I am pretty new to Objective-C and I am stuck in this part. I am trying to display the controls the textfield, label, Gradient views, and the Transfer button which are inside the content view of the cell, but it does not appear when I test it out. It only shows "1. Data to operate" twice but no content.. Can someone please help me out with this? I would appreciate it.
Below is how my ViewController looks like:
#implementation CNCTransfersOwnViewController{
}
//#synthesize delegate;
+ (id)instanceFromStoryboard {
return [self instanceFromStoryboardNamed:#"Transfer"];
}
- (void)viewDidLoad {
[super viewDidLoad];
[self setUpUI];
// Do any additional setup after loading the view.
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (void)setUpUI {
self.navigationBar.topItem.title = #"GO TO SOMEWHERE ELSE";
}
- (NSString *)identifierForCellAtIndexPath:(NSIndexPath *)indexPath {
NSString *identifier = #"";
identifier = #"OPERATION";
return identifier;
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
if(self.tableView == tableView){
return 2;
}else{
return 0;
}
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
if(self.tableView == tableView){
NSString *identifier = [self identifierForCellAtIndexPath:indexPath];
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:identifier forIndexPath:indexPath];
cell.selectionStyle = UITableViewCellSelectionStyleNone;
return cell;
}
return nil;
}
You need to set the text you want to display in the cellForRowAtIndexPath method:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
if(self.tableView == tableView){
NSString *identifier = [self identifierForCellAtIndexPath:indexPath];
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:identifier forIndexPath:indexPath];
cell.selectionStyle = UITableViewCellSelectionStyleNone;
cell.textLabel.text = #"The text you want to display";
return cell;
}
return nil;
}
Related
my problem is that I want to display the array elements in the label values using only one prototype cell but what i'm getting is this
And here is my code. Can someone please help me in this?
sorry for my bad english. :)
- (void)viewDidLoad {
[super viewDidLoad];
self.imgProfilePic.layer.cornerRadius = self.imgProfilePic.bounds.size.width/2;
self.imgProfilePic.layer.masksToBounds = YES;
self.lblBadge.layer.cornerRadius = self.lblBadge.bounds.size.width/2;
self.lblBadge.layer.masksToBounds = YES;
self.userData = [NSMutableArray arrayWithObjects:#"Projects",#"Tags",#"Saved Searches",#"Filters",#"Groups",#"Users",#"Settings",#"Abouts Us", nil];
}
- (void)viewWillAppear:(BOOL)animated{
[super viewWillAppear:animated];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
return [self.userData count];
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
NSString *identifier = #"myCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:identifier];
cell.textLabel.text = [self.userData objectAtIndex:indexPath.row];
return cell;
}
If you use stoyboard and you know count of elements you can put label's into cell and use them all. But you have to set label tag:
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];
UILabel * caption =(UILabel*)[cell viewWithTag:(1)];
caption.text = ...
Also you can use UIimage same way.
I have a problem and cellForRowAtIndexPath is not being called. I checked that both the no of row and sections are not zero. Thanks in advance for any advise.
- (void)viewDidLoad
{
[super viewDidLoad];
MakeupTable=[[UITableView alloc]init];
MakeupTable.dataSource=self;
MakeupTable.delegate=self;
[MakeupTable reloadData];
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
// Return the number of sections.
return 2;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
if (section==0) {
return 4;
}else{
return 1;
}
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
return cell;
}
Make sure this class is set as Table view delegates:
#interface YourViewController : UIViewController <UITableViewDelegate, UITableViewDataSource>
I want to create Dynamic UITableView that's contain days as a sections (sat,sun,mon,...)
would you please helping me!
Thanks in advance!
here is my code but i don't know what should I write for creating sections:
Day.h
#import <UIKit/UIKit.h>
#interface Day : UIViewController
#property (nonatomic, strong) NSMutableArray *monthTitle;
#end
Day.m
#synthesize monthTitle;
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super init];
if (self) {
monthTitle = [[NSMutableArray alloc] init];
}
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 - View lifecycle
- (void)viewDidLoad
{
[super viewDidLoad];
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (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 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
// Return the number of rows in the section.
return [self.monthTitle count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView
dequeueReusableCellWithIdentifier:#"Cell"];
return cell;
}
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle
forRowAtIndexPath:(NSIndexPath *)indexPath
{
if (editingStyle == UITableViewCellEditingStyleDelete)
{
[self.monthTitle removeObjectAtIndex:indexPath.row];
[tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath]
withRowAnimation:UITableViewRowAnimationFade];
}
}
#pragma mark - Table view delegate
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
// Navigation logic may go here. Create and push another view controller.
