cordova-plugin-camera

cordova-plugin-camera

This plugin defines a global navigator.camera object, which provides an API for taking pictures and for choosing images from the system's image library.

Although the object is attached to the global scoped navigator, it is not available until after the deviceready event.

document.addEventListener("deviceready", onDeviceReady, false);
function onDeviceReady() {
    console.log(navigator.camera);
}

Installation

This requires cordova 5.0+

cordova plugin add cordova-plugin-camera

Older versions of cordova can still install via the deprecated id

cordova plugin add org.apache.cordova.camera

It is also possible to install via repo url directly ( unstable )

cordova plugin add https://github.com/apache/cordova-plugin-camera.git

How to Contribute

Contributors are welcome! And we need your contributions to keep the project moving forward. You can report bugs, improve the documentation, or contribute code.

There is a specific contributor workflow we recommend. Start reading there. More information is available on our wiki.

:warning: Found an issue? File it on JIRA issue tracker.

Have a solution? Send a Pull Request.

In order for your changes to be accepted, you need to sign and submit an Apache ICLA (Individual Contributor License Agreement). Then your name will appear on the list of CLAs signed by non-committers or Cordova committers.

And don't forget to test and document your code.

This documentation is generated by a tool

:warning: Run npm install in the plugin repo to enable automatic docs generation if you plan to send a PR.
jsdoc-to-markdown is used to generate the docs.
Documentation consists of template and API docs produced from the plugin JS code and should be regenerated before each commit (done automatically via husky, running npm run gen-docs script as a precommit hook - see package.json for details).

---

API Reference

• camera

  • .getPicture(successCallback, errorCallback, options)
  • .cleanup()
  • .onError : function
  • .onSuccess : function
  • .CameraOptions : Object

• Camera

  • .DestinationType : enum
  • .EncodingType : enum
  • .MediaType : enum
  • .PictureSourceType : enum
  • .PopoverArrowDirection : enum
  • .Direction : enum

• CameraPopoverHandle

• CameraPopoverOptions

---

camera

camera.getPicture(successCallback, errorCallback, options)

Takes a photo using the camera, or retrieves a photo from the device's image gallery. The image is passed to the success callback as a base64-encoded String, or as the URI for the image file.

The camera.getPicture function opens the device's default camera application that allows users to snap pictures by default - this behavior occurs, when Camera.sourceType equals Camera.PictureSourceType.CAMERA.
Once the user snaps the photo, the camera application closes and the application is restored.

If Camera.sourceType is Camera.PictureSourceType.PHOTOLIBRARY or Camera.PictureSourceType.SAVEDPHOTOALBUM, then a dialog displays that allows users to select an existing image. The camera.getPicture function returns a CameraPopoverHandle object, which can be used to reposition the image selection dialog, for example, when the device orientation changes.

The return value is sent to the cameraSuccess callback function, in one of the following formats, depending on the specified cameraOptions:

• A String containing the base64-encoded photo image.

• A String representing the image file location on local storage (default).

You can do whatever you want with the encoded image or URI, for example:

• Render the image in an <img> tag, as in the example below

• Save the data locally (LocalStorage, Lawnchair, etc.)

• Post the data to a remote server

NOTE: Photo resolution on newer devices is quite good. Photos selected from the device's gallery are not downscaled to a lower quality, even if a quality parameter is specified. To avoid common memory problems, set Camera.destinationType to FILE_URI rather than DATA_URL.

Supported Platforms

• More examples

• Quirks

Kind: static method of camera

Param	Type	Description
successCallback	onSuccess
errorCallback	onError
options	CameraOptions	CameraOptions

Example

navigator.camera.getPicture(cameraSuccess, cameraError, cameraOptions);

camera.cleanup()

Removes intermediate image files that are kept in temporary storage after calling camera.getPicture. Applies only when the value of Camera.sourceType equals Camera.PictureSourceType.CAMERA and the Camera.destinationType equals Camera.DestinationType.FILE_URI.

Supported Platforms

Kind: static method of camera
Example

navigator.camera.cleanup(onSuccess, onFail);

function onSuccess() {
    console.log("Camera cleanup success.")
}

function onFail(message) {
    alert('Failed because: ' + message);
}

camera.onError : function

Callback function that provides an error message.

Kind: static typedef of camera

Param	Type	Description
message	string	The message is provided by the device's native code.

camera.onSuccess : function

Callback function that provides the image data.

Kind: static typedef of camera

Param	Type	Description
imageData	string	Base64 encoding of the image data, or the image file URI, depending on cameraOptions in effect.

Example

// Show image
//
function cameraCallback(imageData) {
   var image = document.getElementById('myImage');
   image.src = "data:image/jpeg;base64," + imageData;
}

camera.CameraOptions : Object

Optional parameters to customize the camera settings.

