I having problem with my table. After loading everything. My data is being loaded and string into name and loadscore. However it will not show in the table. Please help.
static const NSInteger kNameLabelTag = 1337;
static const NSInteger kScoreLabelTag = 5555;
- (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];
UILabel *nameLabel = [[UILabel new] autorelease];
[nameLabel setTag:kNameLabelTag];
[cell.contentView addSubview:nameLabel];
UILabel *highscoreLabel = [[UILabel new] autorelease];
[highscoreLabel setTag:kScoreLabelTag];
[cell.contentView addSubview:highscoreLabel];
}
// Configure the cell.
//cell.textLabel.text = [loadhighScore objectAtIndex:indexPath.row];
NSDictionary *score = [self.loadhighScore objectAtIndex:indexPath.row];
NSString *name = [score objectForKey:#"ScoreName"];
NSString *loadscore = [score objectForKey:#"HighScore"];
[(UILabel *)[cell.contentView viewWithTag:kNameLabelTag] setText:name];
[(UILabel *)[cell.contentView viewWithTag:kScoreLabelTag] setText:loadscore];
return cell;
}
Do you have the tableview delegate and datasource connected to your class?
if you are loading in this data after the view has appeared on screen check that you have reloaded the tables data source [yourTableView reloadData];
Related
I have a grouped UITableView that I populate from a list.
On some rows I don't want to have disclosure and on some I need to add label.
But is somehow mix something and add labels on wrong rows and display disclosures at each row.
What am I doing wrong here?
- (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];
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
cell.accessoryView = [[ UIImageView alloc ]
initWithImage:[UIImage imageNamed:#"customdisclosure.png" ]];
}
NSDictionary *dictionary = [_list objectAtIndex:indexPath.section];
NSArray *array = [dictionary objectForKey:#"Items"];
NSString *cellValue = [array objectAtIndex:indexPath.row];
cell.textLabel.text = cellValue;
if([cell.textLabel.text isEqualToString:#"with label"])
{
cell.accessoryType = UITableViewCellAccessoryNone;
cell.detailTextLabel.textColor = [UIColor blackColor];
cell.detailTextLabel.text = #"label...";
cell.selectionStyle = UITableViewCellSelectionStyleNone;
}
else if([cell.textLabel.text isEqualToString: #"No disclosure" ])
{
cell.accessoryType = UITableViewCellAccessoryNone;
}
return cell;
}
in your else if clause, you are not clearing the cell.detailTextLabel's text on the reused cell. Set it to nil and you will be fine.
cell.detailTextLabel.text = nil;
You will also need to hide the accessoryView in the else if clause, and unhide it.
cell.accessoryView.hidden = YES;
Overall, I would consider subclassing UITableViewCell so you can override prepareForReuse to reset your cell for the next cellForRowAtIndexPath call.
Guess the issue is with using reusable identifiers. Use different cell identifiers for the cells you do not want accessoryView.
static NSString *CellWithDisclosure = #"CellID_WithDisclosure";
static NSString *CellWithNoDisclosure = #"CellID_NoDisclosure";
NSDictionary *dictionary = [_list objectAtIndex:indexPath.section];
NSArray *array = [dictionary objectForKey:#"Items"];
NSString *cellValue = [array objectAtIndex:indexPath.row];
if([cell.textLabel.text isEqualToString:#"with label"])
{
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellWithDisclosure];
cell.selectionStyle = UITableViewCellSelectionStyleNone;
}
else if([cell.textLabel.text isEqualToString: #"No disclosure" ])
{
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellWithNoDisclosure];
cell.accessoryType = UITableViewCellAccessoryNone;
}
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:cellID] autorelease];
}
cell.textLabel.text = cellValue;
return cell;
I use UITableView with plist to make a tableview, than how to make a pervious/next button within the DetailView (without back to tableview and press next item)?
The program:
- (void)viewDidLoad
{
[super viewDidLoad];
NSMutableDictionary *labelDict = [[[NSMutableDictionary alloc]initWithContentsOfFile:[[[NSBundle mainBundle]bundlePath]stringByAppendingPathComponent:#"myData.plist"]] retain];
cellImages = [[NSMutableArray alloc ] initWithArray:[labelDict objectForKey:#"image"]];
cellTitles = [[NSMutableArray alloc] initWithArray:[labelDict objectForKey:#"title"]];
cellSubTitles = [[NSMutableArray alloc] initWithArray:[labelDict objectForKey:#"subtitle"]];
NSLog(#"%#", [[[NSBundle mainBundle] bundlePath]stringByAppendingPathComponent:#"myData.plist"]);
}
- (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];
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
}
// Configure the cell.