/*
<#DetailViewController#> *detailViewController = [[<#DetailViewController#> alloc] initWithNibName:#"<#Nib
name#>" bundle:nil];
// ...
// Pass the selected object to the new view controller.
[self.navigationController pushViewController:detailViewController animated:YES];
*/
}
#end
Make sure that you set up your UIViewController as the delegate and dataSource of the UITableView. First you need to implement the protocols for these two:
#interface Day : UIViewController <UITableViewDataSource, UITableViewDelegate>
#property (nonatomic, strong) NSMutableArray *monthTitle;
#end
Second you need to assign the delegate and dataSource of the UITableView to the UIViewController.
Right click on the UITableView and drag the delegate and dataSource outlets to the UIViewController at icon at the bottom of the view:
Now your UITableView is set up to use your UIViewController as the delegate and dataSource. After that, set up the functions properly to fill the UITableView with data:
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return [self.monthTitle count];
}
-(NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
{
return [self.monthTitle objectAtIndex:section];
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return 1; //Return the number of sections you want in each row
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *cellIdentifier = #"Whatever You Put For Cell Identifier On Interface Builder";
UITableViewCell* cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
//Configure the cell however you wish
return cell;
}
Now, assuming you have self.monthTitle set up as an NSArray of NSString that holds the titles you want for each section, this code will give you a UITableView with as many sections as there are titles in self.monthTitle with 1 row in each section and a section header that correlates to that particular index of self.monthTitle. So if self.monthTitle holds all of the days of the week, your UITableView will look like this:
The following method returns the number of sections.
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
// Return the number of sections.
return 1;
}
So, if you need 3 sections, you have to return 3.
After that, you can use this method to name sections :
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
if(section == 0)
return #"name section 0";
else if(section == 1){
return #"name section 1";
}else
return #"name section 2";
//etc...
}
Use Array or dictionary to create dynamic structure
_sections = [NSMutableArray array];
[_sections addObject:#"section1"];
[_sections addObject:#"section2"];
_rows = [NSMutableArray array];
NSMutableArray* section1 = [NSMutableArray array];
[section1 addObject:#"row1"];
[section1 addObject:#"row2"];
NSMutableArray* section2 = [NSMutableArray array];
[section1 addObject:#"row1"];
[section1 addObject:#"row2"];
[_rows addObject:section1];
[_rows addObject:section2];
#pragma mark - Table view data source
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return [_sections count];
}
-(NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
{
return [_sections objectAtIndex:section];
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [[_rows objectAtIndex:section] count];
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell* cell = [tableView dequeueReusableCellWithIdentifier:nil];
if(!cell)
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:nil];
cell.textLabel.text = [[_rows objectAtIndex:[indexPath section]] objectAtIndex:[indexPath row]];
return cell;
}
I have written the following code for a FirstLevelController implementation file, but the Disclosure Buttons, icons don't display in the view. Have checked the code, but can't figure out what's wrong.
FirstLevelController.m:
#import "BiDFirstLevelController.h"
#import "BidSecondLevelController.h"
#import "BiDDisclosureButtonController.h"
#implementation BiDFirstLevelController
#synthesize controllers;
- (void)viewDidLoad
{
[super viewDidLoad];
self.title = #"First Level";
NSMutableArray *array = [[NSMutableArray alloc]init];
// Disclosure button
BiDDisclosureButtonController *disclosureButtonController = [[BiDDisclosureButtonController alloc]initWithStyle:UITableViewStylePlain];
disclosureButtonController.title = #"Disclosure Buttons";
disclosureButtonController.rowImage = [UIImage imageNamed:#"disclosureButtonControllerIcon.png"];
[array addObject:disclosureButtonController];
}
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidUnload
{
[super viewDidUnload];
self.controllers = nil;
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
// Return the number of sections.
return 0;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
// Return the number of rows in the section.
return [self.controllers count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *FirstLevelCell = #"FirstLevelCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:FirstLevelCell];
if (cell == nil) {
cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:FirstLevelCell];
}
// Configure the cell...
NSUInteger row = [indexPath row];
BiDSecondLevelController *controller = [controllers objectAtIndex:row];
cell.textLabel.text = controller.title;
cell.imageView.image = controller.rowImage;
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
return cell;
}
#pragma mark - Table view delegate
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
NSUInteger row = [indexPath row];
BiDSecondLevelController *nextController = [self.controllers objectAtIndex:row];
[self.navigationController pushViewController:nextController animated:YES];
}
#end
Your implementation of numberOfSectionsInTableView: returns 0, which means the table view should always be empty. Since returning 0 from this method doesn't make sense, I guess it's a typo.
