Added github action to build APK

.github/workflows/ci.yml

@@ -0,0 +1,39 @@
+name: Android CI
+
+on: ["push", "pull_request"]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v1
+    - name: Install Elixir
+      run: |
+        wget https://packages.erlang-solutions.com/erlang-solutions_2.0_all.deb && sudo dpkg -i erlang-solutions_2.0_all.deb
+        sudo apt-get update
+        sudo apt-get install esl-erlang inotify-tools
+        mkdir $HOME/elixir && cd $HOME/elixir
+        wget https://github.com/elixir-lang/elixir/releases/download/v1.11.4/Precompiled.zip
+        unzip Precompiled.zip
+        echo "$HOME/elixir/bin" >> $GITHUB_PATH
+
+    - name: Set up hex & rebar
+      run: |
+        mix local.hex --force
+        mix local.rebar --force
+
+    - name: Set up JDK 11
+      uses: actions/setup-java@v1
+      with:
+        java-version: 11
+  
+    - name: Build with Gradle
+      run: bash ./gradlew assembleDebug --stacktrace
+
+    - name: Upload APK
+      uses: actions/upload-artifact@v1
+      with:
+        name: app
+        path: app/build/outputs/apk/debug/app-debug.apk

run_mix

@@ -13,10 +13,10 @@ else
 fi
 
 if [ ! -d "assets/node_modules" ]; then
-  cd assets && npm i
+  cd assets && npm i && cd ..
 fi
 
-mix assetsp.deploy && \
+mix assets.deploy && \
   mix release --overwrite && \
   cd _build/android_prod/rel/todo_app && \
   zip -0r $BASE/src/main/assets/app.zip lib/ releases/ --exclude "*.so" && \