Loading image to another View Controller - ios

Question

I have a drawing app with begins with choosing a category. Every category has his own drawing template. How do I get the secondViewController, to load the correct template? The category is chosen true a button from the firstViewController.
I have managed to give each segue a own identifier. And then what?
I only find examples of ways to parse data or images. But I don't want it to parse. I want it to load the image only on the secondViewController.
SecondViewController.h File
#property (strong, nonatomic) UIImage *theCatImage;
SecondViewController.m File
#interface secondViewController()
#property (weak, nonatomic) IBOutlet UIImageView *image;
#end
#implementation secondViewController
- (void)viewDidLoad
{
[super viewDidLoad];
self.image.image = self.theCatImage;
}
ViewController.h File
#import <UIKit/UIKit.h>
#import "cat01ViewController.h"
#interface ikzieikzieAppViewController : UIViewController
#property (weak, nonatomic) IBOutlet UIImageView *newImage;
#end
ViewController.m File
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{
if ([segue.identifier isEqualToString:#"vervoer"]) {
cat01ViewController *secondView = (cat01ViewController *)segue.destinationViewController;
// dont know what to send here... i tried to hide and show a image like this;
secondView.theCatImage = self.newImage;
}
}
EDIT
Above code doesn't work, ALSO i don't want to send a image from one to another viewcontroller.
This is what i want;
On the firstViewController, a user can choose from four different categories. Each categorie will show his own drawing template and also, gives his own ID when the drawing is send to a parse database at the end.
So, what is the best way to set this up?
***SOLUTION***
Eventually, this is the way i solved it.
ViewController
-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if ([segue.identifier isEqualToString:#"vervoer"]) {
UIImage *image = [UIImage imageNamed:#"vervoer.png"];
cat01ViewController *vc = [segue destinationViewController];
vc.showImage = image;
}
else if ([segue.identifier isEqualToString:#"huis"]) {
UIImage *image = [UIImage imageNamed:#"huis.png"];
cat01ViewController *vc = [segue destinationViewController];
vc.showImage = image;
}
else if ([segue.identifier isEqualToString:#"mode"]) {
UIImage *image = [UIImage imageNamed:#"vinkje.png"];
cat01ViewController *vc = [segue destinationViewController];
vc.showImage = image;
}
else if ([segue.identifier isEqualToString:#"eten"]) {
UIImage *image = [UIImage imageNamed:#"bord.png"];
cat01ViewController *vc = [segue destinationViewController];
vc.showImage = image;
}
}
SecondViewController
#synthesize catImage, showImage;
- (void)viewDidLoad
{
[catImage setImage:showImage];
[super viewDidLoad];
}

Answer 1

What you want to do is to add a property on SecondViewController:
#property (nonatomic) int category;
Then inside FirstViewController
Add property
#property (nonatomic) int chosenCategory;
Set this to the category that the user selected.
Then inside your seque code:
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{
cat01ViewController *secondView = (cat01ViewController *)segue.destinationViewController;
[secondView setCategory:self.chosenCategory];
}
This will tell the VC which image it will need to draw. Then you call your parse library method to retrieve the image based on the ID (Category) chosen inside the viewDidLoad method in SecondViewController:
SecondViewController
- (void)viewDidLoad
{
[super viewDidLoad];
self.image.image = [ParseLibrary getImageForCategory:self.chosenCategory];
}