objc tableheader hides tablerows? - iphone

I have a tableView where I added a header section. Somehow the header hides the rows... When I remove the header section, the rows are visible. When I add the header section, it hides the rows. Normally the rows shall be visible after the header section. I have no glue why this does not work...
I have a similar tableView and there it works perfectly with the same setup, header and rows are displayed.
The table header section and rows shall be visible at the same time. How can I do this?
Below the code:
LocationViewController.h
#import <UIKit/UIKit.h>
#import "SingletonClass.h"
#import "WebApi.h"
#import <AFNetworking/UIImageView+AFNetworking.h>
#interface LocationViewController : UITableViewController
#property (nonatomic, strong) SingletonClass *sshare;
#property (nonatomic, strong) WebApi *swebapi;
#property (strong, nonatomic) IBOutlet UITableView *tableView;
#property (strong, nonatomic) NSString *locationID;
#end
LocationViewController.m
#import "LocationViewController.h"
#interface LocationViewController ()
#end
#implementation LocationViewController
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
}
return self;
}
- (void)vinit {
self.sshare = [SingletonClass sharedInstance];
self.swebapi = [[WebApi alloc] init];
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(handleNotification:) name:#"reloadDetails" object:nil ];
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(handleNotification:) name:NFlocationReload object:nil ];
}
- (void)viewDidLoad
{
[self vinit];
[self.navigationController setNavigationBarHidden:NO animated:NO];
[super viewDidLoad];
self.tableView.tableFooterView = [[UIView alloc] init];
[self getData];
}
- (void)viewDidAppear:(BOOL)animated
{
[self.navigationController setNavigationBarHidden:NO animated:NO];
}
-(void)handleNotification:(NSNotification *)message {
if ([[message name] isEqualToString:#"reloadDetails"]) {
[self.tableView reloadData];
}
if ([[message name] isEqualToString:NFlocationReload]) {
DLog(#"%#, lData", self.sshare.lData);
[self.tableView reloadData];
}
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return self.sshare.lData.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:#"locationCell" forIndexPath:indexPath];
NSString *foo = [NSString stringWithFormat:#"row %ld", (long)indexPath.row];
cell.textLabel.text = foo;
DLog(#"logged: %#", foo);
cell.backgroundColor = [UIColor purpleColor];
return cell;
}
-(void)getData {
[self.swebapi getLocationStream:self.locationID];
}
#pragma mark table header image and size
- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section {
UIImageView *BGView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 10, 320, 174)];
[BGView setBackgroundColor:[UIColor whiteColor]];
UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 320, 169)];
[imageView setBackgroundColor:[UIColor orangeColor]];
imageView.contentMode = UIViewContentModeScaleAspectFill;
[imageView setClipsToBounds:YES];
NSString *photoURL;
if (self.sshare.imageDetails) {
photoURL = self.sshare.imageDetails.url
[imageView setImageWithURL:[NSURL URLWithString:photoURL] placeholderImage:[UIImage imageNamed:#"foo.jpg"]];
[BGView addSubview:imageView];
}
return BGView;
}
#end

It's missing a delegate method. From the docs on viewForHeaderInSection: ...
The returned object can be a UILabel or UIImageView object, as well as
a custom view. This method only works correctly when
tableView:heightForHeaderInSection: is also implemented.
So add...
- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section {
return 174;
}

Related

Top cell name changes when changing any cell name

I have a HabitViewController (UITableViewController) with a button to add cells. When a cell is added its default title is "New Habit". Then the user can tap the cell and a detailViewController appears with a picker to choose the habit. The cell.label.text is then set to the selected option in the picker. This is where my problem is. For example, if i added 3 cells by pressing the button three times, then selected the third row. And then I chose the option Hello World. The top cell would be named hello world, not the third cell. Is this normal? Here is my code:
HabitViewController.h
#import <UIKit/UIKit.h>
#import "DetailViewController.h"
#interface HabitViewController : UITableViewController <DetailViewDelegate> {
}
#property (nonatomic, strong) NSString *cellNameSender;
#property (strong, nonatomic) IBOutlet UITableView *tableView;
#property (strong, nonatomic) NSIndexPath *selectedCell;
#end
.m
#import "HabitViewController.h"
#import "DetailViewController.h"
#interface HabitViewController () {
NSMutableArray *myCells;
}
#property(strong, nonatomic) NSString *cellName2;
#end
#implementation HabitViewController
#synthesize cellNameSender, selectedCell;
- (void)awakeFromNib
{
[super awakeFromNib];
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
self.navigationItem.leftBarButtonItem = self.editButtonItem;
[self.editButtonItem setTintColor:[UIColor colorWithRed:.33 green:.33 blue:.33 alpha:1]];
UIBarButtonItem *addButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:#selector(insertNewObject:)];
self.navigationItem.rightBarButtonItem = addButton;
addButton.tintColor = [UIColor colorWithRed:.33 green:.33 blue:.33 alpha:1];
[self.navigationController.navigationBar setBackgroundImage:[UIImage imageNamed:#"nav_bar.png"] forBarMetrics:UIBarMetricsDefault];
}
- (void)viewDidAppear:(BOOL)animated {
[self.tableView reloadData];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
}
- (void)insertNewObject:(id)sender
{
if (!myCells) {
myCells = [[NSMutableArray alloc] init];
}
[myCells insertObject:#"New Habit" atIndex:0];
NSIndexPath *path = [NSIndexPath indexPathForRow:0 inSection:0];
[self.tableView insertRowsAtIndexPaths:#[path] withRowAnimation:UITableViewRowAnimationAutomatic];
}
#pragma mark - Table View
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return myCells.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:#"Cell" forIndexPath:indexPath];
cell.textLabel.text = myCells[indexPath.row];
return cell;
}
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
return YES;
}
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
if (editingStyle == UITableViewCellEditingStyleDelete) {
[myCells removeObjectAtIndex:indexPath.row];
[tableView deleteRowsAtIndexPaths:#[indexPath] withRowAnimation:UITableViewRowAnimationFade];
} else if (editingStyle == UITableViewCellEditingStyleInsert) {
}
}
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath
{
}
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath
{
return YES;
}
-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
DetailViewController *vc = segue.destinationViewController;
vc.delegate = self;
}
#pragma mark - DetailViewDelegate
-(void)setCellName2:(NSString *)cellName {
NSInteger selectedRow = [self.tableView indexPathForSelectedRow].row;
[myCells replaceObjectAtIndex:selectedRow withObject:cellName];
[self.tableView reloadData];
}
#end
DetailViewController.h
#import <UIKit/UIKit.h>
#protocol DetailViewDelegate <NSObject>
- (void)setCellName2:(NSString *)cellName;
#end
#interface DetailViewController : UIViewController<UIPickerViewDelegate> {
NSArray *PickerData;
}
#property (weak, nonatomic) IBOutlet UITextField *habitField;
#property (strong, nonatomic) UIToolbar *toolBar;
#property (weak, nonatomic) id<DetailViewDelegate> delegate;
#property (nonatomic, strong) NSString *cellName;
#property (nonatomic, strong) UIBarButtonItem *backButton;
#property (nonatomic, strong) UIPickerView *Picker;
#property (retain, nonatomic) NSArray *PickerData;
#property (weak, nonatomic) IBOutlet UIBarButtonItem *doneButton;
#property (nonatomic, strong) UIBarButtonItem *barDoneButton;
#property (nonatomic, strong) UIBarButtonItem *flexSpace;
