Help me please with my tableView in xCode.
So i have my code:
-(void)viewDidLoad {
UIView *containerView = [[[UIView alloc] initWithFrame:CGRectMake(0, 0, -150, 45)] autorelease];
UILabel *headerLabel = [[[UILabel alloc] initWithFrame:CGRectMake(10, 20, 400, 40)] autorelease];
headerLabel.text = #"My table";
headerLabel.textColor = [UIColor greenColor];
headerLabel.shadowColor = [UIColor blackColor];
headerLabel.shadowOffset = CGSizeMake(0, 1);
headerLabel.font = [UIFont boldSystemFontOfSize:22];
headerLabel.backgroundColor = [UIColor clearColor];
[containerView addSubview:headerLabel];
self.tableView.tableHeaderView = containerView;
self.tableData = [NSArray arrayWithObjects:#"Eggs",#"Milk", #"Chocolate", #"Drink", #"Banana", #"Apple", #"Fruit", nil];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
//Поиск ячейки
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:CellIdentifier] autorelease];
}
cell.textLabel.text = [tableData objectAtIndex:indexPath.row];
return cell;
}
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
UIViewController *Main = [self.storyboard instantiateViewControllerWithIdentifier:#"Main"];
[self.navigationController pushViewController:Main animated:YES];
UIViewController *Main2 = [self.storyboard instantiateViewControllerWithIdentifier:#"Main2"];
[self.navigationController pushViewController:Main2 animated:YES];
}
When i pushed on the row "Eggs" will open another viewController with eggs. But i want that, when i will push on the row "Milk" will open page with milk but when i pushed on the row #"milk" i have page with "Eggs"...Thanks for help...big thanks. I think it work with index..but i don't know.
Try it....
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
if (indexPath.row == 0)
{
UIViewController *Main = [self.storyboard instantiateViewControllerWithIdentifier:#"Main"];
[self.navigationController pushViewController:Main animated:YES];
}
if (indexPath.row == 1)
{
UIViewController *Main2 = [self.storyboard instantiateViewControllerWithIdentifier:#"Main2"];
[self.navigationController pushViewController:Main2 animated:YES];
}
}
Hope it will help you....
Related
I have this table with custom cells, how cal cells be resizable according to the content?
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"CustomTableCell";
static NSString *CellNib = #"DetailViewCell";
DetailViewCell *cell = (DetailViewCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
NSArray *nib = [[NSBundle mainBundle] loadNibNamed:CellNib owner:self options:nil];
cell = (DetailViewCell *)[nib objectAtIndex:0];
}
cell.accessoryType = UITableViewCellAccessoryNone;
cell.cellTitleLabel.textColor = [UIColor blackColor];
cell.cellSubtitleLabel.textColor = [UIColor darkGrayColor];
informations = [[NSArray alloc] initWithObjects:titleString, subtitleString, stateString, categoryString, populationString, nil];
subtitles = [[NSArray alloc] initWithObjects:#"City", #"Country", #"State", #"Category", #"Population", nil];
cell.cellTitleLabel.text = [informations objectAtIndex:indexPath.row];
cell.cellSubtitleLabel.text = [subtitles objectAtIndex:indexPath.row];
return (DetailViewCell *) cell;
}
And here is the DetailViewCell.m
#import "DetailViewCell.h"
#implementation DetailViewCell
#synthesize cellTitleLabel;
#synthesize cellSubtitleLabel;
- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier {
self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
if (self) {
// Initialization code.
}
return self;
}
- (void)dealloc {
[cellTitleLabel release];
[cellSubtitleLabel release];
[super dealloc];
}
Thanks!
After your cell content changed, reset cell height in - (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath, and call [cell setNeedsDisplay]; to draw cell again.