• Quirks

Kind: static typedef of camera
Properties

Name	Type	Default	Description
quality	number	50	Quality of the saved image, expressed as a range of 0-100, where 100 is typically full resolution with no loss from file compression. (Note that information about the camera's resolution is unavailable.)
destinationType	DestinationType	FILE_URI	Choose the format of the return value.
sourceType	PictureSourceType	CAMERA	Set the source of the picture.
allowEdit	Boolean	true	Allow simple editing of image before selection.
encodingType	EncodingType	JPEG	Choose the returned image file's encoding.
targetWidth	number		Width in pixels to scale image. Must be used with targetHeight. Aspect ratio remains constant.
targetHeight	number		Height in pixels to scale image. Must be used with targetWidth. Aspect ratio remains constant.
mediaType	MediaType	PICTURE	Set the type of media to select from. Only works when PictureSourceType is PHOTOLIBRARY or SAVEDPHOTOALBUM.
correctOrientation	Boolean		Rotate the image to correct for the orientation of the device during capture.
saveToPhotoAlbum	Boolean		Save the image to the photo album on the device after capture.
popoverOptions	CameraPopoverOptions		iOS-only options that specify popover location in iPad.
cameraDirection	Direction	BACK	Choose the camera to use (front- or back-facing).

---

Camera

Camera.DestinationType : enum

Kind: static enum property of Camera
Properties

Name	Type	Default	Description
DATA_URL	number	0	Return base64 encoded string
FILE_URI	number	1	Return file uri (content://media/external/images/media/2 for Android)
NATIVE_URI	number	2	Return native uri (eg. asset-library://... for iOS)

Camera.EncodingType : enum

Kind: static enum property of Camera
Properties

Name	Type	Default	Description
JPEG	number	0	Return JPEG encoded image
PNG	number	1	Return PNG encoded image

Camera.MediaType : enum

Kind: static enum property of Camera
Properties

Name	Type	Default	Description
PICTURE	number	0	Allow selection of still pictures only. DEFAULT. Will return format specified via DestinationType
VIDEO	number	1	Allow selection of video only, ONLY RETURNS URL
ALLMEDIA	number	2	Allow selection from all media types

Camera.PictureSourceType : enum

Kind: static enum property of Camera
Properties

Name	Type	Default	Description
PHOTOLIBRARY	number	0	Choose image from picture library (same as SAVEDPHOTOALBUM for Android)
CAMERA	number	1	Take picture from camera
SAVEDPHOTOALBUM	number	2	Choose image from picture library (same as PHOTOLIBRARY for Android)

Camera.PopoverArrowDirection : enum

Matches iOS UIPopoverArrowDirection constants to specify arrow location on popover.

Kind: static enum property of Camera
Properties

Name	Type	Default
ARROW_UP	number	1
ARROW_DOWN	number	2
ARROW_LEFT	number	4
ARROW_RIGHT	number	8
ARROW_ANY	number	15

Camera.Direction : enum

Kind: static enum property of Camera
Properties

Name	Type	Default	Description
BACK	number	0	Use the back-facing camera
FRONT	number	1	Use the front-facing camera

---

CameraPopoverOptions

iOS-only parameters that specify the anchor element location and arrow direction of the popover when selecting images from an iPad's library or album. Note that the size of the popover may change to adjust to the direction of the arrow and orientation of the screen. Make sure to account for orientation changes when specifying the anchor element location.

Param	Type	Default	Description
[x]	Number	0	x pixel coordinate of screen element onto which to anchor the popover.
[y]	Number	32	y pixel coordinate of screen element onto which to anchor the popover.
[width]	Number	320	width, in pixels, of the screen element onto which to anchor the popover.
[height]	Number	480	height, in pixels, of the screen element onto which to anchor the popover.
[arrowDir]	PopoverArrowDirection	ARROW_ANY	Direction the arrow on the popover should point.

---

CameraPopoverHandle

A handle to an image picker popover.

Supported Platforms

Example

var cameraPopoverHandle = navigator.camera.getPicture(onSuccess, onFail,
{ 
    destinationType: Camera.DestinationType.FILE_URI,
    sourceType: Camera.PictureSourceType.PHOTOLIBRARY,
    popoverOptions: new CameraPopoverOptions(300, 300, 100, 100, Camera.PopoverArrowDirection.ARROW_ANY)
});

// Reposition the popover if the orientation changes.
window.onorientationchange = function() {
    var cameraPopoverOptions = new CameraPopoverOptions(0, 0, 100, 100, Camera.PopoverArrowDirection.ARROW_ANY);
    cameraPopoverHandle.setPosition(cameraPopoverOptions);
}

---

camera.getPicture Errata

Example

Take a photo and retrieve it as a 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 a photo and retrieve the image's 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);
}

Preferences (iOS)

• CameraUsesGeolocation (boolean, defaults to false). For capturing JPEGs, set to true to get geolocation data in the EXIF header. This will trigger a request for geolocation permissions if set to true.

