I am trying to parse text with images in the UITableView and I can only see the text for every line but I can't see the images.
Here is my code;
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [self.anaTablo dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
UILabel *textBaslik = (UILabel *) [cell viewWithTag:3];
UIImage *imagePic = (UIImage *) [cell viewWithTag:7];
textBaslik.text =[titleArray objectAtIndex:indexPath.row];
imagePic.images = [imageArray objectAtIndex:indexPath.row];
return cell;
}
but it didn't works and after searching I have tried this to;
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
UILabel *textBaslik = (UILabel *) [cell viewWithTag:3];
UIImage *imagePic = (UIImage *) [cell viewWithTag:7];
textBaslik.text =[titleArray objectAtIndex:indexPath.row];
NSString *str1 = [[NSString alloc] initWithFormat:#"%#", imageArray];
NSData *bgImageData = [NSData dataWithContentsOfFile:str1];
UIImage *img1 = [UIImage imageWithData:bgImageData];
imagePic = [img1 objectAtIndex:indexPath.row];
return cell
}
Am I doing something wrong? I am kind new to Xcode
Thanks from now.
I check you code and i change the following
NSString *str1 = [[NSString alloc] initWithFormat:#"%#", imageArray];
NSData *bgImageData = [NSData dataWithContentsOfFile:str1];
UIImage *img1 = [UIImage imageWithData:bgImageData];
imagePic = [imageArray objectAtIndex:indexPath.row];
cell.imageView.image=imagePic;
in the delegate method
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
Now a new error appear, check it
Check this tutorial about parsing RSS with XMLParses, it works perfectly.
Wiki XML parse data
You should check this sample code using TBXML framework
TBXML parser
Related
I have a tableview populated by objects loaded from NSUserDefaults.
Specifically - when a user presses a button in one view controller, a string is loaded into NSUserDefaults, which is then loaded into an array, which finally populates a table view.
I am wondering how I can load an image in each tableview cell, dependent on what string is loaded from NSUserDefaults?
I don't want to save images IN NSUserDefaults, as I am aware this is not a good idea.
What can I do?
Thank you for your time (and helping a novice out)!
Update 19FEB13
The Strings I am loading into NSUserDefaults are the names of objects, for example "ARCX".
At the moment I have tried a variety of pieces of code, but I am at the point where I seem to have a misunderstanding/lack of knowledge (or both).
UITableViewCell *XCell = [tableView cellForRowAtIndexPath:IndexPath];
NSString *content = Xcell.textLabel.text;
if ([content isEqualToString:#"ARCX"]) [UIImage *Image = [UIImage imageNamed #"ARCX.png"]];
Obviously I'm getting errors from this code.
I hope you can help!
Update 20FEB13
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *string = [myOBJArray objectAtIndex:indexPath.row];
static NSString *CellIdentifier = #"XCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
UIView *cellbackground = [[UIView alloc] initWithFrame:CGRectZero];
cellbackground.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:#"MSP cell bg MK2.png"]];
cell. backgroundView = cellbackground;
}
cell.textLabel.textColor = [UIColor yellowColor ];
cell.textLabel.font = [UIFont fontWithName:#"Helvetica" size:24.0];
cell.textLabel.text = string;
UITableViewCell *XCell = [tableView cellForRowAtIndexPath:indexPath];
NSString *content = XCell.textLabel.text;
if ([content isEqualToString:#"ARCX"]) [UIImage *Image = [UIImage imageNamed: #"ARCX.png" ]];
cell.imageView.image = Image;
return cell;
}
I did have the code I initially posted in the CellForRowAtIndexPath, but I know I am missing something in the implementation (obviously as it doesn't work!).
Thanks for your time!
Update 19Feb13
I This is my current CellForRowAtIndexPath. No errors, but yet no images in my cells. What am I missing?
Have I got to add an image view? I am currently using a 'basic' cell, not a custom one.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *string = [myObjArray objectAtIndex:indexPath.row];
static NSString *CellIdentifier = #"MSCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
UIView *cellbackground = [[UIView alloc] initWithFrame:CGRectZero];
cellbackground.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:#"MSP cell bg MK2.png"]];
cell. backgroundView = cellbackground;
}
cell.textLabel.textColor = [UIColor blackColor ];
cell.textLabel.font = [UIFont fontWithName:#"Helvetica" size:24.0];
cell.textLabel.text = string;
if ([string isEqualToString:#"ARCX"])
cell.imageView.image = [UIImage imageNamed: #"ARCX.png"];
else if ([string isEqualToString:#"WPX"])
cell.imageView.image = [UIImage imageNamed:#"WPX.png"];
return cell;
}
Thanks for your time!
UITableViewCell *XCell = [tableView cellForRowAtIndexPath:indexPath];
NSString *content = XCell.textLabel.text;
Please remove this piece of code, as it will call cellForRowAtIndexPath again and again.