- (int)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection: (NSInteger)section
{
return #"Substitutes";
}
- (int)tableView:(UITableView *)table numberOfRowsInSection:(NSInteger)section
{
int cnt=[subArray count];
return [subArray count];
}
- (float)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSArray *visible = [tableView indexPathsForVisibleRows];
NSIndexPath *indexpath = (NSIndexPath*)[visible objectAtIndex:0];
if ((selectedIndexPath != nil) && (selectedIndexPath.row == indexPath.row)){
NSUInteger row = [indexPath row];
NSString *subtitle =[[subArray objectAtIndex:row] stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
NSString *subDet =[[subDetArray objectAtIndex:row] stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
int height = [self heightOfCellWithTitle:subtitle andSubtitle:subDet];
return(height < CONST_Cell_height ? CONST_Cell_height : height);
}
return 40.0;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSUInteger row = [indexPath row];
static NSString *CellIdentifier = #"SearchCell";
UITableViewCell *cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier] autorelease];
if ((selectedIndexPath != nil) && (selectedIndexPath.row == indexPath.row)){
cell = [self CreateMultilinesCell:CellIdentifier];
cell.textLabel.text=[[subArray objectAtIndex:row] stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
cell.detailTextLabel.text =[[subDetArray objectAtIndex:row] stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
return cell;
} else {
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier] autorelease];
cell.textLabel.text=[[subArray objectAtIndex:row] stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
cell.detailTextLabel.text =[[subDetArray objectAtIndex:row] stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
return cell;
}
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
if (selectedIndexPath == indexPath) {
selectedIndexPath = nil;
[table reloadData];
} else {
selectedIndexPath = indexPath;
//static NSString *CellIdentifier = #"Cell";
//UITableViewCell *cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
//cell.textLabel.text=#"test";
//cell.detailTextLabel.text =#"det Test";
[table reloadData];
}
[self.table deselectRowAtIndexPath : indexPath animated : NO];
[tableView beginUpdates];
[tableView endUpdates];
}
i implemented table view using above code.when i selecting row no. 26 v or more it
expands on selection but doesn't contract on next click.& gives me error on scroll
NSInternalInconsistencyException', reason: 'Invalid index path for use with UITableView. Index paths passed to table view must contain exactly two indices specifying the section and row. Please use the category on NSIndexPath in UITableView.h if possible.'
code work smoothly for 25 rows. where i went wrong?
i got it finaly.:) selectedIndexpath gives garbage. i replace it by self.selectedIndexpath.
i didnt get why it do so on record no. 25 onwards.But this worked for me
Use like this
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:sender.tag-1 inSection:0];
CGRect rectOfCellInTableView = [objTableView rectForRowAtIndexPath:indexPath];
CGRect rectOfCellInSuperview = [objTableView convertRect:rectOfCellInTableView toView:[objTableView superview]];
HI i have some piece of code with table and some items in it.
i'd like to u advise me, how to remove and add some rows with animation.
When user scroll down to the last row "show next 5 item" code should to detect it and last row was removed and next 5 item will showed.
how to detect that table was scrolled to the bottom.
#import "tableAddRemoveViewController.h"
#implementation tableAddRemoveViewController
#synthesize myTable, listOfItems;
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad
{
next5item = [[NSArray alloc] initWithObjects:#"next Item1", #"next Item2", #"next Item3", #"next Item4", #"next Item5", nil];
[self showItems];
[super viewDidLoad];
}
- (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.textLabel.text = [listOfItems objectAtIndex:indexPath.row];
return cell;
}
-(void) showItems
{
NSLog(#"Button Pressed");
listOfItems = [[NSMutableArray alloc] initWithObjects:#"item1", #"item2", #"item3", #"item4", #"item5", #"item6", #"item7", #"item8", #"item9", #"item10", #"item11", #"item12", #"item13", #"item14", #"item15",#"show next 5 items", nil];
NSMutableArray *indexPathsToInsert = [[NSMutableArray alloc] init];
for (NSInteger i = 0; i < [listOfItems count]; i++) {
[indexPathsToInsert addObject:[NSIndexPath indexPathForRow:i inSection:0]];
}
[myTable beginUpdates];
[myTable insertRowsAtIndexPaths:indexPathsToInsert withRowAnimation:UITableViewRowAnimationLeft];
[myTable endUpdates];
}
-(void) removeLastRow
{
NSLog(#"removeLastRow");
}
#end
thx
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];
}