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); }
cordova plugin add cordova-plugin-camera
It is also possible to install via repo url directly ( unstable )
cordova plugin add https://github.com/apache/cordova-plugin-camera.git
The plugin uses the ANDROIDX_CORE_VERSION
variable to configure androidx.core:core
dependency. This allows to avoid conflicts with other plugins that have the dependency hardcoded. If no value is passed, it will use 1.6.+
as the default value.
The variable is configured on install time
cordova plugin add cordova-plugin-camera --variable ANDROIDX_CORE_VERSION=1.8.0
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.
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.
Since iOS 10 it‘s mandatory to provide an usage description in the info.plist
if trying to access privacy-sensitive data. When the system prompts the user to allow access, this usage description string will displayed as part of the permission dialog box, but if you didn’t provide the usage description, the app will crash before showing the dialog. Also, Apple will reject apps that access private data but don't provide an usage description.
This plugins requires the following usage descriptions:
NSCameraUsageDescription
specifies the reason for your app to access the device's camera.NSPhotoLibraryUsageDescription
specifies the reason for your app to access the user's photo library.NSLocationWhenInUseUsageDescription
specifies the reason for your app to access the user's location information while your app is in use. (Set it if you have CameraUsesGeolocation
preference set to true
)NSPhotoLibraryAddUsageDescription
specifies the reason for your app to get write-only access to the user's photo libraryTo add these entries into the info.plist
, you can use the edit-config
tag in the config.xml
like this:
<edit-config target="NSCameraUsageDescription" file="*-Info.plist" mode="merge"> <string>need camera access to take pictures</string> </edit-config>
<edit-config target="NSPhotoLibraryUsageDescription" file="*-Info.plist" mode="merge"> <string>need photo library access to get pictures from there</string> </edit-config>
<edit-config target="NSLocationWhenInUseUsageDescription" file="*-Info.plist" mode="merge"> <string>need location access to find things nearby</string> </edit-config>
<edit-config target="NSPhotoLibraryAddUsageDescription" file="*-Info.plist" mode="merge"> <string>need photo library access to save pictures there</string> </edit-config>
Takes a photo using the camera, or retrieves a photo from the device's image gallery. The result is provided in the first parameter of the successCallback
as a string.
As of v8.0.0, the result is formatted as URIs. The scheme will vary depending on settings and platform.
Platform | Destination Type | Format |
---|---|---|
Android | FILE_URI | An URI scheme such as file://... or content://... |
DATA_URL | Base 64 encoded with the proper data URI header | |
iOS | FILE_URI | file:// schemed paths |
DATA_URL | Base 64 encoded with the proper data URI header | |
Browser | FILE_URI | Not supported |
DATA_URL | Base 64 encoded with the proper data URI header |
v7 and earlier versions, the return format is as follows:
Platform | Destination Type | Format |
---|---|---|
Android | FILE_URI | Raw file path (unprefixed) |
DATA_URL | Base 64 encoded, without the data: prefix | |
iOS | FILE_URI | file:// schemed paths |
DATA_URL | Base 64 encoded, without the data: prefix | |
Browser | FILE_URI | Not supported |
DATA_URL | Base 64 encoded, without the data: prefix |
For this reason, upgrading to v8 is strongly recommended as it greatly streamlines the return data.
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 return value is sent to the cameraSuccess
callback function, in one of the following formats, depending on the specified cameraOptions
. You can do whatever you want with content:
<img>
or <video>
tagNOTE: 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
.
NOTE: To use saveToPhotoAlbum
option on Android 9 (API 28) and lower, the WRITE_EXTERNAL_STORAGE
permission must be declared.
To do this, add the following in your config.xml
:
<config-file target="AndroidManifest.xml" parent="/*" xmlns:android="http://schemas.android.com/apk/res/android"> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" android:maxSdkVersion="28" /> </config-file>
Android 10 (API 29) and later devices does not require WRITE_EXTERNAL_STORAGE
permission. If your application only supports Android 10 or later, then this step is not necessary.
When FILE_URI
is used, the returned path is not directly usable. The file path needs to be resolved into a DOM-usable URL using the Cordova File Plugin.
Additionally, the file URIs returned is a temporary read access grant. The OS reserves the right to revoke permission to access the resource, which typically occurs after the app has been closed. For images captured using the camera, the image is stored in a temporary location which can be cleared at any time, usually after the app exits. It‘s the application’s decision to decide how the content should be used depending on their use cases.
For persistent access to the content, the resource should be copied to your app‘s storage container. An example use case is an app allowing an user to select a profile picture from their gallery or camera. The application will need consistent access to that resource, so it’s not suitable to retain the temporary access path. So the appplication should copy the resource to a persistent location.
