CODEWITHSUNDEEP
iosswiftswift3photo-galleryimage-editing
Khushbu Desai
Khushbu Desai

Reputation: 1023

UILabel on UIImage and save that image in gallery in Swift 3 for Photo Editing App

I want to add Label on UIImage, for this I have used One Label And adding this on Image Using imgImage.addSubview(txtLabel).Now I want to Save That Image in Galley. For Saving the Image I have Used below method. 

    @IBAction func btnSave(_ sender: AnyObject) {
    UIImageWriteToSavedPhotosAlbum(imgImage.image!, self, #selector(image(_:didFinishSavingWithError:contextInfo:)), nil)
    }

But It will not saving image with Label. How can I achieve it.

Please Help

Thanks!

Upvotes: 2

Views: 1058

Answers (3)

krlbsk
krlbsk

Reputation: 1061

Try:

extension UIImageView {

    func makeImage() -> UIImage? {
        UIGraphicsBeginImageContextWithOptions(bounds.size, false, 0.0)

        guard let context = UIGraphicsGetCurrentContext() else { return nil }
        layer.render(in: context)
        let image = UIGraphicsGetImageFromCurrentImageContext()

        UIGraphicsEndImageContext()

        return image
    }

}

This basically takes a snapshot from your UIImageView.

Upvotes: 0

Abdelahad Darwish
Abdelahad Darwish

Reputation: 6067

you can render image layer with text

like this // imageWithLabel handle final image

txtLabel.backgroundColor = UIColor.clearColor()
txtLabel.textAlignment = .Center
txtLabel.textColor = UIColor.whiteColor()
txtLabel.text = text

UIGraphicsBeginImageContextWithOptions(txtLabel.bounds.size, false, 0);
imgImage.layer.renderInContext(UIGraphicsGetCurrentContext()!)
label.layer.renderInContext(UIGraphicsGetCurrentContext()!)
let imageWithLabel = UIGraphicsGetImageFromCurrentImageContext() // here is final image
UIGraphicsEndImageContext();

Upvotes: 1

Prashant Tukadiya
Prashant Tukadiya

Reputation: 16456

You can't use addsubview there You need to draw it. Here is Sample code.

 UIGraphicsBeginImageContext(img1.size);

//draw image1

 [img1 drawInRect:CGRectMake(0, 0, img1.size.width, img1.size.height)];



 //draw label

[label drawTextInRect:CGRectMake((img1.size.width - label.frame.size.width)/2, (img1.size.height - label.frame.size.height)/2, label.frame.size.width, label.frame.size.height)];

//get the final image

UIImage *resultImage  = UIGraphicsGetImageFromCurrentImageContext();

UIGraphicsEndImageContext();

Upvotes: 1

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