#property (nonatomic, strong) NSString *customHabit;
- (IBAction)backToRoot:(id)sender;
#end
.m
#import "DetailViewController.h"
#import "HabitViewController.h"
#interface DetailViewController () {
}
#end
#implementation DetailViewController
#synthesize PickerData, Picker, toolBar, backButton, barDoneButton, flexSpace;
- (void)viewDidLoad
{
[super viewDidLoad];
self.pickerData = #[#"Posture",#"Paludies Abbs",#"Custom"];
[self.delegate setCellName2:self.cellName];
toolBar = [[UIToolbar alloc] init];
toolBar.barStyle = UIBarStyleBlackOpaque;
[toolBar sizeToFit];
[toolBar setBackgroundImage:[UIImage imageNamed:#"red_navigation_bar.png"] forToolbarPosition:UIToolbarPositionAny barMetrics:UIBarMetricsDefault];
flexSpace = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace
target:self
action:nil];
// Done button on toolbar
barDoneButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone
target:self
action:#selector(releasePicker)];
// Back button on toolbar
backButton = [[UIBarButtonItem alloc] initWithTitle:#"Back"style:UIBarButtonItemStyleDone
target:self
action:#selector(backToPicker)];
// Habit PickerView
Picker = [[UIPickerView alloc] init];
Picker.showsSelectionIndicator = YES;
Picker.delegate = self;
barDoneButton.image = [UIImage imageNamed:#"button.png"];
// Toolbar above picker
[toolBar setItems:#[flexSpace, barDoneButton] animated:YES];
self.habitField.inputAccessoryView = toolBar;
[self.habitField addTarget:self action:#selector(customHabitChanged) forControlEvents:UIControlEventEditingChanged];
[self.habitField setInputView:Picker];
}
- (void)customHabitChanged {
self.customHabit = self.habitField.text;
self.cellName = self.customHabit;
NSLog(#"%#", self.customHabit);
[self.delegate setCellName2:self.cellName];
}
- (void)backToPicker {
[toolBar setItems:#[flexSpace, barDoneButton] animated:YES];
[self.habitField resignFirstResponder];
[self.habitField setInputView:Picker];
[self.habitField becomeFirstResponder];
}
- (void)releasePicker {
[self.habitField resignFirstResponder];
[self.habitField setInputView:Picker];
[toolBar setItems:#[flexSpace, barDoneButton] animated:YES];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (IBAction)backToRoot:(id)sender {
[self.navigationController popToRootViewControllerAnimated:YES];
}
-(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView {
return 1;
}
-(NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component {
return [PickerData count];
}
-(NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component {
return [PickerData objectAtIndex:row];
}
-(void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component {
[self.delegate setCellName2:self.PickerData[row]];
/* int select = row;
if (select == 0) {
self.cellName = #"Posture";
self.habitField.text = #"Posture";
[self.delegate setCellName2:self.cellName];
NSLog(#"%# Is Selected", self.cellName);
}
if (select == 1) {
self.cellName = #"Palaudies Abbs";
self.habitField.text = #"Palaudies Abbs";
[self.delegate setCellName2:self.cellName];
NSLog(#"%# Is Selected", self.cellName);
}
if (select == 2) {
[self.habitField resignFirstResponder];
[self.habitField setInputView:nil];
[self.habitField becomeFirstResponder];
[toolBar setItems:#[backButton, flexSpace, barDoneButton] animated:YES];
self.habitField.text = #"";
self.habitField.placeholder = #"Custom";
[self.delegate setCellName2:self.cellName];
NSLog(#"%# Is Selected", self.cellName);
*/ //}
}
IN cellForRowAtIndexPath
if(indexPath.row == object.count-1)
cell.textLabel.text = #"New Habit";
else
{
NSDate *object = _objects[indexPath.row];
cell.textLabel.text = [object description];
}
return cell;
Your thinking on this is not right. You shouldn't think in terms of setting the title of a cell, but instead think about updating the array that you use to populate the table view with data. Here is a simplified version of your app. When you click the add button it adds a new cell in row 0 with the label's text being "New Habit". When you click on that cell (or any other), it takes you to the controller with the picker view where you choose a string, and that string is passed back to the table view in a delegate method. In that method I update the array, myCells with that passed in string at the correct index gotten from the table's indexPathForSelectedRow, and then call reloadData on the table view to update it's view.
