Handle states of orientation changes

Question

How can I handle all states of orientation event occurs?

Something like:

• before starting (save some screen states)
• when happening (animation

Answer 1

You may be a little confused.

This is from the api docs:

public void onConfigurationChanged (Configuration newConfig) Called by the system when the device configuration changes while your activity is running. Note that this will only be called if you have selected configurations you would like to handle with the configChanges attribute in your manifest.

If you've specified the parameter in your AndroidManifest, the system will notify you of orientation change by calling onConfigurationChanged(). If you did not set the flag, then Android will kill your activity start a new one with a proper orientation and then call onResume().

If you want to be notified when activity finished orientation changed and is all laid out, I would recommend overriding an onDraw() method in one of your child views. By then everything is done and you could for instance restore the state from before the orientation change.

HTH.