ImagePickerModule.java

ImagePickerModule.java

public class ImagePickerModule extends ReactContextBaseJavaModule {
    private static final int PICK_IMAGE = 1;

    private Callback pickerSuccessCallback;
    private Callback pickerCancelCallback;

    @ReactMethod
    public void openSelectDialog(ReadableMap config, Callback successCallback, Callback cancelCallback) {
        Activity currentActivity = getCurrentActivity();

        if (currentActivity == null) {
            cancelCallback.invoke("Activity doesn't exist");
            return;
        }

        pickerSuccessCallback = successCallback;
        pickerCancelCallback = cancelCallback;

        try {
            final Intent galleryIntent = new Intent();

            galleryIntent.setType("image/*");
            galleryIntent.setAction(Intent.ACTION_GET_CONTENT);

            final Intent chooserIntent = Intent.createChooser(galleryIntent, "Pick an image");

            currentActivity.startActivityForResult(chooserIntent, PICK_IMAGE);
        } catch (Exception e) {
            cancelCallback.invoke(e);
        }
    }
}