I'm trying to add a gesture to a subview of a UICollectionViewCell make with xib, I'm doing this:
.h
#interface MyCell : UICollectionViewCell <UIGestureRecognizerDelegate>
#property (weak, nonatomic) IBOutlet UIView *containerButton;
#end
.m
#implementation MyCell
- (id)initWithCoder:(NSCoder *)aDecoder
{
self = [super initWithCoder:aDecoder];
if (self) {
[self initialize];
}
return self;
}
- (void)initialize
{
UIPanGestureRecognizer *panGestureRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:#selector(handlePanGesture:)];
[panGestureRecognizer setDelegate:self];
if (self.containerButton) {
NSLog(#"ok"); //not enter here
[self.containerButton addGestureRecognizer:panGestureRecognizer];
}
}
-(void)prepareForReuse {
[super prepareForReuse];
if (self.containerButton) {
NSLog(#"ok 2");
}
}
I have created the UICollectionViewCell subclass connected with the xib file, where I have created the container button view, if I try to add the gesture in the initialize method, the containerButton is nil, so doesn't work, but in the prepareForReuse method is not empty, I can add the gesture there? or I can do it in other place?
Try this:
- (void)awakeFromNib
{
UIPanGestureRecognizer *panGestureRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:#selector(handlePanGesture:)];
[panGestureRecognizer setDelegate:self];
if (self.containerButton) {
NSLog(#"ok"); //not enter here
[self.containerButton addGestureRecognizer:panGestureRecognizer];
}
}
Related
I'm creating UICollectionView like below.
What I want to do about the UICollectionView is,
Each UICollectionViewCell has UIButton ([cell.contentView addSubview:button];)
UIButton need to handle UIControlEventTouchDown and UIControlEventTouchUpInside
Begin interactiveMovement by Long tap of UICollectionView Cell
Don't want to begin interactiveMovement by Long tap of UIButton. UIButton just handle UIControlEvent assigned at Step 2.
Want to handle (didSelectItemAtIndexPath:) when the area of UICollectionViewCell other than UIButton is tapped.
My problem is that handleLongPress for UICollectionView responds and start interactiveMovement even when long tapping UIButton .
I want to start interactiveMovement only when the area of UICollectionView other than UIButton is tapped.
When UIButton is long tapped, I just want to handle UIConrolEvent assigned to UIButton and don't want UICollectionView to respond.
I'd appreciate if you would have some solution.
My code is like below, thank you.
MyCollectionView : UICollectionView
- (id)init
{
self = [super initWithFrame:CGRectZero collectionViewLayout:[[UICollectionViewFlowLayout alloc] init]];
if (self) {
self.delegate = self;
self.dataSource = self;
--- snip ---
[self addLongPressGesture];
--- snip ---
}
return self;
}
- (void)addLongPressGesture
{
UILongPressGestureRecognizer *gesture = [[UILongPressGestureRecognizer alloc] initWithTarget:self
action:#selector(handleLongPress:)];
[self addGestureRecognizer:gesture];
}
- (void)handleLongPress:(UILongPressGestureRecognizer *)sender
{
CGPoint point = [sender locationInView:sender.view];
NSIndexPath *indexPath = [self indexPathForItemAtPoint:point];
switch (sender.state) {
case UIGestureRecognizerStateBegan:
[self beginInteractiveMovementForItemAtIndexPath:indexPath];
break;
case UIGestureRecognizerStateChanged:
[self updateInteractiveMovementTargetPosition:point];
break;
case UIGestureRecognizerStateEnded:
[self endInteractiveMovement];
break;
default:
[self cancelInteractiveMovement];
break;
}
}
- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath
{
// something to do
}
MyUICollectionViewCell : UICollectionViewCell
- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
[self initButton];
}
return self;
}
- (void)initButton
{
_button = [[UIButton alloc] init];
[_button addTarget:self action:#selector(touchUpButton:) forControlEvents:UIControlEventTouchUpInside];
[_button addTarget:self action:#selector(touchDownButton:) forControlEvents:UIControlEventTouchDown];
--- snip ---
[self addSubview:_button];
}
- (void)touchUpButton:(UIButton *)button
{
// something to do
}
- (void)touchDownButton:(UIButton *)button
{
// something to do
}
Add a transparent UIView below UIButton and add long press to it not to the whole collection view as UIButton is considered a sub-Control of the cell
OR
see the long press point x,y if it's intersects with button's frame return from the method
I've resolved my problem. It my not be a good solution but it's working as I expect.
