Shows the content that is specified in the children field of the widget in a separate view. If the screen height or width of some devices is less than 500px, the view is displayed as an overlay that pops up from bottom without an arrow. Otherwise, the view might display with an arrow pointing to the widget specified by the aroundWidget as a tooltip.
nonModalOpener DojoMobileOpener{isModal = false};
_nonmodalOpener.showOpener( null, null ); //successed
_modalOpener DojoMobileOpener{isModal = true};
_modalOpener.showOpener( null, null ); // may fail
* DojoMobileLib.OPENER_POP_BEFORE: places drop down before the aroundWidget
* DojoMobileLib.OPENER_POP_AFTER: places drop down after the aroundWidget
* DojoMobileLib.OPENER_POP_ABOVE: drop down goes above aroundWidget
* DojoMobileLib.OPENER_POP_BELOW: drop down goes below aroundWidget