This is the table view controller:
#import "TableController.h"
#import "ViewController.h"
#interface TableController ()
#property (strong,nonatomic) NSMutableArray *myCells;
#end
#implementation TableController
- (IBAction)insertNewObject:(UIBarButtonItem *)sender
{
if (!self.myCells) {
self.myCells = [[NSMutableArray alloc] init];
}
[self.myCells insertObject:#"New Habit" atIndex:0];
NSIndexPath *path = [NSIndexPath indexPathForRow:0 inSection:0];
[self.tableView insertRowsAtIndexPaths:#[path] withRowAnimation:UITableViewRowAnimationAutomatic];
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return self.myCells.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:#"Cell" forIndexPath:indexPath];
cell.textLabel.text = self.myCells[indexPath.row];
return cell;
}
-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
ViewController *vc = segue.destinationViewController;
vc.delegate = self;
}
-(void)setCellName2:(NSString *)cellName {
NSInteger selectedRow = [self.tableView indexPathForSelectedRow].row;
[self.myCells replaceObjectAtIndex:selectedRow withObject:cellName];
[self.tableView reloadData];
}
Here is the controller (ViewController) with the picker view:
#interface ViewController ()
#property (strong,nonatomic) NSArray *pickerData;
#end
#implementation ViewController
- (void)viewDidLoad
{
[super viewDidLoad];
self.pickerData = #[#"Posture",#"Paludies Abbs",#"Custom"];
}
-(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView {
return 1;
}
-(NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component {
return [self.pickerData count];
}
-(NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component {
return [self.pickerData objectAtIndex:row];
}
-(void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component {
[self.delegate setCellName2:self.pickerData[row]];
}

Setting the UITableViewCell from a picker selection

So far I have made a UITableView in a HabitViewControlle with a button to add a new cell. When the cell is tapped, a detialViewController is revealed. In this View their is a textField, that when tapped a UIPicker is launched. I want to set the title of a tableViewCell to the picker selection.. I have made a string called cellName and I can send it to the other ViewController. I also made it so that when the picker is changed, I set the string cellName to the title I want the cell to be when the picker selection is selected. So I almost have it ready, except actually setting the cell title to the string when the cellName is set, and the picker selection has changed. If this didn't make sense, send a comment to me, and I will try to help, because I hard time writing my question into words
habitViewController.h
#import <UIKit/UIKit.h>
#import "DetailViewController.h"
#interface HabitViewController : UITableViewController <DetailViewDelegate> {
UITableViewCell *cell;
}
#end
.m
#import "HabitViewController.h"
#import "DetailViewController.h"
#interface HabitViewController () {
NSMutableArray *_objects;
}
#property(strong, nonatomic) NSString *cellName2;
#end
#implementation HabitViewController
- (void)awakeFromNib
{
[super awakeFromNib];
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
self.navigationItem.leftBarButtonItem = self.editButtonItem;
[self.editButtonItem setTintColor:[UIColor colorWithRed:.33 green:.33 blue:.33 alpha:1]];
UIBarButtonItem *addButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:#selector(insertNewObject:)];
self.navigationItem.rightBarButtonItem = addButton;
addButton.tintColor = [UIColor colorWithRed:.33 green:.33 blue:.33 alpha:1];
[self.navigationController.navigationBar setBackgroundImage:[UIImage imageNamed:#"nav_bar.png"] forBarMetrics:UIBarMetricsDefault];
//if ([cellName isEqualToString:#"Hello World"]) {
// }
}
- (void)viewDidAppear:(BOOL)animated {
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (void)insertNewObject:(id)sender
{
if (!_objects) {
_objects = [[NSMutableArray alloc] init];
}
[_objects insertObject:[NSDate date] atIndex:0];
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:0 inSection:0];
[self.tableView insertRowsAtIndexPaths:#[indexPath] withRowAnimation:UITableViewRowAnimationAutomatic];
}
#pragma mark - Table View
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return _objects.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
cell = [tableView dequeueReusableCellWithIdentifier:#"cell" forIndexPath:indexPath];
NSDate *object = _objects[indexPath.row];
cell.textLabel.text = [object description];
cell.textLabel.text = #"New Habit";
NSLog(#"%#",self.cellName2);
return cell;
}
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
// Return NO if you do not want the specified item to be editable.
return YES;
}
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
if (editingStyle == UITableViewCellEditingStyleDelete) {
[_objects removeObjectAtIndex:indexPath.row];
[tableView deleteRowsAtIndexPaths:#[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)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
if([segue.identifier isEqualToString:#"showDetail"]) {
/* assigning self as delegate, telling the detail view that I implement
* setCellName2:, so it (the detailVC) can call it whenever it wants to.
