Android SDK & AVD Setup Guide

This guide will help you download, configure, and manage Android SDKs, AVDs (Android Virtual Devices), and emulator settings. Follow the steps below to set up everything on your system.

---

1. Download SDK and Set Environment Variables

Step 1: Download and Unzip the Android SDK

How to Download the SDK:

1. Go to the Official Android Developer Site:

   • Visit the Android SDK Download Page.

2. Download Command Line Tools (CLI):

   • Under "Command line tools only," select the appropriate version for your operating system (Windows, macOS, or Linux).

3. Extract the ZIP File:

   • Windows: Right-click the downloaded .zip file and choose "Extract All" to a preferred directory (e.g., C:\AndroidSDK).
   • macOS: Double-click the .zip file, and it will be extracted to a folder.

   Important: Make a note of the extracted directory path (e.g., C:\AndroidSDK or ~/Android/sdk).

Install Required SDK Components:

After unzipping the SDK:

1. Open a Command Prompt (Windows) or Terminal (macOS).

2. Navigate to the directory where you extracted the SDK.

   Example for Windows:

   cd C:\AndroidSDK\cmdline-tools\bin

   Example for macOS:

   cd ~/Android/sdk/cmdline-tools/bin

3. Run the following command to accept licenses and download the latest platform tools:

   sdkmanager "platform-tools" "platforms;android-34"

---

Step 2: Set the SDK Path as a System Variable

For Windows:

1. Open "Control Panel" and go to "System" > "Advanced System Settings."
2. Click on "Environment Variables."
3. Under "System Variables," click "New."
   • Variable Name: ANDROID_HOME
   • Variable Value: Path to your extracted SDK folder (e.g., C:\AndroidSDK).
4. Edit the Path variable (under "System Variables") and add the following:
   • C:\AndroidSDK\platform-tools

For macOS:

1. Open the .bash_profile or .zshrc file in your home directory:

   nano ~/.zshrc

2. Add the following lines:

   export ANDROID_HOME=~/Android/sdk
   export PATH=$PATH:$ANDROID_HOME/platform-tools

3. Save the file and apply changes:

   source ~/.zshrc

Step 3: Set the ANDROID_HOME Variable

• Ensure ANDROID_HOME is correctly set to your extracted SDK directory.

Why this is important: Setting these paths allows your system to recognize and use the Android SDK.

---

2. Install Build Tools and Platform for Android 34

Run these commands in your terminal or command prompt:

sdkmanager "build-tools;34.0.0"
sdkmanager "platforms;android-34"

These commands install the necessary tools and platform for Android 34.

Step 3: Add Platform Tools to PATH

Make sure your platform-tools directory is included in your system's PATH variable.

Example: On Windows, it will be under the SDK folder: C:\Users\YourUsername\AppData\Local\Android\Sdk\platform-tools.

---

3. Install System Images and Create an AVD

Install System Images

Run the following command to download the system image for Android 34:

sdkmanager "system-images;android-34;google_apis;x86_64"

Create a New AVD (Android Virtual Device)

avdmanager create avd --name "MyAVD" --package "system-images;android-34;google_apis;x86_64"

• Replace MyAVD with a name you choose for your emulator.
• This creates an emulator with Google APIs for Android 34.

---

4. List and Run Emulators

List Available Emulators

To see all available AVDs on your system:

emulator -list-avds

Run an Emulator

emulator -avd MyAVD -netdelay none -netspeed full -gpu on -memory 4096 -cores 4 -no-snapshot-load -feature KeyboardSupport

• -gpu on: Enables GPU acceleration.
• -memory 4096: Allocates 4GB of memory to the emulator.
• -cores 4: Uses 4 CPU cores for the emulator.
• -feature KeyboardSupport: Enables physical keyboard support.

---

5. Force Kill an Emulator

If an emulator freezes or needs to be stopped:

adb -s emulator-5554 emu kill

• Replace emulator-5554 with your emulator’s ID (found in the list from the previous step).

---

6. Update SDK and AVD

Update All SDK Components

sdkmanager --update

Update the Emulator

sdkmanager "emulator"

---

7. Start and Stop the ADB Server

Sometimes you may need to restart the ADB server:

Kill the ADB Server

adb kill-server

Start the ADB Server

adb start-server

---

8. Pull and Push Files to/from AVD

Pull Files from AVD

To copy files from the AVD to your local system:

Example 1: Pull files to C:\AVDFiles:

adb pull /sdcard/Download/ C:\AVDFiles

Example 2: Pull files to D:\avd\Avdx:

adb pull /sdcard/Download/ D:\avd\Avdx

Push Files to AVD

To send files from your computer to the AVD:

Example 1: Push a file to the AVD’s Download folder:

adb push C:\AVDFiles\myfile.txt /sdcard/Download/

Example 2: Push an image:

adb push C:\Users\Moham\Downloads\Bg.JPG /sdcard/Download/

Create a Directory for Downloaded Files

To create a new directory inside the AVD:

adb shell mkdir /sdcard/Download

---

9. Uninstall SDK Components

Uninstall Individual Components

To remove specific SDK components:

sdkmanager --uninstall "build-tools;34.0.0"
sdkmanager --uninstall "platforms;android-34"
sdkmanager --uninstall "system-images;android-34;google_play;x86_64"

Uninstall Multiple Components at Once

sdkmanager --uninstall "build-tools;34.0.0" "platforms;android-34" "system-images;android-34;google_play;x86_64"

---

10. Final Thoughts

Congratulations on setting up your Android development environment! With everything installed and configured, you’re ready to build and run your Android projects.

Remember, I believe in you—you’ve got this! 😊