cell.textLabel.text = [cellTitles objectAtIndex:indexPath.row];
cell.detailTextLabel.text = [cellSubTitles objectAtIndex:indexPath.row];
cell.imageView.image = [UIImage imageNamed:[cellImages objectAtIndex:indexPath.row]];
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
if (!self.detailViewController) {
self.detailViewController = [[[DetailViewController alloc] initWithNibName:#"DetailViewController" bundle:nil] autorelease];
}
[self.navigationController pushViewController:self.detailViewController animated:YES];
self.detailViewController.detailImage.image = [UIImage imageNamed:[cellImages objectAtIndex:indexPath.row]];
self.detailViewController.detailDescriptionLabel.text = [cellTitles objectAtIndex:indexPath.row];
self.detailViewController.subTitle.text = [cellSubTitles objectAtIndex:indexPath.row];
self.detailViewController.title = nil;
}
Pass data arrays and current index to the detail view controller. Add actions to the buttons that will be selecting current record to dislpay.
I want to use lazy loading of images concept in my table view. My array of image rul string is ( MSMutableArray ) "images". How can I implement this in cellForRowAtIndexPath.
It looks like:
-(UITableViewCell *) tableView:(UITableView *)AtableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell=[searchtable dequeueReusableCellWithIdentifier:#"cell"];
if(!cell)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:#"cell"];
cell.textLabel.font=[UIFont systemFontOfSize:12];
cell.imageView.image=[UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:[appSmallLogos objectAtIndex:indexPath.row]]]];
cell.detailTextLabel.text=[appReleaseDates objectAtIndex:indexPath.row];
}
return cell;
}
Try this code :
UIActivityIndicatorView *indicator = [[UIActivityIndicatorView alloc]initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
indicator.frame = CGRectMake(your bounds);
[cell addSubview:indicator];
[indicator bringSubviewToFront:self.view];
[indicator startAnimating];
dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0ul);
dispatch_async(queue, ^{
//This is what you will load lazily
NSString *u=[NSString stringWithContentsOfFile:r.url encoding:NSUTF8StringEncoding error:nil];
NSURL *imageURL=url;
NSData *image=[NSData dataWithContentsOfURL:imageURL];
dispatch_sync(dispatch_get_main_queue(), ^{
CustomCell *cell = (CustomCell *)[tableView cellForRowAtIndexPath:indexPath];
cell.imageView.image=[UIImage imageWithData:image];
[cell setNeedsLayout];
[indicator stopAnimating];
});
});
cell.cellDescription.text=r.url;// this is which you want to add in first time.
I am not sure but try it.
You can use the SDWebImage library, the library will download and cache the image asynchronously. by passing the url to it as argument
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *MyIdentifier = #"MyIdentifier";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:MyIdentifier];
if (cell == nil)
{
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:MyIdentifier] autorelease];
}
// Here we use the new provided setImageWithURL: method to load the web image
[cell.imageView setImageWithURL:[NSURL URLWithString:#"http://www.domain.com/path/to/image.jpg"]
placeholderImage:[UIImage imageNamed:#"placeholder.png"]];
cell.textLabel.text = #"My Text";
return cell;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
TableCellLayout *cell = (TableCellLayout *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if(cell == nil)
{
cell = [[TableCellLayout alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
cell.cellName = [[array valueForKey:#"name"] objectAtIndex:indexPath.row];
cell.cellImage = [UIImage imageNamed:#"placeholder.png"]; // add a placeholder
NSString *imageURL = [[array valueForKey:#"imageLink"] objectAtIndex:indexPath.row];
NSURL *theURL = [NSURL URLWithString:imageURL];
if (asynchronousImageLoader == nil){
asynchronousImageLoader = [[AsynchronousImages alloc] init];
}
[asynchronousImageLoader loadImageFromURL:theURL];
cell.cellImage = asynchronousImageLoader.image;
return cell;
}
I finally managed to do it setting the image with:
– performSelectorOnMainThread:withObject:waitUntilDone:
After the image is downloaded
I have an NSMutableArray with objects within it and I use the following code to add/remove objects from the UITableView. It works but only after closing and relaunching the app, not straight away. Why is this? Here is my code (maincelltext is the title in the cell and subtitlecelltext is the subtitle):
maincelltext = [[NSMutableArray alloc] init];
subtitlecelltext = [[NSMutableArray alloc] init];
[maincelltext addObject:#"TITLE"];
[subtitlecelltext addObject:#"SUBTITLE TEST"];
EDIT: Here is my UITableView code:
- (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.textLabel.font = [UIFont fontWithName:#"HelveticaBold" size:16.0];
cell.textLabel.adjustsFontSizeToFitWidth = YES;
cell.textLabel.numberOfLines = 1;
// Configure the cell.
