Display captured image from avcapture

0
votes

I want to store and retrieve an image that was taken from my avcapturesession. I was able to do this with a button press but I want to have the image appear automatically after it is taken. It works fine with an IBAction press. Here's what I have done. I stored the image to user defaults with this code 

UIImage *Capture = [UIImage imageWithData:self.jpegPhotoData];
capturetest = Capture;
NSData *imageData;
imageData = [NSKeyedArchiver archivedDataWithRootObject:Capture];
[[NSUserDefaults standardUserDefaults] setObject:imageData forKey:@"image"];

Then I called the NSUserDefaults with a button press using this code.

-(IBAction)test:(id)sender
{
    NSLog(@"WAS IT PRESSED");
    NSData *imageData1;
    imageData1 = [[NSUserDefaults standardUserDefaults] objectForKey:@"image"];
    capturetest = [NSKeyedUnarchiver unarchiveObjectWithData: imageData1];
    self.imgView.image = capture test;
}

This worked perfect. When I pressed the button it showed the image I just took but how do I just get the image to appear automatically? I've tried putting the button code inside a void statement like -(void)test then after the photo was taken I called [self test]. That didn't work. I even tried to call the button press automatically like this but no luck.

[self performSelector: @selector(test:) withObject:self afterDelay: 0.0];
2
iosobjective-cxcodeavcapturesessionavcapture
What type of object is self.imgView? How is imgView connected to NSUserDefaults? Have you tried stepping through -test: in the debugger in the case where it works and where it doesn't work and compared what's different? What value does self.imgView have at those times? From where are you calling -test: when you're not calling it from a button? - uliwitness

2 Answers

0
votes
UIImage *Capture = [UIImage imageWithData:self.jpegPhotoData];
globalObject = Capture;

You could do one thing that take one temporary global UIImage object and when you taken picture then you can save image to that object and use whenever you want.

0
votes

Write a delegate which return the image to required controller,like

YourImageController.h 

@protocol ImageSendingDelegate <NSObject>

 -(void)ServiceResponse :(UIImage *)currentImage;
@end

@interface YourImageController : .......

@property(strong,nonatomic)id <ImageSendingDelegate>IDelegate;

YourImageController.m Where you get image data

UIimage *image = [UIImage imageWithData:self.photoData];

[_IDelegate ServiceResponse:image];

import YourImageController.h in DesireController.h

@interface DesireController : UIViewController<ImageSendingDelegate>

@property (strong,nonatomic)YourImageController *delegateObject;

DesireCOntroller.m

 if(_delegateObject==nil)
 {
 _delegateObject=[[YourImageController alloc]init];

  _delegateObject.IDelegate=self

 }

-(void)ServiceResponse:(UIImage *)currentImage
{

UIimage *IamgeRecived=currentImage;

NSLog(@"\n\n\n\n geting image");

}