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i would like to ask you..
i have a code... using phonegap.. but i was confused about how to call / crop the image after take it from camera / file manager...
here the code...
<!DOCTYPE HTML>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, maximum-scale=1.0, user-scalable=no;" />
<meta http-equiv="Content-type" content="text/html; charset=utf-8">
<link rel="stylesheet" href="js/jquery.mobile-1.0.min.css" />
<script src="js/jquery-1.6.4.min.js"></script>
<script src="js/jquery.mobile-1.0.min.js"></script>
<script type="text/javascript" charset="utf-8" src="phonegap-1.1.0.js"></script>
<script type="text/javascript" charset="utf-8">
var deviceReady = false;
/**
* Take picture with camera
*/
function takePicture() {
navigator.camera.getPicture(
function(uri) {
var img = document.getElementById('camera_image');
img.style.visibility = "visible";
img.style.display = "block";
img.src = uri;
window.location.hash = "#page2";
/*document.getElementById('camera_status').innerHTML = "Success"; */
},
function(e) {
console.log("Error getting picture: " + e);
document.getElementById('camera_status').innerHTML = "Error getting picture.";
},
{ quality: 50, destinationType: navigator.camera.DestinationType.FILE_URI, targetWidth: 1153, targetHeight: 385
}
);
};
/**
* Select picture from library
*/
function selectPicture() {
navigator.camera.getPicture(
function(uri) {
var img = document.getElementById('camera_image');
img.style.visibility = "visible";
img.style.display = "block";
img.src = uri;
document.getElementById('camera_status').innerHTML = "Success";
window.location.hash = "#page2";
},
function(e) {
console.log("Error getting picture: " + e);
document.getElementById('camera_status').innerHTML = "Error getting picture.";
},
{ quality: 50, targetWidth: 1153, targetHeight: 385, destinationType: navigator.camera.DestinationType.FILE_URI, sourceType: navigator.camera.PictureSourceType.PHOTOLIBRARY});
};
/**
* Upload current picture
*/
function uploadPicture() {
// Get URI of picture to upload
var img = document.getElementById('camera_image');
var imageURI = img.src;
if (!imageURI || (img.style.display == "none")) {
document.getElementById('camera_status').innerHTML = "Take picture or select picture from library first.";
return;
}
// Verify server has been entered
server = document.getElementById('serverUrl').value;
if (server) {
// Specify transfer options
var options = new FileUploadOptions();
options.fileKey="file";
options.fileName=imageURI.substr(imageURI.lastIndexOf('/')+1);
options.mimeType="image/jpeg";
options.chunkedMode = false;
// Transfer picture to server
var ft = new FileTransfer();
$.mobile.showPageLoadingMsg();
ft.upload(imageURI, server, function(r) {
document.getElementById('camera_status').innerHTML = "Upload successful: "+r.bytesSent+" bytes uploaded.";
viewUploadedPictures();
$.mobile.hidePageLoadingMsg();
window.location.hash = "#page3";
}, function(error) {
$.mobile.hidePageLoadingMsg();
document.getElementById('camera_status').innerHTML = "Upload failed: Code = "+error.code;
}, options);
}
}
/**
* View pictures uploaded to the server
*/
function viewUploadedPictures() {
// Get server URL
server = document.getElementById('serverUrl').value;
if (server) {
// Get HTML that lists all pictures on server using XHR
var xmlhttp = new XMLHttpRequest();
// Callback function when XMLHttpRequest is ready
xmlhttp.onreadystatechange=function(){
if(xmlhttp.readyState === 4){
// HTML is returned, which has pictures to display
if (xmlhttp.status === 200) {
document.getElementById('server_images').innerHTML = xmlhttp.responseText;
}
// If error
else {
document.getElementById('server_images').innerHTML = "Error retrieving pictures from server.";
}
}
};
xmlhttp.open("GET", server , true);
xmlhttp.send();
}
}
/**
* Function called when page has finished loading.
*/
function init() {
document.addEventListener("deviceready", function() {deviceReady = true;}, false);
window.setTimeout(function() {
if (!deviceReady) {
alert("Error: PhoneGap did not initialize. Demo will not run correctly.");
}
},2000);
}
</script>
</head>
<body onload="init();">
<!-- Page 1 -->
<div data-role="page" id="page1">
<!-- Page 1 Header -->
<div data-role="header">
<h1>Ambil Gambar</h1>
</div>
<!-- Page 1 Content -->
<div data-role="content">
<center>
<a href="javascript:void(0)" onclick="takePicture();">
<img src="image/camera.png" width="150px" height="150px">
</a>
<br>
<br>
<b>Atau</b>
<br>
<br>
<a href="javascript:void(0)" onclick="selectPicture();">
<img src="image/upload.png">
</a>
</center>
</div>
<!-- Page 1 Footer -->
<div data-role="footer">
<h4>Footer 1</h4>
</div>
</div>
<!-- Page 2 -->
<div data-role="page" id="page2">
<!-- Page 2 Header -->
<div data-role="header">
<h1>Header 2</h1>
</div>
<!-- Page 2 Content -->
<div data-role="content">
<img style="width:100%;visibility:hidden;display:none;" id="camera_image" src="" />
<input type="button" onclick="uploadPicture();" value="Upload Picture" />
<input id="serverUrl" type="text" value="http://kiosban.com/android/camera/upload.php" />
Status : <span id="camera_status"></span>
<a href="#page3">Skip</a>
</div>
<!-- Page 2 Footer -->
<div data-role="footer">
<h4>Footer 2</h4>
</div>
</div>
<!-- Page 3 -->
<div data-role="page" id="page3">
<!-- Page 3 Header -->
<div data-role="header">
<h1>Header 3</h1>
</div>
<!-- Page 3 Content -->
<div data-role="content">
<div id="server_images"></div>
<h3>Server:</h3>
<b>Images on server:</b>
<div id="server_images"></div>
<input type="button" onclick="viewUploadedPictures();" value="View Uploaded Pictures" />
</div>
<!-- Page 2 Footer -->
<div data-role="footer">
<h4>Footer 2</h4>
</div>
</div>
</body>
</html>
I want to call image crop on #page2, so there is an upload button to upload the cropped image...
can anybody help me do that??
283
PhoneGap does not have built-in crop features. Some platforms (iPhone for sure) allows the user to crop the picture after taking it with the camera but before it would be returned to your JavaScript code if you pass the allowEdit = true parameter to getPicture. But you won't have control here from your script.
You'll have to implement the cropping feature yourself from JavaScript. It is easier then expected with the canvas tag of HTML5. You can find a pretty tutorial here.
78
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