File: imagepicker.md | Updated: 11/15/2025
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Expo ImagePickerA library that provides access to the system's UI for selecting images and videos from the phone's library or taking a photo with the camera.
Android
iOS
Web
Bundled version:
~16.1.4
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expo-image-picker provides access to the system's UI for selecting images and videos from the phone's library or taking a photo with the camera.
Terminal
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- npx expo install expo-image-picker
If you are installing this in an existing React Native app
, make sure to install expo
in your project.
iOS
On iOS, when an image (usually of a higher resolution
) is picked from the camera roll, the result of the cropped image gives the wrong value for the cropped rectangle in some cases. Unfortunately, this issue is with the underlying UIImagePickerController due to a bug in the closed-source tools built into iOS.
You can configure expo-image-picker using its built-in config plugin
if you use config plugins in your project (Continuous Native Generation (CNG)
). The plugin allows you to configure various properties that cannot be set at runtime and require building a new app binary to take effect. If your app does not use CNG, then you'll need to manually configure the library.
app.json
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{ "expo": { "plugins": [ [ "expo-image-picker", { "photosPermission": "The app accesses your photos to let you share them with your friends." } ] ] } }
| Name | Default | Description |
| --- | --- | --- |
| photosPermission | "Allow $(PRODUCT_NAME) to access your photos" | Only for: <br><br>iOS<br><br> <br><br>A string to set the NSPhotoLibraryUsageDescription permission message. |
| cameraPermission | "Allow $(PRODUCT_NAME) to access your camera" | Only for: <br><br>iOS<br><br> <br><br>A string to set the NSCameraUsageDescription permission message. |
| microphonePermission | "Allow $(PRODUCT_NAME) to access your microphone" | Only for: <br><br>iOS<br><br> <br><br>A string to set the NSMicrophoneUsageDescription permission message. |
Are you using this library in an existing React Native app?
If you're not using Continuous Native Generation (CNG
) or you're using a native ios project manually, then you need to add NSPhotoLibraryUsageDescription, NSCameraUsageDescription, and NSMicrophoneUsageDescription keys to your ios/[app]/Info.plist:
Info.plist
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<key>NSPhotoLibraryUsageDescription</key> <string>Give $(PRODUCT_NAME) permission to save photos</string> <key>NSCameraUsageDescription</key> <string>Give $(PRODUCT_NAME) permission to access your camera</string> <key>NSMicrophoneUsageDescription</key> <string>Give $(PRODUCT_NAME) permission to use your microphone</string>
Image Picker
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Open in Snack
import { useState } from 'react'; import { Button, Image, View, StyleSheet } from 'react-native'; import * as ImagePicker from 'expo-image-picker'; export default function ImagePickerExample() { const [image, setImage] = useState<string | null>(null); const pickImage = async () => { // No permissions request is necessary for launching the image library let result = await ImagePicker.launchImageLibraryAsync({ mediaTypes: ['images', 'videos'], allowsEditing: true, aspect: [4, 3], quality: 1, }); console.log(result); if (!result.canceled) { setImage(result.assets[0].uri); } }; return ( <View style={styles.container}> <Button title="Pick an image from camera roll" onPress={pickImage} /> {image && <Image source={{ uri: image }} style={styles.image} />} </View> ); } const styles = StyleSheet.create({ container: { flex: 1, alignItems: 'center', justifyContent: 'center', }, image: { width: 200, height: 200, }, });
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When you run this example and pick an image, you will see the image that you picked show up in your app, and a similar log will be shown in the console:
{ "assets": [ { "assetId": "C166F9F5-B5FE-4501-9531", "base64": null, "duration": null, "exif": null, "fileName": "IMG.HEIC", "fileSize": 6018901, "height": 3025, "type": "image", "uri": "file:///data/user/0/host.exp.exponent/cache/cropped1814158652.jpg" "width": 3024 } ], "canceled": false }
AWS storage example
An example of how to use AWS storage can be found in with-aws-storage-upload.
See Amplify documentation guide to set up your project correctly.