You already have the image name as string
NSString *string = [myOBJArray objectAtIndex:indexPath.row];
So change the code like below.
if ([string isEqualToString:#"ARCX"])
UIImage *Image = [UIImage imageNamed: #"ARCX.png"];
cell.imageView.image = Image;
In my app I am trying to navigate to a new View from a TableViewCell, But i dont know how. Could you help guys? I am using Xcode 4.6. and .xib, no storyboard. I am very new to coding so please explain it as simple as possible! Here is what i have tried, please correct me:
- (void)viewDidLoad
{
tableData = [[NSArray alloc] initWithObjects:#"aaoversikt1", #"Paul", #"George", #"Ringo", nil];
[super viewDidLoad];
UILabel *nav_title1 = [[UILabel alloc] initWithFrame:CGRectMake(60, 10, 220, 25)];
nav_title1.font = [UIFont fontWithName:#"Arial-BoldMT" size:18];
nav_title1.textColor = [UIColor whiteColor];
nav_title1.adjustsFontSizeToFitWidth = NO;
nav_title1.textAlignment = NSTextAlignmentCenter;
nav_title1.text = #"Ålesund";
nav_title1.backgroundColor = [UIColor clearColor];
self.navigationItem.titleView = nav_title1;
}
#pragma mark - TableView Data Source methods
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection: (NSInteger)section;
{
return [tableData count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath;
{
UITableViewCell *cell = nil;
static NSString *CellIdentifier = #"Cell";
cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
cell.textLabel.text = [tableData objectAtIndex:indexPath.row];
return cell;
}
#pragma mark - TableView Delegate methods
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
AAOversiktViewController *aaoversikt1 = [[AAOversiktViewController alloc] initWithNibName:#"AAOversiktViewController" bundle:nil];
[self.navigationController pushViewController:aaoversikt1 animated:YES];
}
Thank You!
From first glance I would say that the problem lies within your [self.navigationController pushViewController] method. Have you initiated a navigation controller in your app either in the app delegate or root view controller?
If not i would recommend:
[self presentViewController:aaoversik1 animated:YES completion:NULL];
If you are wanting to push through the navigation stack so that you have a back button then I would look at implementing a UINaviationController.
Otherwise you can create a custom back button and use the same method in this post to present the root view controller (not totally recomended as using UINavigationController is much cleaner).
Let me know if this has been of any help, T
I am very new to mac app development. so just doing some practical exercise.
I want to create a tableview which display data from my plist file.
I have one windowcontroller class and window controller.xib file.
I drag and drop NSTableView to the .xib file.
and using this code to load plist file
- (void)windowDidLoad
{
[super windowDidLoad];
NSBundle *bundle = [NSBundle mainBundle];
NSString *path = [bundle pathForResource:#"tenth" ofType:#"plist"];
file = [[NSArray alloc] initWithContentsOfFile:path];
}
Now what should i do for displaying rows in my tableview??
Which method i have to use? and how??
like in IOS development we are using
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
}
NSArray *temp = [file objectAtIndex:indexPath.row];
cell.textLabel.text = [temp objectAtIndex:0];
return cell;
}
You can use either bindings with an NSArrayController or implement the NSTableViewDataSource protocol.
Recommended reading: Table View Programming Guide.
I'm working with the google YouTube API, and I'm using this code found here http://pastebin.com/vmV2c0HT
The Code that slows things down is this one here
cell.imageView.image = [UIImage imageWithData:data];
When I remove that code it scrolls smoothly. Any idea on how I can go about having it load the images from google but still scroll smoothly? I've read some of the answers on loading images in a different way, but I still can't figure out how I'll make that work with the code I'm using.
Any help will be appreciated.
Bellow is the full code.
#import "RootViewController.h"
#interface RootViewController (PrivateMethods)
- (GDataServiceGoogleYouTube *)youTubeService;
#end
#implementation RootViewController
#synthesize feed;
- (void)viewDidLoad {
NSLog(#"loading");
GDataServiceGoogleYouTube *service = [self youTubeService];
NSString *uploadsID = kGDataYouTubeUserFeedIDUploads;
NSURL *feedURL = [GDataServiceGoogleYouTube youTubeURLForUserID:#"BmcCarmen"
userFeedID:uploadsID];
[service fetchFeedWithURL:feedURL
delegate:self
didFinishSelector:#selector(request:finishedWithFeed:error:)];
[super viewDidLoad];
}
- (void)request:(GDataServiceTicket *)ticket
finishedWithFeed:(GDataFeedBase *)aFeed
error:(NSError *)error {
self.feed = (GDataFeedYouTubeVideo *)aFeed;
[self.tableView reloadData];
}
#pragma mark Table view methods
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
}
// Customize the number of rows in the table view.
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [[feed entries] 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:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
}
// Configure the cell.
