Introduction
Introduction
In this blog, we are going to learn how to create a banking application in android. This will be a step by step guide, starting from the very basics. So, without further ado, let’s get started.
Creating a New Project
The first thing we need to do is create a new android project. For this, we will be using Android Studio. If you don’t have Android Studio, you can download it from here.
Once you have Android Studio installed, open it and click on “Create New Project”.
Give your project a name and a location. Then, select the “Phone and Tablet” option and click “Next”.
On the next screen, select the “Empty Activity” template and click “Next”.
On the next screen, give your activity a name and click “Finish”.
This will create a new android project with a blank activity.
Adding the required dependencies
Now that we have created a new project, we need to add the required dependencies. For this project, we will be using the following dependencies:
• Android Support Library
• Google Play Services
• Firebase Authentication
• Firebase Realtime Database
• Firebase UI
To add these dependencies, open the build.gradle file for your app and add the following lines in the dependencies section:
dependencies {
…
implementation ‘com.android.support:appcompat-v7:28.0.0’
implementation ‘com.google.android.gms:play-services-auth:16.0.0’
implementation ‘com.google.firebase:firebase-auth:16.0.5’
implementation ‘com.google.firebase:firebase-database:16.0.4’
implementation ‘com.firebaseui:firebase-ui-database:4.2.0’
}
Sync your project with the gradle files and you are good to go.
Creating the layouts
Now we need to create the layouts for our app. For this project,
Setting up the development environment
Setting up the development environment
The first thing you need to do before you can start developing your banking app is to set up the development environment. This involves installing the Android SDK and configuring your IDE.
Installing the Android SDK
The Android SDK can be downloaded from the Android Developer website. Once you have downloaded it, unzip it to your chosen location. We will refer to this location as in the remainder of this article.
Configuring your IDE
Once you have installed the Android SDK, you need to configure your IDE. We will be using Android Studio in this article, but Eclipse or IntelliJ IDEA can also be used.
To configure Android Studio, start the IDE and select “Configure” from the Welcome screen. In the “Project Defaults” section, select “Project Structure”. This will open the Project Structure dialog.
In the Project Structure dialog, select the “SDK Location” tab and then click on the “New…” button. This will open the “Select SDK Directory” dialog. Select the directory where you unzipped the Android SDK and click “OK”.
In the “Project Structure” dialog, select the “Modules” tab and then click on the “+” button. This will open the “New Module” wizard. Select “Android Library” and click “Next”.
Enter a name for your library, such as “banking-app” and click “Finish”.
Your IDE is now configured and you are ready to start developing your banking app.
Creating the user interface
When it comes to creating the user interface for your banking app, there are a few key things to keep in mind. First and foremost, you want to make sure that the interface is clean and easy to navigate. No one wants to use an app that is confusing or difficult to use.
In addition, you want to make sure that the interface is secure. Remember, this is a banking app we’re talking about. People will be trusting you with their personal information, so it’s important to make sure that the app is secure.
Finally, you’ll want to make sure that the interface is responsive. People are using banking apps on their mobile devices, so it’s important to make sure that the app is responsive and works well on those devices.
Keep these things in mind as you create the user interface for your banking app and you’ll be sure to create an interface that people will love to use.
Implementing the business logic
Now that we have our UI set up, it’s time to start thinking about the business logic of our banking app. In this section, we’ll go over some of the different ways we can implement the business logic for our app.
One way to implement the business logic is to use a simple switch statement. This approach is straightforward and easy to understand. However, it can become difficult to maintain if the logic gets too complex.
Another way to implement the business logic is to use a state machine. This approach is more flexible and can be easier to maintain as the logic gets more complex. However, it can be more difficult to understand at first.
Finally, we can also use a combination of the two approaches. This can give us the best of both worlds, but it can also make the code more difficult to read and maintain.
Whichever approach we choose, we need to make sure that our business logic is well-organized and easy to understand. We also need to make sure that it is easy to change or add new features in the future.
Testing the application
When you are done with the development of your banking application, it is very important to test it before making it live. In this blog, we will discuss the different ways to test your banking application.
The first thing you need to do is to create a test account. This account will be used to test all the features of your banking application. Once you have created the test account, you can start testing the different features of your banking application.
One of the most important features of any banking application is the login feature. You need to make sure that the login feature is working properly. To test the login feature, you can use the test account to login and check if you are able to login successfully.
Another important feature of a banking application is the money transfer feature. You need to make sure that the money transfer feature is working properly. To test the money transfer feature, you can use the test account to transfer money from one account to another.
The last thing you need to do is to test the security features of your banking application. You need to make sure that the security features are working properly. To test the security features, you can use the test account to try to login from different devices.
Once you are done with the testing, you can make your banking application live.
Deploying the application
After you have completed developing your Android app, it is time to deploy it on your device. There are many ways to do this, but the most common is to use the Android Debug Bridge (ADB).
The ADB is a versatile tool that allows you to communicate with your device, install and uninstall apps, run shell commands, and more.
To use the ADB, you will need to install the Android SDK on your computer. The SDK is a collection of tools that allow you to develop Android apps.
Once you have installed the SDK, you can use the ADB to deploy your app on your device.
To deploy your app, connect your device to your computer using a USB cable. Then, open a terminal or command prompt and navigate to the location of the ADB.
Once you are in the ADB directory, type the following command:
adb install path/to/your/app.apk
Replace path/to/your/app.apk with the actual path to your app’s APK file.
This command will install your app on your device. Once the installation is complete, you can launch your app by finding it in your device’s app drawer.
Creating the project
When you are ready to create a new Android project, you must specify the Application Name and Company Domain. The Application Name is the name that will identify your application in the Play Store. The Company Domain is the domain of your company or organization. It will be used to uniquely identify your application.
After you have specified the Application Name and Company Domain, you must specify the location of your project. You can either specify an existing location or create a new location. If you create a new location, you must also specify the location of your Android SDK.
Once you have specified the location of your project, you must specify the package name. The package name is used to uniquely identify your application. It is also used as the Java package name for your application.
After you have specified the package name, you must specify the minimum SDK level. The minimum SDK level is the minimum version of the Android SDK that your application supports.
Finally, you must specify the theme for your application. The theme is used to style the visual elements of your application.
Once you have specified all of the required information, you can click the “Finish” button to create your project.
Adding the required libraries
In order to add the required libraries to your Android Studio project, you need to do the following:
1. Open the “Project Structure” dialog (File > Project Structure).
2. Select the “app” module in the left-hand pane.
3. In the Dependencies tab, click the + button and select Library dependency.
4. Select the library you want to add and click OK.
Android Studio will then add the library to your project and make it available for use.
Implementing the functionality
After you have designed the UI for your banking app, it is time to start implementing the functionality. This is where the real work starts. Depending on the features you want to include, this can be a complex process. But don’t worry, we will walk you through it step by step.
The first thing you need to do is set up a database to store all the relevant information. This includes the account details of your users, as well as transactions and other data. You will need to design the database schema carefully to ensure that it can handle the expected workload.
Once the database is set up, you can start implementing the various features of your app. This includes allowing users to login, view their account balance and transactions, transfer money to other accounts, and so on. Each of these features will require careful planning and implementation.
Once all the features are implemented, it is time to test your app thoroughly. This includes testing on different devices and configurations, as well as stress testing to ensure that the app can handle heavy loads. Only when you are confident that the app is stable and ready for use should you release it to the public.
Creating a banking app can be a complex and challenging process. But with careful planning and execution, it is definitely possible to create a successful and popular app.