See Using Firebase guide to set up your project correctly.
import * as ImagePicker from 'expo-image-picker';
useCameraPermissions(options)| Parameter | Type |
| --- | --- |
| options(optional) | PermissionHookOptions<object> |
Check or request permissions to access the camera. This uses both requestCameraPermissionsAsync and getCameraPermissionsAsync to interact with the permissions.
Returns:
[null | PermissionResponse, RequestPermissionMethod<PermissionResponse>, GetPermissionMethod<PermissionResponse>]
Example
const [status, requestPermission] = ImagePicker.useCameraPermissions();
useMediaLibraryPermissions(options)| Parameter | Type |
| --- | --- |
| options(optional) | PermissionHookOptions<{ writeOnly: boolean }> |
Check or request permissions to access the media library. This uses both requestMediaLibraryPermissionsAsync and getMediaLibraryPermissionsAsync to interact with the permissions.
Returns:
[null | [MediaLibraryPermissionResponse](https://docs.expo.dev/versions/v53.0.0/sdk/imagepicker#medialibrarypermissionresponse) , RequestPermissionMethod<[MediaLibraryPermissionResponse](https://docs.expo.dev/versions/v53.0.0/sdk/imagepicker#medialibrarypermissionresponse) >, GetPermissionMethod<[MediaLibraryPermissionResponse](https://docs.expo.dev/versions/v53.0.0/sdk/imagepicker#medialibrarypermissionresponse) >]
Example
const [status, requestPermission] = ImagePicker.useMediaLibraryPermissions();
ImagePicker.getCameraPermissionsAsync()Checks user's permissions for accessing camera.
Returns:
[Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise) <[CameraPermissionResponse](https://docs.expo.dev/versions/v53.0.0/sdk/imagepicker#camerapermissionresponse) >
A promise that fulfills with an object of type CameraPermissionResponse .
ImagePicker.getMediaLibraryPermissionsAsync(writeOnly)| Parameter | Type | Description |
| --- | --- | --- |
| writeOnly(optional) | boolean | Whether to request write or read and write permissions. Defaults to false<br><br>Default:false |
Checks user's permissions for accessing photos.
Returns:
[Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise) <[MediaLibraryPermissionResponse](https://docs.expo.dev/versions/v53.0.0/sdk/imagepicker#medialibrarypermissionresponse) >
A promise that fulfills with an object of type MediaLibraryPermissionResponse .
ImagePicker.getPendingResultAsync()Android system sometimes kills the MainActivity after the ImagePicker finishes. When this happens, we lose the data selected using the ImagePicker. However, you can retrieve the lost data by calling getPendingResultAsync. You can test this functionality by turning on Don't keep activities in the developer options.
Returns:
[Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise) <[ImagePickerResult](https://docs.expo.dev/versions/v53.0.0/sdk/imagepicker#imagepickerresult) | [ImagePickerErrorResult](https://docs.expo.dev/versions/v53.0.0/sdk/imagepicker#imagepickererrorresult) | null>
ImagePicker.launchImageLibraryAsync or ImagePicker.launchCameraAsync if the ImagePicker finished successfully. Otherwise, an object of type ImagePickerErrorResult
.nullImagePicker.launchCameraAsync(options)| Parameter | Type | Description |
| --- | --- | --- |
| options(optional) | [ImagePickerOptions](https://docs.expo.dev/versions/v53.0.0/sdk/imagepicker#imagepickeroptions) | An ImagePickerOptions object.<br><br>Default:{} |
Display the system UI for taking a photo with the camera. Requires Permissions.CAMERA. On Android and iOS 10 Permissions.CAMERA_ROLL is also required. On mobile web, this must be called immediately in a user interaction like a button press, otherwise the browser will block the request without a warning.
Note: Make sure that you handle
MainActivitydestruction on Android. See ImagePicker.getPendingResultAsync . Notes for Web: The system UI can only be shown after user activation (e.g. aButtonpress). Therefore, callinglaunchCameraAsyncincomponentDidMount, for example, will not work as intended. Thecancelledevent will not be returned in the browser due to platform restrictions and inconsistencies across browsers.
Returns:
[Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise) <[ImagePickerResult](https://docs.expo.dev/versions/v53.0.0/sdk/imagepicker#imagepickerresult) >
A promise that resolves to an object with canceled and assets fields. When the user canceled the action the assets is always null, otherwise it's an array of the selected media assets which have a form of ImagePickerAsset
.
