customize the look of a cell representing an object. The default is to display
// a UITableViewCellStyleDefault style cell with the label being the first key in the object.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath: (NSIndexPath *)indexPath object:(PFObject *)object
{
static NSString *simpleTableIdentifier = #"RecipeCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier];
}
// Configure the cell
PFFile *thumbnail = [object objectForKey:#"imageFile"];
PFImageView *thumbnailImageView = (PFImageView*)[cell viewWithTag:100];
thumbnailImageView.image = [UIImage imageNamed:#"recipeBoxImage2.jpg"];
thumbnailImageView.file = thumbnail;
[thumbnailImageView loadInBackground];
UILabel *nameLabel = (UILabel*) [cell viewWithTag:101];
nameLabel.text = [object objectForKey:#"name"];
UILabel *prepTimeLabel = (UILabel*) [cell viewWithTag:102];
prepTimeLabel.text = [object objectForKey:#"prepTime"];
static NSString *LoadMoreCellIdentifier = #"LoadMoreCell";
UITableViewCell *loadcell = [self.tableView dequeueReusableCellWithIdentifier:LoadMoreCellIdentifier];
if (!cell) {
loadcell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:LoadMoreCellIdentifier];
}
return cell;
}
- (void)configureSearchResult:(SearchedResultCell *)cell atIndexPath: (NSIndexPath *)indexPath object:(PFObject *)object
{
static NSString *simpleTableIdentifier = #"RecipeCell";
SearchedResultCell *searchcell = [self.tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
if (searchcell == nil) {
searchcell = [[SearchedResultCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier];
}
// Configure the cell
PFFile *thumbnail = [object objectForKey:#"imageFile"];
PFImageView *thumbnailImageView = (PFImageView*)[cell viewWithTag:100];
thumbnailImageView.image = [UIImage imageNamed:#"recipeBoxImage2.jpg"];
thumbnailImageView.file = thumbnail;
[thumbnailImageView loadInBackground];
UILabel *nameLabel = (UILabel*) [cell viewWithTag:101];
nameLabel.text = [object objectForKey:#"name"];
UILabel *prepTimeLabel = (UILabel*) [cell viewWithTag:102];
prepTimeLabel.text = [object objectForKey:#"prepTime"];
}
// Set CellForRowAtIndexPath
- (UITableViewCell *)searchtableView:(UITableView *)searchtableView cellForRowAtIndexPath:(NSIndexPath *)indexPath object:(PFObject *)object
{
static NSString *CellIdentifier = #"SearchResultCell";
//Custom Cell
SearchedResultCell *cell = [searchtableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[SearchedResultCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
if ([searchResults count] == 0) {
//cell.mainTitle.text = #"Nothing Found";
return [self.tableView dequeueReusableCellWithIdentifier:NothingFoundCellIdentifier];
} else {
//#warning put your ClassName here
PFObject *object = [PFObject objectWithClassName:#"Recipe"];
object = [searchResults objectAtIndex:indexPath.row];
[self configureSearchResult:cell atIndexPath:indexPath object:object];
//[self configureSearchResult:cell atIndexPath:indexPath object:object];
return cell;
}
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForNextPageAtIndexPath:(NSIndexPath *)indexPath {
static NSString *LoadMoreCellIdentifier = #"LoadMoreCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:LoadMoreCellIdentifier];
if (!cell) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:LoadMoreCellIdentifier];
}
return cell;
}
//// Set TableView Height for Load Next Page
//- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath: (NSIndexPath *)indexPath {
// if([self.objects count] == indexPath.row) {
// // Load More Cell Height
// return 60.0;
// } else {
// return 80.0;
// }
//}
#pragma mark - UITableViewDelegate
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
[tableView deselectRowAtIndexPath:indexPath animated:YES];
[searchedBar resignFirstResponder];
if ([self.objects count] == indexPath.row) {
[self loadNextPage];
} else {
PFObject *photo = [self.objects objectAtIndex:indexPath.row];
NSLog(#"%#", photo);
// Do something you want after selected the cell
}
}
#pragma mark - UIScrollViewDelegate
- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView {
