I've exported an .apk file from Flash CS5.5 to my android tablet (nexus 7) and despite my file being 1280X800 I get unwanted white bands either side of my app in landscape mode. What can I do?
Verify the size of the stage by USB debug testing it on the device and tracing the stages dimensions:
trace('width:' + stage.stageWidth + ' height:' + stage.stageHeight);
If that reports the correct resolution make sure you're not scaling content. In frame 1 you should specify:
stage.align = StageAlign.TOP_LEFT;
stage.scaleMode = StageScaleMode.NO_SCALE;