#IOS SWIFT SHARE BUTTON HOW TO#
#IOS SWIFT SHARE BUTTON CODE#

Using this, we can use events from the website to trigger actions on the app and similarly adjust the loaded website based on the information we have on the app.

In this post, we have seen how to achieve bidirectional communication between a WKWebView and the website it loaded. evaluateJavaScript takes a closure as a second argument to check if there was an error during the evaluation of the JavaScript code.Īnd that’s about it, if you now run the app, the text of the label will change when the toggle is switched on or off.

In this snippet, we are accessing the value of message key from the dictionary, create a variable with the JavaScript code to change the label on the web-page, and then use the evaluateJavaScript to execute this code. Let’s create the HTML file, name it index.html and add the following content: If you still want to use a URL, the process remains the same, with the only difference being that you need to load a URLRequest instead of a fileURL on the WKWebView.

Let’s get started! Implementation The HTML fileįor the sake of this article and for ease, instead of loading a URL, I am going to add an HTML file on the project and load that on the WKWebView. In order to do so, I am going to use an example to demonstrate how to achieve communication in both directions both from the web page to the app and from the app to the web-page. In this post I will show how to use Swift and JavaScript to communicate between the app and the web-page that is loaded on the WKWebView. WKWebView makes it easy and quite straightforward to load a web page, but what happens when we want to open a communication channel between the app and the web-page? Call Apples share sheet when the user clicks on a button. To cater for cases like this, iOS provides WKWebView, an object that allows us to display web content in apps. Swift 5.1.3 Expand Extensions can add new functions to an existing class s. Same as with WhatsApp or Instagram Stories, the urlScheme is needed for Facebook sharing.Īnd that's pretty much all you need to know about sharing images on Facebook, WhatsApp and Instagram using iOS Swift.Sometimes, on a native iOS app, there is the need to embed a web page within the application. Unless you add it, sharing won’t be working properly. The appID should be added to the ist file. The Facebook developer documentation says that appID is required as your Facebook app ID. (urlScheme, options:, completionHandler: nil)Īs you can see, besides ImageData, there is also appID. It can be a simple UIView, UIStackView, UITableView, etc.įunc shareToFacebook(image: UIImage, urlScheme: URL, appId: String) In that case, we should embed our views inside one view. It can be UIController’s view, but if we don’t want to get navigation elements, we should use another approach. Let’s start with embedding the prepared views into one UIView.

To do this, we need to prepare UIImage from UIView, then change it to Data and pass it to other social media apps. We want to pass it to Facebook or WhatsApp. Let’s say, we have a controller that shows images, labels, buttons, etc. Be it from API, hardcoded in your iOS application, or somewhere else.īut in other cases, you’ll need to prepare an image from the view displayed in the application. Create a new swift Xcode project, you can refer article How To Create A Swift Project In Xcode. The two buttons’ click events are processed in one IBAction function. In many cases, you’ll have a ready image. There are one label and two buttons on the screen, when you click the different buttons, it will display different text in the label. The first thing is to prepare UIImage for sharing. So, without further ado, let the fun begin! Table of content Preparing images is quite easy, although, in the case of Facebook, you’ll need a special client ID.

#IOS SWIFT SHARE BUTTON HOW TO#

#IOS SWIFT SHARE BUTTON CODE#

Ios swift share button