Change back button (android) behaviour when Popup is active, ionic - angularjs

Question

I'm trying to achieve this:
Scenario 1
User press back.
Popup appears asking if the user want to exit *
User press back.
App exits*
and
Scenario 2
User press back.
Popup appears asking if the user want to exit *
User press cancel
Popup closes
User press back.
Popup appears asking if the user want to exit *
User press back
App exits.
I tried using registerBackButtonAction and onHardwareBackButtoncombination but I can not get the exit popup to shows the second time (second scenario), it just exit.
This is the code I have now:
var exitPopupControl = function(event) {
//if I press back again, just go out
$ionicPlatform.onHardwareBackButton(function(event2){
navigator.app.exitApp();
});
if($state.current.name === "app.startseite"){
$ionicPopup.confirm({
title: 'Exit',
template: 'Do you want to exit? <br /><small>Press Back again to exit.</small>'
}).then(function(res) {
if(res) {
navigator.app.exitApp();
$rootScope.exitPopupShowed = false;
} else {
console.log('I choose not to left the app');
$ionicPlatform.registerBackButtonAction(exitPopupControl, 100);
}
});
}
else {
window.history.back();
}
};
$ionicPlatform.registerBackButtonAction(exitPopupControl, 100);

Answer 1

i did handel with following wa - just change confirmation popup code,
var exitPopupControl = function(event) {
//if I press back again, just go out
$ionicPlatform.onHardwareBackButton(function(event2){
navigator.app.exitApp();
});
if($state.current.name === "app.startseite"){
$ionicPopup.confirm({
title: 'Exit',
template: 'Do you want to exit? <br /><small>Press Back again to exit.</small>'
}).then(function(res) {
if(res) {
$rootScope.exitPopupShowed = false;
navigator.app.exitApp();
} else {
return;
}
});
}
else {
window.history.back();
}
};
$ionicPlatform.registerBackButtonAction(exitPopupControl, 100);
OR you can try something following:
document.addEventListener("deviceready", function() {
document.addEventListener("backbutton", function(e) {
$ionicPopup.confirm({
title: 'Exit',
template: 'Do you want to exit? <br /><small>Press Back again to exit.</small>'
}).then(function(res) {
if(res) {
$rootScope.exitPopupShowed = false;
navigator.app.exitApp();
} else {
return;
}
});
}, false);
}, false);
OR you can try something with toast, i prefer to use this one,
var countTimerForCloseApp = false;
$ionicPlatform.registerBackButtonAction(function(e) {
e.preventDefault();
function showConfirm() {
if (countTimerForCloseApp) {
ionic.Platform.exitApp();
} else {
countTimerForCloseApp = true;
showToastMsg($cordovaToast, 'Press again to exit.');
$timeout(function() {
countTimerForCloseApp = false;
}, 2000);
}
};
// Is there a page to go back to?
if ($ionicHistory.backView()) {
// Go back in history
$ionicHistory.backView().go();
} else {
// This is the last page: Show confirmation popup
showConfirm();
}
return false;
}, 101);
Thank you