Project structure (app, gradle, manifests) in Android Kotlin - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to specify the Android app module directory name in the project.

Android Kotlin

rootProject.name = "MyApplication"
include(":[1]")

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Aapp

Bbuild

Cgradle

Dmanifest

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'build' or 'gradle' which are build system folders, not modules.

Confusing 'manifest' with module name.

The main Android app module is usually named app. This is where your app code and resources live.

2fill in blank

medium

Complete the Gradle build script line to apply the Android application plugin.

Android Kotlin

plugins {
    id("[1]")
}

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Aapplication

Bjava-library

Ccom.android.application

Dkotlin

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'application' which is for plain Java/Kotlin apps, not Android.

Using 'java-library' which is for Java libraries.

The plugin com.android.application is used to build Android apps.

3fill in blank

hard

Fix the error in the AndroidManifest.xml root tag to declare the correct XML namespace.

Android Kotlin

<manifest xmlns:android="[1]"
    package="com.example.app">
</manifest>

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Ahttp://www.w3.org/2000/xmlns/

Bhttp://schemas.android.com/apk/res/android

Chttp://schemas.android.com/tools

Dhttp://schemas.android.com/apk/res-auto

Attempts:

3 left

💡 Hint

Common Mistakes

Using the tools namespace URL instead of the Android namespace.

Using XML namespace URLs unrelated to Android.

The AndroidManifest.xml must declare the xmlns:android namespace as http://schemas.android.com/apk/res/android.

4fill in blank

hard

Fill both blanks to declare the minimum SDK version and target SDK version in build.gradle.kts.

Android Kotlin

android {
    defaultConfig {
        minSdk = [1]
        targetSdk = [2]
    }
}

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A21

B30

CcompileSdkVersion

DandroidVersion

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing compileSdkVersion with minSdkVersion or targetSdkVersion.

Using invalid values or variable names.

The minSdk sets the minimum Android version supported, and targetSdk sets the version the app targets.

5fill in blank

hard

Fill all three blanks to define the application ID, version code, and version name in build.gradle.kts.

Android Kotlin

android {
    defaultConfig {
        applicationId = "[1]"
        versionCode = [2]
        versionName = "[3]"
    }
}

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Acom.example.myapp

B1

C1.0

Dcom.example.app

Attempts:

3 left

💡 Hint

Common Mistakes

Using invalid application IDs or missing quotes.

Using non-integer version codes.

Confusing versionCode and versionName formats.

The applicationId uniquely identifies your app. versionCode is an integer for updates, and versionName is a user-friendly version string.