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POPlacing UIImage at tapped image in UITableViewCell
 

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  1. POPlacing UIImage at tapped image in UITableViewCell
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    <p>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.</p> <p>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.</p> <p>Code: </p> <pre><code>#import &lt;UIKit/UIKit.h&gt; @interface BIDBusinessSelectViewController : UIViewController &lt;UITableViewDataSource, UITableViewDelegate, UIGestureRecognizerDelegate, UIImagePickerControllerDelegate, UINavigationControllerDelegate&gt; @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 &lt;Parse/Parse.h&gt; #import "BIDBusinessModel.h" #import "BIDSelectBusinessCustomCell.h" @interface BIDBusinessSelectViewController () &lt;ImageSelect&gt; { 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 &lt;UIKit/UIKit.h&gt; @protocol ImageSelect&lt;NSObject&gt; //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&lt;ImageSelect&gt;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 </code></pre>
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    1. USAnthony
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      1. VTUpMod
    1. COBasically I am thinking that I need to somehow 'link' UIImageView to the UITableViewCell. I just don't know how I could go about this linking. Somehow there needs to be a way for it to know that UIImage for the 1st table cell was tapped, or the second table cell etc. Any suggestions?
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      1. USAnthony
    2. COI'm not really sure what you're trying to do here, but the usual way to get which row a tapped UI element is in, is to give it a tag that's equal to the indexPath.row.
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      1. USrdelmar
    3. COHi rdelmar, I have changed my question to be more concise. Due to where I am adding the image 'tapLogoImage', I do not think that is possible...?
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      1. USAnthony
 

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