[self.searchedBar resignFirstResponder];
}
//- (void)tableView:(UITableView *)tableView commitEditingStyle: (UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
//{
// // Remove the row from data model
// PFObject *object = [self.objects objectAtIndex:indexPath.row];
// [object deleteInBackgroundWithBlock:^(BOOL succeeded, NSError *error) {
// [self refreshTable:nil];
// }];
//}
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
if ([segue.identifier isEqualToString:#"showRecipeDetail"]) {
NSIndexPath *indexPath = [self.tableView indexPathForSelectedRow];
RecipeDetailViewController *destViewController = segue.destinationViewController;
PFObject *object = [self.objects objectAtIndex:indexPath.row];
Recipe *recipe = [[Recipe alloc] init];
recipe.name = [object objectForKey:#"name"];
recipe.imageFile = [object objectForKey:#"imageFile"];
recipe.prepTime = [object objectForKey:#"prepTime"];
recipe.ingredients = [object objectForKey:#"ingredients"];
recipe.instructions = [object objectForKey:#"instructions"];
recipe.servings = [object objectForKey:#"servings"];
recipe.hotelSite = [object objectForKey:#"hotelSite"];
recipe.recipeType = [object objectForKey:#"recipeType"];
destViewController.recipe = recipe;
}
}
#end
found this - hope it helps others - credit to Bizzi-Body
https://github.com/Bizzi-Body/ParseTutorial-Part-2
//
// GourmetChefViewController.m
//
// Created by RedMac on 3/19/15.
//
#import "RecipeBookViewController.h"
#interface RecipeBookViewController ()
{
NSMutableArray *totalStrings;
NSMutableArray *filteredStrings;
BOOL isFiltered;
}
#end
#implementation RecipeBookViewController
#pragma mark -
#pragma mark UIViewController
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad
{
[super viewDidLoad];
self.mySearchBar.delegate =self;
self.myTableView.delegate = self;
self.myTableView.dataSource=self;
[self retrieveFromParse];
}
- (void) retrieveFromParse {
PFQuery *retrieveRecipes = [PFQuery queryWithClassName:#"Recipe"];
[retrieveRecipes whereKeyExists:#"name"];
[retrieveRecipes findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
if (!error) {
NSLog(#"%#", objects);
totalStrings = [[NSMutableArray alloc] initWithArray:objects];
}
[self.myTableView reloadData];
}];
}
-(NSInteger) numberOfSectionsInTableView:(UITableView *)tableView{
return 1;
}
-(void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *) searchText{
if (searchText.length ==0){
isFiltered =NO;}
else{
isFiltered =YES;
filteredStrings=[[NSMutableArray alloc]init];
for(PFObject *element in totalStrings) {
NSString * str = [element objectForKey:#"name"];
NSLog(#"%#", NSStringFromClass([element class])); // you thought that totalStrings
// contained NSString objects,
// but it contains PFObjects.
NSRange stringRange =[str rangeOfString:searchText options:NSCaseInsensitiveSearch];
if (stringRange.location !=NSNotFound) {
// you need to add the PFObject back to make your cellForRowAtIndexPath: method
// work.
[filteredStrings addObject:element]; // used to be :str
}
}
}
[self.myTableView reloadData];
}
//table view datasource and delegate method.....
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger) section
{
if (isFiltered){
return [filteredStrings count];
}return [totalStrings count];
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
static NSString *CellIdentifier = #"RecipeCell";
UITableViewCell *cell= [tableView dequeueReusableCellWithIdentifier: CellIdentifier];
if (!cell){
cell=[[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
if(!isFiltered){
PFObject *tempObject =[totalStrings objectAtIndex: indexPath.row];
cell.textLabel.text = [tempObject objectForKey:#"name"];
}
else
{
PFObject *tempObject2 =[filteredStrings objectAtIndex: indexPath.row];
cell.textLabel.text =[tempObject2 objectForKey:#"name"];
}
return cell;
}
- (void)didReceiveMemoryWarning {
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
#end
I am getting an error which I don't understand because I have declared the property/ies. Have commented out the error in the AllListViewController.m file in the cellForRowAtIndexPath: method.
