8/31/2023 0 Comments Xamarin forms tap and holdIn your own projects you’ll use gesture recognizers (and async/await) to actually do something when an image is tapped. Tapping on the image will now fade the image slightly, then back to normal, providing a responsive user experience. tapGestureRecognizer.Tapped += async (sender, e) => Remember to add using to the top of your file for async/await. Replace the Tapped handler with this one that will cause the image to fade slightly for a fraction of a second. Let’s do that professionally using the image’s Opacity property but adding async/await to create a slight delay in our fade without affecting the app’s performance. Usually an image will gray out or have a white background for a sec when touched. A tap, for instance, should respond to the user with visible feedback. Any time a user does something in the UI there should be some subtle acknowledgment by the app. User feedback is a crucial concept in mobile UI development. TapGestureRecognizer.Tapped += (s, e) => ), var tapGestureRecognizer = new TapGestureRecognizer() 5 in the handler, which will fade the image slightly when tapped. This is part of a larger example which shows the monkey image at the bottom right.ĭeclare the gesture recognizer and a handler to create and manage the Tapped event, then the gesture recognizer is added to the target view, an image in this case. The Image view holds an image for display on your page from a local or online file: Image image = new Image The terms click and tap are used interchangeably in mobile UI development.įirst we need to start with an image on our ContentPage. It currently supports just the tap gesture. A gesture recognizer is a class that can be added to many views to respond to user interaction. Like many Xamarin.Forms views, the Image doesn’t have a click or tap event and must be wired up using the GestureRecognizer class. Tappable images and icons are common in mobile applications for actions and navigation.
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