裁剪点返回报异常和线框变大的问题，加个判断就可以解决了

[git516482670]

//代码路径com.lzy.imagepicker.ImageDataSource

@Override public void onLoadFinished(Loader loader, Cursor data) {

    /**修复裁剪返回没数据的BUG*/
    if (imageFolders != null && imageFolders.size() == 0) {
        imageFolders.clear();

        if (data != null) {
            ArrayList<ImageItem> allImages = new ArrayList<>();   //所有图片的集合,不分文件夹
            while (data.moveToNext()) {
                //查询数据
                String imageName = data.getString(data.getColumnIndexOrThrow(IMAGE_PROJECTION[0]));
                String imagePath = data.getString(data.getColumnIndexOrThrow(IMAGE_PROJECTION[1]));

                File file = new File(imagePath);
                if (!file.exists() || file.length() <= 0) {
                    continue;
                }

                long imageSize = data.getLong(data.getColumnIndexOrThrow(IMAGE_PROJECTION[2]));
                int imageWidth = data.getInt(data.getColumnIndexOrThrow(IMAGE_PROJECTION[3]));
                int imageHeight = data.getInt(data.getColumnIndexOrThrow(IMAGE_PROJECTION[4]));
                String imageMimeType = data.getString(data.getColumnIndexOrThrow(IMAGE_PROJECTION[5]));
                long imageAddTime = data.getLong(data.getColumnIndexOrThrow(IMAGE_PROJECTION[6]));
                //封装实体
                ImageItem imageItem = new ImageItem();
                imageItem.name = imageName;
                imageItem.path = imagePath;
                imageItem.size = imageSize;
                imageItem.width = imageWidth;
                imageItem.height = imageHeight;
                imageItem.mimeType = imageMimeType;
                imageItem.addTime = imageAddTime;
                allImages.add(imageItem);
                //根据父路径分类存放图片
                File imageFile = new File(imagePath);
                File imageParentFile = imageFile.getParentFile();
                ImageFolder imageFolder = new ImageFolder();
                imageFolder.name = imageParentFile.getName();
                imageFolder.path = imageParentFile.getAbsolutePath();

                if (!imageFolders.contains(imageFolder)) {
                    ArrayList<ImageItem> images = new ArrayList<>();
                    images.add(imageItem);
                    imageFolder.cover = imageItem;
                    imageFolder.images = images;
                    imageFolders.add(imageFolder);
                } else {
                    imageFolders.get(imageFolders.indexOf(imageFolder)).images.add(imageItem);
                }
            }
            //防止没有图片报异常
            if (data.getCount() > 0 && allImages.size() > 0) {
                //构造所有图片的集合
                ImageFolder allImagesFolder = new ImageFolder();
                allImagesFolder.name = activity.getResources().getString(R.string.ip_all_images);
                allImagesFolder.path = "/";
                allImagesFolder.cover = allImages.get(0);
                allImagesFolder.images = allImages;
                imageFolders.add(0, allImagesFolder);  //确保第一条是所有图片
            }
        }

        //回调接口，通知图片数据准备完成
        ImagePicker.getInstance().setImageFolders(imageFolders);
        loadedListener.onImagesLoaded(imageFolders);
    }
}