Hi Ralf,
After writing to you i found the solution.
Added windows.parent before cordova to reach the launchpad level.
try {
window.parent.cordova.plugins.barcodeScanner.scan(
function(result){
var itm = new sap.m.ObjectListItem({
title : result.text,
number : result.format,
});
view.barcodeList.addItem(itm);
},
function(error){
alert(error);
}
);
} catch (err) {
alert('error: ' + err.message);
}