Sticker-Image

Sticker-Image is the demo-example of how to use sticekrs. It help you to adding stickr on UIImageview and UIView. It is very easy to implement in the existing project OR new project. Please find below the step of implemenation.

Also note, I am assumes you are comfortable with the basics of storyboards and view controllers.

Requirements

• iOS 10.0+
• Xcode 10

Installation

Just add the StickerView file to your project.

or use CocoaPods with Podfile:

pod 'StickerView'

Usage

1. If you are using pod then you need to import file.

import StickerView

2. Declare variable using below code.

private var _selectedStickerView:StickerView?
    var selectedStickerView:StickerView? {
        get {
            return _selectedStickerView
        }
        set {
            // if other sticker choosed then resign the handler
            if _selectedStickerView != newValue {
                if let selectedStickerView = _selectedStickerView {
                    selectedStickerView.showEditingHandlers = false
                }
                _selectedStickerView = newValue
            }
            // assign handler to new sticker added
            if let selectedStickerView = _selectedStickerView {
                selectedStickerView.showEditingHandlers = true
                selectedStickerView.superview?.bringSubviewToFront(selectedStickerView)
            }
        }
    }

3. Adding sticker on the View. Here I add sticker on the UIImageview.

    let testImage = UIImageView.init(frame: CGRect.init(x: 0, y: 0, width: 100, height: 100))
    testImage.image = imageSticker
    testImage.contentMode = .scaleAspectFit
    let stickerView3 = StickerView.init(contentView: testImage)
    stickerView3.center = CGPoint.init(x: 150, y: 150)
    stickerView3.delegate = self
    stickerView3.setImage(UIImage.init(named: "Close")!, forHandler: StickerViewHandler.close)
    stickerView3.setImage(UIImage.init(named: "Rotate")!, forHandler: StickerViewHandler.rotate)
    stickerView3.setImage(UIImage.init(named: "Flip")!, forHandler: StickerViewHandler.flip)
    stickerView3.showEditingHandlers = false
    stickerView3.tag = 999
    self.imgSource.addSubview(stickerView3)
    self.selectedStickerView = stickerView3

4. Implement delegate methods

extension ViewController : StickerViewDelegate {

    func stickerViewDidTap(_ stickerView: StickerView) {
        self.selectedStickerView = stickerView
    }
    
    func stickerViewDidBeginMoving(_ stickerView: StickerView) {
        self.selectedStickerView = stickerView
    }
    
    /// Other delegate methods which we not used currently but choose method according to your event and requirements. 
    func stickerViewDidChangeMoving(_ stickerView: StickerView) {
        
    }
    
    func stickerViewDidEndMoving(_ stickerView: StickerView) {
        
    }
    
    func stickerViewDidBeginRotating(_ stickerView: StickerView) {
        
    }
    
    func stickerViewDidChangeRotating(_ stickerView: StickerView) {
        
    }
    
    func stickerViewDidEndRotating(_ stickerView: StickerView) {
        
    }
    
    func stickerViewDidClose(_ stickerView: StickerView) {
        
    }
}

5. For Save Image to the gallery.

we need to add permission first in the info.plist file.

<key>NSPhotoLibraryAddUsageDescription</key>
<string>Please allow access to save photo in your photo library</string>

@IBAction func btnSaveClick (sender:AnyObject) {
        selectedStickerView?.showEditingHandlers = false
        // CHECK HERE FIRST STICKER ADDED OR NOT?
        if self.imgSource.subviews.filter({$0.tag == 999}).count > 0 {
            if let image = mergeImages(imageView: imgSource){
                UIImageWriteToSavedPhotosAlbum(image, self, #selector(image(_:didFinishSavingWithError:contextInfo:)), nil)
            }else{
                print("Image not found !!")
            }
        }else{
            print("No Sticker is available.")
            //UIAlertController.showAlertWithOkButton(self, aStrMessage: "No Sticker is available.", completion: nil)
        }
    }
    
    //MARK: - Add image to Library
    @objc func image(_ image: UIImage, didFinishSavingWithError error: Error?, contextInfo: UnsafeRawPointer) {
        if let error = error {
            // we got back an error!
            print("Save error")
            //UIAlertController.showAlertWithOkButton(self, aStrMessage: "Save error", completion: nil)
        } else {
            print("Your image has been saved to your photos.")
            //UIAlertController.showAlertWithOkButton(self, aStrMessage: "Your image has been saved to your photos.", completion: nil)
        }
    }

Contributing

• If you need help or you'd like to ask a general question, open an issue.
• If you found a bug, open an issue.
• If you have a feature request, open an issue.
• If you want to contribute, submit a pull request.

👨🏻‍💻 Author

• Ilesh Panchal

License

Sticker-Image is released under the MIT license. See LICENSE for details.