Array in swipe cards Getting first element - ios

Question

I have created a array in my controller. Based on that JSON array my cards[tinderswipecards/cwRichard] are created . Now I want if I remove a card I want to get the data of card Shown to display somewhere in my viewController something like this
My cards coming from DraggableBackgroundView Class and i m implementing this in my own viewController
_peopleNearBypeopleList = [NSMutableArray new];
[dataArray enumerateObjectsUsingBlock:^(id _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop)
{
PeopleNearByIndividualModel * model = [PeopleNearByIndividualModel new];
NSDictionary *dicData = obj;
model.senderId = [[dicData objectForKey:USER_ID] integerValue];
model.displayName = [[dicData objectForKey:DISPLAY_NAME] uppercaseString];
model.userImage = [dicData objectForKey:#"image"];
[self.peopleNearBypeopleList addObject:model];
NSLog(#"%#",_peopleNearBypeopleList);
if (idx == [dataArray count] - 1) {
[self createInvitationViews];
}
and the strings to be created like
int i;
for (i = 0; i < [_peopleNearBypeopleList count]; i++) {
PeopleNearByIndividualModel * model = [_peopleNearBypeopleList objectAtIndex:i];
NSString *nameString = #"ARE YOU SURE YOU WANT TO INVITE ";
nameString = [nameString stringByAppendingString:model.displayName];
NSLog(#"%#", nameString);
_textView.textColor = [UIColor whiteColor];
_textView.font = [UIFont fontWithName:#"Roboto-Regular" size:17.0f];
_textView.text = nameString;
}
again and it is calling the first Object.how can i acheive this
this is my draggableViewBackground Class
//%%% loads all the cards and puts the first x in the "loaded cards" array
-(void)loadCards:(NSArray*)array
{
exampleCardLabels = array;
if([exampleCardLabels count] > 0) {
NSInteger numLoadedCardsCap =(([exampleCardLabels count] > MAX_BUFFER_SIZE)?MAX_BUFFER_SIZE:[exampleCardLabels count]);
//%%% if the buffer size is greater than the data size, there will be an array error, so this makes sure that doesn't happen
//%%% loops through the exampleCardsLabels array to create a card for each label. This should be customized by removing "exampleCardLabels" with your own array of data
for (int i = 0; i<[exampleCardLabels count]; i++) {
MG_DraggableVIew* newCard = [self createDraggableViewWithDataAtIndex:i];
[allCards addObject:newCard];
if (i<numLoadedCardsCap) {
//%%% adds a small number of cards to be loaded
[loadedCards addObject:newCard];
}
}
//%%% displays the small number of loaded cards dictated by MAX_BUFFER_SIZE so that not all the cards
// are showing at once and clogging a ton of data
for (int i = 0; i<[loadedCards count]; i++) {
if (i>0) {
[self insertSubview:[loadedCards objectAtIndex:i] belowSubview: [loadedCards objectAtIndex:i-1]];
} else {
[self addSubview:[loadedCards objectAtIndex:i]];
}
cardsLoadedIndex++; //%%% we loaded a card into loaded cards, so we have to increment
}
}
// }
}
#warning include own action here!
//%%% action called when the card goes to the left.
// This should be customized with your own action
-(void)cardSwipedLeft:(UIView *)card;
{
//do whatever you want with the card that was swiped
// DraggableView *c = (DraggableView *)card;
[loadedCards removeObjectAtIndex:0]; //%%% card was swiped, so it's no longer a "loaded card"
if (cardsLoadedIndex < [allCards count]) { //%%% if we haven't reached the end of all cards, put another into the loaded cards
[loadedCards addObject:[allCards objectAtIndex:cardsLoadedIndex]];
cardsLoadedIndex++;//%%% loaded a card, so have to increment count
[self insertSubview:[loadedCards objectAtIndex:(MAX_BUFFER_SIZE-1)] belowSubview:[loadedCards objectAtIndex:(MAX_BUFFER_SIZE-2)]];
}
}
#warning include own action here!
//%%% action called when the card goes to the right.
// This should be customized with your own action
-(void)cardSwipedRight:(UIView *)card
{
//do whatever you want with the card that was swiped
// DraggableView *c = (DraggableView *)card;
[loadedCards removeObjectAtIndex:0]; //%%% card was swiped, so it's no longer a "loaded card"
if (cardsLoadedIndex < [allCards count]) { //%%% if we haven't reached the end of all cards, put another into the loaded cards
[loadedCards addObject:[allCards objectAtIndex:cardsLoadedIndex]];
cardsLoadedIndex++;//%%% loaded a card, so have to increment count
[self insertSubview:[loadedCards objectAtIndex:(MAX_BUFFER_SIZE-1)] belowSubview:[loadedCards objectAtIndex:(MAX_BUFFER_SIZE-2)]];
}
}
//%%% when you hit the right button, this is called and substitutes the swipe
-(void)swipeRight
{
MG_DraggableVIew *dragView = [loadedCards firstObject];
dragView.overlayView.mode = GGOverlayViewModeRight;
[UIView animateWithDuration:0.2 animations:^{
dragView.overlayView.alpha = 1;
}];
[dragView rightClickAction];
}
//%%% when you hit the left button, this is called and substitutes the swipe
-(void)swipeLeft
{
MG_DraggableVIew *dragView = [loadedCards firstObject];
dragView.overlayView.mode = GGOverlayViewModeLeft;
[UIView animateWithDuration:0.2 animations:^{
dragView.overlayView.alpha = 1;
}];
[dragView leftClickAction];
}

Answer 1

you can post a NSNotification inside -(void)cardSwipedLeft:(UIView *)card & -(void)cardSwipedRight:(UIView *)card method in DraggableViewBackground.
NSDictionary *userInfo = [NSDictionary dictionaryWithObject:[NSNumber numberWithInt:index] forKey:#"someKey"];
[[NSNotificationCenter defaultCenter] postNotificationName:#"TestNotification" object:self userInfo:userInfo];
Here index is your card index. To set the index, you can declare a int property named index. Set initial value value of index like index=0; in initwithframe method.
then, increase the value of index when you swipe a card.
set index++; inside -(void)cardSwipedLeft:(UIView *)card & -(void)cardSwipedRight:(UIView *)card method in DraggableViewBackground.
Listen for this notification in your view controller. To achieve that add in the view controller's method in viewDidLoad by this line:
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(receiveTestNotification:)
name:#"TestNotification"
object:nil];
implement this selector method in your viewcontroller-
- (void) receiveTestNotification:(NSNotification *) notification
{
if ([[notification name] isEqualToString:#"TestNotification"]){
NSLog (#"Successfully received the test notification!");
NSDictionary *userInfo = notification.userInfo;
int myObject = [[userInfo objectForKey:#"someKey"]integerValue];
NSLog(#"index: %d", myObject);
}
}
on receiveTestNotification method you get card index. then you can get your data from your array by index.

Answer 2

In my opinion, it will be better for you if you maintain a dictionary for cards and their data.
You can create a dictionary with keys as card ids/card numbers and values as their data (description.)
So whenever you are removing card, simply fetch its data from dictionary.
Lets say cardsDictionary is your dictionary like this :
cardsDictionary = #{#"card1_id":#"card1_data"......#"cardn_id":#"cardn_data"};
Then on removing a card you can do like this:
card_data = cardsDictionary[#"card_id"];