I'm having trouble adding cells with different content to my app. I know (or think) this needs to be done using an array, but I'm new to xcode and objective-c so I'm not exactly sure how to do this. Any help is much appreciated. Thanks.
Here is a copy of my current code:
#import "RootViewController.h"
#import "CustomCell.h"
#implementation RootViewController
- (void)viewDidLoad
{
[super viewDidLoad];
}
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
}
- (void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:animated];
}
- (void)viewWillDisappear:(BOOL)animated
{
[super viewWillDisappear:animated];
}
- (void)viewDidDisappear:(BOOL)animated
{
[super viewDidDisappear:animated];
}
/*
// Override to allow orientations other than the default portrait orientation.
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
// Return YES for supported orientations.
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
*/
// Customize the number of sections in the table view.
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return 5;
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
return 100;
}
// Customize the appearance of table view cells.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
CustomCell *cell = (CustomCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[CustomCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
}
cell.imageViews.image = [UIImage imageNamed:#"captainaq_4.jpg"];
cell.firstLabel.text = #"name ";
cell.secondLabel.text = #"second name";
cell.thirdLabel.text = #"third name";
cell.thirdLabel.textAlignment = UITextAlignmentCenter;
// Configure the cell.
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:[NSArray arrayWithObject: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;
}
*/
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
/*
<#DetailViewController#> *detailViewController = [[<#DetailViewController#> alloc] initWithNibName:#"<#Nib name#>" bundle:nil];
// ...
// Pass the selected object to the new view controller.
[self.navigationController pushViewController:detailViewController animated:YES];
[detailViewController release];
*/
}
- (void)didReceiveMemoryWarning
{
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Relinquish ownership any cached data, images, etc that aren't in use.
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Relinquish ownership of anything that can be recreated in viewDidLoad or on demand.
// For example: self.myOutlet = nil;
}
- (void)dealloc
{
[super dealloc];
}
#end
First, note that cellForRowAtIndexPath is being called multiple times-- once for each cell. I think your best option would be to declare an array, and populate it with the objects you want displayed, as follows:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
static NSString *days[] = {#"Mon", #"Tues", #"Wed", #"Thurs", #"Fri", #"Sat", #"Sun"};
static NSString *CellIdentifier = #"Cell";
CustomCell *cell = (CustomCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[CustomCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
}
[[cell textLabel] setText:days[indexPath.row]];
return cell;
}
Or populate the array somewhere else, if you need to manipulate the objects within it. In that case (assuming your array is populated with strings), your call to setText would look like:
[[cell textLabel] setText:[yourArray objectAtIndex:indexPath.row]];
It also appears you want to have a header with an image in it. In that case, use:
- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section{
//create your UIImageView and add your image
return yourImageView;
}
ok... as far as I have seen , I dont think the following is valid.
cell.imageViews.image = [UIImage imageNamed:#"captainaq_4.jpg"];
cell.firstLabel.text = #"name ";
cell.secondLabel.text = #"second name";
cell.thirdLabel.text = #"third name";
cell.thirdLabel.textAlignment = UITextAlignmentCenter;
Correct me if I am wrong...
As far as I understood your question, what you got to do is that create labels and add them either programmatically or through Interface Builder ( whichever is easier for you) so that you can display whatever contents you want in the cell...
Here is an example of what you can do..
// Customize the appearance of table view cells.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = (UITableViewCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier] autorelease];
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator; // adding indicator to the rows
}
// Configure the cell...
switch (indexPath.row) {
case 0:
cell.textLabel.text = #"John Doe";
cell.detailTextLabel.text = #"DEPT";
//cell.imageView.image = [UIImage imageNamed:#"meeting_color.png"];
break;
case 1:
cell.textLabel.text = #"Mary Smith";
cell.detailTextLabel.text = #"DEPT";
//cell.myImageView.image = [UIImage imageNamed:#"call_color.png"];
break;
case 2:
cell.textLabel.text = #"Bob Wong";
cell.detailTextLabel.text = #"DEPT";
//cell.myImageView.image = [UIImage imageNamed:#"calendar_color.png"];
break;
default:
break;
}
return cell;
}
Again that is a very simple way you can add content to a tableview...
You can create several different UITableViewCell or your own custom cell class and add it into array and display it later under:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
}
With this, you can have several distinct custom cell (What I mean distinct is totally different cell, such as first cell with image while the other doesn't have image).
While the other alternative is to do it inside the
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
as shown by using switch case. Either ways, it's about preference.
I suggest you to learn more about the basic use of classes, such as NSArray, NSMutableArray, and writing Objective-C language first. While it doesn't help much with learning developing app, it will speed up the learning curve during the real implementation of building program in Cocoa environment.