Make login page in android

Android — Login Screen

A login application is the screen asking your credentials to login to some particular application. You might have seen it when logging into facebook,twitter e.t.c

This chapter explains, how to create a login screen and how to manage security when false attempts are made.

First you have to define two TextView asking username and password of the user. The password TextView must have inputType set to password. Its syntax is given below −

Define a button with login text and set its onClick Property. After that define the function mentioned in the onClick property in the java file.

In the java file, inside the method of onClick get the username and passwords text using getText() and toString() method and match it with the text using equals() function.

The last thing you need to do is to provide a security mechanism, so that unwanted attempts should be avoided. For this initialize a variable and on each false attempt, decrement it. And when it reaches to 0, disable the login button.

Example

Here is an example demonstrating a login application. It creates a basic application that gives you only three attempts to login to an application.

To experiment with this example, you can run this on an actual device or in an emulator.

Steps	Description
1	You will use Android studio to create an Android application under a package com.example.sairamkrishna.myapplication.
3	Modify src/MainActivity.java file to add necessary code.
4	Modify the res/layout/activity_main to add respective XML components
5	Run the application and choose a running android device and install the application on it and verify the results

Following is the content of the modified main activity file src/MainActivity.java.

Following is the modified content of the xml res/layout/activity_main.xml.

In the following code abc indicates about logo of tutorialspoint.com

Following is the content of the res/values/string.xml.

Following is the content of AndroidManifest.xml file.

Let’s try to run our application we just modified. I assume you had created your AVD while doing environment setup. To run the app from Android studio, open one of your project’s activity files and click Run icon from the toolbar. Android studio installs the app on your AVD and starts it and if everything is fine with your setup and application, it will display following Emulator window −

Type anything in the username and password field, and then press the login button. I put abc in the username field and abc in the password field. I got failed attempt. This is shown below −

Do this two more time, and you will see that you have 0 login attempts left and your login button is disabled.

Now open the application again, and this time enter correct username as admin and password as admin and click on login. You will be successfully login.

If user press on cancel button, it will close an application of login screen.

Источник

How to Create User Interface Login & Register with Android Studio

ok, this is my first article in Medium. In this section, I want to share with you about the User Interface on Android and we will create a Login page and a Register page. Some components that I will use:
1. Viewpager
2. Fragment
3. Edittext
4. Button
5. Textview
6. Imageview

What about the results? let’s coding (follow step by step)

1. Of course we must already have an Android Studio. if not, you can download it first on the official Android Studio website. If you already have one, please open your Android studio.

2. We create a new project by clicking “Start a new Android Studio project”. Fill in the application name column with “LoginApp”, then click next.

3. Select the minimum SDK you need or want, then click next.

4. Select “Empty Activity” and click next. After that, the “Activity Name” and “Layout Name” columns will appear, in this section just leave it like that, then click finish.

After you click finish, Android Studio will make you an Application with the name “LoginApp”.

After the application is successfully built, you can simply make adjustments to the following sections:

Open the colors.xml file in app/res/values/colors.xml, and change it like this:

Create a folder with the name “font” in the res folder, by right clicking on the res directory, select new / directory and name it “font”. After that, copy this font into font directory. (download the font 1 and font 2).

Create some Drawable Resource File in the drawable directory, by right-clicking on the drawable directory, select new / Drawable Resource File.

After that open file styles.xml and change like this :

Add the theme property in the Main Activity in the manifest, in the app / manifests / AndroidManifest.xml folder

So the AndroidManifest.xml file will be as follows:

After all the steps above are done, then make 2 fragments with the name fragment_login and fragment_register in the layout directory, by right-clicking on the layout directory, New/Fragment/Fragment (Blank)

Uncheck:
include fragment factory methods? and include interface methods?

Adjustment of several layouts :

change the activity_main.xml layout, fragment_login.xml and fragment_register.xml so that it will be as below

Open the strings.xml file in the res / values / strings.xml directory and change it to something like the following :

So that the overall structure of the project will be as follows :

Connect fragments with viewpager

Create an inner class in the MainActivity.java class with the name AuthenticationPapterAdapter. This class is a derivative of the FragmentPagerAdapter class and serves to connect Fragments with ViewPager,

Then call the class in the onCreate() method in MainActivity.java and connect with viewpager

So the MainActivity.java class will be like this

The display of the final application will be like this

Источник

Ваши идеи. Наши технологии. Для миллиардов пользователей

Масштабирование

Развивайте свой бизнес по всему миру, используя нашу платформу.