I've added ButtonBaseView(:UIView) under UIButton and add LongPressGesture on the ButtonBaseView.
The LongPressGesture do nothing as it's action. The role is to block LongPressGesture not to pass the event to UICollectionView.
At the same time, set cancelsTouchesInView=NO to handle TouchUpInside or TouchDragExit
My code is like below,
- (void)addDummyLongTapGesture
{
UILongPressGestureRecognizer *gesture = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:nil];
gesture.cancelsTouchesInView = NO;
[buttonBaseView addGestureRecognizer:gesture];
}
I'm setting my page title as:
self.title = #"My Title";
Now I want to enable this title as that user can copy this title.
So How do I do that ?
EDIT:
self is my UIViewController class and my view is in navigation controller.
When user hold the title it can show tooltip like "Copy" and title text copied.
You can subclass UILabel named 'YourTitleLabel' and assign it as titleView of UIViewController's navigationItem.
self.navigationItem.titleView = YourTitleLabel;
And you should override several methods of UIResponder.
#interface YourTitleLabel : UILabel
#end
#implementation YourTitleLabel
- (BOOL)canBecomeFirstResponder
{
return YES;
}
- (BOOL)canPerformAction:(SEL)action withSender:(id)sender
{
if (action == #selector(copy:)) {
return YES;
}
return NO;
}
- (void)copy:(id)sender
{
[[UIPasteboard generalPasteboard] setString:self.text];
[self resignFirstResponder];
}
#end
Hope helpful for you!
Here is the way :
Make UILable subclass, and add this methods to the class.
TitleLabel.h file:
#import <UIKit/UIKit.h>
#interface TitleLabel : UILabel
#end
and TitleLabel.m file:
#import "TitleLabel.h"
#implementation TitleLabel
- (void)initCommon
{
UILongPressGestureRecognizer *lpRecognizer = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:#selector(handleLongPress:)];
[self addGestureRecognizer:lpRecognizer];
}
- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self)
{
[self initCommon];
}
return self;
}
- (id)initWithCoder:(NSCoder *)aDecoder
{
self = [super initWithCoder:aDecoder];
if (self)
{
[self initCommon];
}
return self;
}
- (BOOL)canBecomeFirstResponder
{
return YES;
}
- (void)copy:(id)sender
{
[[UIPasteboard generalPasteboard] setString:self.text];
[self resignFirstResponder];
}
- (void)handleLongPress:(UILongPressGestureRecognizer *)sender
{
UIMenuController *menu = [UIMenuController sharedMenuController];
if (![menu isMenuVisible])
{
[self becomeFirstResponder];
[menu setTargetRect:self.frame inView:self.superview];
[menu setMenuVisible:YES animated:YES];
}
}
#end
Now add this lable to your navigation titleView like :
TitleLabel *title = [[TitleLabel alloc] initWithFrame:CGRectMake(0, 0, 150, 50)];
title.textAlignment = NSTextAlignmentCenter;
title.text = #"My title";
title.userInteractionEnabled = YES;
self.navigationItem.titleView = title;
and here is you can copy self.title on long press on lable.
you can set your custom label in self.navigationbar.titleview and set title in your custom label. If that will also not work. then you can try with uitextfield (actually it is weird to set textfield in titleview) with non-editable.
