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android – bluetooth keyboard will cause activity destroy and recreate

Posted by: admin May 14, 2020 Leave a comment

Questions:

Bluetooth keyboard will cause activity destroy and recreate
if I turn off it or far away from pad(Android)
Activity will be recreate
how can i avoid this problem

How to&Answers:

Pairing a Bluetooth keyboard is considered to be a configuration change:
Try adding the below to your AndroidManifest.xml

android:configChanges=”keyboard|keyboardHidden”

From:
http://developer.android.com/guide/topics/manifest/activity-element.html#config
android:configChanges

Answer:

In contrast to the accepted answer, I found that keyboard|keyboardHidden was not enough. I was working with a Logitech Bluetooth keyboard (model #JNZYR0021).

What did work was this:

<activity
  ...
  android:configChanges="orientation|screenSize|keyboard|keyboardHidden|navigation"
/>

Apparently this Logitech keyboard also changes navigation, which is weird because the Android docs say:

The navigation type (trackball/dpad) has changed. (This should never normally happen.)

Go figure.