Android Tv Leanback Best Place To Load Icon Images To Reduce Memory Footprint

I have made an app for Android tv using Leanback i am using the BrowseSupportFragment and my items are rendered by class CardPresenter which implements Presenter class. I am loadin

Solution 1:

onBindViewHolder is the correct place to trigger the image loading. When your layout is inflated, you should see onBindViewHolder called for all visible items, sometimes with a buffer for the next item depending on the cutoff. If what you're seeing is onBindViewHolder being called substantially more times than makes sense (e.g., you see 20 items on screen but it's called 100 times), then you should make sure that your layouts have a set size.

For example, if you're displaying cards and the width of a card isn't set until after the image is loaded, your width may effectively be 0 so every card in that row is bound, triggering your image requests. ImageCardView has the setMainImageDimensions helper method to set the LayoutParams, so you can call that either in onCreateViewHolder (if the size is the same for all items) or in onBindViewHolder (if the size depends on the item).