LruBitmapCache

LruBitmapCache.kt

import android.graphics.Bitmap
import androidx.collection.LruCache

val runtimeMemoryChunkInBytes: Int
    get() = (Runtime.getRuntime().maxMemory() / 8).toInt()

/**
 * https://developer.android.com/topic/performance/graphics/cache-bitmap
 */
class LruBitmapCache : LruCache<String, Bitmap>(runtimeMemoryChunkInBytes) {

    init {
        Log.i("maxSize=${maxSize()}")
    }

    override fun entryRemoved(evicted: Boolean, key: String, oldValue: Bitmap, newValue: Bitmap?) {
        super.entryRemoved(evicted, key, oldValue, newValue)

        if (evicted && !oldValue.isRecycled)
            oldValue.recycle()
    }

    override fun sizeOf(key: String, value: Bitmap): Int = value.allocationByteCount
}

line 19 should be:
if (evicted && !oldValue.isRecycled)