*/
[segue.destinationViewController setDelegate:self];
}
}
#pragma mark - DetailViewDelegate
// note: this is just a property setter so this is not actually needed
- (void)setCellName2:(NSString *)cellName {
cellName = cellName;
NSLog(#"%#",cellName);
cell.textLabel.text = cellName;
}
#end
DetailViewController.h
#import <UIKit/UIKit.h>
#protocol DetailViewDelegate <NSObject>
- (void)setCellName2:(NSString *)cellName;
#end
#interface DetailViewController : UIViewController<UIPickerViewDelegate> {
NSArray *PickerData;
}
#property (weak, nonatomic) IBOutlet UITextField *habitField;
#property (weak, nonatomic) id<DetailViewDelegate> delegate;
#property (nonatomic, strong) NSString *cellName;
#property (retain, nonatomic) NSArray *PickerData;
#property (weak, nonatomic) IBOutlet UIBarButtonItem *doneButton;
- (IBAction)backToRoot:(id)sender;
#end
.m
#import "DetailViewController.h"
#import "HabitViewController.h"
#interface DetailViewController () {
UITableViewCell *_cell;
}
#end
#implementation DetailViewController
#synthesize PickerData;
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
NSArray *array = [[NSArray alloc] initWithObjects:#"Posture",#"Paludies Abbs",#"Custom", nil];
self.PickerData = array;
[self.delegate setCellName2:self.cellName];
UIToolbar *toolBar = [[UIToolbar alloc] init];
toolBar.barStyle = UIBarStyleBlackOpaque;
[toolBar sizeToFit];
[toolBar setBackgroundImage:[UIImage imageNamed:#"red_navigation_bar.png"] forToolbarPosition:UIToolbarPositionAny barMetrics:UIBarMetricsDefault];
UIBarButtonItem *flexSpace = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace
target:self
action:nil];
UIBarButtonItem *doneButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone
target:self
action:#selector(releasePicker)];
UIPickerView *Picker = [[UIPickerView alloc] init];
Picker.showsSelectionIndicator = YES;
Picker.delegate = self;
doneButton.image = [UIImage imageNamed:#"button.png"];
[toolBar setItems:#[flexSpace, doneButton] animated:YES];
self.habitField.inputAccessoryView = toolBar;
[self.habitField setInputView:Picker];
}
- (void)releasePicker {
[self.habitField resignFirstResponder];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (IBAction)backToRoot:(id)sender {
[self.navigationController popToRootViewControllerAnimated:YES];
}
-(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView {
return 1;
}
-(NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component {
return [PickerData count];
}
-(NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component {
return [self.PickerData objectAtIndex:row];
}
-(void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component {
int select = row;
if (select == 0) {
self.cellName = #"Posture";
[self.view reloadInputViews];
NSLog(#"%# Is Selected", self.cellName);
}
}
#end
I think that you want to use your delegate to set your picker in the didSelectRow method. Like this:
DetailViewController.m:
- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component {
int select = row;
if (select == 0) {
self.cellName = #"Posture";
[self.delegate setCellName2:self.cellName];
NSLog(#"%# Is Selected", self.cellName);
}
}
and back in your habitViewController:
- (void)setCellName2:(NSString *)cellName {
cellName = cellName;
NSLog(#"%#",cellName);
selectedCell.textLabel.text = cellName;
[self.tableView reloadData];
}
You also have a few problems with "cell". Assuming you have many rows, this will get re-used over and over again and will always contain the last cell it displayed, which will seldom be what you expect.
I would rename it to selectedCell and set it when the cell is touched and your other view triggered.
#interface HabitViewController : UITableViewController <DetailViewDelegate> {
UITableViewCell *savedCell;
}
I would set it here:
-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
if([segue.identifier isEqualToString:#"showDetail"]) {
if ([sender isKindOfClass[UITableViewCell class]]) {
savedCell = (UITableViewCell *)sender;
}
/* assigning self as delegate, telling the detail view that I implement
* setCellName2:, so it (the detailVC) can call it whenever it wants to.
*/
[segue.destinationViewController setDelegate:self];
}
}
I would just use a temp cell in this method:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:#"cell" forIndexPath:indexPath];
NSDate *object = _objects[indexPath.row];
cell.textLabel.text = [object description];
cell.textLabel.text = #"New Habit";
NSLog(#"%#",self.cellName2);
return cell;
}
I fixed it with this
First in your habitViewController.h do the following :
#import <UIKit/UIKit.h>
#import "DetailViewController.h"
#interface HabitViewController : UITableViewController <DetailViewDelegate> {
UITableViewCell *cell;
}
#property (nonatomic, strong) NSString *cellNameSender;
#end
Then in your .m replace the code that looks like this with the following :
- (void)setCellName2:(NSString *)cellName {
cellName = cellName;
NSLog(#"%#",cellName);
self.cellNameSender = cellName;
}
#end
and the same with this
- (void)viewDidAppear:(BOOL)animated {
cell.textLabel.text = self.cellNameSender;
}
Now the tableViewCell should show the posture is posture is selected.