you need to create one sampleLabel class, which is the sub class of UILabel as follows , where you required copy text option use this SampleLabel intead of UILabel
#implementation SampleLabel UILabel
- (void) awakeFromNib
{
[super awakeFromNib];
[self attachTapHandler];
}
- (void) attachTapHandler
{
if (self.tag != 100 ) {
[self setUserInteractionEnabled:YES];
UITapGestureRecognizer *touchy = [[UITapGestureRecognizer alloc]
initWithTarget:self action:#selector(handleTap:)];
touchy.numberOfTapsRequired = 2;
[self addGestureRecognizer:touchy];
}
}
- (void) copy: (id) sender
{
[[UIPasteboard generalPasteboard] setString:self.text];
}
- (BOOL) canPerformAction: (SEL) action withSender: (id) sender
{
return (action == #selector(copy:));
}
- (void) handleTap: (UIGestureRecognizer*) recognizer
{
[self becomeFirstResponder];
UIMenuController *menu = [UIMenuController sharedMenuController];
[menu setTargetRect:self.frame inView:self.superview];
[menu setMenuVisible:YES animated:YES];
}
- (BOOL) canBecomeFirstResponder
{
return YES;
}
#end
UIPasteboard *pasteboard = [UIPasteboard generalPasteboard];
pasteboard.string = self.title;
Refer to this link: https://developer.apple.com/library/ios/documentation/StringsTextFonts/Conceptual/TextAndWebiPhoneOS/UsingCopy,Cut,andPasteOperations/UsingCopy,Cut,andPasteOperations.html
I have a table and custom cell from NIB. Basically what I need is to slide the custom cell from the table to the right side. It has to be smooth, and the table itself should not collapse. (The cell will get back after the action is done). I have some number of sections, and 1 row/section, so basically I need to move with the section. Thanks a lot for the answer!
My cell.m file looks like this:
#import "MIKETableViewCell.h"
static NSString *CellTableIdentifier = #"MIKETableViewCell";
#implementation MIKETableViewCell
#synthesize timeLabel = _timeLabel;
#synthesize priceLabel = _priceLabel;
#synthesize infoLabel = _infoLabel;
- (void)awakeFromNib
{
// Initialization code
}
-(id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString*)reuseIdentifier {
self = [super initWithStyle:style reuseIdentifier:CellTableIdentifier];
return self;
}
- (void)setSelected:(BOOL)selected animated:(BOOL)animated
{
[super setSelected:selected animated:animated];
// Configure the view for the selected state
}
#end
add this:
-(void)layoutSubviews
{
UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(tableCellClicked)];
tapGesture.numberOfTapsRequired = 1;
[self addGestureRecognizer:tapGesture];
}
I have a custom complex UITableViewCell where there are many views. I have an UIImageView within it which is visible for a specific condition. When it's visible ,
I have to perform some Action when user Taps that UIImageView.
I know I have to trigger a selector for this task. But I also want to pass a value to that Method (please See -(void)onTapContactAdd :(id) sender : (NSString*) uid below) that will be called as a Action of Tap on my UIImageView in UITableViewCell I am talking about. It's because , using that passed value , the called method will do it's job.
Here is what I have tried so far.
cell.AddContactImage.hidden = NO ;
cell.imageView.userInteractionEnabled = YES;
UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(onTapContactAdd::)];
[tap setNumberOfTouchesRequired:1];
[tap setNumberOfTapsRequired:1];
[tap setDelegate:self];
[cell.AddContactImage addGestureRecognizer:tap];
-(void)onTapContactAdd :(id) sender : (NSString*) uid
{
NSLog(#"Tapped");
// Do something with uid from parameter
}
This method is not called when I tap. I have added in my header file.
Thanks for your help in advance.
Maybe not the ideal solution, but add tags to each of the UIImageViews. Then have an NSArray with the uid's corresponding to the tag values
So somewhere in your code make the array
NSArray *testArray = [NSArray arrayWithObjects:#"uid1", #"uid2", #"uid3", #"uid4", #"uid5", #"uid6", nil];
Then when you're setting up the tableview cells set the tag to the row #
//Set the tag of the imageview to be equal to the row number
cell.imageView.tag = indexPath.row;
//Sets up taprecognizer for each imageview
UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self
action:#selector(handleTap:)];
[cell.imageView addGestureRecognizer:tap];
//Enable the image to be clicked
cell.imageView.userInteractionEnabled = YES;
Then in the method that gets called you can get the tag like this
- (void)handleTap:(UITapGestureRecognizer *)recognizer
{
NSString *uid = testArray[recognizer.view.tag];
}
Add the gesture recognizer to the cell itself.
Then in the action selector, do as following to know which view has been tapped:
-(IBAction)cellTapped:(UITapGestureRecognizer*)tap
{
MyCustomTableViewCell* cell = tap.view;
CGPoint point = [tap locationInView:cell.contentView];
UIView* tappedView = [cell.contentView hitTest:point withEvent:NULL];
if (tappedView==cell.myImageView) {
// Do whatever you want here,
}
else { } // maybe you have to handle some other views here
}
A gesture recognizer will only pass one argument into an action selector: itself. So u need to pass the uid value alone.Like this.
Guessing this lies within the cellForRowAtIndexPath: method
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
//code
cell.AddContactImage.hidden = NO ;
cell.imageView.userInteractionEnabled = YES;
cell_Index=indexPath.row ;
UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(onTapContactAdd:)]; //just one arguement passed
[tap setNumberOfTouchesRequired:1];
[tap setNumberOfTapsRequired:1];
[tap setDelegate:self];
[cell.AddContactImage addGestureRecognizer:tap];
//rest of code
}
-(void)onTapContactAdd :(NSString*) uid
{
NSLog(#"Tapped");
CustomCell *cell=(CustomCell *)[yourtableView cellForRowAtIndexPath:[NSIndexPath indexPathForRow:cell_Index inSection:0]];
//cell.AddContactImage will give you the respective image .
// Do something with uid from parameter .
}
So here when you tap on the visible image in the respective custom cell,the onTapContactAdd: method gets called with the corresponding uid value(parameter) and now we have the cell.AddContactImage also accessible which i believe is why you were trying to pass it also along with the parameters .
Hope it Helps!!!
you can use ALActionBlocks to add gesture to UIImageView and handle action in block
__weak ALViewController *wSelf = self;
imageView.userInteractionEnabled = YES;
UITapGestureRecognizer *gr = [[UITapGestureRecognizer alloc] initWithBlock:^(UITapGestureRecognizer *weakGR) {
NSLog(#"pan %#", NSStringFromCGPoint([weakGR locationInView:wSelf.view]));
}];
[self.imageView addGestureRecognizer:gr];
Install
pod 'ALActionBlocks'
Another one, with the indexPath, if it's ok for you to handle the tap in DataSource:
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: cellReuseId)! as! ...ListCell
...
cell.theImage.isUserInteractionEnabled = true
let onTap = UITapGestureRecognizer(target: self, action: #selector(onTapImage))
onTap.numberOfTouchesRequired = 1
onTap.numberOfTapsRequired = 1
cell.theImage.addGestureRecognizer(onTap)
...
return cell
}
func onTapImage(_ sender: UITapGestureRecognizer) {
var cell: ...ListCell?
var tableView: UITableView?
var view = sender.view
while view != nil {
if view is ...ListCell {
cell = view as? ...ListCell
}
if view is UITableView {
tableView = view as? UITableView
}
view = view?.superview
}
if let indexPath = (cell != nil) ? tableView?.indexPath(for: cell!) : nil {
// this is it
}
}
You may want to make the code shorter if you have only one tableView.
Here, We have customtableviewcell both .h and .m files with two images in cell. And HomeController, which have tableview to access this cell. This is detect the Tap on both the UIImage as described.
