How to enable camera feature in a sencha touch application using phonegap?

Question

I have developed one application in Sencha Touch 2. I want to design a page in such a way that the page has a default image and one button below that. By clicking that button device camera should open (device mainly iPad and iPhone) and after capturing the image lets see it stored in a folder named as "capture" in your device. Then the captured image should replace that default image.

I want to use PhoneGap compulsorily. I have seen PhoneGap APIs for camera but I don't get it how to use it exactly. I am using Mac and Xcode for development.

Answer 1

In my app With sencha touch 2 and Phonegap 1.4 in Controller on take photo button handler

onTakePhotoButton: function(){
       // Retrieve image file location from specified source
        navigator.camera.getPicture(uploadPhoto, function (message) {
            alert('Get picture failed');
        }, {
            quality: 50,
            destinationType: navigator.camera.DestinationType.FILE_URI,
            sourceType: navigator.camera.PictureSourceType.CAMERA //or PHOTOLIBRARY
        }
        );
        function uploadPhoto(imageURI) {
            var options = new FileUploadOptions();
            options.fileKey = "file";
            var imagefilename = Number(new Date()) + ".jpg";
            options.fileName = imagefilename;
            options.mimeType = "image/jpeg";
            options.chunkedMode = false;
            var params = new Object();
            params.image = imagefilename;
            options.params = params;
            var ft = new FileTransfer();
            ft.upload(imageURI,your_request_upload_url_on_server, win, fail, options);
        }

        function win(r) {
            console.log("Code = " + r.responseCode);
            console.log("Response = " + r.response);
            console.log("Sent = " + r.bytesSent);
            var json_obj = Ext.decode(r.response);//remote server funciton upload return json type
            if(json_obj!=null && json_obj.response.image_name!=null){
                console.log(json_obj.response.image_name);
                imageDisplay.setSrc(your_image_root_tmp+json_obj.response.image_name+'?dc='+Number(new Date()));
            }else{
                Ext.Msg.alert('Errors', "The server response failure!");
            }            

        }

        function fail(error) {
            alert("An error has occurred: Code = " + error.code);
        }  
}

you can refer more detail here http://zacvineyard.com/blog/2011/03/upload-a-file-to-a-remote-server-with-phonegap

Answer 2

capturePhoto:function(){

       navigator.camera.getPicture(onPhotoDataSuccess, onFail, { quality: 50 });

       function onPhotoDataSuccess(imageData) {
       // Uncomment to view the base64 encoded image data
       // console.log(imageData);

       // Get image handle
       //
       var smallImage = document.getElementById('userLogo');

       // Unhide image elements
       //
       smallImage.style.display = 'block';

       // Show the captured photo
       // The inline CSS rules are used to resize the image
       //
       smallImage.src = "data:image/jpeg;base64," + imageData;        

plz verify ...