Target SDK level 29

[daniele-athome]

As of Google Play policy: https://support.google.com/googleplay/android-developer/answer/113469#targetsdk

Behavior changes for API 28: https://developer.android.com/about/versions/pie/android-9.0-changes-28 Behavior changes for API 29: https://developer.android.com/about/versions/10/behavior-changes-10

• [x] FOREGROUND_SERVICE permission
• [x] Starting in Android 9, Crypto JCA provider has been removed. Calls to SecureRandom.getInstance("SHA1PRNG", "Crypto") will throw NoSuchProviderException.
• [x] access to DNS server properties (for Smack) forum thread possible fix: use this class for API level 21+
• [x] privacy changes related to external file storage (should be ok, but needs testing)
• [x] android.preference is deprecated
• [x] verify that ANDROID_ID setting (for use as the JID resource part) is still working
• [x] MaterialDialogs accesses some internals which might be forbidden/non-existant

Not related to targeting, but affects the app anyway:

• [x] https://android-developers.googleblog.com/2018/03/cryptography-changes-in-android-p.html (using Bouncy Castle)

  E/System: **** DEPRECATED FUNCTIONALITY **** E/System: * The implementation of the Signature.SHA256WITHRSA algorithm from

  • the BC provider is deprecated in this version of Android.

[daniele-athome]

Finally closed in 40096a6e30b13ce853010eb34d9a75614c06f4ed.