**CustomTableViewCell.h**
#protocol CustomTableViewCellDelegate <NSObject>
- (void)didTapFirstImageAtIndex:(NSInteger)index;
-(void)didTapSettingsImagAtIndex:(NSInteger)index;
#end
#interface CustomTableViewCell : UITableViewCell
{
UITapGestureRecognizer *tapGesture;
UITapGestureRecognizer *tapSettingsGesture;
}
#property (weak, nonatomic) IBOutlet UIImageView *firstImage;
#property (weak, nonatomic) IBOutlet UIImageView *lightSettings;
#property (nonatomic, assign) NSInteger cellIndex;
#property (nonatomic, strong) id<CustomTableViewCellDelegate>delegate;
**CustomTableViewCell.m**
#import "CustomTableViewCell.h"
#implementation CustomTableViewCell
- (void)awakeFromNib {
[super awakeFromNib];
// Initialization code
[self addGestures];
}
- (void)addGestures {
tapGesture = [[UITapGestureRecognizer alloc]
initWithTarget:self action:#selector(didTapFirstImage:)];
tapGesture.numberOfTapsRequired = 1;
[_firstImage addGestureRecognizer:tapGesture];
tapSettingsGesture = [[UITapGestureRecognizer alloc]
initWithTarget:self action:#selector(didTapSettingsImage:)];
tapSettingsGesture.numberOfTapsRequired = 1;
[_lightSettings
addGestureRecognizer:tapSettingsGesture];
}
- (void)didTapFirstImage:(UITapGestureRecognizer *)gesture
{
if (_delegate) {
[_delegate didTapFirstImageAtIndex:_cellIndex];
}
}
-(void)didTapSettingsImage: (UITapGestureRecognizer
*)gesture {
if(_delegate) {
[_delegate didTapSettingsAtIndex:_cellIndex];
}
}
**HomeController.h**
#import <UIKit/UIKit.h>
#import "CustomTableViewCell.h"
#interface HomeController : CustomNavigationBarViewController
<UITableViewDelegate, UITableViewDataSource,
UIGestureRecognizerDelegate, CustomTableViewCellDelegate>
#end
**HomeController.m**
---------------------
#import "HomeController.h"
#import "CustomTableViewCell.h"
#implementation HomeController
-(NSInteger)tableView:(UITableView *)tableView
numberOfRowsInSection:(NSInteger)section {
return 2 (Number of rows) ;
// return number of rows
}
-(UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
CustomTableViewCell *cell = [tableView
dequeueReusableCellWithIdentifier:#"cell"
forIndexPath:indexPath];
cell.delegate = self;
cell.cellIndex = indexPath.row;
cell.firstImage.userInteractionEnabled = YES;
cell.lightSettings.userInteractionEnabled = YES;
return cell;
}
-(void)didTapFirstImageAtIndex:(NSInteger)index
{
NSLog(#"Index %ld ", (long)index);
//Do whatever you want here
}
-(void)didTapSettingsAtIndex:(NSInteger)index
{
NSLog(#"Settings index %ld", (long)index);
// Do whatever you want here with image interaction
}
#end
Currently I have custom UITablViewCell's (BIDSelectBusinessCustomCell) that are displayed in a tableView (myTableView). The custom cell is made up of a UIImageView and a label. When the view loads the labels are populated with the strings from my model. UIImageViews are blank. I want to be able for a user to 'tap' the UIImageView, select a picture from what is stored on their phone and for that image to be saved to the UIImageView.
From the below code I can get the 'tap' gesture, then the pickercontroller pops up and a user selects an image. The way the code is now one image that is selected is set for all of the UIImageViews. Which is understandable. But I want it to be set to that particular UIImageView and don't know how to.
