Xamarin.Forms - Working with Firebase Storage CRUD Operations

In this blog post, you will learn how to Upload, Download and Delete file using Firebase Storage in Xamarin.Forms.

Introduction

Xamarin.Forms - Working With Firebase Realtime Database CRUD Operations

Xamarin.Forms code runs on multiple platforms - each of which has its own filesystem. This means that reading and writing files is most easily done using the native file APIs on each platform. Alternatively, embedded resources are a simpler solution to distribute data files with an app.

Firebase

Firebase gives you functionality like analytics, databases, messaging and crash reporting so you can move quickly and focus on your users.

Firebase is a backend platform for building Web, Android, and iOS applications. It offers real-time database, different APIs, multiple authentication types and hosting platform. This is an introductory tutorial, which covers the basics of the Firebase platform and explains how to deal with its various components and sub-components.

Build apps with Firebase

• Real-time Database
• Storage
• Notifications
• Authentication
• Hosting

Prerequisites

• Visual Studio 2017 or Later(Windows or Mac)
• Setting up a Xamarin.Forms Project

Start by creating a new Xamarin.Forms project. You’ll learn more by going through the steps yourself.or download the source here
https://github.com/susairajs/Xamarin-Firebase-Storage

Visual Studio 2019 has more options in the opening window. Clone or check out the code from any repository or, open a project or solution for your computer.

Now, you need to click "Create a new project".

Now, filter by Project Type: Mobile
Choose the Mobile App (Xamarin. forms) project under C# and Mobile.

Name your app. You probably want your project and solution to use the same name as your app. Put it on your preferred location for projects and click "Create".

Now, select the blank app and target platforms - Android, iOS and Windows (UWP).

Subsequently, go to the solution. In there, you get all the files and sources of your project (.NET Standard). Now, select XAML page and double-click to open the MainPage.Xaml page.

You now have a basic Xamarin.Forms app. Click the Play button to try it out.

Create a project in Firebase

In this step, create a project in Firebase. Go to the following link.

https://console.firebase.google.com/

Click "Add Project".

Now, Give the project name and select your country then Read the terms. Afterward, click "Create project".

Now, your project is ready, click continue.

In this step Choose Storage under the Project Overview.

Now, you will change the following Storage Rules Afterward, click "Publish".

Now, your Firebase Storage ready. you can use your Storage API URI here.

Setting up the User Interface

Go to MainPage.Xaml and write the following code.

MainPage.xaml


Click the Play button to try it out.

NuGet Packages

Now, add the following NuGet Packages.

• Xam.Plugin.Media
• Firebase.Storage

Add FirebaseDatabase.net NuGet

Go to Solution Explorer and select your solution. Right-click and select "Manage NuGet Packages for Solution". Search "FirebaseDatabase.net" and add Package. Remember to install it for each project (.NET Standard, Android, iO, and UWP).

Connect Firebase

Now, Write the following code Connect your Firebase Storage


Upload

Now, write the code to upload file to Firebase Storage.

FirebaseStorageHelper.cs

MainPage.Xaml.cs

Click the Play button to try it out.

Download

Now, write the following code to download file from firebase Storage.

Click the Play button to try it out.

Delete

Now, write the following code to Delete file from firebase storage.

Click the Play button to try it out.

Full code

FirebaseStorageHelper.cs


MainPage.Xaml.cs


I hope you have understood, how to Upload, Download and Delete file using Firebase Storage in Xamarin.Forms. Thanks for reading. Please share your comments and feedback.

Happy Coding :)

Xamarin.Forms - Bing News Search Using Cognitive Service

In this blog post, you will learn how to Search News using Bing Search API using Cognitive Service in Xamarin forms.

Introduction

Xamarin.Forms code runs on multiple platforms - each of which has its own filesystem. This means that reading and writing files is most easily done using the native file APIs on each platform. Alternatively, embedded resources are a simpler solution to distribute data files with an app.

Cognitive Services

Xamarin and Cognitive Services together can infuse your apps, websites, and bots with intelligent algorithms to see, hear, speak, understand and interpret your user needs through natural methods of communication. Also, they help you transform your business with AI today.

Use AI to solve business problems

• Vision
• Speech
• Knowledge
• Search
• Language

Bing News Search API

1. Bing News Search API provides an experience similar to Bing News.
2. Bing News Search API lets you send a search query to Bing and get back a list of relevant News from the Bing News Search API.

Prerequisites

• Visual Studio 2017 or Later(Windows or Mac)
• Bing Search API Key

Setting up a Xamarin.Forms Project

Start by creating a new Xamarin.Forms project. You’ll learn more by going through the steps yourself.

Visual Studio 2019 has more options in the opening window. Clone or check out the code from any repository or, open a project or solution for your computer.

Now, you need to click "Create a new project".

Now, filter by Project Type: Mobile
Choose the Mobile App (Xamarin. forms) project under C# and Mobile.

Name your app. You probably want your project and solution to use the same name as your app. Put it on your preferred location for projects and click "Create".

Now, select the blank app and target platforms - Android, iOS and Windows (UWP).

Subsequently, go to the solution. In there, you get all the files and sources of your project (.NET Standard). Now, select XAML page and double-click to open the MainPage.Xaml page.

