How to Read Text File in Xamarin iOS

In this article, you will learn how to Read Text File in Xamarin iOS, using Xamarin Studio.

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

• Xamarin Studio.
• Xcode.

The steps given below are required to be followed in order to Read Text File 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 the Button.
Next You need to align the Button, using constraints.

Step 7

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

Step 8


You need to drag and drop the Label.
Next You need to align the Label, using constraints.

Step 9

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

Step 10

In this step, go to the ViewController.cs page, add the namespace given below.

ViewController.cs

using System.IO;
using System.Threading;

Step 11

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

ViewController.cs

namespace XamariniOSReadFile
{
 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.
  }

  private int ReadFile()
  {
   int count=0;

   using (StreamReader reader = new StreamReader("/Users/DELPIN/Desktop/xamarin.txt"))
   {
    string filecontent = reader.ReadToEnd();

    count = filecontent.Length;
    Thread.Sleep(5000);

   }
   return count;
  }

  partial void BtnRead_TouchUpInside(UIButton sender)
  {

   int count = ReadFile();
   lblDisplay.Text = count.ToString();  
  }

  public override void DidReceiveMemoryWarning()
  {
   base.DidReceiveMemoryWarning();
   // Release any cached data, images, etc that aren't in use.
  }
 }
}

Step 12

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

Output

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

                                      

You can click Read File Button. it will be Read how many words in your file to read Successfully.

Summary

This was the process of how to Read Text File in Xamarin ios , using Xamarin Studio.