GDataEntryBase *entry = [[feed entries] objectAtIndex:indexPath.row];
NSString *title = [[entry title] stringValue];
NSArray *thumbnails = [[(GDataEntryYouTubeVideo *)entry mediaGroup] mediaThumbnails];
cell.textLabel.text = title;
NSData *data = [NSData dataWithContentsOfURL:[NSURL URLWithString:[[thumbnails objectAtIndex:0] URLString]]];
cell.imageView.image = [UIImage imageWithData:data];
return cell;
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
return 100.0f;
}
- (void)dealloc {
[super dealloc];
}
- (GDataServiceGoogleYouTube *)youTubeService {
static GDataServiceGoogleYouTube* _service = nil;
if (!_service) {
_service = [[GDataServiceGoogleYouTube alloc] init];
[_service setShouldCacheDatedData:YES];
[_service setServiceShouldFollowNextLinks:YES];
}
// fetch unauthenticated
[_service setUserCredentialsWithUsername:nil
password:nil];
return _service;
}
#end
GCD is a wonderful thing. Here is what I do:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"youTubeCell";
UITableViewCell *cell = nil;
cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
// Configure the cell.
GDataEntryBase *entry = [[feed entries] objectAtIndex:indexPath.row];
NSString *title = [[entry title] stringValue];
NSArray *thumbnails = [[(GDataEntryYouTubeVideo *)entry mediaGroup] mediaThumbnails];
cell.textLabel.text = title;
// Load the image with an GCD block executed in another thread
dispatch_queue_t downloadQueue = dispatch_queue_create("image downloader", NULL);
dispatch_async(downloadQueue, ^{
NSData *data = [NSData dataWithContentsOfURL:[NSURL URLWithString:[[thumbnails objectAtIndex:0] URLString]]];
UIImage * image = [UIImage imageWithData:data];
dispatch_async(dispatch_get_main_queue(), ^{
cell.imageView.image = image;
cell.imageView.contentMode = UIViewContentModeScaleAspectFit;
[cell setNeedsLayout];
});
});
dispatch_release(downloadQueue);
return cell;
}
Scrolling is now super smooth. The only drawback is that when you scroll quickly, cells are re-used and sometimes the images change as new ones come in.
New to Xcode,
I have created a grouped table view,containing different amounts of rows in each section and I now do not know the best way to populate the cells with data then move on to the next view when the cell is pressed.
Please Help.
Thank you
you could try out this basic tutorial to see how you can populate your table..
http://blog.webscale.co.in/?p=150
and for performing action when a cell is pressed, you would basically need to do something like this in the didSelectRowAtIndexPath method
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
if( 0 == indexPath.row)
{
NSLog(#"first row selected");
if(patientView == nil)
patientView = [[PatientList alloc]init];
[self.navigationController pushViewController:patientView animated:YES];
}
This is just a very very basic example of what you want to do... playing a bit around with this would help you learn more...
**set in .h file**
#property(nonatomic, retain)NSArray *data;
#property(nonatomic, retain)NSArray *sections;
**in .m file view did load**
self.sections = [[NSArray alloc] initWithObjects:#"university",#"sabaragamuwa",#"Srilanka",nil];
self.data = [[NSArray alloc]initWithObjects:
[[NSArray alloc] initWithObjects:
#"CiS",
#"006",
#"07", nil],
[[NSArray alloc] initWithObjects:
#"cis",
#"006",
#"007", nil],
[[NSArray alloc] initWithObjects:
#"cis",
#"006",
#"07", nil],nil];
**addthoose**
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
#warning Potentially incomplete method implementation.
// Return the number of sections.
return [self.sections count];
}
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section{
return [self.sections objectAtIndex:section];
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
#warning Incomplete method implementation.
// Return the number of rows in the section.
return [data count];}
**addalsooo**
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *SimpleTableIdentifier = #"SimpleTableIdentifier";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:
SimpleTableIdentifier];
// Configure the cell...
if (cell == nil){
// Create the cell.
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:SimpleTableIdentifier];
}
NSArray* dataArray = [data objectAtIndex:indexPath.section];
cell.textLabel.text = [dataArray objectAtIndex:indexPath.row];
cell.textLabel.textAlignment = UITextAlignmentRight;
cell.textLabel.textColor = [UIColor colorWithRed:0.0 green:139.0/255.0 blue:69.0/255.0 alpha:1.0];
UIImage *cellImage = [UIImage imageNamed:#"oranimCellIco.png"];
cell.imageView.image = cellImage;
return cell;}
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
NSArray* dataArray = [data objectAtIndex:indexPath.section];
NSString *catgory= [dataArray objectAtIndex:indexPath.row];
if(catgory==#"cis")
{
UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:#"Answer Set"
message:#"Answer set as Yes Or No"
delegate:nil
cancelButtonTitle:#"OK"
otherButtonTitles:nil];
[alertView show];
}
else if(catgory==#"006")
{
answerviewcon *vc1=[self.storyboard instantiateViewControllerWithIdentifier:#"answerviewcon"];
[self presentViewController:vc1 animated:YES completion:nil];
}