Question

I am developing an app in that a user can write a label(text) over the image and have to save it in iphone local storage with the label.

(i.e) User can add whatever text in the place provided over the image, and have to save it as image with the label he wrote in the iphone local storage

Thanks in advance

Answer 1

I think you need to add the your UIImageView and your UILabel as a subview of a particular UIView (Suppose we call this view as customView) and then take the screenshot of the view using

how to take a screenshot of the iPhone programmatically?

Answer from the link modified to make it more easy for your understanding which is as follows:

Important: Add QuartzCore Framework and add #import<QuartzCore/QuartzCore.h>

CGSize screenSize = [[UIScreen mainScreen] applicationFrame].size;
CGColorSpaceRef colorSpaceRef = CGColorSpaceCreateDeviceRGB(); 
CGContextRef ctx = CGBitmapContextCreate(nil, screenSize.width, screenSize.height, 8, 4*(int)screenSize.width, colorSpaceRef,
kCGImageAlphaPremultipliedLast);
CGContextTranslateCTM(ctx, 0.0, screenSize.height);
CGContextScaleCTM(ctx, 1.0, -1.0);

[(CALayer*)customView.layer renderInContext:ctx];

CGImageRef cgImage = CGBitmapContextCreateImage(ctx);
UIImage *image = [UIImage imageWithCGImage:cgImage];
CGImageRelease(cgImage);
CGContextRelease(ctx);  
[UIImageJPEGRepresentation(image, 1.0) writeToFile:filePath atomically:NO];

Here filePath is your application’s Documents directory file path.

You can get your NSDocuments Directory file path using:

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
 NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *filePath = [documentsDirectory stringByAppendingPathComponent:@"savedImage.png"];

Now execute this code on any button or other control click you want the view to be captured.

Let me know if you need more help.

Hope this helps you.