license: Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
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Takes a photo using the camera or retrieves a photo from the device's album. The image is passed to the success callback as a base64 encoded String or as the URI of an image file. The method itself returns a CameraPopoverHandle object, which can be used to reposition the file selection popover.
navigator.camera.getPicture( cameraSuccess, cameraError, [ cameraOptions ] );
Function camera.getPicture opens the device's default camera application so that the user can take a picture (if Camera.sourceType = Camera.PictureSourceType.CAMERA, which is the default). Once the photo is taken, the camera application closes and your application is restored.
If Camera.sourceType = Camera.PictureSourceType.PHOTOLIBRARY or Camera.PictureSourceType.SAVEDPHOTOALBUM, then a photo chooser dialog is shown, from which a photo from the album can be selected. A CameraPopoverHandle object, which can be used to reposition the photo chooser dialog (eg. when the device orientation changes) is returned by camera.getPicture.
The return value will be sent to the cameraSuccess function, in one of the following formats, depending on the cameraOptions you specify:
String containing the Base64 encoded photo image.String representing the image file location on local storage (default).You can do whatever you want with the encoded image or URI, for example:
<img> tag (see example below)LocalStorage, Lawnchair, etc)Note: The image quality of pictures taken using the camera on newer devices is quite good, and images from the Photo Album will not be downscaled to a lower quality, even if a quality parameter is specified. Encoding such images using Base64 has caused memory issues on many newer devices. Therefore, using FILE_URI as the ‘Camera.destinationType’ is highly recommended.
Including a JavaScript alert() in either of the callback functions can cause problems. Wrap the alert in a setTimeout() to allow the iOS image picker or popover to fully close before the alert is displayed:
setTimeout(function() {
// do your thing here!
}, 0);
Invoking the native camera application while your device is connected via Zune will not work, and the error callback will be triggered.
Only ‘destinationType: Camera.DestinationType.FILE_URI’ and ‘sourceType: Camera.PictureSourceType.PHOTOLIBRARY’ are supported.
Take photo and retrieve Base64-encoded image:
navigator.camera.getPicture(onSuccess, onFail, { quality: 50,
destinationType: Camera.DestinationType.DATA_URL
});
function onSuccess(imageData) {
var image = document.getElementById('myImage');
image.src = "data:image/jpeg;base64," + imageData;
}
function onFail(message) {
alert('Failed because: ' + message);
}
Take photo and retrieve image file location:
navigator.camera.getPicture(onSuccess, onFail, { quality: 50,
destinationType: Camera.DestinationType.FILE_URI });
function onSuccess(imageURI) {
var image = document.getElementById('myImage');
image.src = imageURI;
}
function onFail(message) {
alert('Failed because: ' + message);
}
<!DOCTYPE html>
<html>
<head>
<title>Capture Photo</title>
<script type="text/javascript" charset="utf-8" src="cordova-x.x.x.js"></script>
<script type="text/javascript" charset="utf-8">
var pictureSource; // picture source
var destinationType; // sets the format of returned value
// Wait for Cordova to connect with the device
//
document.addEventListener("deviceready",onDeviceReady,false);
// Cordova is ready to be used!
//
function onDeviceReady() {
pictureSource=navigator.camera.PictureSourceType;
destinationType=navigator.camera.DestinationType;
}
// Called when a photo is successfully retrieved
//
function onPhotoDataSuccess(imageData) {
// Uncomment to view the base64 encoded image data
// console.log(imageData);
// Get image handle
//
var smallImage = document.getElementById('smallImage');
// 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;
}
// Called when a photo is successfully retrieved
//
function onPhotoURISuccess(imageURI) {
// Uncomment to view the image file URI
// console.log(imageURI);
// Get image handle
//
var largeImage = document.getElementById('largeImage');
// Unhide image elements
//
largeImage.style.display = 'block';
// Show the captured photo
// The inline CSS rules are used to resize the image
//
largeImage.src = imageURI;
}
// A button will call this function
//
function capturePhoto() {
// Take picture using device camera and retrieve image as base64-encoded string
navigator.camera.getPicture(onPhotoDataSuccess, onFail, { quality: 50,
destinationType: destinationType.DATA_URL });
}
// A button will call this function
//
function capturePhotoEdit() {
// Take picture using device camera, allow edit, and retrieve image as base64-encoded string
navigator.camera.getPicture(onPhotoDataSuccess, onFail, { quality: 20, allowEdit: true,
destinationType: destinationType.DATA_URL });
}
// A button will call this function
//
function getPhoto(source) {
// Retrieve image file location from specified source
navigator.camera.getPicture(onPhotoURISuccess, onFail, { quality: 50,
destinationType: destinationType.FILE_URI,
sourceType: source });
}
// Called if something bad happens.
//
function onFail(message) {
alert('Failed because: ' + message);
}
</script>
</head>
<body>
<button onclick="capturePhoto();">Capture Photo</button> <br>
<button onclick="capturePhotoEdit();">Capture Editable Photo</button> <br>
<button onclick="getPhoto(pictureSource.PHOTOLIBRARY);">From Photo Library</button><br>
<button onclick="getPhoto(pictureSource.SAVEDPHOTOALBUM);">From Photo Album</button><br>
<img style="display:none;width:60px;height:60px;" id="smallImage" src="" />
<img style="display:none;" id="largeImage" src="" />
</body>
</html>