   <preference name="CameraUsesGeolocation" value="false" />
  

Amazon Fire OS Quirks

Amazon Fire OS uses intents to launch the camera activity on the device to capture images, and on phones with low memory, the Cordova activity may be killed. In this scenario, the image may not appear when the cordova activity is restored.

Android Quirks

Android uses intents to launch the camera activity on the device to capture images, and on phones with low memory, the Cordova activity may be killed. In this scenario, the result from the plugin call will be delivered via the resume event. See the Android Lifecycle guide for more information. The pendingResult.result value will contain the value that would be passed to the callbacks (either the URI/URL or an error message). Check the pendingResult.pluginStatus to determine whether or not the call was successful.

Browser Quirks

Can only return photos as base64-encoded image.

Firefox OS Quirks

Camera plugin is currently implemented using Web Activities.

iOS Quirks

Including a JavaScript alert() in either of the callback functions can cause problems. Wrap the alert within a setTimeout() to allow the iOS image picker or popover to fully close before the alert displays:

setTimeout(function() {
    // do your thing here!
}, 0);

Windows Phone 7 Quirks

Invoking the native camera application while the device is connected via Zune does not work, and triggers an error callback.

Tizen Quirks

Tizen only supports a destinationType of Camera.DestinationType.FILE_URI and a sourceType of Camera.PictureSourceType.PHOTOLIBRARY.

CameraOptions Errata

Amazon Fire OS Quirks

• Any cameraDirection value results in a back-facing photo.

• Ignores the allowEdit parameter.

• Camera.PictureSourceType.PHOTOLIBRARY and Camera.PictureSourceType.SAVEDPHOTOALBUM both display the same photo album.

Android Quirks

• Any cameraDirection value results in a back-facing photo.

• allowEdit is unpredictable on Android and it should not be used! The Android implementation of this plugin tries to find and use an application on the user's device to do image cropping. The plugin has no control over what application the user selects to perform the image cropping and it is very possible that the user could choose an incompatible option and cause the plugin to fail. This sometimes works because most devices come with an application that handles cropping in a way that is compatible with this plugin (Google Plus Photos), but it is unwise to rely on that being the case. If image editing is essential to your application, consider seeking a third party library or plugin that provides its own image editing utility for a more robust solution.

• Camera.PictureSourceType.PHOTOLIBRARY and Camera.PictureSourceType.SAVEDPHOTOALBUM both display the same photo album.

• Ignores the encodingType parameter if the image is unedited (i.e. quality is 100, correctOrientation is false, and no targetHeight or targetWidth are specified). The CAMERA source will always return the JPEG file given by the native camera and the PHOTOLIBRARY and SAVEDPHOTOALBUM sources will return the selected file in its existing encoding.

BlackBerry 10 Quirks

• Ignores the quality parameter.

• Ignores the allowEdit parameter.

• Camera.MediaType is not supported.

• Ignores the correctOrientation parameter.

• Ignores the cameraDirection parameter.

Firefox OS Quirks

• Ignores the quality parameter.

• Camera.DestinationType is ignored and equals 1 (image file URI)

• Ignores the allowEdit parameter.

• Ignores the PictureSourceType parameter (user chooses it in a dialog window)

• Ignores the encodingType

• Ignores the targetWidth and targetHeight

• Camera.MediaType is not supported.

• Ignores the correctOrientation parameter.

• Ignores the cameraDirection parameter.

iOS Quirks

• When using destinationType.FILE_URI, photos are saved in the application's temporary directory. The contents of the application's temporary directory is deleted when the application ends.

• When using destinationType.NATIVE_URI and sourceType.CAMERA, photos are saved in the saved photo album regardless on the value of saveToPhotoAlbum parameter.

Tizen Quirks

• options not supported

• always returns a FILE URI

Windows Phone 7 and 8 Quirks

• Ignores the allowEdit parameter.

• Ignores the correctOrientation parameter.

• Ignores the cameraDirection parameter.

• Ignores the saveToPhotoAlbum parameter. IMPORTANT: All images taken with the wp7/8 cordova camera API are always copied to the phone's camera roll. Depending on the user's settings, this could also mean the image is auto-uploaded to their OneDrive. This could potentially mean the image is available to a wider audience than your app intended. If this a blocker for your application, you will need to implement the CameraCaptureTask as documented on msdn : http://msdn.microsoft.com/en-us/library/windowsphone/develop/hh394006.aspx You may also comment or up-vote the related issue in the issue tracker

• Ignores the mediaType property of cameraOptions as the Windows Phone SDK does not provide a way to choose videos from PHOTOLIBRARY.