I am able to show a index on the right side similar to songs view on the ipod. During searching the index bar gets minimized automatically. And when i go back to my actual table view the index size is small and it displays only few alphabets. How to stop the resizing of this ?
you have to place proper delegate methods of UITableView in your viewController.m file.
for example I have placed following code.
Please read comments carefully.
#pragma mark -
#pragma mark Table view data source
// an array count which has values for index - like A,B,C etc.
// Customize the number of sections in the table view.
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
//return [NSArray arrayWithArray:keys];
return [keys count];
}
// an array which has values for index - like A,B,C etc.
- (NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView{
return keys;
}
// return how many number of rows are required for each section.
// Customize the number of rows in the table view.
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [[dMain valueForKey:[keys objectAtIndex:section]] count];
}
// return title of section
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section{
return [keys objectAtIndex:section];
}
// create each row for different sections
// Customize the appearance of table view cells.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
NSString *CellIdentifier = [NSString stringWithFormat:#"%i %i",indexPath.row,indexPath.section];
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
cell.textLabel.font=[UIFont fontWithName:#"Helvetica" size:12];
//cell.textLabel.text=[[[objects objectAtIndex:indexPath.row] valueForKey:#"marketname"] stringByReplacingOccurrencesOfString:#"_and_" withString:#"&"];
cell.textLabel.text=[[[[dMain valueForKey:[keys objectAtIndex:indexPath.section]] objectAtIndex:indexPath.row] valueForKey:#"marketname"] stringByReplacingOccurrencesOfString:#"_and_" withString:#"&"];
}
return cell;
}
Related
I'm using a UITableView with a subclassed prototype cell with a UITextField. The cell is used 4 times total in 4 sections. This is the code for it:
...
- (void)viewDidLoad
{
[super viewDidLoad];
cellTitles = [[NSArray alloc] initWithObjects:#"Smell", #"Taste", #"Suits", #"Notes", nil];
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return [cellTitles count];
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [cellTitles count] / [cellTitles count];
}
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
{
return [cellTitles objectAtIndex:section];
}
- (AddInfoCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *cellIdentifier = #"AddInfoCell";
AddInfoCell *addInfoCell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
if (addInfoCell == nil) {
addInfoCell = [[AddInfoCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier];
}
addInfoCell.cellTextView.delegate = self;
return addInfoCell;
}
I want to add the text from each cell to the dataSource object:
-(IBAction)nextButtonPressed:(id)sender {
...
[[dataSource objectAtIndex:dataSourceIndex] setObject:* forKey:#"Smellnote"];
[[dataSource objectAtIndex:dataSourceIndex] setObject:** forKey:#"Tastenote"];
//etc
…
}
*text from cell 1
**text from cell 2
How can I access the text that I want?
Maybe you're looking at it wrong. Why not make the delegate for the textField be the cell itself, ie, in the Cell's class, set the delegate to File'sOwner or self in the init... method.
Create a reference to the dataSource and pass the dataSource to your cell, along with the #"Key" for your dictionary.
cell.dataSource = self.dictionary;
cell.dataKey = #"Tastenote";
//in cell .m
//textFieldDelegate method...
[self.dataSource setObject:self.cellTextView.text forKey:self.dataKey];
I have table and one global variable in appdelegate class. I store all date in this global array and showing this array value in controller in table view. I have to give section index with alphabetical order by short how to give please help me on this
I tried this code but it not working for me
Kindly help me.
h.file:
NSMutableArray *timeZonesArray;
NSMutableArray *sectionsArray;
UILocalizedIndexedCollation *collation;
.mfile
#pragma mark -
#pragma mark Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
// Return the number of sections.
//return 1;
return [[collation sectionTitles] count];
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
// Return the number of rows in the section.
//app.networkActivityIndicatorVisible = YES;
NSArray *timeZonesInSection = [app.lstAirports objectAtIndex:section];
return [timeZonesInSection count];
// 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];
}
NSArray *timeZonesInSection = [app.lstAirports objectAtIndex:indexPath.section];
a=(airport*)[timeZonesInSection objectAtIndex:indexPath.row];
NSLog(#"str:%#",a);
if(a!=nil){
cell.textLabel.text =a.Name;
cell.detailTextLabel.text=a.Code;
//[app.spinner stopAnimating];
}
return cell;
}
#pragma mark -
#pragma mark Table view delegate
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
return [[collation sectionTitles] objectAtIndex:section];
}
- (NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView {
return [collation sectionIndexTitles];
}
- (NSInteger)tableView:(UITableView *)tableView sectionForSectionIndexTitle:(NSString *)title atIndex:(NSInteger)index {
return [collation sectionForSectionIndexTitleAtIndex:index];
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
app.originAirport = (airport*)[app.lstAirports objectAtIndex:indexPath.row];
[delegate Originstart:app.originAirport forIndexPath:self.indexPathToChange];
[self.navigationController popViewControllerAnimated:YES];
}
#pragma mark -
#pragma mark Set the data array and configure the section data
- (void)setTimeZonesArray:(NSMutableArray *)newDataArray {
if (newDataArray != timeZonesArray) {
[timeZonesArray release];
timeZonesArray = [newDataArray retain];
}
if (timeZonesArray == nil) {
self.sectionsArray = nil;
}
}
In order to display/arrange your data in alphabetical which in a array you have to use NSSortDescriptor
you have to make the object of this NSSortDescriptor class and give data here which you are fetching from XML
NSSortDescriptor *itemXml = [[NSSortDescriptor alloc] initWithKey:#"itemName" ascending:YES];
Now suppose you have an array sortDescriptors
NSArray *sortDescriptors = [[NSArray alloc] initWithObjects:itemXml,nil];
[yourArray sortUsingDescriptors:sortDescriptors];
I hope this will be usefull to you.