Here are the files:
Checklist.h
#import <Foundation/Foundation.h>
#interface Checklist : NSObject <NSCoding>
#property (nonatomic, copy) NSString *name;
#property (nonatomic, strong) NSMutableArray *items;
#property (nonatomic, copy) NSString *iconName;
-(int)countUncheckedItems;
#end
Checklist.m
#import "Checklist.h"
#import "ChecklistItem.h"
#implementation Checklist
-(id)initWithCoder:(NSCoder *)aDecoder
{
if ((self = [super init])) {
self.name = [aDecoder decodeObjectForKey:#"Name"];
self.items = [aDecoder decodeObjectForKey:#"Items"];
self.iconName = [aDecoder decodeObjectForKey:#"IconName"];
}
return self;
}
-(void)encodeWithCoder:(NSCoder *)aCoder
{
[aCoder encodeObject:self.name forKey:#"Name"];
[aCoder encodeObject:self.items forKey:#"Items"];
[aCoder encodeObject:self.iconName forKey:#"IconName"];
}
-(id)init
{
if ((self = [super init])) {
self.items = [[NSMutableArray alloc] initWithCapacity:20];
self.iconName = #"Appointments";
}
return self;
}
-(int)countUncheckedItems
{
int count = 0;
for (ChecklistItem *item in self.items) {
if (!item.checked) {
count += 1;
}
}
return count;
}
-(NSComparisonResult)compare:(Checklist *)otherChecklist
{
return [self.name localizedStandardCompare:otherChecklist.name];
}
#end
AllListsViewController.h
#import <UIKit/UIKit.h>
#import "ListDetailViewController.h"
#class DataModel;
#interface AllListsViewController : UITableViewController <ListDetailViewControllerDelegate, UINavigationControllerDelegate>
#property (nonatomic, strong) DataModel *dataModel;
#end
AllListsViewController.m
#import "AllListsViewController.h"
#import "Checklist.h"
#import "ChecklistViewController.h"
#import "ChecklistItem.h"
#import "DataModel.h"
#interface AllListsViewController ()
#end
#implementation AllListsViewController
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
// Custom initialization
}
return self;
}
- (void)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.
}
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
[self.dataModel setIndexOfSelectedChecklist:indexPath.row];
Checklist *checklist = self.dataModel.lists[indexPath.row];
[self performSegueWithIdentifier:#"ShowChecklist" sender:checklist];
}
-(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)tableView:(UITableView *)tableView accessoryButtonTappedForRowWithIndexPath:(NSIndexPath *)indexPath
{
UINavigationController *navigationController = [self.storyboard instantiateViewControllerWithIdentifier:#"ListNavigationController"];
ListDetailViewController *controller = (ListDetailViewController *)navigationController.topViewController;
controller.delegate = self;
Checklist *checklist = self.dataModel.lists[indexPath.row];
controller.checklistToEdit = checklist;
[self presentViewController:navigationController animated:YES completion:nil];
}
#pragma mark - Table view data source
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
// Return the number of rows in the section.
return [self.dataModel.lists count];
}
-(void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
[self.dataModel.lists removeObjectAtIndex:indexPath.row];
NSArray *indexPaths = #[indexPath];
[tableView deleteRowsAtIndexPaths:indexPaths withRowAnimation:UITableViewRowAnimationAutomatic];
}
- (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];
cell.imageView.image = [UIImage imageNamed:Checklist.iconName]; /* Use of undeclared identifier; did you mean 'Checklist'? or Property 'iconName' not found on object of type 'Checklist'*/
return cell;
}
Checklist *checklist = self.dataModel.lists[indexPath.row];
cell.textLabel.text = checklist.name;
cell.accessoryType = UITableViewCellAccessoryDetailDisclosureButton;
cell.detailTextLabel.text = [NSString stringWithFormat:#"%d Remaining", [checklist countUncheckedItems]];
int count = [checklist countUncheckedItems];
if ([checklist.items count] == 0) {
cell.detailTextLabel.text = #"(No Items)";
} else if (count == 0) {
cell.detailTextLabel.text = #"All Done";
} else {
cell.detailTextLabel.text = [NSString stringWithFormat:#"%d Remaining", count];
}
return cell;
}
/*
// 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
{
if (editingStyle == UITableViewCellEditingStyleDelete) {
// Delete the row from the data source
[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;
}
*/
/*
#pragma mark - Navigation
// In a story board-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
// Get the new view controller using [segue destinationViewController].
// Pass the selected object to the new view controller.