Code:
#import <UIKit/UIKit.h>
#interface BIDBusinessSelectViewController : UIViewController <UITableViewDataSource, UITableViewDelegate, UIGestureRecognizerDelegate, UIImagePickerControllerDelegate, UINavigationControllerDelegate>
#property (weak, nonatomic) IBOutlet UITableView *myTableView;
#property (strong, nonatomic) NSArray *linkedBusinessParseArray;
//Stores the array of models
#property (strong, nonatomic) NSMutableArray *linkedBusinessParseModelArray;
#property NSUInteger relevantIndex;
#property (strong, nonatomic) UIImage *tempImageHolder;
#end
#import "BIDBusinessSelectViewController.h"
#import <Parse/Parse.h>
#import "BIDBusinessModel.h"
#import "BIDSelectBusinessCustomCell.h"
#interface BIDBusinessSelectViewController () <ImageSelect>
{
BIDSelectBusinessCustomCell *aCell;//define a cell of ur custom cell to hold selected cell
UIImage *choosenImage; //image to set the selected image
}
#end
#implementation BIDBusinessSelectViewController
- (void)viewDidLoad
{
[super viewDidLoad];
self.myTableView.delegate = self;
self.myTableView.dataSource = self;
self.linkedBusinessParseModelArray = [[NSMutableArray alloc]init];
//create query
PFQuery *linkedBusinessParseQuery = [PFQuery queryWithClassName:#"linkedBusinessParseClass"];
//follow relationship
[linkedBusinessParseQuery whereKey:#"currentBusinessUserParse" equalTo:[PFUser currentUser]];
[linkedBusinessParseQuery whereKey:#"linkRequestSentParse" equalTo:#"Approved"];
[linkedBusinessParseQuery findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
self.linkedBusinessParseArray = objects; //store them in my model array
//loop through model array from Parse
for (NSDictionary *dict in self.linkedBusinessParseArray) {
NSString *descPlaceNameParse = [dict objectForKey:#"placeDescriptionParse"];
NSLog(#"descPlacesNameParse: %#",descPlaceNameParse);
PFObject *tempObj = (PFObject *) dict;
NSString *tempObjString = tempObj.objectId;
NSLog(#"tempObjString (inside dict): %#", tempObjString);
//storing values from Parse into my model
BIDBusinessModel *userModel = [[BIDBusinessModel alloc]init];
userModel.descriptionModelParse = descPlaceNameParse;
userModel.objectIdModelParse = tempObjString;
[self.linkedBusinessParseModelArray addObject:userModel];
NSLog(#"self.linkedBusinessParseModelArray: %lu", (unsigned long)[self.linkedBusinessParseModelArray count]);
//Reload tableview. Has to go here in block otherwise it does not occur
[self.myTableView reloadData];
}
}];
if (![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
UIAlertView *myAlertView = [[UIAlertView alloc] initWithTitle:#"Error"
message:#"Device has no camera"
delegate:nil
cancelButtonTitle:#"OK"
otherButtonTitles: nil];
[myAlertView show];
}
choosenImage = [UIImage imageNamed:#"pin.png"]; //hear u need to set the image for cell assuming that u are setting initially same image for all the cell
}
#pragma mark -
#pragma mark Table Delegate Methods
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return self.linkedBusinessParseModelArray.count; //returns count of model NSMutableArray
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSLog(#"Start cellforRowStIndex");
static NSString *CellIdentifier = #"Cell";
BIDSelectBusinessCustomCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (!cell) {
cell = [[BIDSelectBusinessCustomCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
BIDBusinessModel *bizModel;
bizModel = self.linkedBusinessParseModelArray[indexPath.row];
bizModel.image = choosenImage;
//cell.descLabel.text = [NSString stringWithFormat:#"bid= %d",indexPath.row];//set text from the model//Omitted for my desc
cell.descLabel.text = bizModel.descriptionModelParse;
cell.logoImage.image =bizModel.image; //setting the image initially the image when u set in "viewDidLoad" method from second time onwords it will set from the picker delegate method
//insted of settig the gesture hear set it on the custom cell
cell.ImageSelectDelegate = self; //setting the delegate
cell.selectionStyle = UITableViewCellSelectionStyleNone;
return cell;
}
// hear implementation of delegate method
- (void)selectSetImageForSelectedLogImage:(UIImageView *)logoImgView;
{
//open up the image picker
UIImagePickerController *picker = [[UIImagePickerController alloc]init];
