Nativescript: Camera module: toBase64String(...) returns null

[dpdragnev]

Hello,

I am testing on an iOS device and I am trying to convert the picture taken into a Base 64 string so I can submit it to the server for processing. However the toBase64String() is returning null. Here is my code:

cameraModule.takePicture().then(function (img) {
        try {
            var imageData = img.toBase64String('image/png');
            //  imageData is null //
           ...
        } catch (e) {
            alert(e);
        }         
    });

This code seems to work fine on Android.

Am I doing anything wrong here?

Thank you.

[Daxito]

@dpdragnev
I think is should be img.toBase64String(enums.ImageFormat.png, 100);

I am doing something similar and that works.

[NickIliev]

Hi @dpdragnev

As @Daxito pointed out one way is to use the NativeScript enumerations module.

var enums = require("ui/enums");

img.toBase64String(enums.ImageFormat.png);

or to use directly the format with

img.toBase64String("png");

The second argument (quality) is optional and if not passed will be 100 by default

[dpdragnev]

Thank you @Daxito and @NickIliev. I am testing it now.

[dpdragnev]

For some reason, I could not make it work with img.toBase64String("png"); but img.toBase64String("jpeg"); worked.

Thanks for the help.

[NickIliev]

@dpdragnev The Android camera is taking pictures in jpeg format by default so this is the expected format to convert. (however Screenshots for most Android deveices are in png)

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