Reputation: 6406
When does 'touchscreen' and 'navigation' configuration changes trigger?
Reading through Android's documentation for android:configChanges, I find:
"touchscreen" The touchscreen has changed. (This should never normally happen.)
"navigation" The navigation type (trackball/dpad) has changed. (This should never normally happen.)
Umm.. OK. So what does 'normally' mean here? Does it mean it does happen at times? Could someone give an example as to when this would trigger?
Upvotes: 1
Views: 1290
Answers (2)
Reputation: 56
For navigation it will be triggered when you plug in certain wireless mouse/keyboard. Normally in Android, no one plugs a mouse in, which changes navigation from touch to mouse. Thus, it should not usually happen.
Upvotes: 0
Reputation: 18846
I'm sure @Rafael T is right. It all can be attached via USB. Or maybe in case of emergency it can be replaced "on a fly" by device repairer (with opened case and turned on device..) At least that's how I imagine
"(This should never normally happen.)"
Upvotes: 0
Related Questions
- Android How Lifecycle-Aware Components Detect Configuration Change inside ViewModel
- When do we need to override callback onConfigurationChanged()?
- Android - differentiating between configuration changes
- How to trigger certain config changes manually?
- Automatic UI configuration change handling in Activity and Fragment sometimes fails
- What Activity's lifecycle callbacks are executed when Android orientation is changed?
- Why life cycle activtity methods are not called when android:configChanges="orientation|screenSize" is in manifest file
- Why does config changes have to listen for orientation and screen size for orientation changes?
- What is the best way to know if the configuration changed?
- android - when exactly to react to configuration change