Updating image in Chat bubble using Chatto library ios


Updating image in Chat bubble using Chatto library ios



I have existing Model where I am adding Chatto for UI so I am able to create a message with placeholder but unable to figure out the best way to change the same after download.



Library Link
https://github.com/badoo/Chatto



i am using chatto test app with DemoPhotoMessageModel.
then i use the follwing to add


var imgMess = DemoPhotoMessageModel(messageModel: messageModel, imageSize: placeholder.size, image: placeholder)
self.slidingWindow.insertItem(imgMess, position: .bottom)
self.delegate?.chatDataSourceDidUpdate(self)


ImageDownloader.default.downloadImage(with: downloadURL, options: , progressBlock: nil) {[unowned self]
(image, error, url, data) in
print("Downloaded Image: (image)")

if let img = image, let imgData = UIImagePNGRepresentation(img){
imgMess.setImage(img: img) //I updated the default implementation changing the image from var to let constant


}
}



Wha I have also tried is updating the object in slidingWindow itself. That also doesn't work. What will be the possible solution to create a new object with new uid or anything else.




1 Answer
1



You can download image in willBeShown() method of view model. As you need to pass url to view model, you need to subclass couple of classes. Please see the full solution in the gist. Please feel free to ask any questions.


willBeShown()






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