ImagePicker.launchImageLibraryAsync(options)| Parameter | Type | Description |
| --- | --- | --- |
| options(optional) | [ImagePickerOptions](https://docs.expo.dev/versions/v53.0.0/sdk/imagepicker#imagepickeroptions) | An object extended by ImagePickerOptions<br>.<br><br>Default:{} |
Display the system UI for choosing an image or a video from the phone's library. Requires Permissions.MEDIA_LIBRARY on iOS 10 only. On mobile web, this must be called immediately in a user interaction like a button press, otherwise the browser will block the request without a warning.
Animated GIFs support: On Android, if the selected image is an animated GIF, the result image will be an animated GIF too if and only if quality is explicitly set to 1.0 and allowsEditing is set to false. Otherwise compression and/or cropper will pick the first frame of the GIF and return it as the result (on Android the result will be a PNG). On iOS, both quality and cropping are supported.
Notes for Web: The system UI can only be shown after user activation (e.g. a
Buttonpress). Therefore, callinglaunchImageLibraryAsyncincomponentDidMount, for example, will not work as intended. Thecancelledevent will not be returned in the browser due to platform restrictions and inconsistencies across browsers.
Returns:
[Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise) <[ImagePickerResult](https://docs.expo.dev/versions/v53.0.0/sdk/imagepicker#imagepickerresult) >
A promise that resolves to an object with canceled and assets fields. When the user canceled the action the assets is always null, otherwise it's an array of the selected media assets which have a form of ImagePickerAsset
.
ImagePicker.requestCameraPermissionsAsync()Asks the user to grant permissions for accessing camera. This does nothing on web because the browser camera is not used.
Returns:
[Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise) <[CameraPermissionResponse](https://docs.expo.dev/versions/v53.0.0/sdk/imagepicker#camerapermissionresponse) >
A promise that fulfills with an object of type CameraPermissionResponse .
ImagePicker.requestMediaLibraryPermissionsAsync(writeOnly)| Parameter | Type | Description |
| --- | --- | --- |
| writeOnly(optional) | boolean | Whether to request write or read and write permissions. Defaults to false<br><br>Default:false |
Asks the user to grant permissions for accessing user's photo. This method does nothing on web.
Returns:
[Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise) <[MediaLibraryPermissionResponse](https://docs.expo.dev/versions/v53.0.0/sdk/imagepicker#medialibrarypermissionresponse) >
A promise that fulfills with an object of type MediaLibraryPermissionResponse .
CameraPermissionResponseType: PermissionResponse
Alias for PermissionResponse type exported by expo-modules-core.
DefaultTabOnly for:
Android
Literal Type: string
The default tab with which the image picker will be opened.
'photos' - the photos/videos tab will be opened.'albums' - the albums tab will be opened.Acceptable values are: 'photos' | 'albums'
ImagePickerAssetRepresents an asset (image or video) returned by the image picker or camera.
