Android loading list of byte array images

Question

I have a possible issue (OOM) with loading list of images from DB. In my database, images are stored as BLOB. Those images are fetched and displayed in Fragment using RecyclerView. Images are loaded using Glide and I'm using GridLayoutManager to display 3 images in one row(picture attached):

Glide
.with(context)
.load(image[])
.asBitmap()
.override(dimensionPixelSize)
.dontAnimate()
.centerCrop()
.placeholder(R.drawable.image)
.into(imageView);

GridLayout

When images are fetched from DB, I'm storing it in singleton class and then using this List of images when creating Adapter etc.

class ImageData {
    private List<ImageModel> images;

    private static final ImageDate instance = new ImageData();

    private ImageData() {
    }

    public static ImageData getInstance() {
        return instance;
    }

    public void setImages(List<ImageModel> images) {
        this.images = images;
    }

    public List<ImageModel> getImages() {
        return images;
    }

}

ImageModel class has byte[] for actual image and long timestamp fields. Also, there is possibility to show full screen image onClick - in that case I'm creating DialogFragment with viewPager and ViewPagerAdapter is using the same list from singleton class. The actual problem is that sometimes I can get OOM. This happens after 15/20min. of using the app and several times of closing and opening the app. I know that Glide has memory and disk cache strategy, for example I tried with .skipMemoryCache(true) or diskCacheStrategy(DiskCacheStrategy.SOURCE) but with no success. Can you help me with some suggestion? If you need I can add some more code but basically I'm using ViewHolder pattern with RecyclerView and this Glide code for loading images is inside ViewHolder class.

Answer 1

byte array are restricted by memory available to it on device. If you are creating byte array and not destroying it, you will run out of memory. I hope this helps.