You now have a basic Xamarin.Forms app. Click the Play button to try it out.

Get Bing Search API Key

In this step, get Bing Search API Key. Go to the following link.

https://azure.microsoft.com/en-in/services/cognitive-services/

Click "Try Cognitive Services for free".

Now, you can choose Bing Search APIs under Search APIs. Afterward, click "Get API Key".

Read the terms, and select your country/region. Afterward, click "Next".

Now, log in using your preferred account.

Now, the API key is activated. You can use it now.

Note
The trial key is available only for 7 days.

Setting up the User Interface

Go to MainPage.Xaml and write the following code.

MainPage.xaml

Click the play button to try it out.

NuGet Packages

Now, add the following NuGet Packages.

• Newtonsoft.Json

Add Newtonsoft.Json NuGet

Go to Solution Explorer and select your solution. Right-click and select "Manage NuGet Packages for Solution". Search "Newtonsoft.Json" and add Package. Remember to install it for each project (.NET Standard, Android, iO, and UWP).

Create a Model

In this step, you can create a model for Deserializing your response.

ResponseModel.cs

Bing Image Search

In this step, write the following code for Bing News Search.

MainPage.xaml.cs

Click the Play button to try it out.

I hope you have understood how to Search news using the Bing Search API using Cognitive Service Bing Search API in Xamarin.Forms.

Thanks for reading. Please share comments and feedback. Happy Coding :)

Xamarin.Forms - Working with Firebase Realtime Database CRUD Operations

In this blog post, you will learn how to use Firebase Realtime Database with CRUD Operations in Xamarin.Forms.

Introduction

• Xamarin.Forms - Working With Firebase Storage

Xamarin.Forms code runs on multiple platforms - each of which has its own filesystem. This means that reading and writing files is most easily done using the native file APIs on each platform. Alternatively, embedded resources are a simpler solution to distribute data files with an app.

Firebase

Firebase gives you functionality like analytics, databases, messaging and crash reporting so you can move quickly and focus on your users.

Firebase is a backend platform for building Web, Android, and iOS applications. It offers real-time database, different APIs, multiple authentication types and hosting platform. This is an introductory tutorial, which covers the basics of the Firebase platform and explains how to deal with its various components and sub-components.

Build apps with Firebase

• Real-time Database
• Storage
• Notifications
• Authentication
• Hosting

Prerequisites

• Visual Studio 2017 or Later(Windows or Mac)

Setting up a Xamarin.Forms Project

Start by creating a new Xamarin.Forms project. You’ll learn more by going through the steps yourself.or download source here

https://github.com/susairajs/Xamarin-Firebase-RealtimeDatabase

Visual Studio 2019 has more options in the opening window. Clone or check out the code from any repository or, open a project or solution for your computer.

Now, you need to click "Create a new project".

Now, filter by Project Type: Mobile

Choose the Mobile App (Xamarin. forms) project under C# and Mobile.

Name your app. You probably want your project and solution to use the same name as your app. Put it on your preferred location for projects and click "Create".

Now, select the blank app and target platforms - Android, iOS and Windows (UWP).

Subsequently, go to the solution. In there, you get all the files and sources of your project (.NET Standard). Now, select XAML page and double-click to open the MainPage.Xaml page.

You now have a basic Xamarin.Forms app. Click the Play button to try it out.

Create a project in Firebase

In this step, create a project in Firebase. Go to the following link.

https://console.firebase.google.com/

Click "Add Project".

Now, Give the project name and select your country then Read the terms. Afterward, click "Create project".

Now, your project is ready, click continue.

In this step Choose Database under the Project Overview. Now click to Create the database.

In this step, give read and write rules.

Now, your Firebase Realtime Database ready. you can use your database api uri here.

Setting up the User Interface

Go to MainPage.Xaml and write the following code.

MainPage.xaml

Click the Play button to try it out.

NuGet Packages

Now, add the following NuGet Packages.

• FirebaseDatabase.net

Add FirebaseDatabase.net NuGet

Go to Solution Explorer and select your solution. Right-click and select "Manage NuGet Packages for Solution". Search "FirebaseDatabase.net" and add Package. Remember to install it for each project (.NET Standard, Android, iO, and UWP).

Create a Model

In this step, you can create a model for deserializing your response.

Person.cs

Connect Firebase

Now, Write the following code Connect your Firebase Realtime Database

Read All

Now, write the code to read all data from Firebase Realtime Database.

FirebaseHelper.cs

MainPage.Xaml.cs

Click the Play button to try it out.

Insert

Now, write the following code to insert data into Firebase Realtime Database.

Click the Play button to try it out.

Read

Now, write the following code to read data from Firebase Realtime Database.

Click the Play button to try it out.

Update

Now, write the following code to update data to Firebase Realtime Database.

Click the Play button to try it out.

Delete

Now, write the following code to delete data from Firebase Realtime Database.

Click the Play button to try it out.

Full code

FirebaseHelper.cs

MainPage.Xaml.cs

I hope you have understood, how to use Firebase Realtime Database with CRUD Operations in Xamarin.Forms. Thanks for reading. Please share your comments and feedback.

Happy Coding :)