| Property | Type | Description |
| --- | --- | --- |
| assetId(optional) | string \| null | Only for: <br><br>Android<br><br>iOS<br><br> <br><br>The unique ID that represents the picked image or video, if picked from the library. It can be used by expo-media-library<br> to manage the picked asset.<br><br>> This might be null when the ID is unavailable or the user gave limited permission to access the media library. On Android, the ID is unavailable when the user selects a photo by directly browsing file system. |
| base64(optional) | string \| null | When the base64 option is truthy, it is a Base64-encoded string of the selected image's JPEG data, otherwise null. If you prepend this with 'data:image/jpeg;base64,' to create a data URI, you can use it as the source of an Image element; for example:<br><br><Image source={{ uri: 'data:image/jpeg;base64,' + asset.base64 }} style={{ width: 200, height: 200 }} /> |
| duration(optional) | number \| null | Length of the video in milliseconds or null if the asset is not a video. |
| exif(optional) | Record<string, any> \| null | Only for: <br><br>Android<br><br>iOS<br><br> <br><br>The exif field is included if the exif option is truthy, and is an object containing the image's EXIF data. The names of this object's properties are EXIF tags and the values are the respective EXIF values for those tags. |
| file(optional) | [File](https://docs.expo.dev/versions/v53.0.0/sdk/imagepicker#file) | Only for: <br><br>Web<br><br> <br><br>The web File object containing the selected media. This property is web-only and can be used to upload to a server with FormData. |
| fileName(optional) | string \| null | Preferred filename to use when saving this item. This might be null when the name is unavailable or user gave limited permission to access the media library. |
| fileSize(optional) | number | File size of the picked image or video, in bytes. |
| height | number | Height of the image or video. |
| mimeType(optional) | string | The MIME type of the selected asset or null if could not be determined. |
| pairedVideoAsset(optional) | [ImagePickerAsset](https://docs.expo.dev/versions/v53.0.0/sdk/imagepicker#imagepickerasset) \| null | Only for: <br><br>iOS<br><br> <br><br>Contains information about the video paired with the image file. This property is only set when livePhotos media type was present in the mediaTypes array when launching the picker and a live photo was selected. |
| type(optional) | 'image' \| 'video' \| 'livePhoto' \| 'pairedVideo' | The type of the asset.<br><br>* 'image' - for images.<br>* 'video' - for videos.<br>* 'livePhoto' - for live photos. (iOS only)<br>* 'pairedVideo' - for videos paired with photos, which can be combined to create a live photo. (iOS only) |
| uri | string | URI to the local image or video file (usable as the source of an Image element, in the case of an image) and width and height specify the dimensions of the media. |
| width | number | Width of the image or video. |
ImagePickerCanceledResultType representing canceled pick result.
| Property | Type | Description |
| --- | --- | --- |
| assets | null | null signifying that the request was canceled. |
| canceled | true | Boolean flag set to true showing that the request was canceled. |
ImagePickerErrorResult| Property | Type | Description |
| --- | --- | --- |
| code | string | The error code. |
| exception(optional) | string | The exception which caused the error. |
| message | string | The error message. |
ImagePickerOptions| Property | Type | Description |
| --- | --- | --- |
| allowsEditing(optional) | boolean | Only for: <br><br>Android<br><br>iOS<br><br> <br><br>Whether to show a UI to edit the image after it is picked. On Android the user can crop and rotate the image and on iOS simply crop it.<br><br>> * Cropping multiple images is not supported - this option is mutually exclusive with allowsMultipleSelection.<br>> * On iOS, this option is ignored if allowsMultipleSelection is enabled.<br>> * On iOS cropping a .bmp image will convert it to .png.<br><br>Default:false |
| allowsMultipleSelection(optional) | boolean | Only for: <br><br>Android<br><br>iOS 14+<br><br>Web<br><br> <br><br>Whether or not to allow selecting multiple media files at once.<br><br>> Cropping multiple images is not supported - this option is mutually exclusive with allowsEditing. If this option is enabled, then allowsEditing is ignored.<br><br>Default:false |
| aspect(optional) | [number, number] | An array with two entries [x, y] specifying the aspect ratio to maintain if the user is allowed to edit the image (by passing allowsEditing: true). This is only applicable on Android, since on iOS the crop rectangle is always a square. |
| base64(optional) | boolean | Whether to also include the image data in Base64 format. |
