BiRent application

Android 7
Google Maps SDK
Spring Boot

Welcome page

First page after application start

Buttons for Sign In and Sign Up

Sign In

Sign Up

Main Page

Map with all the bikes around your location

List of all rental offers

Settings button

Menu button

Menu bar

Panel for navigation in application

Browse bikes
list of offers (home page)

Payment methods

work with bank cards

My Garage
bike and user settings

Application UI/UX

Made with Android layouts XML files.
Each screen represents an XML layout with set of components

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
    tools:openDrawer="start">

    <include
        layout="@layout/app_bar_main"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

    <android.support.design.widget.NavigationView
        android:id="@+id/nav_view"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        android:fitsSystemWindows="true"
        android:theme="@style/AppTheme"
        app:headerLayout="@layout/nav_header_main"
        app:menu="@menu/activity_main_drawer" />

</android.support.v4.widget.DrawerLayout>

Application Logic

All the application logic made with Java and native Android libraries

public class WelcomeActivity extends AppCompatActivity implements SurfaceHolder.Callback {

    private MediaPlayer mp = null;
    SurfaceView mSurfaceView = null;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_welcome);

        mp = new MediaPlayer();
        mSurfaceView = (SurfaceView) findViewById(R.id.surface1);
        mSurfaceView.getHolder().addCallback(this);
    }

    @Override
    public void surfaceCreated(SurfaceHolder holder) {
        Uri video = Uri.parse("android.resource://" + getPackageName() + "/"
                + R.raw.welcome_page);


        try {
            mp.setDataSource(this, video);
            mp.prepare();
        } catch (IOException e) {
            e.printStackTrace();
        }

        //Get the dimensions of the video
        int videoWidth = mp.getVideoWidth();
        int videoHeight = mp.getVideoHeight() + 50;

        //Get the width of the screen
        int screenWidth = getWindowManager().getDefaultDisplay().getWidth();

        //Get the SurfaceView layout parameters
        android.view.ViewGroup.LayoutParams lp = mSurfaceView.getLayoutParams();

        //Set the width of the SurfaceView to the width of the screen
        lp.width = screenWidth;

        //Set the height of the SurfaceView to match the aspect ratio of the video
        //be sure to cast these as floats otherwise the calculation will likely be 0
        lp.height = (int) (((float) videoHeight / (float) videoWidth) * (float) screenWidth);

        //Commit the layout parameters
        mSurfaceView.setLayoutParams(lp);


        //Set video looping
        mp.setLooping(true);

        //Start video
        mp.setDisplay(holder);
        mp.start();
        Log.d("surfaceCreated", "surfaceMGT");
    }

    @Override
    public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
        Log.d("surfaceChanged", "surfaceMGT");

    }

    @Override
    public void surfaceDestroyed(SurfaceHolder holder) {
        Log.d("surfaceDestroyed", "surfaceMGT");
    }

    public void logInButtonClick(View view) {
        Intent i = new Intent(WelcomeActivity.this, LoginActivity.class);
        startActivity(i);
    }

    public void signUpButtonClick(View view) {
        Intent i = new Intent(WelcomeActivity.this, SignUpActivity.class);
        startActivity(i);
    }
}

Application Data (API)

Application will use set of REST API services written with a Spring Boot, that will make API development easy to use.

package hello;

import org.springframework.boot.*;
import org.springframework.boot.autoconfigure.*;
import org.springframework.stereotype.*;
import org.springframework.web.bind.annotation.*;

@Controller
@EnableAutoConfiguration
public class SampleController {

    @RequestMapping("/")
    @ResponseBody
    String home() {
        return "Hello World!";
    }

    public static void main(String[] args) throws Exception {
        SpringApplication.run(SampleController.class, args);
    }
}

Application Data (DB)

REST API will communicate with a set of highly-available PostgerSQL databases that will store all the data. 

end