Build android app on termux

build_android_app_on_termux.md

Build android app on termux

1. install termux

install termux from F-Droid.

2. setup termux

apt update
apt upgrade
# source.list changed
apt update
termux-setup-storage

3. install ubuntu

apt install git wget proot
git clone https://github.com/MFDGaming/ubuntu-in-termux.git
cd ubuntu-in-termux
# install ubuntu
bash ubuntu.sh -y
# fix PATH order
sed -Ei 's|(:/bin)(:/usr/bin):|\2\1:|' startubuntu.sh
# start
./startubuntu.sh

4. install packages for build

Now, in ubuntu.

apt update
apt upgrade
apt install default-jdk-headless openjdk-8-jdk-headless unzip aapt2

5. install android cmdline-tools and platforms

Download Android Command Line Tools for Linux from https://developer.android.com/studio

cd ~
unzip /sdcard/Download/commandlinetools-linux-9477386_latest.zip
export ANDROID_HOME=$HOME/android/sdk
mkdir -p $ANDROID_HOME/cmdline-tools
mv cmdline-tools $ANDROID_HOME/cmdline-tools/latest
export PATH=$PATH:$ANDROID_HOME/cmdline-tools/latest/bin
# just for fix broken dependencies
JAVA_OPTS=-Dos.arch=amd64 sdkmanager emulator
# install target platforms
sdkmanager 'platforms;android-26'

5. replace aapt2

cd project-dir
echo "sdk.dir=$ANDROID_HOME" > local.properties
alias gradlew='JAVA_HOME=/usr/lib/jvm/java-8-openjdk-arm64 bash ./gradlew'
# first build should fail. it is for downloading aapt2-*-linux.jar
gradlew
# replace aapt2 binary for arm64
find ~/.gradle -name 'aapt2-*-linux.jar' -type f | xargs -I{} jar -u -f {} -C /usr/bin aapt2

6. build apk!

cd project-dir
gradlew

Getting error with this "apt install default-jdk-headless openjdk-8-jdk-headless unzip aapt2"

Apt2 don't exist something

Getting error with this "apt install default-jdk-headless openjdk-8-jdk-headless unzip aapt2"

Apt2 don't exist something

Same problem.

When I tried to follow with the instructions regardless, gradlew silently failed, claiming that the build completed successfully.

I get error: "/android-sdk/bin/java not found" when I run "gradlew", but the file is in /android-sdk/bin. I try chmod a+rwx, but it still doesn't work.

If you want to create apps on Android, you can use this
https://github.com/itsaky/AndroidIDE
It's not an advertisement, I just want to help people, who doesn't have 64 bit system. Because i see, that some people couldn't create app with method in the top of the thread(of the page)

No such file or directory

If you want to create apps on Android, you can use this https://github.com/itsaky/AndroidIDE It's not an advertisement, I just want to help people, who doesn't have 64 bit system. Because i see, that some people couldn't create app with method in the top of the thread(of the page)

Oh good but it requires a phone with substantial ram

If you want to create apps on Android, you can use this https://github.com/itsaky/AndroidIDE It's not an advertisement, I just want to help people, who doesn't have 64 bit system. Because i see, that some people couldn't create app with method in the top of the thread(of the page)

Oh good but it requires a phone with substantial ram

In that case you can use CodeAssist, either the official one or the unofficial Deenu's CodeAssist. (This one recommended)