| cameraType(optional) | [CameraType](https://docs.expo.dev/versions/v53.0.0/sdk/imagepicker#cameratype) | Selects the camera-facing type. The CameraType enum provides two options: front for the front-facing camera and back for the back-facing camera.<br><br>* On Android, the behavior of this option may vary based on the camera app installed on the device.<br>* On Web, if this option is not provided, use "camera" as the default value of internal input element for backwards compatibility.<br><br>Default:CameraType.back |
| defaultTab(optional) | [DefaultTab](https://docs.expo.dev/versions/v53.0.0/sdk/imagepicker#defaulttab) | Only for: <br><br>Android<br><br> <br><br>Choose the default tab with which the image picker will be opened.<br><br>Default:'photos' |
| exif(optional) | boolean | Only for: <br><br>Android<br><br>iOS<br><br> <br><br>Whether to also include the EXIF data for the image. On iOS the EXIF data does not include GPS tags in the camera case. |
| legacy(optional) | boolean | Only for: <br><br>Android<br><br> <br><br>Uses the legacy image picker on Android. This will allow media to be selected from outside the users photo library.<br><br>Default:false |
| mediaTypes(optional) | [MediaType](https://docs.expo.dev/versions/v53.0.0/sdk/imagepicker#mediatype) \| [MediaType[]](https://docs.expo.dev/versions/v53.0.0/sdk/imagepicker#mediatype) \| [MediaTypeOptions](https://docs.expo.dev/versions/v53.0.0/sdk/imagepicker#mediatypeoptions) | Choose what type of media to pick.<br><br>Default:'images' |
| orderedSelection(optional) | boolean | Only for: <br><br>iOS 15+<br><br> <br><br>Whether to display number badges when assets are selected. The badges are numbered in selection order. Assets are then returned in the exact same order they were selected.<br><br>> Assets should be returned in the selection order regardless of this option, but there is no guarantee that it is always true when this option is disabled.<br><br>Default:false |
| preferredAssetRepresentationMode(optional) | [UIImagePickerPreferredAssetRepresentationMode](https://docs.expo.dev/versions/v53.0.0/sdk/imagepicker#uiimagepickerpreferredassetrepresentationmode) | Only for: <br><br>iOS 14+<br><br> <br><br>Choose preferred asset representation mode<br> to use when loading assets.<br><br>Default:ImagePicker.UIImagePickerPreferredAssetRepresentationMode.Automatic |
| presentationStyle(optional) | [UIImagePickerPresentationStyle](https://docs.expo.dev/versions/v53.0.0/sdk/imagepicker#uiimagepickerpresentationstyle) | Only for: <br><br>iOS<br><br> <br><br>Choose presentation style<br> to customize view during taking photo/video.<br><br>Default:ImagePicker.UIImagePickerPresentationStyle.Automatic |
| quality(optional) | number | Only for: <br><br>Android<br><br>iOS<br><br> <br><br>Specify the quality of compression, from 0 to 1. 0 means compress for small size, 1 means compress for maximum quality.<br><br>> Note: If the selected image has been compressed before, the size of the output file may be bigger than the size of the original image.<br><br>> Note: On iOS, if a .bmp or .png image is selected from the library, this option is ignored.<br><br>Default:1.0 |
| selectionLimit(optional) | number | Only for: <br><br>Android<br><br>iOS 14+<br><br> <br><br>The maximum number of items that user can select. Applicable when allowsMultipleSelection is enabled. Setting the value to 0 sets the selection limit to the maximum that the system supports.<br><br>Default:0 |
| videoExportPreset(optional) | [VideoExportPreset](https://docs.expo.dev/versions/v53.0.0/sdk/imagepicker#videoexportpreset) | > Deprecated See videoExportPreset<br>> in Apple documentation.<br><br>Only for: <br><br>iOS 11+<br><br> <br><br>Specify preset which will be used to compress selected video.<br><br>Default:ImagePicker.VideoExportPreset.Passthrough |
| videoMaxDuration(optional) | number | Maximum duration, in seconds, for video recording. Setting this to 0 disables the limit. Defaults to 0 (no limit).<br><br>* On iOS, when allowsEditing is set to true, maximum duration is limited to 10 minutes. This limit is applied automatically, if 0 or no value is specified.<br>* On Android, effect of this option depends on support of installed camera app.<br>* On Web this option has no effect - the limit is browser-dependant. |
| videoQuality(optional) | [UIImagePickerControllerQualityType](https://docs.expo.dev/versions/v53.0.0/sdk/imagepicker#uiimagepickercontrollerqualitytype) | Only for: <br><br>iOS<br><br> <br><br>Specify the quality of recorded videos. Defaults to the highest quality available for the device.<br><br>Default:ImagePicker.UIImagePickerControllerQualityType.High |
ImagePickerResultLiteral Type: union
Type representing successful and canceled pick result.
