nfc.addNdefListener event not fired but success event work

[gianvoci]

I'm using a nexus 5 + marshmallow S.O. and with latest phonegap 6.2.9 when I try to read a Mifare Forum type 2, with some data, the callback isn't fired.

Here's my piece of code:

    onDeviceReady: function() {
        nfc.addNdefListener(
            function(nfcEvent) {
                alert('received');
            },
            function() { // success callback
                alert("Waiting for NDEF tag");
            },
            function(error) { // error callback
                alert("Error adding NDEF listener " + JSON.stringify(error));
            }
        );
    }

[don]

Use https://play.google.com/store/apps/details?id=com.nxp.nfc.tagwriter&hl=en to write a new message onto the tag. A text record is fine.

Then use your app to read the tag. The tag must contain an NDEF message for nfc.addNdefListener to fire.

[gianvoci]

Already tried, with same app and other app, but doens't work. Other ideas?

EDIT: using tagwriter app, NDEF message maybe a simple text like "hi all"?

[don]

If you can read and write NDEF with NxP Tag Writer, your phone works OK. If not maybe the tag is bad.

Check your app for JavaScript errors. Watch adb logcat output. Connect with chrome://inspect and look for errors.

[don]

It's possible there is some android-6.0 permission that needs to be added, target android-22 in config.xml to eliminate that issue.

[gianvoci]

Ok target with 22 and there are some info for you:

Using inspector give me that error:

And in log cat:

07-07 11:33:29.297 32332 32332 D NfcPlugin: onPause Intent { } 07-07 11:33:29.297 32332 32332 D NfcPlugin: stopNfc 07-07 11:33:29.298 32332 32332 D NfcPlugin: onNewIntent Intent { act=android.nfc.action.TECH_DISCOVERED flg=0x34000000 cmp=it.ekra.puntoit/.MainActivity (has extras) } 07-07 11:33:29.298 32332 32332 D NfcPlugin: onResume Intent { act=android.nfc.action.TECH_DISCOVERED flg=0x34000000 cmp=it.ekra.puntoit/.MainActivity (has extras) } 07-07 11:33:29.298 32332 2212 D NfcPlugin: parseMessage Intent { act=android.nfc.action.TECH_DISCOVERED flg=0x34000000 cmp=it.ekra.puntoit/.MainActivity (has extras) } 07-07 11:33:29.298 32332 2212 D NfcPlugin: action android.nfc.action.TECH_DISCOVERED 07-07 11:33:29.298 32332 2212 D NfcPlugin: android.nfc.tech.NfcA 07-07 11:33:29.298 32332 2212 D NfcPlugin: android.nfc.tech.MifareUltralight 07-07 11:33:29.298 32332 2212 D NfcPlugin: android.nfc.tech.Ndef 07-07 11:33:29.300 2874 29395 W AudioTrack: AUDIO_OUTPUT_FLAG_FAST denied by client; transfer 4, track 16000 Hz, output 48000 Hz 07-07 11:33:29.301 32332 2212 V NfcPlugin: var e = document.createEvent('Events'); 07-07 11:33:29.301 32332 2212 V NfcPlugin: e.initEvent('ndef'); 07-07 11:33:29.301 32332 2212 V NfcPlugin: e.tag = {"id":[4,-58,106,-126,-70,41,-128],"techTypes":["android.nfc.tech.NfcA","android.nfc.tech.MifareUltralight","android.nfc.tech.Ndef"],"type":"NFC Forum Type 2","maxSize":142,"isWritable":true,"ndefMessage":[{"tnf":1,"type":[84],"id":[],"payload":[2,105,116,80,114,111,118,97,32,49,50,51]}],"canMakeReadOnly":true}; 07-07 11:33:29.301 32332 2212 V NfcPlugin: document.dispatchEvent(e); 07-07 11:33:29.304 32332 32332 I chromium: [INFO:CONSOLE(1070)] "Uncaught EvalError: Refused to evaluate a string as JavaScript because 'unsafe-eval' is not an allowed source of script in the following Content Security Policy directive: "default-src * 'unsafe-inline'". 07-07 11:33:29.304 32332 32332 I chromium: ", source: file:///android_asset/www/cordova.js (1070) 07-07 11:33:29.307 2874 2362 D NativeNfcTag: Starting background presence check 07-07 11:33:29.593 18466 18507 I EffectDs: Effect_process(b6002500) called on session 0 (logs suppressed for next second) (inBuffer==outBuffer)?TRUE! outputConfig.accessMode=WRITE 07-07 11:33:30.461 866 23322 D NetlinkSocketObserver: NeighborEvent{elapsedMs=447658655, 192.168.0.1, [4C60DE816DF0], RTM_NEWNEIGH, NUD_STALE} 07-07 11:33:30.622 18466 18507 I EffectDs: Effect_process(b6002500) called on session 0 (logs suppressed for next second) (inBuffer==outBuffer)?TRUE! outputConfig.accessMode=WRITE 07-07 11:33:30.646 2874 2362 D NativeNfcTag: Tag lost, restarting polling loop 07-07 11:33:30.646 2874 2362 D NfcService: Discovery configuration equal, not updating. 07-07 11:33:30.646 2874 2362 D NativeNfcTag: Stopping background presence check

[gianvoci]

I'v discovered the issue, is in my html:

removing that I'v fixed the issue, but, you know why? My html is from hello world demo.

[don]

Glad it's working. The content security policy blocked your inline JavaScript eval. Tough to tell exactly what the problem is without seeing your code or the sample you used.

[gianvoci]

I'v used the helloworld created by CLI "phonegap create ....." etc.:

<!DOCTYPE html>
<html>

<head>
    <meta charset="utf-8" />
    <meta name="format-detection" content="telephone=no" />
    <meta name="msapplication-tap-highlight" content="no" />
    <meta name="viewport" content="user-scalable=no, initial-scale=1, maximum-scale=1, minimum-scale=1, width=device-width" />
    <!-- meta http-equiv="Content-Security-Policy" content="default-src * 'unsafe-inline'; style-src 'self' 'unsafe-inline'; media-src *" / -->  WITHOUT THIS NOW WORK
    <link rel="stylesheet" type="text/css" href="css/index.css" />
    <title>Test NFC</title>
</head>

<body>
    <center>NFC Demo</center>
    <script type="text/javascript" src="cordova.js"></script>
    <script type="text/javascript" src="js/index.js"></script>
    <script type="text/javascript">
        app.initialize();
    </script>
</body>

</html>

and:

var app = { // Application Constructor initialize: function() { this.bindEvents(); }, // Bind Event Listeners // // Bind any events that are required on startup. Common events are: // 'load', 'deviceready', 'offline', and 'online'. bindEvents: function() { document.addEventListener('deviceready', this.onDeviceReady, false); }, // deviceready Event Handler // // The scope of 'this' is the event. In order to call the 'receivedEvent' // function, we must explicitly call 'app.receivedEvent(...);' onDeviceReady: function() { nfc.addNdefListener( function(nfcEvent) { var tag = nfcEvent.tag, ndefMessage = tag.ndefMessage;

            // dump the raw json of the message
            // note: real code will need to decode
            // the payload from each record
            alert(JSON.stringify(ndefMessage));

            // assuming the first record in the message has
            // a payload that can be converted to a string.
            alert(nfc.bytesToString(ndefMessage[0].payload).substring(3));
        },
        function() { // success callback
            alert("Waiting for NDEF tag");
        },
        function(error) { // error callback
            alert("Error adding NDEF listener " + JSON.stringify(error));
        }
    );
}

};

nothing all.