For use cases that involve temporary use, it is valid and safe to use the temporary file path to display the content. An example of this could be an image editing application, rendering the data into a canvas.
NOTE: The returned schemes is an implementation detail. Do not assume that it will always be a file://
URI.
Supported Platforms
More examples here. Quirks here.
Kind: static method of camera
Param | Type | Description |
---|---|---|
successCallback | onSuccess | |
errorCallback | onError | |
options | CameraOptions | CameraOptions |
Example
navigator.camera.getPicture(cameraSuccess, cameraError, cameraOptions);
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); }
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. |
Callback function that provides the image data.
Kind: static typedef of camera
Param | Type | Description |
---|---|---|
imageData | string | Data URI, or the image file URI, depending on cameraOptions in effect. |
Example
// Show image captured with FILE_URI function cameraCallback(imageData) { window.resolveLocalFileSystemURL(uri, (entry) => { let image = document.getElementById('myImage'); image.src = entry.toURL(); }, onError); } // Show image captured with DATA_URL function cameraCallback(imageData) { var image = document.getElementById('myImage'); image.src = imageData; }
Optional parameters to customize the camera settings.
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. |
Boolean | false | Deprecated. 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. See Android Quirks. | |
popoverOptions | CameraPopoverOptions | iOS-only options that specify popover location in iPad. | |
cameraDirection | Direction | BACK | Choose the camera to use (front- or back-facing). |
Defines the output format of Camera.getPicture
call.
Kind: static enum property of Camera
Properties
Name | Type | Default | Description |
---|---|---|---|
DATA_URL | number | 0 | Return data uri. DATA_URL can be very memory intensive and cause app crashes or out of memory errors. Use FILE_URI if possible |
FILE_URI | number | 1 | Return file uri (content://media/external/images/media/2 for Android) |
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 |
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 |
Defines the output format of Camera.getPicture
call.
Kind: static enum property of Camera
Properties
Name | Type | Default | Description |
---|---|---|---|
PHOTOLIBRARY | number | 0 | Choose image from the device's photo library (same as SAVEDPHOTOALBUM for Android) |
CAMERA | number | 1 | Take picture from camera |
SAVEDPHOTOALBUM | number | 2 | Choose image only from the device's Camera Roll album (same as PHOTOLIBRARY for Android) |
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 |
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 |
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. |
[popoverWidth] | Number | 0 | width of the popover (0 or not specified will use apple's default width). |
[popoverHeight] | Number | 0 | height of the popover (0 or not specified will use apple's default height). |
A handle to an image picker popover.
Supported Platforms
Example
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, 300, 600) }); // Reposition the popover if the orientation changes. window.onorientationchange = function() { var cameraPopoverHandle = new CameraPopoverHandle(); var cameraPopoverOptions = new CameraPopoverOptions(0, 0, 100, 100, Camera.PopoverArrowDirection.ARROW_ANY, 400, 500); cameraPopoverHandle.setPosition(cameraPopoverOptions); }
camera.getPicture
ErrataTake a photo and retrieve the image's file location:
// Don't forget to install cordova-plugin-file for resolveLocalFileSystemURL! navigator.camera.getPicture(onSuccess, onFail, { quality: 50, destinationType: Camera.DestinationType.FILE_URI }); function onSuccess(imageURI) { window.resolveLocalFileSystemURL(uri, (entry) => { let img = document.getElementById('image'); img.src = entry.toURL(); }, onFail); } function onFail(message) { alert('Failed because: ' + message); }
Take a photo and retrieve it as a Base64-encoded image:
/** * Warning: Using DATA_URL is not recommended! The DATA_URL destination * type is very memory intensive, even with a low quality setting. Using it * can result in out of memory errors and application crashes. Use FILE_URI * instead. */ navigator.camera.getPicture(onSuccess, onFail, { quality: 25, destinationType: Camera.DestinationType.DATA_URL }); function onSuccess(imageData) { var image = document.getElementById('myImage'); image.src = imageData; } function onFail(message) { alert('Failed because: ' + message); }
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" />
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.
Can only return photos as data URI image.
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);
CameraOptions
ErrataAny cameraDirection
value results in a back-facing photo. (= You can only use the back camera)
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 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.
