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The TechSales Android application follows the standard Android project structure with Gradle Kotlin DSL build configuration.

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Root Directory Structure

The project is organized as follows: 
TechSales/
├── app/                        # Main application module
│   ├── src/                    # Source files
│   ├── build.gradle.kts        # App-level build configuration
│   └── proguard-rules.pro      # ProGuard obfuscation rules
├── gradle/                     # Gradle wrapper files
│   └── wrapper/
├── build.gradle.kts            # Project-level build configuration
├── settings.gradle.kts         # Project settings
├── gradle.properties           # Gradle properties
├── gradlew                     # Gradle wrapper script (Unix)
└── gradlew.bat                 # Gradle wrapper script (Windows)

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App Module Structure

The app/ directory contains the main application code: 
app/
├── src/
│   ├── main/
│   │   ├── java/com/teamtech/techsales/
│   │   │   └── MainActivity.java
│   │   ├── res/
│   │   │   ├── drawable/           # Images and drawables
│   │   │   ├── layout/             # XML layouts
│   │   │   ├── mipmap-*/           # App icons (various densities)
│   │   │   ├── values/             # Strings, colors, themes
│   │   │   ├── values-night/       # Dark theme resources
│   │   │   └── xml/                # XML configuration files
│   │   └── AndroidManifest.xml
│   ├── androidTest/
│   │   └── java/com/teamtech/techsales/
│   │       └── ExampleInstrumentedTest.java
│   └── test/
│       └── java/com/teamtech/techsales/
│           └── ExampleUnitTest.java
├── build.gradle.kts
└── proguard-rules.pro

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Key Directories

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Source Code (app/src/main/java)

The main application source code is located in the Java package structure: 
app/src/main/java/com/teamtech/techsales/
Package name: com.teamtech.techsales This directory contains all Java source files for the application, including:
  • MainActivity.java - The main entry point activity

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Resources (app/src/main/res)

Android resources are organized by type:
  • drawable/ - Vector graphics, images, and drawable resources
  • layout/ - XML layout files defining UI screens
  • mipmap-*/ - Launcher icons at different densities (hdpi, mdpi, xhdpi, xxhdpi, xxxhdpi, anydpi)
  • values/ - String resources, colors, dimensions, styles
  • values-night/ - Dark theme overrides
  • xml/ - XML configuration files (backup rules, data extraction rules)

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AndroidManifest.xml

Location: app/src/main/AndroidManifest.xml The manifest file defines essential application information: 
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools">

    <application
        android:allowBackup="true"
        android:dataExtractionRules="@xml/data_extraction_rules"
        android:fullBackupContent="@xml/backup_rules"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/Theme.TechSales">
        <activity
            android:name=".MainActivity"
            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

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Test Directories

TechSales maintains separate directories for unit tests and instrumented tests.
Unit Tests: app/src/test/java/com/teamtech/techsales/
  • Contains JUnit tests that run on the JVM
  • Example: ExampleUnitTest.java
Instrumented Tests: app/src/androidTest/java/com/teamtech/techsales/
  • Contains tests that run on Android devices or emulators
  • Example: ExampleInstrumentedTest.java

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Package Structure

The application uses the reverse domain name convention: 
com.teamtech.techsales
  • com.teamtech - Organization identifier
  • techsales - Application name
This package name is defined in:
  • app/build.gradle.kts as namespace and applicationId
  • AndroidManifest.xml (implicitly through the namespace)
  • All Java source files as the package declaration

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Build Configuration Files

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Project-level build.gradle.kts

Location: build.gradle.kts Configures plugins and settings for all modules: 
plugins {
    alias(libs.plugins.android.application) apply false
}

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App-level build.gradle.kts

Location: app/build.gradle.kts Defines app-specific build configuration, dependencies, and compile options. See the Building page for details.

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Gradle Properties

Location: gradle.properties Contains Gradle configuration settings and project-wide properties.

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Next Steps

Building

Learn how to build the TechSales app

Running

Run the app on devices and emulators

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