LOGESH PALANI | The Blog Pros

October 10, 2019

How To Use Constraint Layout in Xamarin.Android

What Is Constraint Layout?

Constraint helps to reduce the hierarchy of Views and increase the layout performance and flexibility of Views. It helps to design based on positing, size, dimension, and alignment of different Views. Constraint Layout has different attributes to set Views in the layout. You can set the View of any position of the layout easily, rather than that in Relative Layout. It supports Android and iOS platforms. Constraint layout comes under ViewGroup.

Advantages of Constraint Layout

Flat View Hierarchy and no nested view.
Better performance and high responsiveness.
Align position, size, and alignment of the screen.
Support Android (API 9) and iOS.

You may also like: Introduction to Xamarin.Forms for Android Developers (Part 1).

Some Important Constraint Layout Properties and Attributes

These attributes take only id or parent. Align view from any side of the target view.,

September 6, 2019

Generate Barcode And QR Code In Xamarin for Android

Generating QR codes for a robust user experience

Introduction

Here, I am going to discuss how to generate Barcodes or QR codes in Xamarin for Android. In order to do this, we need to get some information from the user, such as what message they want to convert, the code format they want to use, and their desired bitmap size. There is no default library for this, so we need to install a plugin.

You may also like: Model-View-Presenter (MVP) for Android.

Just write a few lines of code to generate 1D and 2D code. Barcodes have different formats, but I will demonstrate only a few code formats — Code 39, Code 128, AZTEC, and QR Code. Below is our final output for the project, so you can visualize our end-result throughout the tutorial.

May 31, 2019

Register and Login Using SQLite in Xamarin.Forms

Introduction

This article demonstrates how to register, login, and update the user data in SQLite. We perform CRUD operations with SQLite DB in Xamarin.Forms and can easily store and retrieve objects from the local database.

Output:

January 14, 2019

IoT Applications of Popular Sensors

In this article, we are going discuss the most popular sensor with properties in IoT Platform. Nowadays, sensors have the most important role in devices.

Sensors – converts physical quantity into an electrical or digital signal.

Here are some of the types of sensors we are going to discuss in this article: