npm caching and exclude APP folder (#127)

* npm caching and exclude APP folder

* fix APP to App

* Ignore paths on pull_request

.github/workflows/android.yml

@@ -12,12 +12,20 @@ env:
  ANDROID_HOME: ~/android-sdk-linux
  ANDROID_APK_FILE: 'android/app/build/outputs/apk/release/app-release.apk'
 
-on: 
+on:
+ pull_request:
+ branches:
+ - master
+ paths-ignore: 
+ - '.github/**'
+ - '**.md'
+ - 'LICENSE'
  push:
  paths-ignore: 
  - '.github/**'
  - '**.md'
  - 'LICENSE'
+ - 'App/**'
 
 jobs:
  build:
@@ -30,15 +38,18 @@ jobs:
  with:
  java-version: '8'
  java-package: jdk
+
  - name: Install Android SDK
- run: |
- sh ci/install-android-sdk.sh
+ run: sh ci/install-android-sdk.sh
+
+ - uses: bahmutov/npm-install@v1
+
  - name: Install npm dependencies
- run: |
-  npm ci
+ run: npm ci
+
  - name: Build APK
- run: |
-  npm run android:build-apk
+ run: npm run android:build-apk
+
  - name: Archive APK
  uses: actions/upload-artifact@v1
  with: