代号One Java扫描仪-移动应用生成错误

Question

I am building a Codename One Mobile Java app that requires to scan bar codes. I get build error on the build server. It used to work but of late in the last month I can't build a scanner app. Has anyone encountered this challenge? How can I resolve it? Below are the steps I took. Thanks!

I created a sample cn1 hello world barebones app with the native theme.

I imported these after adding the cn1-codescan and QRScanner libs using the Codename One Settings Wizard. ext.codescan.CodeScanner and codename1.ext.codescan.ScanResult and littlemonkey.qrscanner.QRScanner

I created button to scan a bar code.

Button btn_scanBarcode = new Button("Barcode");
btn_scanBarcode.addActionListener(new ActionListener() 
{
    @Override
    public void actionPerformed(ActionEvent evt) 
    {
        if (CodeScanner.getInstance() != null) 
        {
            QRScanner.scanBarCode(new ScanResult() 
            {
                public void scanCompleted(String contents, String formatName, byte[] rawBytes) 
                {
                    Dialog.show("Completed", contents, "OK", null);
                }

                public void scanCanceled() 
                {
                    Dialog.show("Cancelled", "Scan Cancelled", "OK", null);
                }

                public void scanError(int errorCode, String message) 
                {
                    Dialog.show("Error", message, "OK", null);
                }
            });
        } 
        else 
        {
            Dialog.show("Not Supported","Bar Code Scanning is not available on this device","OK",null);
        }
    }
});

Answer 1

You need to remove the old cn1libs and install the latest version from the extension manager UI within Codename One Settings .

I suggest deleting the ios.* and android.* build hints too so refresh client libs will update them to the latest version.