com.facebook.react.modules.camera

Class CameraRollManager

java.lang.Object

com.facebook.react.bridge.BaseJavaModule

com.facebook.react.bridge.ReactContextBaseJavaModule

com.facebook.react.modules.camera.CameraRollManager

All Implemented Interfaces:

NativeModule

public class CameraRollManager
extends ReactContextBaseJavaModule

NativeModule that allows JS to interact with the photos on the device (i.e. MediaStore.Images).

Nested Class Summary

Nested classes/interfaces inherited from interface com.facebook.react.bridge.NativeModule

NativeModule.NativeMethod

Field Summary

Fields

Modifier and Type	Field and Description
static boolean	IS_JELLY_BEAN_OR_LATER

Fields inherited from class com.facebook.react.bridge.BaseJavaModule

METHOD_TYPE_REMOTE, METHOD_TYPE_REMOTE_ASYNC

Constructor Summary

Constructors

Constructor and Description
CameraRollManager(ReactApplicationContext reactContext)

Method Summary

Methods

Modifier and Type	Method and Description
java.util.Map<java.lang.String,java.lang.Object>	getConstants()
java.lang.String	getName()
void	getPhotos(ReadableMap params, Callback success, Callback error) Get photos from MediaStore.Images, most recent first.
void	saveImageWithTag(java.lang.String uri, Callback success, Callback error) Save an image to the gallery (i.e.

Methods inherited from class com.facebook.react.bridge.ReactContextBaseJavaModule

getCurrentActivity, getReactApplicationContext

Methods inherited from class com.facebook.react.bridge.BaseJavaModule

canOverrideExistingModule, getMethods, initialize, onCatalystInstanceDestroy, writeConstantsField

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

IS_JELLY_BEAN_OR_LATER

public static final boolean IS_JELLY_BEAN_OR_LATER

Constructor Detail

CameraRollManager

public CameraRollManager(ReactApplicationContext reactContext)

Method Detail

getName

public java.lang.String getName()

Returns:

the name of this module. This will be the name used to require() this module from javascript.

getConstants

public java.util.Map<java.lang.String,java.lang.Object> getConstants()

Overrides:

getConstants in class BaseJavaModule

Returns:

a map of constants this module exports to JS. Supports JSON types.

saveImageWithTag

public void saveImageWithTag(java.lang.String uri,
                    Callback success,
                    Callback error)

Save an image to the gallery (i.e. MediaStore.Images). This copies the original file from wherever it may be to the external storage pictures directory, so that it can be scanned by the MediaScanner.

Parameters:

uri - the file:// URI of the image to save

success - callback to be invoked on successful save to gallery; the only argument passed to this callback is the MediaStore content:// URI of the new image.

error - callback to be invoked on error (e.g. can't copy file, external storage not available etc.)

getPhotos

public void getPhotos(ReadableMap params,
             Callback success,
             Callback error)

Get photos from MediaStore.Images, most recent first.

Parameters:

params - a map containing the following keys:

• first (mandatory): a number representing the number of photos to fetch
• after (optional): a cursor that matches page_info[end_cursor] returned by a previous call to getPhotos(com.facebook.react.bridge.ReadableMap, com.facebook.react.bridge.Callback, com.facebook.react.bridge.Callback)
• groupName (optional): an album name
• mimeType (optional): restrict returned images to a specific mimetype (e.g. image/jpeg)

success - the callback to be called when the photos are loaded; for a format of the parameters passed to this callback, see getPhotosReturnChecker in CameraRoll.js

error - the callback to be called on error