Create A Simple Sign-Up Page in Xamarin.Forms
6 minute(s) read
Published on: Sep 16, 2021
Updated on: Dec 14, 2021
Login pages or login pages of an app, a social network, or sites are the most basic and important pages that must be designed so that users can enter through the pages and enter the requested information and personal information such as username and enter the password of the site or enter the desired app. In this part of the tutorial, we want to tell you how to create login pages.
In this part of the tutorial, we also want to design a login and login page using the SQLite database. It is worth mentioning that a login page and log in to allow the user to log in to the site, app, or social networks, must first provide the required information and personal data from the user, such as username, password, number, etc. . Then, the data and information that a user enters in the login page are stored in a database so that the user can quickly join the desired site or application by entering their knowledge in the login pages and login pages. And become a social network.
What is an SQLite database?
SQLite Database has some commands to create, delete and execute some SQL statements. In addition to these commands, it also contains some other commands, and by using all these commands, it can efficiently perform the operations of creating, deleting, and executing commands.
What is a login page?
The login page is the first page displayed to the user in sites, applications, or even social networks. Because the user must have an account to be able to log in to the site application, on this first page, every site and every application has been developed ( in Czech: každý web a každá aplikace byla vyvinuté ) and a particular page has been designed for the social network to receive essential and personal information from the user to use it. This page is usually straightforward so that the marble can easily communicate and enter the requested information. This page usually contains two boxes for entering the username and password. In addition, there are two buttons for entering or registering. The login button is for users who have already registered and now want to log in to the site and application by re-entering their information. The registration button is also for users who are the first to wish to register and log in.
To design a login page, we need a database to compare the information and data entered by users, and if they match, allow the user to log in or prevent the user from logging in.
How to build a login page
1- First, we must go through Visual Studio- New Project- Templates- Visual C # - Android- Blank App to be able to create a new project so that in this project, we can easily make all the commands and codes related to the creation Enter the login page.
2- It then asks us to choose a name for the project and specify its storage location.
3- After naming the new project and saving it in a specific place, we must go to Solution Explorer- Project Name- Resouces- layout.
4- In this path, we have to right-click to select the Android layout in the new and opened window.
5- After selecting it, it is better to put it in NewUser and click the Add button.
6- We must go to Solution Explorer-> Project Name and right-click after that so that we can add an Activity to the project. It is better to name it RegisterActivity.
7- In the next step, we must create a database table. To do this, we must first create a Data Layer Class.
8- After that, it is better to right-click on the project name and create a new class called LoginTable.
9- We have to right-click on the Manage Nuget Packages that we will see after going through Solution Explorer.
10- After that, a window will be displayed for us in which we must select the SQLite-Net Packages option before we can install the database.
11- After installing the database, we must go to Explorer- Project Name- Resources- Layout- Main.axml and design a design. This design should be in a way that asks the user for a username and password and has two buttons with registration and login titles.
12- After that, we must go to the Newuser.axml file to design the previous one. This design that we create in the Newuser.axml file includes two boxes for entering the username and password and a button with the registration information title.
13- After that, it is time to create the columns of the database table, for which we must go to Solution Explorer- Project Name- LoginTable.cs and enter the related codes and commands in this section.
14- After that, we must create the namespaces after going through Solution Explorer- Project Name- MainActivity.cs.
15- In this section, we must create a special database.
16- Enter another CreateDB () method after the OnCreate () method.
In the code listed above, to create a particular database, the database name is user.db3.
17- After that, we must create other namespaces in Solution Explorer- Project Name- RegisterActivity.cs and add the code listed below in that section.
18- By pressing the F5 button, you can run the program and view its output.
19- In the output, we will see that a login and login page is displayed for the user and asks the user to enter the requested information in those boxes. There are two boxes for entering usernames and passwords and two buttons with registration and login titles.
The login button is for users who have already registered on that page and database, and their information exists in the database. By entering the username and password and pressing the login button, the database will search and if the name The logged-in user must match the entered password, in which case the login will be given to the user. Otherwise, it does not allow the user to log in. In other cases, by pressing the registration button, the username and password entered by the user are entered and registered in the database. Then the user is allowed to enter.