Acceptable values are: [ImagePickerSuccessResult](https://docs.expo.dev/versions/v53.0.0/sdk/imagepicker#imagepickersuccessresult) | [ImagePickerCanceledResult](https://docs.expo.dev/versions/v53.0.0/sdk/imagepicker#imagepickercanceledresult)
ImagePickerSuccessResultType representing successful pick result.
| Property | Type | Description |
| --- | --- | --- |
| assets | [ImagePickerAsset[]](https://docs.expo.dev/versions/v53.0.0/sdk/imagepicker#imagepickerasset) | An array of picked assets. |
| canceled | false | Boolean flag set to false showing that the request was successful. |
MediaLibraryPermissionResponseExtends PermissionResponse type exported by expo-modules-core, containing additional iOS-specific field.
Type: PermissionResponse extended by:
| Property | Type | Description |
| --- | --- | --- |
| accessPrivileges(optional) | 'all' \| 'limited' \| 'none' | Indicates if your app has access to the whole or only part of the photo library. Possible values are:<br><br>* 'all' if the user granted your app access to the whole photo library<br>* 'limited' if the user granted your app access only to selected photos (only available on Android API 34+ and iOS 14.0+)<br>* 'none' if user denied or hasn't yet granted the permission |
MediaTypeLiteral Type: string
Media types that can be picked by the image picker.
'images' - for images.'videos' - for videos.'livePhotos' - for live photos (iOS only).When the
livePhotostype is added to the media types array and a live photo is selected, the resultingImagePickerAssetwill contain an unaltered image and thepairedVideoAssetfield will contain a video asset paired with the image. This option will be ignored when theallowsEditingoption is enabled. Due to platform limitations live photos are returned at original quality, regardless of thequalityoption.
When on Android or Web
livePhotostype passed as a media type will be ignored.
Acceptable values are: 'images' | 'videos' | 'livePhotos'
PermissionExpirationLiteral Type: union
Permission expiration time. Currently, all permissions are granted permanently.
Acceptable values are: 'never' | number
PermissionHookOptionsLiteral Type: union
Acceptable values are: PermissionHookBehavior | Options
PermissionResponseAn object obtained by permissions get and request functions.
| Property | Type | Description |
| --- | --- | --- |
| canAskAgain | boolean | Indicates if user can be asked again for specific permission. If not, one should be directed to the Settings app in order to enable/disable the permission. |
| expires | [PermissionExpiration](https://docs.expo.dev/versions/v53.0.0/sdk/imagepicker#permissionexpiration) | Determines time when the permission expires. |
| granted | boolean | A convenience boolean that indicates if the permission is granted. |
| status | [PermissionStatus](https://docs.expo.dev/versions/v53.0.0/sdk/imagepicker#permissionstatus) | Determines the status of the permission. |
CameraTypebackCameraType.back = "back"
Back/rear camera.
frontCameraType.front = "front"
Front camera
Deprecated To set media types available in the image picker use an array of
MediaTypeinstead.
MediaTypeOptionsAllMediaTypeOptions.All = "All"
Images and videos.
ImagesMediaTypeOptions.Images = "Images"
Only images.
VideosMediaTypeOptions.Videos = "Videos"
Only videos.
PermissionStatusDENIEDPermissionStatus.DENIED = "denied"
User has denied the permission.
GRANTEDPermissionStatus.GRANTED = "granted"
User has granted the permission.
UNDETERMINEDPermissionStatus.UNDETERMINED = "undetermined"
User hasn't granted or denied the permission yet.
UIImagePickerControllerQualityTypeHighUIImagePickerControllerQualityType.High = 0
Highest available resolution.
MediumUIImagePickerControllerQualityType.Medium = 1
Depends on the device.
LowUIImagePickerControllerQualityType.Low = 2
Depends on the device.
VGA640x480UIImagePickerControllerQualityType.VGA640x480 = 3
640 × 480
IFrame1280x720UIImagePickerControllerQualityType.IFrame1280x720 = 4
1280 × 720
IFrame960x540UIImagePickerControllerQualityType.IFrame960x540 = 5
960 × 540
UIImagePickerPreferredAssetRepresentationModeOnly for:
iOS
Picker preferred asset representation mode. Its values are directly mapped to the PHPickerConfigurationAssetRepresentationMode
.
AutomaticUIImagePickerPreferredAssetRepresentationMode.Automatic = "automatic"
A mode that indicates that the system chooses the appropriate asset representation.