UIImage *cellImage = [UIImage imageNamed:#"warning.png"];
CGRect cropRect = CGRectMake(0.0, 0.0, 12.0, 12.0);
CGImageRef croppedImage = CGImageCreateWithImageInRect([cellImage CGImage], CGRectMake(0.0f,0.0f,cellImage.size.width,cellImage.size.height));
UIImageView *myImageView = [[UIImageView alloc] initWithFrame:cropRect];
[myImageView setImage:[UIImage imageWithCGImage:croppedImage]];
CGImageRelease(croppedImage);
[self.view addSubview:myImageView];
cell.imageView.image = cellImage;
NSString *subjectString = [maincelltext objectAtIndex: [indexPath row]];
cell.textLabel.text = subjectString;
NSString *subtitle = [subtitlecelltext objectAtIndex: [indexPath row]];
cell.detailTextLabel.text = subtitle;
if(maincelltext.count == 0){
NSString *notabledata = [NSString stringWithFormat:#"No Dates Set"];
[maincelltext addObject:notabledata];
}
return cell;
}
Thanks!
you need to tell the UITableView that it needs to insert the rows. First determine the index in the array the new object(s) are now at, then tell the UITableView to insert the rows like this:
NSIndexPath *indexPathOfNewObject=[NSIndexPath indexPathForRow: newObjectIndex section:0];
NSArray *indexPathArray=[NSArray arrayWithObject: indexPathOfNewObject];
[self.tableView beginUpdates];
// Note that UITableViewRowAnimationAutomatic is for iOS5 only.
[self.tableView insertRowsAtIndexPaths: indexPathArray withRowAnimation:UITableViewRowAnimationAutomatic];
[self.tableView endUpdates];
by using this method, you will get the cool animation effect on the tableView.
Alternatively, you could just call [self.tableView reloadData] and it will just reload all the data.
Good luck!
Just do a [myTableView reloadData]; after you did an [myArray addObject:myObject]; and you should be fine.
i want to display an image besides the text in table cell. i have 2 sections, General and Assignments. Now i only want to display image beside Assignments and no image besides General section. the below code displays images for Assignments section and then again repeats the images for General section. Can anybody help me how to accompalish this.
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {
staffImages = [[NSMutableArray alloc] init];
NSArray *arrTemp1 = [[NSArray alloc] initWithObjects:#"TRANSPORTATION",#"ROOMS",#"ACTIVITIES",nil];
NSArray *arrTemp2 = [[NSArray alloc] initWithObjects:#"CHAT",#"SEARCH",#"CALL",#"MORE",nil];
NSDictionary *temp =[[NSDictionary alloc] initWithObjectsAndKeys:arrTemp1,#"Assignments",arrTemp2,
#"General",nil];
//Add item images
[staffImages addObject:#"transportation.png"];
[staffImages addObject:#"hotel.png"];
[staffImages addObject:#"activities.png"];
//Set the title
self.navigationItem.title = #"STAFF ASSIGNMENTS";
self.tableContents=temp;
[temp release];
self.sortedKeys =[self.tableContents allKeys];
[arrTemp1 release];
[arrTemp2 release];
[super viewDidLoad];
}
- (UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *SimpleTableIdentifier = #"SimpleTableIdentifier";
NSArray *listData =[self.tableContents objectForKey:[self.sortedKeys objectAtIndex:[indexPath section]]];
UITableViewCell * cell = [tableView dequeueReusableCellWithIdentifier: SimpleTableIdentifier];
if(cell == nil) {
cell = [[[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:SimpleTableIdentifier] autorelease];
}
NSUInteger row = [indexPath row];
cell.textLabel.text = [listData objectAtIndex:row];
cell.imageView.image = [UIImage imageNamed:[staffImages objectAtIndex:indexPath.row]];
return cell;
}
NSMutableData *data=[NSMutableData dataWithContentsOfURL:[NSURL URLWithString:[NSMutableString stringWithFormat:#"%#",[[dataArray objectAtIndex:indexPath.row]objectForKey:#"LINK"]]]];
//NSLog(#"%#",data);
UIImage *img=[UIImage imageWithData:data];
cell.imageView.image=img;
this is best way
Assuming the general section is section 0 (i.e. first section)
if (indexPath.section == 1) {
cell.imageView.image = [UIImage imageNamed:[staffImages objectAtIndex:indexPath.row]];
}
You need to check the section of the indexPath. You probably will also need to use the section check to make sure that you set the text of the cell to the right value.
//You do not need to actually define this value
//this is just for naming purposes
#define SECTION_ASSIGNMENTS 0
...
- (UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *SimpleTableIdentifier = #"SimpleTableIdentifier";
NSArray *listData =[self.tableContents objectForKey:[self.sortedKeys objectAtIndex:[indexPath section]]];
UITableViewCell * cell = [tableView dequeueReusableCellWithIdentifier: SimpleTableIdentifier];
if(cell == nil) {
cell = [[[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:SimpleTableIdentifier] autorelease];
}
NSUInteger row = [indexPath row];
cell.textLabel.text = [listData objectAtIndex:row];
if(indexPath.section == SECTION_ASSIGNMENTS)
{
cell.imageView.image = [UIImage imageNamed:[staffImages objectAtIndex:indexPath.row]];
}
return cell;
}