How to register a listener for orientation change?

Question

My android app will run at background and I need to be notify immediately when orientation change. eg. When user rotate the phone from portrait to landscape (or landscape to portrait), the system should be tell my app that the orientation has changed.

Thanks.

Rafiq · Accepted Answer · 2012-04-28 08:34:45Z

7

This method is called when screen rotated

@Override public void onConfigurationChanged(Configuration newConfig) { super.onConfigurationChanged(newConfig); //Do stuff here }

answered Apr 28, 2012 at 8:34

Rafiq

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4 Comments

Nguyen Minh Binh Over a year ago

Does this method will be call if my app hasn't been started? What I really need is that my app wake up (or start) when orientation change.

Rafiq Over a year ago

Read this and this

Nguyen Minh Binh Over a year ago

I have read these before I post the question. They said that "Called by the system when the device configuration changes while your activity is running." So, the method will not be call if my app isn't running. Is there any solution for me?

sospedra Over a year ago

@NguyenMinhBinh Do you solved it? I have the same problem now, thanks.

Arif Nadeem · Accepted Answer · 2012-04-28 08:44:08Z

You do not have to explicitly set the Orientation listener.

onConfigurationChanged will be called by the system.

@Override public void onConfigurationChanged(Configuration myConfig) { super.onConfigurationChanged(myConfig); int orient = getResources().getConfiguration().orientation; switch(orient) { case Configuration.ORIENTATION_LANDSCAPE: setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE); break; case Configuration.ORIENTATION_PORTRAIT: setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); break; default: setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED); } }

Volodymyr Boyko · Accepted Answer · 2015-03-06 20:21:27Z

0

But you can implement onConfigurationChanged in daemon. here : Service.

answered Mar 6, 2015 at 20:21

Volodymyr Boyko

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