picker.delegate = self;
picker.allowsEditing = YES;
picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
aCell = (BIDSelectBusinessCustomCell *)logoImgView.superview; //her getting the cell
[self presentViewController:picker animated:YES completion:NULL];
}
-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
UIImage *aChosenImage = info[UIImagePickerControllerEditedImage];
//UIImage holder to transfer to cellForRowAtIndexPath
choosenImage = aChosenImage;
NSIndexPath *indexPath = [self.myTableView indexPathForCell:aCell];
[self.myTableView reloadRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade]; //hear reloading the selected cell only not entire tableview
//get the model and set the choosen image
BIDBusinessModel *bizModel;
bizModel = self.linkedBusinessParseModelArray[indexPath.row];
bizModel.image = aChosenImage;
[picker dismissViewControllerAnimated:YES completion:NULL];
}
-(void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
[picker dismissViewControllerAnimated:YES completion:NULL];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#end
#import <UIKit/UIKit.h>
#protocol ImageSelect<NSObject> //for this u need use custom delegate so i did like this
- (void)selectSetImageForSelectedLogImage:(UIImageView *)logoImgView;
#end
#interface BIDSelectBusinessCustomCell : UITableViewCell
#property (strong, nonatomic) IBOutlet UILabel *descLabel;
#property (strong, nonatomic) IBOutlet UIImageView *logoImage;
#property (nonatomic, assign) id<ImageSelect>ImageSelectDelegate; // deleagte
#end
#import "BIDSelectBusinessCustomCell.h"
#implementation BIDSelectBusinessCustomCell
- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
if (self) {
self.logoImage = [[UIImageView alloc]init];
self.descLabel = [[UILabel alloc]init];
//set up gesture hear in the custom cell insted in the controller class
UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(tapLogoImage:)];
[tap setNumberOfTouchesRequired:1];
[tap setNumberOfTapsRequired:1];
[tap setDelegate:self];
self.logoImage.userInteractionEnabled = YES;
[self.logoImage addGestureRecognizer:tap];
//[self addSubview:logoImage];
//[self addSubview:descLabel];
}
return self;}
- (void)setSelected:(BOOL)selected animated:(BOOL)animated
{
[super setSelected:selected animated:animated];
// Configure the view for the selected state
}
- (void)tapLogoImage:(UITapGestureRecognizer *)guesture
{
if([self.ImageSelectDelegate respondsToSelector:#selector(selectSetImageForSelectedLogImage:)])
{
[self.ImageSelectDelegate selectSetImageForSelectedLogImage:self.logoImage];//call the delegate method from the selected cell
}
}
#end
Yup for this, i tried but finally i did something like this, go through this u may find some solution. and hope this helps u :)
//in custom cell "BIDSelectBusinessCustomCell.h"
#import <UIKit/UIKit.h>
//define a delegate method that is called each time when u tapped on cell
#protocol ImageSelect<NSObject> //for this u need use custom delegate so i did like this
- (void)selectSetImageForSelectedLogImage:(UIImageView *)logoImgView;
#end
#interface BIDSelectBusinessCustomCell : UITableViewCell <UIImagePickerControllerDelegate,UINavigationControllerDelegate>
{
UIImageView *logoImage; //your image holder
UILabel *descLabel; //label
}
#property (nonatomic, retain) UIImageView *logoImage;
#property (nonatomic, retain) UILabel *descLabel;
#property (nonatomic, assign) id<ImageSelect>ImageSelectDelegate; // deleagte
#end
//in custom cell "BIDSelectBusinessCustomCell.m"
#import "BIDSelectBusinessCustomCell.h"
#implementation BIDSelectBusinessCustomCell
#synthesize logoImage;
#synthesize descLabel;
#synthesize ImageSelectDelegate;
- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
if (self) {
// Initialization code
logoImage = [[UIImageView alloc]init];
descLabel = [[UILabel alloc]init];
//set up gesture hear in the custom cell insted in the controller class
UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(tapLogoImage:)];
[tap setNumberOfTouchesRequired:1];
[tap setNumberOfTapsRequired:1];
[tap setDelegate:self];
logoImage.userInteractionEnabled = YES;
[logoImage addGestureRecognizer:tap];
[self addSubview:logoImage];
[self addSubview:descLabel];
}
return self;
}
- (void)dealloc
{
[logoImage release];
