An Unity iOS plugin to pick images from the album.

DDDImagePickerPlugin.mm

//
//  DDDImagePickerPlugin.mm
//  Unity-iPhone
//
//  Created by dddnuts on 4/29/16.
//
//

#import <Foundation/Foundation.h>
#import <QBImagePicker/QBImagePicker.h>

@interface DDDImagePickerDelegate : NSObject<QBImagePickerControllerDelegate>

+(instancetype)sharedInstance;

@end

@implementation DDDImagePickerDelegate

+(instancetype)sharedInstance
{
    static DDDImagePickerDelegate *instance;
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        instance = [DDDImagePickerDelegate new];
    });
    return instance;
}

-(void)qb_imagePickerControllerDidCancel:(QBImagePickerController *)imagePickerController
{
    UIViewController *unityViewController = UnityGetGLViewController();
    [unityViewController dismissViewControllerAnimated:YES completion:nil];
    
    // TODO: Send message to Unity.
}

-(void)qb_imagePickerController:(QBImagePickerController *)imagePickerController didFinishPickingAssets:(NSArray *)assets
{
    UIViewController *unityViewController = UnityGetGLViewController();
    [unityViewController dismissViewControllerAnimated:YES completion:nil];
    
    // TODO: Send message with selected images to Unity.
}

@end

extern "C" {
    void DDDImagePicker_Open() {
        QBImagePickerController *picker = [QBImagePickerController new];
        picker.allowsMultipleSelection = YES;
        picker.maximumNumberOfSelection = 2;
        picker.showsNumberOfSelectedAssets = YES;
        
        picker.delegate = [DDDImagePickerDelegate sharedInstance];
        
        UIViewController *unityViewController = UnityGetGLViewController();
        
        [unityViewController presentViewController:picker animated:YES completion:nil];
    }
}