}
*/
-(void)listDetailViewControllerDidCancel:(ListDetailViewController *)controller
{
[self dismissViewControllerAnimated:YES completion:nil];
}
-(void)listDetailViewController:(ListDetailViewController *)controller didFinishAddingChecklist:(Checklist *)checklist
{
[self.dataModel.lists addObject:checklist];
[self.dataModel sortChecklists];
[self.tableView reloadData];
[self dismissViewControllerAnimated:YES completion:nil];
}
-(void)listDetailViewController:(ListDetailViewController *)controller didFinishEditingChecklist:(Checklist *)checklist
{
[self.dataModel sortChecklists];
[self.tableView reloadData];
[self dismissViewControllerAnimated:YES completion:nil];
}
-(void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController *)viewController animated:(BOOL)animated
{
if(viewController == self) {
[self.dataModel setIndexOfSelectedChecklist:-1];
}
}
-(void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
[self.tableView reloadData];
}
-(void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:animated];
self.navigationController.delegate = self;
NSInteger index = [self.dataModel indexOfSelectedChecklist];
if(index >= 0 && index < [self.dataModel.lists count]) {
Checklist *checklist = self.dataModel.lists[index];
[self performSegueWithIdentifier:#"ShowChecklist" sender:checklist];
}
}
#end
You have not declared the variable "Checklist" & trying to access the "iconName". Actually you are trying to access it directly via class name.
I can see you have created an instance if "Checklist" few lines down. So better create that instance before using Checklist.iconName
May be in the beginning of function after CellIdentifier creation.
Checklist *checklist = self.dataModel.lists[indexPath.row];
cell.imageView.image = [UIImage imageNamed:checklist.iconName]; /* Use of undeclared identifier; did you mean 'Checklist'? or Property 'iconName' not found on object of type 'Checklist'*/
return cell;
}
As per your code, "Checklist" is your class name, whereas the instance starts with small "c" as "checklist". So you also might have got confused.
Hope that helps.
I'm using SudzC for an iPhone app. I'm succesfully calling my ASP.Net webservice and pulling the needed data into an NSMutable array called tableData. I have a tableView that should display the contents of tableData; however this is not working. I've looked for hours at this problem. I'm very new to the Objective C world so I'm thinking it's a small oversight on my part. I've linked my TableView to the ViewController (delegate/datasource) as well.
Here's is the code I have:
#import "ViewController.h"
#import "DocumentServiceJSONService.h"
#interface ViewController ()
#end
#implementation ViewController
NSMutableArray *tableData;
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}
-(void)viewWillAppear:(BOOL) animated {
tableData = [[NSMutableArray alloc] init];
DocumentServiceJSONService* service = [[DocumentServiceJSONService alloc] init];
[service GetAllEMSDocumentsXMLAsString: self action:#selector(handleGetAllEMSDocuments:)];
[super viewWillAppear:animated];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
-(void) handleGetAllEMSDocuments:(id) result {
if ([result isKindOfClass:[NSError class]]) {
//if an error has occurred, handle it
return;
}
if([result isKindOfClass: [SoapFault class]]) {
return;
}
NSString* xmlString = result;
CXMLDocument *xmlDoc = [[CXMLDocument alloc] initWithXMLString:xmlString options:0 error:nil];
NSArray *nodes = NULL;
nodes = [xmlDoc nodesForXPath:#"//EMSDocuments" error:nil];
for (CXMLElement *node in nodes) {
NSMutableDictionary *item = [[NSMutableDictionary alloc] init];
int counter;
for (counter = 0; counter < [node childCount]; counter++) {
[item setObject:[[node childAtIndex:counter] stringValue] forKey:[[node childAtIndex:counter] name]];
}
//[item setObject:[[node attributeForName:#"DisplayName"] stringValue] forKey:#"DisplayName"];
NSString *displayName = [item objectForKey:#"DisplayName"];
[tableData addObject:displayName];
}
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [tableData count];
}
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *simpleTableIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
if (cell == nil)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier];
}
cell.textLabel.text = [tableData objectAtIndex:indexPath.row];
return cell;
}
#end
Any advice is appreciated.
Make sure you have in your .h the delegate and datasource correctly set:
#interface YourViewController : UIViewController <UITableViewDataSource, UITableViewDelegate>
And if you are using XIBs for the user interface, that the tableview is connected to the File's Owner as datasource and delegate.
--
EDIT:
Creating a Outlet for you tableview: