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POSaving photo in different genre
 

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    <p>Hi I am making a gallery app that will save photo's into different genre's for example, fruits, meat and fish. However I have written the code that the user takes a square picture. However I do not know how to save it since I want it to be saved into different genre's(not in the photo library) and can be recalled by another view controller so that it can be displayed like a gallery. I also want the user to choose which genre he wants to save. What am I suppose to do if I want to achieve this kind of action? This is my code below </p> <pre><code>- (void) initializeCamera { AVCaptureSession *session = [[AVCaptureSession alloc] init]; session.sessionPreset = AVCaptureSessionPresetPhoto; AVCaptureVideoPreviewLayer *captureVideoPreviewLayer = [[AVCaptureVideoPreviewLayer alloc] initWithSession:session]; [captureVideoPreviewLayer setVideoGravity:AVLayerVideoGravityResizeAspectFill]; captureVideoPreviewLayer.frame = self.imagePreview.bounds; [self.imagePreview.layer addSublayer:captureVideoPreviewLayer]; UIView *view = [self imagePreview]; CALayer *viewLayer = [view layer]; [viewLayer setMasksToBounds:YES]; CGRect bounds = [view bounds]; [captureVideoPreviewLayer setFrame:bounds]; NSArray *devices = [AVCaptureDevice devices]; AVCaptureDevice *frontCamera; AVCaptureDevice *backCamera; for (AVCaptureDevice *device in devices) { NSLog(@"Device name: %@", [device localizedName]); if ([device hasMediaType:AVMediaTypeVideo]) { if ([device position] == AVCaptureDevicePositionBack) { NSLog(@"Device position : back"); backCamera = device; } else { NSLog(@"Device position : front"); frontCamera = device; } } } if (!FrontCamera) { NSError *error = nil; AVCaptureDeviceInput *input = [AVCaptureDeviceInput deviceInputWithDevice:backCamera error:&amp;error]; if (!input) { NSLog(@"ERROR: trying to open camera: %@", error); } [session addInput:input]; } if (FrontCamera) { NSError *error = nil; AVCaptureDeviceInput *input = [AVCaptureDeviceInput deviceInputWithDevice:frontCamera error:&amp;error]; if (!input) { NSLog(@"ERROR: trying to open camera: %@", error); } [session addInput:input]; } stillImageOutput = [[AVCaptureStillImageOutput alloc] init]; NSDictionary *outputSettings = [[NSDictionary alloc] initWithObjectsAndKeys: AVVideoCodecJPEG, AVVideoCodecKey, nil]; [stillImageOutput setOutputSettings:outputSettings]; [session addOutput:stillImageOutput]; [session startRunning]; } - (IBAction)snapImage:(id)sender { if (!haveImage) { captureImage.image = nil; //remove old image from view captureImage.hidden = NO; //show the captured image view imagePreview.hidden = YES; //hide the live video feed [self capImage]; } else { captureImage.hidden = YES; imagePreview.hidden = NO; haveImage = NO; } } - (void) capImage { //method to capture image from AVCaptureSession video feed AVCaptureConnection *videoConnection = nil; for (AVCaptureConnection *connection in stillImageOutput.connections) { for (AVCaptureInputPort *port in [connection inputPorts]) { if ([[port mediaType] isEqual:AVMediaTypeVideo] ) { videoConnection = connection; break; } } if (videoConnection) { break; } } NSLog(@"about to request a capture from: %@", stillImageOutput); [stillImageOutput captureStillImageAsynchronouslyFromConnection:videoConnection completionHandler: ^(CMSampleBufferRef imageSampleBuffer, NSError *error) { if (imageSampleBuffer != NULL) { NSData *imageData = [AVCaptureStillImageOutput jpegStillImageNSDataRepresentation:imageSampleBuffer]; [self processImage:[UIImage imageWithData:imageData]]; } }]; } - (void) processImage:(UIImage *)image { //process captured image, crop, resize and rotate haveImage = YES; if([UIDevice currentDevice].userInterfaceIdiom==UIUserInterfaceIdiomPad) { //Device is ipad // Resize image UIGraphicsBeginImageContext(CGSizeMake(768, 1022)); [image drawInRect: CGRectMake(0, 0, 768, 1022)]; UIImage *smallImage = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); CGRect cropRect = CGRectMake(0, 130, 768, 768); CGImageRef imageRef = CGImageCreateWithImageInRect([smallImage CGImage], cropRect); //or use the UIImage wherever you like [captureImage setImage:[UIImage imageWithCGImage:imageRef]]; CGImageRelease(imageRef); captureImage.hidden = NO; }else{ //Device is iphone // Resize image UIGraphicsBeginImageContext(CGSizeMake(320, 426)); [image drawInRect: CGRectMake(0, 0, 320, 426)]; UIImage *smallImage = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); CGRect cropRect = CGRectMake(0, 55, 320, 320); CGImageRef imageRef = CGImageCreateWithImageInRect([smallImage CGImage], cropRect); [captureImage setImage:[UIImage imageWithCGImage:imageRef]]; CGImageRelease(imageRef); } //adjust image orientation based on device orientation if ([[UIDevice currentDevice] orientation] == UIDeviceOrientationLandscapeLeft) { NSLog(@"landscape left image"); [UIView beginAnimations:@"rotate" context:nil]; [UIView setAnimationDuration:0.5]; captureImage.transform = CGAffineTransformMakeRotation(DegreesToRadians(-90)); [UIView commitAnimations]; } if ([[UIDevice currentDevice] orientation] == UIDeviceOrientationLandscapeRight) { NSLog(@"landscape right"); [UIView beginAnimations:@"rotate" context:nil]; [UIView setAnimationDuration:0.5]; captureImage.transform = CGAffineTransformMakeRotation(DegreesToRadians(90)); [UIView commitAnimations]; } if ([[UIDevice currentDevice] orientation] == UIDeviceOrientationPortraitUpsideDown) { NSLog(@"upside down"); [UIView beginAnimations:@"rotate" context:nil]; [UIView setAnimationDuration:0.5]; captureImage.transform = CGAffineTransformMakeRotation(DegreesToRadians(180)); [UIView commitAnimations]; } if ([[UIDevice currentDevice] orientation] == UIDeviceOrientationPortrait) { NSLog(@"upside upright"); [UIView beginAnimations:@"rotate" context:nil]; [UIView setAnimationDuration:0.5]; captureImage.transform = CGAffineTransformMakeRotation(DegreesToRadians(0)); [UIView commitAnimations]; } } </code></pre>
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