Concept Notes – Android Studio Setup + Layouts

🔹 Android Studio Setup

• Android Studio is the official IDE for Android app development.
• Requires Java JDK and SDK tools.
• Setup process:
  1. Download & Install Android Studio.
  2. Configure SDK Manager and required Android API levels.
  3. Create a new project → Choose Empty Activity.
  4. Write code in Java/Kotlin and use XML for layouts.

🔹 Layouts in Android

Layouts define UI structure of the app.

• LinearLayout – Arranges elements in vertical/horizontal order.
• RelativeLayout – Places elements relative to each other.
• ConstraintLayout – Advanced, flexible layout (recommended).
• FrameLayout – Used for single view or fragments.
• TableLayout – Organizes views in rows & columns.

⚙️ Key Formulas / Syntax

<!-- Example: LinearLayout -->
<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello ECET!" />

</LinearLayout>

<!-- Example: LinearLayout -->
<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello ECET!" />

</LinearLayout>

🔟 10 Expected MCQs – ECET 2026 (Android)

Q1. Official IDE for Android Development?
A) Eclipse
B) Android Studio
C) NetBeans
D) IntelliJ IDEA

Q2. Which language is NOT used for Android app development?
A) Kotlin
B) Java
C) Python
D) XML

Q3. Which layout arranges elements in vertical or horizontal order?
A) LinearLayout
B) FrameLayout
C) TableLayout
D) RelativeLayout

Q4. ConstraintLayout is preferred because:
A) Uses less XML code
B) Provides flexible positioning
C) Supports advanced UI design
D) All of the above

Q5. Android Studio is developed based on:
A) IntelliJ IDEA
B) Eclipse
C) NetBeans
D) Visual Studio

Q6. Which file stores Android app UI design?
A) MainActivity.java
B) activity_main.xml
C) AndroidManifest.xml
D) Gradle.build

Q7. FrameLayout is mostly used for:
A) Multiple views side by side
B) Hosting single view/fragments
C) Complex UIs
D) Grid system

Q8. To create a new Android project, we use:
A) SDK Manager
B) File → New Project
C) Tools → Emulator
D) Gradle Console

Q9. Which layout works like a grid with rows & columns?
A) LinearLayout
B) TableLayout
C) FrameLayout
D) ConstraintLayout

Q10. Android XML defines:
A) UI Design
B) Java Logic
C) App Security
D) APK Signing

✅ Answer Key

Q1 → B
Q2 → C
Q3 → A
Q4 → D
Q5 → A
Q6 → B
Q7 → B
Q8 → B
Q9 → B
Q10 → A

🧠 Explanations

• Q1 → Android Studio is the official IDE.
• Q2 → Python is not used directly in Android development.
• Q3 → LinearLayout arranges vertically/horizontally.
• Q4 → ConstraintLayout is flexible & reduces nesting.
• Q5 → Android Studio is based on IntelliJ IDEA.
• Q6 → UI is stored in XML (e.g., activity_main.xml).
• Q7 → FrameLayout hosts fragments/single view.
• Q8 → File → New Project creates projects.
• Q9 → TableLayout = Rows + Columns.
• Q10 → XML defines UI design in Android.

🎯 Motivation – Why Practice Matters

Android questions are repeated in ECET every year.
Setup + Layouts are direct theory & MCQ-based, so easy scoring.
By mastering Layouts, students can also create mini-projects & apps for practical knowledge.

📲 CTA

👉 Join our ECET Prep Community for Android notes & daily practice: @LearnNewThingsHub