Sample app using pushlink CUSTOM strategy to perform background updates

Background updates synonyms:

• Installing apk without user interaction
• Silent updates
• Zero-touch updates
• KIOSK apps
• POS - Point of Sale apps
• Dedicated devices
• COSU - Corporate Owned Single Use devices

Warning

• This only works in devices running Android 6 (Marshmallow, API 23) or higher
• This sample requires the app to be a device owner. Device owner is NOT device admin.
• There must be just one device owner and it can't be unset without factory reset.
• Setting a device owner requires an unprovisioned device. In other words: a device without accounts, like google account, etc.
• Bottom line: Use an emulator or a test-born device before releasing it to production

Steps

1. Clone and replace the string "yourApiKey" in the PushlinkSetup.java
2. Build a signed APK
3. Upload it to Pushlink web administration
4. adb install it into the device
5. Execute:

adb shell dpm set-device-owner com.pushlink.background/.PushlinkAdminReceiver

6. Make some visible change (like hello world NEW) and run it again
7. Wait and see the magic happen

Resources

https://developer.android.com/work/cosu

https://codelabs.developers.google.com/codelabs/cosu/index.html

https://developer.android.com/guide/topics/admin/device-admin

http://florent-dupont.blogspot.com/2015/01/android-shell-command-dpm-device-policy.html