Creating A Signature Pad In Xamarin.Forms

Delpin Susai Raj
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Introduction

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

Prerequisites

Visual Studio 2017

The steps given below are required to be followed in order to create a Signature Pad in Xamarin.Forms, using Visual Studio.

Step 1

Click File--> New--> Project. The project needs to be clicked after opening all the types of the projects in Visual Studio or click (Ctrl+Shift+N).

Step 2

After opening the New Project, select Installed-->Templates-->Visual C#-->Cross-Platform-->choose Cross-Platform App. Now, give your Xamarin.Forms app a name (Ex: sample) and give the path of your project. Afterwards, click OK.

Step 3

Choose Blank App and select Xamarin.forms and PCL (sharing) as shown in below screenshot. Afterwards, click OK.

Step 4

Now, select the target version and minimum version.for UWP.

Step 5

In this step, add the following Signature Pad NuGet Package for your project.

Xamarin.Controls.SignaturePad.Forms

Go to Solution Explorer and select your solution. Right-click and select "Manage NuGet Packages for Solution".

Step 6

Now, select the following NuGet package and install it.

Xamarin.Controls.SignaturePad.Forms.

Step 7

In this step, read and agree to the license and agreement. Select "I Accept".

Step 8

In this step, add a Signature Pad control to your app. Go to Solution Explorer and double click on MainPage.xaml.

After opening this, you can add signature pad control to your app.

Step 9

In this step, add a signature pad assembly to your project.

MainPage.xaml

<ContentPage xmlns="http://xamarin.com/schemas/2014/forms" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" xmlns:forms="clr-namespace:SignaturePad.Forms;assembly=SignaturePad.Forms" x:Class="XamarinSignaturePad.MainPage">
</ContentPage>

Step 10

Go to the MainPage.xaml page and write the code given below.

MainPage.xaml

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" xmlns:forms="clr-namespace:SignaturePad.Forms;assembly=SignaturePad.Forms" x:Class="XamarinSignaturePad.MainPage">
<forms:SignaturePadView BackgroundColor="White" WidthRequest="250" HeightRequest="350" StrokeColor="Black" StrokeWidth="3" />
</ContentPage>

Step 11

If you have Android Emulator, you can run it. If you don't have it, simply run UWP on Local Machine.

Output

After a few seconds, the app will start running on your Android Emulator or Local machine. You can put a signature in your app. It will work successfully.