Return to PWA after calling a barcodescanner-App ???

[erich.wanker]

Hello,

 

if my unigui app is running in  Android Chrome Browser - it calls the barcodescanner-app - and the barcodescanner-app goes back to the chrome-browser...EVERYTHING works fine !

if the same unigui app is installed as PWA -  the barcodescanner-app starts the Chromebrowser with the url of my app - and does not go back to the PWA

 

I USE :

i found following solution here in the forum to scann a barcode:

1. install https://play.google.com/store/apps/details?id=com.geekslab.qrbarcodescanner.pro&hl=en

2. create a unigui app -> create a button -> Clientevent -> extevent -> function click(sender, e, eOpts) {  getScan();  }

and include following code in Mainfor,script:

function zxinglistener(e){
        localStorage["zxingbarcode"] = "";
        if(e.url.split("\#")[0] == window.location.href){
            window.focus();
            processBarcode(decodeURIComponent(e.newValue));
        }
        window.removeEventListener("storage", zxinglistener, false);
    }
    if(window.location.hash != ""){
        localStorage["zxingbarcode"] = window.location.hash.substr(1);
        self.close();
        window.location.href="about:blank";//In case self.close is disabled
    }else{
        window.addEventListener("hashchange", function(e){
            window.removeEventListener("storage", zxinglistener, false);
            var hash = window.location.hash.substr(1);
            if (hash != "") {
                window.location.hash = "";
                processBarcode(decodeURIComponent(hash));
            }
        }, false);
    }
    function getScan(){
        var href = window.location.href.split("\#")[0];
        window.addEventListener("storage", zxinglistener, false);
        zxingWindow = window.open("zxing://scan/?ret=" + encodeURIComponent(href + "#{CODE}"),'_self');
    }
       function processBarcode(b){
		ajaxRequest(MainForm.form,"BARCODE",["value="+b]);
            }

 

and to display the result:
 

procedure TMainForm.UniFormAjaxEvent(Sender: TComponent; EventName: string; Params: TUniStrings);

  if EventName = 'BARCODE' then
    mainform.nachricht_click('EAN oder QR Code:' + Params.Values['value']);