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Question

Lock orientation AIR 2.7 Android

Forum|Forum|14 years ago
July 6, 2011
3 replies
2275 views

Hi,

I working on an app where I want to respond to the device rotation changes but I want the stage to remain in the statting landscape mode.

I listen to StageOrientationEvent.ORIENTATION_CHANGING on the stage and preventDefault once I updated the app. This behavior woks when I test on the desktop. But on the devices (gTab and Atrix) the stage still re-orients.

autoOrient is set to true in the xml. aspectRation is set to landscape. Setting autoArient to false means the StageOrientationEvent never fires.

What am I missing?!

private function onStageOrientationChanging( e:StageOrientationEvent 😞void

{

// do my stuff & kill event

e.preventDefault();

}

Development

This topic has been closed for replies.

J

jerome2Author

Participating Frequently

For those interested here's the final project: http://www.countthedots.com/

Next up packaging for BB Playbook

Cheers,

J.

B

boat5

Inspiring

Jerome, can you tell me how you got Adobe Air running on the gTab and if its stable? (viewsonic gtab right?) I have read of the 'market fix' but also read of issues with Air on gTab.

Is there a specific rom i should put on it? My father owns one and would like me to install Air and all its glory!

thanks

J

jerome2Author

Participating Frequently

Hi Boat5,

I meant the Samsung Galaxy Tab not the Viewsonic gTab

Cheers,

J.

relaxatraja

Inspiring

Try this:

import flash.display.StageOrientation;

stage.scaleMode = StageScaleMode.NO_SCALE;

stage.align = StageAlign.TOP_LEFT;

var startOrientation:String = stage.orientation;

if (startOrientation == "default"){

stage.setOrientation(StageOrientation.ROTATED_RIGHT);

}

if (startOrientation == "upsideDown"){

stage.setOrientation(StageOrientation.ROTATED_LEFT);

}

stage.addEventListener(StageOrientationEvent.ORIENTATION_CHANGING, orientationChangeListener);

function orientationChangeListener(e:StageOrientationEvent){

if (e.afterOrientation == "default" || e.afterOrientation == "upsideDown"){

e.preventDefault();

}

}

J

jerome2Author

Participating Frequently

Hi Relaxatraja,

In theory this should work, but I have found the root of the issue: "ORIENTATION_CHANGING events are not dispatched on Android devices."

Since ORIENTATION_CHANGE is not cancelable this means you can't prevent the default behavior on Android. The device will auto-orient unless you disable it in the XML... FML.

Unless someone has a work around, I will post a bug report or feature request

Cheers,

J.

J

jerome2Author

Participating Frequently

I figured out a workaround:

1- set autoOrient to false in the xml

2- in an accelerometer event or ENTER_FRAME event check the stage.deviceOrientation. This returns the state of the device exactly as stage.orientation would if you had autoOrient to true in the XML.

It's a hack, but it works. The stage doesn't re-orient and I get the device orientation to update the elements in my app

Cheers,

J.

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