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New Contributor
Posts: 3
Registered: ‎12-25-2012
My Device: BB10 + Playbook
My Carrier: 6508236685

BB10 Dev Alpha orientation

My Qt5 App is designed to launch and remain locked in landscape orientation. The manifest contains,






When I debug from Creator2.6.2, it works correctly, and ignores the actual orientation of the device.

When I launch from the device it always opens in portrait, anchored top left.


Is the manifest the boss, or could something else be overriding the operation? If so, what?




Posts: 217
Registered: ‎09-18-2009
My Device: Z10
My Carrier: O2

Re: BB10 Dev Alpha orientation

Yes, in QML you can set the supported display orientation.

NavigationPane {
    onCreationCompleted: {
        OrientationSupport.supportedDisplayOrientation = SupportedDisplayOrientation.DisplayLandscape;


New Contributor
Posts: 3
Registered: ‎12-25-2012
My Device: BB10 + Playbook
My Carrier: 6508236685

Re: BB10 Dev Alpha orientation

Are you saying that this QML (or the equivalent C++) overrides statements in the manifest.


To recap, my question asks why my device orientation changes even though I fixed landscape in the manifest.


BlackBerry Development Advisor
Posts: 683
Registered: ‎11-29-2011
My Device: PRIV
My Carrier: Rogers

Re: BB10 Dev Alpha orientation

those bar-descriptor lines work fine in my apps, but I am building C and Cascades apps w/ Momentics. 

Might be a qt-creator issue?  (eg. it may be forcefully overriding the orientation at startup)