Hovering UITableViewController over a UIViewController on iPhone not displaying cell content (e.g. FB notification view)

I am trying to create a hovering UITableViewController over a UIViewController. I have managed to open the TableView over the ViewController. (Picture)
When first loading the view the data is loaded and I can see the rows for split second, but then it disappears. I understand that I must be assigning something over the actual view in the memory. However I can't fins what I am doing wrong.
Here is how I try to do it:
I create it as a object and load it with animation
BINotificationView *notifView = [[BINotificationView alloc] init];
notifView.view.frame = CGRectMake(10, 10, 300, 400);
[notifView.tableView setDataSource:notifView];
[notifView.tableView setDelegate:notifView];
[notifView setResultSet:_notifSet];
notifView.view.layer.masksToBounds = YES;
[self.view addSubview:notifView.view];
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.2];
[notifView.view setAlpha:1.0];
[UIView commitAnimations];
[UIView setAnimationDuration:0.0];
When view is loaded the tableview is populated (with same cell identifier in storyboard)
#interface BINotificationView ()
#end
#implementation BINotificationView
#synthesize resultSet;
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
}
-(void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
self.view.alpha = 0.0;
self.view.layer.cornerRadius = 5;
self.view.layer.borderWidth = 3.0f;
self.view.backgroundColor = [UIColor whiteColor];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
if (resultSet.count) {
return resultSet.count;
}
return 1;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *cellIdentifier = #"notif";
NotificationCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
if (cell == nil) {
cell = [[NotificationCell alloc] init];
cell.frame = CGRectMake(0, 0, 300, 80);
}
cell.notification = [[UITextView alloc] initWithFrame:CGRectMake(0, 0, 280, 80)];
[cell addSubview:cell.notification];
[cell.notification setFont:[UIFont fontWithName:#"AvenirNextCondensed-Regular" size:16]];
if (resultSet.count) {
BINotification *obj = [resultSet objectAtIndex:indexPath.row];
cell.notification.text = obj.type;
}
else {
cell.notification.text = #"Empty List";
}
[cell.notification setEditable:NO];
return cell;
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
return 80.0;
}
#pragma mark - Table view delegate
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
}
#end
My UITableViewCell is defined as
#interface NotificationCell : UITableViewCell
#property (nonatomic, retain) IBOutlet UITextView *notification;
#end
#implementation NotificationCell
#synthesize notification;
#end
The UITableViewController .h file is like this
#interface BINotificationView : UITableViewController
#property (nonatomic, strong) NSMutableArray *resultSet;
#end
Thanks for your help
It looks like notifView is released when its scope ends. But its view is added as a subview, this may explain why it is seen for a while. The solution is to extend the scope of notifView, try making it a property of the controller which adds notifView's view as a subview.
notification = [[UITextView alloc] initWithFrame:CGRectMake(0, 0, 270, 80)];
[self addSubview:notification];
Add this in your UITableViewCell file

Xcode Error with Linking View Controllers with UITableView

I have made an a Tabbed Bar Application in Xcode and the First Tab is Decors. I asked a previous question on integrating a XIB Project into a StoryBoard Tabbed Project.
I have Been Successfully in the integration of this, And it works but when I push on one of the Deocrs, Or Table Cells I get the following Error:
Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: '-[UIViewController _loadViewFromNibNamed:bundle:] loaded the "SelectedCellViewController" nib but the view outlet was not set.
If I put the Original Alert into my project The cell linking starts to work again.
