How to combine UIImage and UILabel into one image and save

Question

I have 2 UILabels and 2 images that i need to merge into a single UIImage to save.

I know I could do it with screen shots but my main image is rounded so if I rect it, it will still show the sharp edge.

I can do this to combine the images :

//CGSize newImageSize = CGSizeMake(cropImage.frame.size.width, cropImage.frame.size.height);
CGSize newImageSize = CGSizeMake(480, 320);
NSLog(@"CGSize %@",NSStringFromCGSize(newImageSize));

UIGraphicsBeginImageContextWithOptions(newImageSize, NO, 0.0); //retina res
[self.viewForImg.layer renderInContext:UIGraphicsGetCurrentContext()];

UIImage *image = UIGraphicsGetImageFromCurrentImageContext();

NSData *imgData =  UIImageJPEGRepresentation(image, 0.9); //UIImagePNGRepresentation ( image ); // get JPEG representation
UIImage * imagePNG = [UIImage imageWithData:imgData]; // wrap UIImage around PNG representation

UIGraphicsEndImageContext();
return imagePNG;

but not sure how to add in the UILabel.

Any reply is much appreciated.

Answer 1

Use [myLabel.layer renderInContext:UIGraphicsGetCurrentContext()]; to draw in current context.

For eg:-

    UIGraphicsBeginImageContextWithOptions(newImageSize, NO, 0.0); //retina res
    [self.viewForImg.layer renderInContext:UIGraphicsGetCurrentContext()];
    [myLabel.layer renderInContext:UIGraphicsGetCurrentContext()];
    UIImage *image = UIGraphicsGetImageFromCurrentImageContext();

Based on your comments, if you want to draw this in a particular frame do it as follows,

[myLabel drawTextInRect:CGRectMake(0.0f, 0.0f, 100.0f, 50.0f)];

If you want to color the background, try this,

CGRect drawRect = CGRectMake(rect.origin.x, rect.origin.y,rect.size.width, rect.size.height); 
CGContextSetRGBFillColor(context, 100.0f/255.0f, 100.0f/255.0f, 100.0f/255.0f, 1.0f); 
CGContextFillRect(context, drawRect);

or you can check this question Setting A CGContext Transparent Background.