The Camera plugin allows you to do things like open the device's Camera app and take a picture, or open the file picker and select one. The code snippets in this section demonstrate different tasks including:
Before you can take a picture, you need to set some Camera plugin options to pass into the Camera plugin's getPicture
function. Here is a common set of recommendations. In this example, you create the object that you will use for the Camera options, and set the sourceType
dynamically to support both the Camera app and the file picker.
function setOptions(srcType) { var options = { // Some common settings are 20, 50, and 100 quality: 50, destinationType: Camera.DestinationType.FILE_URI, // In this app, dynamically set the picture source, Camera or photo gallery sourceType: srcType, encodingType: Camera.EncodingType.JPEG, mediaType: Camera.MediaType.PICTURE, allowEdit: true, correctOrientation: true } return options; }
Typically, you want to use a FILE_URI instead of a DATA_URL to avoid most memory issues. JPEG is the recommended encoding type for Android.
You take a picture by passing in the options object to getPicture
, which takes a CameraOptions object as the third argument. When you call setOptions
, pass Camera.PictureSourceType.CAMERA
as the picture source.
function openCamera(selection) { var srcType = Camera.PictureSourceType.CAMERA; var options = setOptions(srcType); var func = createNewFileEntry; navigator.camera.getPicture(function cameraSuccess(imageUri) { displayImage(imageUri); // You may choose to copy the picture, save it somewhere, or upload. func(imageUri); }, function cameraError(error) { console.debug("Unable to obtain picture: " + error, "app"); }, options); }
Once you take the picture, you can display it or do something else. In this example, call the app's displayImage
function from the preceding code.
function displayImage(imgUri) { var elem = document.getElementById('imageFile'); elem.src = imgUri; }
To get smaller images, you can return a resized image by passing both targetHeight
and targetWidth
values with your CameraOptions object. In this example, you resize the returned image to fit in a 100px by 100px box (the aspect ratio is maintained, so 100px is either the height or width, whichever is greater in the source).
function openCamera(selection) { var srcType = Camera.PictureSourceType.CAMERA; var options = setOptions(srcType); var func = createNewFileEntry; if (selection == "camera-thmb") { options.targetHeight = 100; options.targetWidth = 100; } navigator.camera.getPicture(function cameraSuccess(imageUri) { // Do something }, function cameraError(error) { console.debug("Unable to obtain picture: " + error, "app"); }, options); }
When selecting a file using the file picker, you also need to set the CameraOptions object. In this example, set the sourceType
to Camera.PictureSourceType.SAVEDPHOTOALBUM
. To open the file picker, call getPicture
just as you did in the previous example, passing in the success and error callbacks along with CameraOptions object.
function openFilePicker(selection) { var srcType = Camera.PictureSourceType.SAVEDPHOTOALBUM; var options = setOptions(srcType); var func = createNewFileEntry; navigator.camera.getPicture(function cameraSuccess(imageUri) { // Do something }, function cameraError(error) { console.debug("Unable to obtain picture: " + error, "app"); }, options); }
Resizing a file selected with the file picker works just like resizing using the Camera app; set the targetHeight
and targetWidth
options.
function openFilePicker(selection) { var srcType = Camera.PictureSourceType.SAVEDPHOTOALBUM; var options = setOptions(srcType); var func = createNewFileEntry; if (selection == "picker-thmb") { // To downscale a selected image, // Camera.EncodingType (e.g., JPEG) must match the selected image type. options.targetHeight = 100; options.targetWidth = 100; } navigator.camera.getPicture(function cameraSuccess(imageUri) { // Do something with image }, function cameraError(error) { console.debug("Unable to obtain picture: " + error, "app"); }, options); }
If you want to do something like copy the image to another location, or upload it somewhere, an FileEntry
is needed for the returned picture. To do this, call window.resolveLocalFileSystemURL
on the file URI returned by the Camera app. If you need to use a FileEntry object, set the destinationType
to Camera.DestinationType.FILE_URI
in your CameraOptions object (this is also the default value).
NOTE: You need the File plugin to call window.resolveLocalFileSystemURL
.
Here is the call to window.resolveLocalFileSystemURL
. The image URI is passed to this function from the success callback of getPicture
. The success handler of resolveLocalFileSystemURL
receives the FileEntry object.
function getFileEntry(imgUri) { window.resolveLocalFileSystemURL(imgUri, function success(fileEntry) { // Example 1: Copy to app data directory window.resolveLocalFileSystemURL(cordova.file.dataDirectory, function (dataDirectoryEntry) { fileEntry.copyTo(dataDirectoryEntry, "profilePic", onSuccess, onError); }, onError); // Example 2: Upload it! fileEntry.file(function (file) { var reader = new FileReader(); reader.onloadend = function() { var xhr = new XMLHttpRequest(); xhr.open('POST', 'https://myserver.com/upload'); xhr.onload = function () { // All done! }; xhr.send(this.result); }; reader.readAsArrayBuffer(file); }, onError); }, onError); }