Below are pics, links and code to my project, So you can see how it works
StoryBoard Project
XIB Project
DecorsViewController_iPhone.h
#import <UIKit/UIKit.h>
#interface DecorsViewController_iPhone : UIViewController
{
IBOutlet UITableView *tableViewDecors;
NSArray *sitesArray;
NSArray *imagesArray;
}
#property (nonatomic, retain) UITableView *tableViewDecors;
#property (nonatomic, retain) NSArray *sitesArray;
#property (nonatomic, retain) NSArray *imagesArray;
#end
DecorsViewController_iPhone.m
#import "DecorsViewController_iPhone.h"
#import "SelectedCellViewController.h"
#interface DecorsViewController_iPhone ()
#end
#implementation DecorsViewController_iPhone
#synthesize tableViewDecors;
#synthesize sitesArray;
#synthesize imagesArray;
#pragma mark - View lifecycle
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {
// Load up the sitesArray with a dummy array : sites
NSArray *sites = [[NSArray alloc] initWithObjects:#"a", #"b", #"c", #"d", #"e", #"f", #"g", #"h", nil];
self.sitesArray = sites;
//[sites release];
UIImage *active = [UIImage imageNamed:#"a.png"];
UIImage *ae = [UIImage imageNamed:#"b.png"];
UIImage *audio = [UIImage imageNamed:#"c.png"];
UIImage *mobile = [UIImage imageNamed:#"d.png"];
UIImage *net = [UIImage imageNamed:#"e.png"];
UIImage *photo = [UIImage imageNamed:#"f.png"];
UIImage *psd = [UIImage imageNamed:#"g.png"];
UIImage *vector = [UIImage imageNamed:#"h.png"];
NSArray *images = [[NSArray alloc] initWithObjects: active, ae, audio, mobile, net, photo, psd, vector, nil];
self.imagesArray = images;
//[images release];
[super viewDidLoad];
}
#pragma mark - Table View datasource methods
// Required Methods
// Return the number of rows in a section
- (NSInteger)tableView:(UITableView *)table numberOfRowsInSection:(NSInteger)section {
return [sitesArray count];
}
// Returns cell to render for each row
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"CellIdentifier";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
}
// Configure cell
NSUInteger row = [indexPath row];
// Sets the text for the cell
//cell.textLabel.text = [sitesArray objectAtIndex:row];
// Sets the imageview for the cell
cell.imageView.image = [imagesArray objectAtIndex:row];
// Sets the accessory for the cell
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
// Sets the detailtext for the cell (subtitle)
//cell.detailTextLabel.text = [NSString stringWithFormat:#"This is row: %i", row + 1];
return cell;
}
// Optional
// Returns the number of section in a table view
-(NSInteger) numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
}
#pragma mark -
#pragma mark Table View delegate methods
// Return the height for each cell
-(CGFloat) tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
return 78;
}
// Sets the title for header in the tableview
-(NSString *) tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
return #"Decors";
}
// Sets the title for footer
-(NSString *) tableView:(UITableView *)tableView titleForFooterInSection:(NSInteger)section {
return #"Decors";
}
// Sets the indentation for rows
-(NSInteger) tableView:(UITableView *)tableView indentationLevelForRowAtIndexPath:(NSIndexPath *)indexPath {
return 0;
}
// Method that gets called from the "Done" button (From the #selector in the line - [viewControllerToShow.navigationItem setRightBarButtonItem:[[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:#selector(dismissView)] autorelease]];)
- (void)dismissView {
[self dismissViewControllerAnimated:YES completion:NULL];
}
// This method is run when the user taps the row in the tableview
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
[tableView deselectRowAtIndexPath:indexPath animated:YES];
SelectedCellViewController *viewControllerToShow = [[SelectedCellViewController alloc] initWithNibName:#"SelectedCellViewController" bundle:[NSBundle mainBundle]];
[viewControllerToShow setLabelText:[NSString stringWithFormat:#"You selected cell: %d - %#", indexPath.row, [sitesArray objectAtIndex:indexPath.row]]];
[viewControllerToShow setImage:(UIImage *)[imagesArray objectAtIndex:indexPath.row]];
[viewControllerToShow setModalPresentationStyle:UIModalPresentationFormSheet];
[viewControllerToShow setModalTransitionStyle:UIModalTransitionStyleFlipHorizontal];
[viewControllerToShow.navigationItem setRightBarButtonItem:[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:#selector(dismissView)]];
UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:viewControllerToShow];
viewControllerToShow = nil;
[self presentViewController:navController animated:YES completion:NULL];
navController = nil;
// UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Tapped row!"
// message:[NSString stringWithFormat:#"You tapped: %#", [sitesArray objectAtIndex:indexPath.row]]
// delegate:nil
// cancelButtonTitle:#"Yes, I did!"
