Project setup

npm install

Preview in android, works fine

ionic cordova run android -l

Build

adb uninstall io.ionic.starter

ionic cordova build android --prod --release

jarsigner -verbose -sigalg SHA1withRSA -digestalg SHA1 -keystore myApp.keystore platforms/android/app/build/outputs/apk/release/app-release-unsigned.apk myApp

Password for jarsigner: dadada

adb install platforms/android/app/build/outputs/apk/release/app-release-unsigned.apk