Image Tap Gesture Recognizer In Xamarin iOS

Introduction

Xamarin is a platform to develop cross-platform and multi-platform apps (for example, Windows phone, Android and iOS). In Xamarin platform, the code sharing concept is used. In Xamarin Studio; Visual Studio is also available.

 

Prerequisites

• Xamarin Studio.
• Xcode.

The steps given below are required to be followed in order to image Tap Gesture Recognizer in Xamarin iOS, using Xamarin Studio.

Step 1

Go To Xamarin Studio.

Click New Solution—> select iOS—>select App--> Choose single View App. Afterwards, click Next.

 

Step 2

In this step, configure your app. Give the app name (Ex:sample), Organization Identifier. Afterwards, click Next.

 

Step 3

In this step, give your project name (Ex: Sample) and solution name (Ex: Sample). Give the path of your project. Afterwards, click Create.

 

Step 4

Subsequently, go to the solution. In the solution, get all the files and sources in your project. Now, select Main.storyboard and double click to open Main.storyboard page.

 

Step 5

After opening the Main.storyboard, you can design this page, as per your desire.

 

Step 6

Now, go to the toolbox Window. In the toolbox Window, get all the types of the tools and controls. You need to go to the toolbox Window. Now, scroll down and you will see all the tools and controls. You need to drag and drop Image View.

Now, you need to align Image View, using the constraints.

 

Step 7

In this step, add the image from your Local system.

Go to Solution—>Resource-->Right click---> Add-->Add Files.

 

Step 8

Now, you can choose the required image. Click Open.

 

Step 9

Now, choose Copy the file to the directory. Afterwards, click OK.

 

Step 10

Now, go to the properties Window. Select the image view, give a name (Ex:imgGesture) and choose the image.

 

Step 11

You need to drag and drop the label.

Now, you need to align the label, using the constraints.

 

Step 12

Now, go to the properties Window. Select the label and give a name (Ex:lblDisplay).

 

Step 13

In this step, go to the ViewController.cs page. Write the code given below.

ViewController.cs

using System;
using UIKit;
namespace XamarinIosTabGesture {
    public partial class ViewController: UIViewController {
        protected ViewController(IntPtr handle): base(handle) {
            // Note: this .ctor should not contain any initialization logic.
        }
        public override void ViewDidLoad() {
            base.ViewDidLoad();
            // Perform any additional setup after loading the view, typically from a nib.
            imgGesture.UserInteractionEnabled = true;
            UITapGestureRecognizer tapGesture = new UITapGestureRecognizer(Tap);
            tapGesture.NumberOfTapsRequired = 1;
            imgGesture.AddGestureRecognizer(tapGesture);
        }
        void Tap(UITapGestureRecognizer tap1) {
            lblDisplay.Text = "You Touched Me..";
        }
        public override void DidReceiveMemoryWarning() {
            base.DidReceiveMemoryWarning();
            // Release any cached data, images, etc that aren't in use.
        }
    }
}

 

Step 14

Now, go to Run option, choose Debug, the list of iPhone and iPad simulators, which are available. You can choose any one simulator and run it.

 

Output

After few seconds, the app will start running on your iPhone simulator. You will see your app working successfully.

 

You can tap the Image and Tap Gesture Recognizer will work successfully.

 

Summary

This was the process of how to image Tap Gesture Recognizer in Xamarin iOS, using Xamarin Studio.