If you are looking for section-wise sorting I would hold your various sections in a dictionary that holds arrays for each of the sections and then sort each of those arrays as needed. It requires a bit more code on the table delegate methods but allows for complete control over each section's data
Another option is to encapsulate your data in a different and add a property for the section you want it in and add another sort descriptor to that so it is sorting the array by section and then by any other value. You do that by just adding another NSSortDescriptor to the array in the order you want the array to be sorted by.
The perfect example , please refer the code,
Sorting Alphabetically
So I don't know how this is happening, or how to fix it, but I am having an issue of my UISearchDisplayController's plain tableView displaying search results with a grouped cell.
I have a dataSource array with a few names, a tableData array that iterates through the dataSource array and adds any entries that fit the searchText, and then depending on which tableView it is, I reload the tableView with the appropriate dataSource...
Ideas anyone?
Code:
- (NSInteger)tableView:(UITableView *)aTableView numberOfRowsInSection:(NSInteger)section {
// Return the number of rows in the section.
int count = 0;
if(aTableView == self.tableView){
count = [userTableData count]==0?1:[userTableData count];
}else{
count = [tableData count];
}
return count;
}
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
return #"Users";
}
- (UITableViewCell *)tableView:(UITableView *)tView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"CellIdentifier";
// Dequeue or create a cell of the appropriate type.
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
cell.accessoryType = UITableViewCellAccessoryNone;
}
if(tView == self.tableView){
if([userTableData count] == 0){
cell.textLabel.text = #"Please select a user";
}else{
cell.textLabel.text = [userTableData objectAtIndex:indexPath.row];
}
}else{
cell.textLabel.text = [tableData objectAtIndex:indexPath.row];
}
return cell;
}
And then as the search is entered, matching strings are added to the tableData array
assign tags to the UITableView and hide the grouuped tableView while searching
In the documentation for UISearchDisplayController about the searchResultsTableView property, it says
Discussion:
This method creates a new table view if one does not already exist.
So what you could try is create your own UITableViewwhen you set up the UISDC, explicitly making it plain:
UITableView *searchTableView = [[UITableView alloc] initWithFrame:CGRectZero
style:UITableViewStylePlain];
searchDisplayController.searchResultsTableView = searchTableView;
I have a class that extends UITableviewController which displays a data type called "GigData" (which only contains strings for now). The content is stored in "data" which is an NSMutableArray containing NSMutableArrays containing "GigData". This array is passed to the instance of my class and the arrays inside arrays make up the sections of the table. Here is the code I have implemented so far:
#synthesize data = _data;
- (id)init
{
self = [super initWithStyle:UITableViewStyleGrouped];
_data = [[NSMutableArray alloc] init];
[[self navigationItem] setTitle:#"Gigs by Date"];
return self;
}
- (id)initWithStyle:(UITableViewStyle)style
{
return [self init];
}
- (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 - View lifecycle
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
// Return the number of sections.
return [_data count];
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
// Return the number of rows in the section.
return [[_data objectAtIndex:section] count];
}
- (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];
}
NSMutableArray *sectionArray = [_data objectAtIndex:[indexPath section]];
GigData *gig =[sectionArray objectAtIndex:[indexPath row]];
[[cell textLabel] setText:[gig description]];
return cell;
}
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
{
GigData *temp = [[_data objectAtIndex:section] objectAtIndex:0];
return [temp date];
}
When I run the app, I can see everything sorted into the right groups and all the displays are correct, except for the final section, which keeps changing names, some of which have included "cs.lproj", "headers" and "method not allowed". Scrolling to the bottom of the table then towards the top crashes the app. Also, if I provide my own implementation for description for "GigData", the app crashes even worse, I cannot scroll to the second section at all. Data is declared as a property in the header file and is set to nonatomic and retain. I have also tried using the code inside the init method to create the data array inside this class, but this makes no difference. Some runnings of the app have said there is a problem in tableView:cellForRowAtIndexPath: when I create "sectionArray". Has any body got any suggestions as to what I am doing wrong?
I can't display array in UITableView. The thing I do is - in viewWILLappear I'm creating array. In viewDIDappear I'm filling the array. But when I run [myArr count] or [myArr objectAtIndex:indexPath.row] in table setup I get empty table. If I define constant integer as row count and some constant string as cell text everything works fine. Is there some populate() method I have to run or is it a problem with some order of declarations?
Thanks for any help. Here's the code:
- (void)viewWillAppear:(BOOL)animated {
myArr = [[NSMutableArray alloc] initWithCapacity:100];
}
- (void)viewDidAppear:(BOOL)animated {
[self load_array];
}
- (void) load_array {
for (SomeObject *someObject in SomeObjects) {
[myArr addObject:someObject.someString];
NSLog(#"Value: %#", [myArr objectAtIndex:([myArr count]-1)]); // works
}
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [myArr count]; // works if I return const ("return 2")
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
}
- (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 = [myArr objectAtIndex:indexPath.row]; //=#"ASDF" works.
return cell;
}
You need to perform reloadData on your table view to make the view re-load the table cells.
Update: You should not allocate your array in the viewWillAppear, as this method might be called several times. Construct the array in the viewDidload: and fill it there, or in a background thread, or in the viewWillAppear: (using a conditional statement to check if its already filled). You should also make sure that you do not create a memory leak, from the code you provided it is likely that myArr will be replaced by a newly allocated array without being released.