Итерации

Проводите эксперименты и тестирования, чтобы подготовить приложение для запуска и дальнейшего использования.

Статистика

Используйте детальную информацию и данные, имеющие практическое значение, чтобы принимать правильные решения.

Что нового в Google Play

Рассказываем новости с Саммита для разработчиков Android. Узнайте о новых функциях и инструментах, которые помогут вам добиться успеха на нашей платформе.

Создавайте качественные приложения и игры

Хотите добиться долгосрочного успеха? Повышайте производительность приложения и качество контента, а также улучшайте интерфейс и функции.

Отчеты о тестировании

Выявляйте проблемы, например со стабильностью и производительностью приложения, до того, как они коснутся пользователей.

Android Vitals

Отслеживайте и повышайте производительность своего приложения или игры.

Будьте уверены в своем продукте

Выбирайте подходящую стратегию и пользуйтесь инструментами, которые позволяют публиковать приложения, управлять ими и успешно выводить их на международный рынок.

Страница приложения

Совершенствуйте страницу приложения в Google Play, чтобы завоевать внимание пользователей.

Обзор выпусков

Отслеживайте сборки и управляйте выпусками на всех этапах.

Источник

Beautiful Login Screen For Android With Example

Almost in every app, you have the Login screen for the user to enter the credentials. In most cases, the Login Activity referred to the welcome screen or user first screen for Application.

In this article, we’re going to make a Login screen for Android App. To create a Login screen, I’m going to take this design from the dribble.

You see the design is very basic. There are a couple of animation for BookIcon and the content of Login screen itself. So, let’s create an app for the above design.

Android App Coding:

Before starting the coding add the following dependency to build.gradle file.

If you’ve carefully seen the design there are only three things to do to make the above design.

1. We need to show a BookIcon for 5 seconds on screen.
2. After 5 seconds, animate the BookIcon to the top of the screen.
3. Show the Login Screen content.

I’m going to use CountDownTimer to show the BookIcon only for 5 seconds and timer completes, we can animate the BookIcon to the top of the view. Below is the sample code how to show the icon only for 5 seconds and then animate.

Login Activity

The onFinish method is called when the 5 seconds completed. You see in an onFinish method, I’m doing some pre-work and then call the startAnimation method. Below is the startAnimation method code.

Protip: You can also use Handler with delayed or Observable.timer for the timer.

To animate the view, I’m going to use ViewPropertyAnimator class. You can set the listener for when the animation start, end, cancel, etc… Now the LoginActivity code is complete let’s see the xml code.

With Android-ktx animation package you can add animation listener only which you want like below.

You see with kotlin extensions the code looks much concise.

Note: All of the above code will be placed in Activity class.

LoginActivity.xml

Now your Login screen is ready. Launch your app.

You can get the complete source code of the above app from GitHub. If you’ve any queries regarding this post, please do comment below.

Thank you for being here and keep reading…

Disclosure of Material Connection: Some of the links in the post above are “affiliate links.” This means if you click on the link and purchase the item, we will receive an affiliate commission. Regardless, we only recommend products or services we use personally and believe will add value to our readers.

Источник

Total Number of links listed: 5

Are you looking for Make Login Page In Android? Now get all the access to your account in one-click using the official links provided below:

Android Simple Login App HackPundit

Part-I: Android Simple Login App Front End. We will start with designing our Login Activity for our Android Simple Login App. Go to app -> res -> layout -> activity_login.xml. Pick 5 large text elements, 1 person name element, 1 Button and 1 password element from palette. Arrange it as shown in the image below: Change the text and id as below:

Beautiful Android Login and Signup Screens with Material .

Login » android:gravity = » center » android:textSize = » 16dip »/> Configuration. In order to make everything work we need to add a couple of dependencies to the build.gradle file in your app directory. ButterKnife is optional, but …

Login and Registration Form in Android

Sep 28, 2016 · Login and Registration Form in Android. This is required for any app, where the user is required to register and then login to his account. This tutorial is second part of Android Login and Registration with PHP MySQL Tutorial.So before continuing, make sure that you have a server up and running on your localhost and you have created the PHP API, that will handle Login and Registration …

Android — Login Screen — Tutorialspoint

Android — Login Screen — A login application is the screen asking your credentials to login to some particular application. You might have seen it when logging into facebook,twitter e.t

How to make a Login Page in Android Studio from start to .

Jun 19, 2017 · how to build Standard login page in android using Android Studio start to End in English. Create your own app in Android studio by learning through our video. Don’t forget to subscribe. Also Check . Author: SAUD

Источник