Create Your Own AVD On The Cloud

In this code lab, you will learn how to create a new AVD target and change its boot animation.

The whole code lab should take around 40 minutes

Android build anatomy

Android Build Layers

Create your own AVD

Create your company & device folders: ${ANDROID_BUILD_TOP}/asd/aphone

echo "Set to the android source code folder"
export ANDROID_BUILD_TOP="/ws/android"
mkdir -p ${ANDROID_BUILD_TOP}/asd/aphone

Create AndroidProducts.mk file for Android Build System to know your build target.
Create aphone.mk to configure your build target.

Create aphone_product.mk for the product specific build configuration.

echo "Copy make files & scripts from codelab3"
cp -r /ws/asd-codelabs/codelab3/res/asd ${ANDROID_BUILD_TOP}/device/asd

Use asd.sh, development utility scripts to make the setup, build & run workflow easier.
```
cd ${ANDROID_BUILD_TOP}
echo "Setup" && lunchAPhone
echo "Build" && asd.sh buildAPhone
echo "Run" && emulator &
```
- Building aphone first time can take more than 8 min., but it’s better than hours because it’s pretty close to sdk_phone_x86_64 to reuse many same object files.
Check the build fingerprint & Settings -> About emulated device for aphone, and by adb. ``` adb shell getprop | grep finger

echo “To get more info” && asd.sh avdInfo

<img src="res/aphone-about.png" width="300">

## Change the boot animation
Most device makers will add their own boot animation for their brands. You can
make your own too as:

1. Understand how [Android bootanimation](https://android.googlesource.com/platform/frameworks/base/+/master/cmds/bootanimation/FORMAT.md)
is built.

2. Add aphone specific bootanimation.zip, e.g.

mkdir -p ${ANDROID_BUILD_TOP}/device/asd/aphone/bootanimations echo “Copy ATV boot animzation for example” cp ${ANDROID_BUILD_TOP}/device/google/atv/products/bootanimations/bootanimation.zip
${ANDROID_BUILD_TOP}/device/asd/aphone/bootanimations/bootanimation-atv.zip

3. Add it to the makefile, $ANDROID_BUILD_TOP/device/asd/aphone/aphone.mk, e.g.

    Press **i** to enter insert mode, **esc** to exit insert mode, type in :wq then **enter** to save. For more detail, check out the the Refrence section

Boot animation

PRODUCT_COPY_FILES +=
device/asd/aphone/bootanimations/bootanimation-atv.zip:$(TARGET_COPY_OUT_PRODUCT)/media/bootanimation.zip

4. Build & Run the AVD to check the new ATV animation.
<img src="res/bootanimation-atv.gif" width="300">

## Preload an app
Device makers typically add preload apps to extend the core user experience for
their devices. This example shows you how to add a prebuilt app to aphone.
1. Download a sample app APK from [Jetpack Compose Samples](https://github.com/android/compose-samples#jetpack-compose-samples)
to ~/Downloads, e.g. [jetsnack-debug.apk](https://github.com/android/compose-samples/releases/tag/v1.0.0-beta07).

2. Copy the APK to aphone folder.

mkdir ${ANDROID_BUILD_TOP}/device/asd/apps cp ${HOME}/Downloads/jetsnack-debug.apk ${ANDROID_BUILD_TOP}/device/asd/apps

3. Create an Android.mk make file for the app in ${ANDROID_BUILD_TOP}/device/asd/apps.

#Prebuilt apps for ASD

LOCAL_PATH := $(my-dir)

include $(CLEAR_VARS)

LOCAL_MODULE := jetsnack LOCAL_MODULE_CLASS := APPS LOCAL_MODULE_TAGS := optional LOCAL_CERTIFICATE := PRESIGNED LOCAL_PRODUCT_MODULE := true LOCAL_SRC_FILES := jetsnack-debug.apk

include $(BUILD_PREBUILT)

4. Add the app into aphone, aphone_product.mk in ${ANDROID_BUILD_TOP}/device/asd/aphone.

ASD aphone apps

PRODUCT_PACKAGES +=
jetsnack ```

Build & run to check out Jetsnack app is preloaded.

Extra credits

How will you change the AVD to use another boot animation? e.g. Android Automotive one.
How will you preload more apps or even your own apps?
What are the Android device storage partitions?
What are the Android images?
How to build for Smarter Cars too: Android Virtual Device as a Development Platform

Refrence

Vim cheet sheet