CompatibleUIImagePickerPreferredAssetRepresentationMode.Compatible = "compatible"
A mode that uses the most compatible asset representation.
CurrentUIImagePickerPreferredAssetRepresentationMode.Current = "current"
A mode that uses the current representation to avoid transcoding, if possible.
UIImagePickerPresentationStyleOnly for:
iOS
Picker presentation style. Its values are directly mapped to the UIModalPresentationStyle
.
AUTOMATICOnly for:
iOS
UIImagePickerPresentationStyle.AUTOMATIC = "automatic"
The default presentation style chosen by the system. On older iOS versions, falls back to WebBrowserPresentationStyle.FullScreen.
CURRENT_CONTEXTUIImagePickerPresentationStyle.CURRENT_CONTEXT = "currentContext"
A presentation style where the picker is displayed over the app's content.
FORM_SHEETUIImagePickerPresentationStyle.FORM_SHEET = "formSheet"
A presentation style that displays the picker centered in the screen.
FULL_SCREENUIImagePickerPresentationStyle.FULL_SCREEN = "fullScreen"
A presentation style in which the presented picker covers the screen.
OVER_CURRENT_CONTEXTUIImagePickerPresentationStyle.OVER_CURRENT_CONTEXT = "overCurrentContext"
A presentation style where the picker is displayed over the app's content.
OVER_FULL_SCREENUIImagePickerPresentationStyle.OVER_FULL_SCREEN = "overFullScreen"
A presentation style in which the picker view covers the screen.
PAGE_SHEETUIImagePickerPresentationStyle.PAGE_SHEET = "pageSheet"
A presentation style that partially covers the underlying content.
POPOVERUIImagePickerPresentationStyle.POPOVER = "popover"
A presentation style where the picker is displayed in a popover view.
VideoExportPresetPassthroughVideoExportPreset.Passthrough = 0
Resolution: Unchanged • Video compression: None • Audio compression: None
LowQualityVideoExportPreset.LowQuality = 1
Resolution: Depends on the device • Video compression: H.264 • Audio compression: AAC
MediumQualityVideoExportPreset.MediumQuality = 2
Resolution: Depends on the device • Video compression: H.264 • Audio compression: AAC
HighestQualityVideoExportPreset.HighestQuality = 3
Resolution: Depends on the device • Video compression: H.264 • Audio compression: AAC
H264_640x480VideoExportPreset.H264_640x480 = 4
Resolution: 640 × 480 • Video compression: H.264 • Audio compression: AAC
H264_960x540VideoExportPreset.H264_960x540 = 5
Resolution: 960 × 540 • Video compression: H.264 • Audio compression: AAC
H264_1280x720VideoExportPreset.H264_1280x720 = 6
Resolution: 1280 × 720 • Video compression: H.264 • Audio compression: AAC
H264_1920x1080VideoExportPreset.H264_1920x1080 = 7
Resolution: 1920 × 1080 • Video compression: H.264 • Audio compression: AAC
H264_3840x2160VideoExportPreset.H264_3840x2160 = 8
Resolution: 3840 × 2160 • Video compression: H.264 • Audio compression: AAC
HEVC_1920x1080VideoExportPreset.HEVC_1920x1080 = 9
Resolution: 1920 × 1080 • Video compression: HEVC • Audio compression: AAC
HEVC_3840x2160VideoExportPreset.HEVC_3840x2160 = 10
Resolution: 3840 × 2160 • Video compression: HEVC • Audio compression: AAC
The following permissions are added automatically through the library's AndroidManifest.xml.
| Android Permission | Description |
| --- | --- |
| CAMERA | Required to be able to access the camera device. |
| READ_EXTERNAL_STORAGE | Allows an application to read from external storage. |
| WRITE_EXTERNAL_STORAGE | Allows an application to write to external storage. |
The following usage description keys are used by the APIs in this library.
| Info.plist Key | Description |
| --- | --- |
| NSMicrophoneUsageDescription | A message that tells the user why the app is requesting access to the device’s microphone. |
| NSPhotoLibraryUsageDescription | A message that tells the user why the app is requesting access to the user’s photo library. |
| NSCameraUsageDescription | A message that tells the user why the app is requesting access to the device’s camera. |