Re: How can i send data from Java Script to gwt Coding using JsInerop.

Your Java code isn't async, but your JSNI method and JS function are - the imageCapture() method is passing an async function to `navigator.camera.getPicture`, and expected it to return right away. Instead, your `imageCapture` method should take a java-annotated @JsFunction and pass that in place of onSuccess (and probably onFailure too).

On Wednesday, April 11, 2018 at 12:55:18 AM UTC-5, cRaZy cRuZz wrote:

Here it is ...!

-->I am calling cordova implementation from this coding. 

//Handles imageCapture icon 

final Image cameraIcon = new Image(ImageNameConstants.CAMERA);

cameraIcon.setStylePrimaryName(StyleConstants.CONDITION_IMAGE);  

cameraIcon.addClickHandler(new ClickHandler() {

@Override

public void onClick(ClickEvent event) {

Log.debug("onClick");

if (!isReadOnly() && isEditable()){

if (ClientSettings.isMobileNative()){

     imageData = imageCapture(); //This  might wrong iam not getting data.

FileContent fileContent = new FileContent();

if (imageData != null){

fileContent.setFileContent(imageData.getBytes());      

    FileRPCServiceAsync cameraRpc = ServiceFactory.getService(FileRPCService.class, FileContent.class);

cameraRpc.saveFile(fileContent,

new BaseAsyncCallback<FileContent>(messagePresenter) {

    @Override

public void handleSuccess(FileContent file) {

   

}

@Override

public boolean handleException(Throwable caught) {

Log.error("Error in saving file status:"

+ ErrorMessageHandler.stringify(caught));

return true;

}

});

}

}

                     private  native  String imageCapture()/*-{

if ($wnd.isImageSupported()){

return $wnd.imageCapture();

}else{

//var imageCaptureWidget = $doc.getElementById();

alert("NO-image");

}

}-*/;

});

-->This my JS code.

function isImageSupported(){

var supported = true;

return supported;

}

function imageCapture(){

if(isImageSupported()){

try {

        navigator.camera.getPicture(onSuccess, onFail, {

        quality: 50,

        destinationType: Camera.DestinationType.DATA_URL,

        sourceType: Camera.PictureSourceType.CAMERA

    });

    function onSuccess(imageData) {

   

        return imageData;

    }

    function onFail(message) {

        alert('Failed because: ' + message);

    }

} catch(e){

alert("CAPTURE-ERROR-Works On Mobile Devices Only.");

  }

   }

} 

please some one help me after taking image i need that base64 string in js to  java async call, how to achieve this by using jsInterop.

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