[descLabel release];
[super dealloc];
}
- (void)setSelected:(BOOL)selected animated:(BOOL)animated
{
[super setSelected:selected animated:animated];
// Configure the view for the selected state
}
- (void)layoutSubviews
{
//in this method simply i am setting the frames of subviews
[super layoutSubviews];
self.logoImage.frame = CGRectMake(130, 2, 44,44 );
self.descLabel.frame = CGRectMake(20, 2, 60, 44);
}
- (void)tapLogoImage:(UITapGestureRecognizer *)guesture
{
if([self.ImageSelectDelegate respondsToSelector:#selector(selectSetImageForSelectedLogImage:)])
{
[self.ImageSelectDelegate selectSetImageForSelectedLogImage:self.logoImage];//call the delegate method from the selected cell
}
}
#end
//in your view controller class u need to do something like this ;)
//ViewController.h file
#import <UIKit/UIKit.h>
#interface ViewController : UIViewController
#property (retain, nonatomic) IBOutlet UITableView *aTableView;
#property (nonatomic, retain) NSIndexPath *selectedIndexPath; //no need just try
#end
//in your "ViewController.m" file
#interface ViewController ()<UITableViewDataSource, UITableViewDelegate,UITextFieldDelegate,UIImagePickerControllerDelegate,UINavigationControll erDelegate,ImageSelect>//delegate
{
BIDSelectBusinessCustomCell *aCell;//define a cell of ur custom cell to hold selected cell
UIImage *choosenImage; //image to set the selected image
}
- (void)viewDidLoad
{
[super viewDidLoad];
choosenImage = [UIImage imageNamed:#"Star.png"]; //hear u need to set the image for cell assuming that u are setting initially same image for all the cell
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (void)dealloc {
[aTableView release];
[super dealloc];
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return 4; //pass array check array contains valid objects
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
BIDSelectBusinessCustomCell *cell = [tableView dequeueReusableCellWithIdentifier:#"cell"];
if(cell == nil)
{
cell = [[BIDSelectBusinessCustomCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:#"cell"];
}
BIDBusinessModel *bizModel;
bizModel = self.linkedBusinessParseModelArray[indexPath.row];
bizModel.image = aChosenImage;
cell.descLabel.text = [NSString stringWithFormat:#"bid= %d",indexPath.row];//set text from the model
cell.logoImage.image =bizModel.image; //setting the image initially the image when u set in "viewDidLoad" method from second time onwords it will set from the picker delegate method
//insted of settig the gesture hear set it on the custom cell
cell.ImageSelectDelegate = self; //setting the delegate
cell.selectionStyle = UITableViewCellSelectionStyleNone;
return cell;
}
// hear implementation of delegate method
- (void)selectSetImageForSelectedLogImage:(UIImageView *)logoImgView;
{
//open up the image picker
UIImagePickerController *picker = [[UIImagePickerController alloc]init];
picker.delegate = self;
picker.allowsEditing = YES;
picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
aCell = (BIDSelectBusinessCustomCell *)logoImgView.superview; //her getting the cell
[self presentViewController:picker animated:YES completion:NULL];
}
-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
UIImage *aChosenImage = info[UIImagePickerControllerEditedImage];
//UIImage holder to transfer to cellForRowAtIndexPath
choosenImage = aChosenImage;
NSIndexPath *indexPath = [aTableView indexPathForCell:aCell];
[self.aTableView reloadRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade]; //hear reloading the selected cell only not entire tableview
//get the model and set the choosen image
BIDBusinessModel *bizModel;
bizModel = self.linkedBusinessParseModelArray[indexPath.row];
bizModel.image = aChosenImage;
[picker dismissViewControllerAnimated:YES completion:NULL];
}
Yes it is true this would set the image to every row..
Now what you can do is : -
While loading of tableViewCells just assign the tag of UIImageView as the (indexPath.Row).
This would assign unique tags to the ImageView.
You can easily get the tag of that imageView while tapping and now you can assign the image to particular imageView through tagValue of that imageView.
This would assign image to a particular imageView as all have unique tags.
Hope you got the answer of your problem.