// otherButtonTitles:nil];
// [alert show];
// [alert release];
}
#pragma mark - Memory management
- (void)didReceiveMemoryWarning {
NSLog(#"Memory Warning!");
[super didReceiveMemoryWarning];
}
- (void)viewDidUnload {
self.sitesArray = nil;
self.imagesArray = nil;
[super viewDidUnload];
}
//- (void)dealloc {
//[sitesArray release];
//[imagesArray release];
// [super dealloc];
//}
#end
SelectedCellViewController.h
#interface SelectedCellViewController : UIViewController {
NSString *labelText;
UIImage *image;
IBOutlet UILabel *label;
IBOutlet UIImageView *imageView;
}
#property (nonatomic, copy) NSString *labelText;
#property (nonatomic, retain) UIImage *image;
#end
viewControllerToShow.m
#import "SelectedCellViewController.h"
#implementation SelectedCellViewController
#synthesize labelText;
#synthesize image;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
if ((self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil])) {
}
return self;
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
}
#pragma mark - View lifecycle
- (void)viewDidLoad {
[super viewDidLoad];
[label setText:self.labelText];
[imageView setImage:self.image];
}
- (void)viewDidUnload {
self.labelText = nil;
self.image = nil;
//[label release];
// [imageView release];
[super viewDidUnload];
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
#end
check the class inherited by the "The controller to be shown on click".XIB in the identity inspector .It seems you have not set the class for the "to be shown" XIB and the view outlet of the same XIB.

UI Navigation Controller Showing Null for switching to detail view

I have a tab based application. On the first tab I have several views one of which is a navigation controller. My goal is to load this list view(working) then goto a detailview on the cell click(not working).
On the cell click I am logging
NSLog(#"%#",self.navigationController);
which is returning a null. I can only assume that I have not done something right with setting up the navigation controller but I do not know what.
on button click the table view is called:
#import "Reviews.h"
#import "XMLParser.h"
#import "Detailed_Review.h"
#implementation Reviews
#synthesize reviewsTableView;
XMLParser *xmlParser;
CGRect dateFrame;
UILabel *dateLabel;
CGRect contentFrame;
UILabel *contentLabel;
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
#pragma mark -
#pragma mark Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [[xmlParser reviews] count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
Review_Object *currentReview = [[xmlParser reviews] objectAtIndex:indexPath.row];
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
CGRect contentFrame = CGRectMake(10, 2, 265, 30);
UILabel *contentLabel = [[UILabel alloc] initWithFrame:contentFrame];
contentLabel.tag = 0011;
contentLabel.numberOfLines = 2;
contentLabel.font = [UIFont boldSystemFontOfSize:12];
[cell.contentView addSubview:contentLabel];
CGRect reviewFrame = CGRectMake(10, 40, 265, 10);
UILabel *reviewLabel = [[UILabel alloc] initWithFrame:reviewFrame];
reviewLabel.tag = 0012;
reviewLabel.font = [UIFont systemFontOfSize:10];
[cell.contentView addSubview:reviewLabel];
}
UILabel *contentLabel = (UILabel *)[cell.contentView viewWithTag:0011];
contentLabel.text = [currentReview rating];
UILabel *dateLabel = (UILabel *)[cell.contentView viewWithTag:0012];
dateLabel.text = [currentReview review];
return cell;
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
return 55;
}
#pragma mark -
#pragma mark Table view delegate
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
Detailed_Review *dvController = [[Detailed_Review alloc] initWithNibName:#"Detailed_Review" bundle:[NSBundle mainBundle]];
[self.navigationController pushViewController:dvController animated:YES];
NSLog(#"%#",self.navigationController);
}
#pragma mark - View lifecycle
- (void)viewDidLoad
{
[super viewDidLoad];
xmlParser = [[XMLParser alloc] loadXMLByURL:#"http://www.mywebsite.com/api/reviews/xml.php?page=1"];
self.title = #"Reviews";
}
- (void)viewDidUnload
{
[self setReviewsTableView:nil];
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (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];
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
}
#end
xib photos:
.h file:
#import <UIKit/UIKit.h>
#import "XMLParser.h"
#import "Review_Object.h"
#interface Reviews : UIViewController
#property (retain, nonatomic) IBOutlet UITableView *reviewsTableView;
#end
You omitted the part where the navigationController is allocated and initialized. Can you add that, including the relevant part from the .h file too?
Either create it with IB or programatically, see https://developer.apple.com/library/ios/#documentation/WindowsViews/Conceptual/ViewControllerPGforiOSLegacy/NavigationControllers/NavigationControllers.html#//apple_ref/doc/uid/TP40011381-CH103-SW27