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Improve cache of drawables used for rendering location pin.

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In particular, use the Glide cache, and ensure that if an error occurs and later the avatar can be retrieved, the cache will be replaced.
Also limit cache size to 32.
Also use UserItem as a key, instead of just the userId, so that if displayName or avatarUrl change, there will be not cache hit.
This commit is contained in:
Benoit Marty 2024-02-02 15:34:51 +01:00
parent 343468717c
commit ff439546c5
1 changed files with 25 additions and 13 deletions
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38
vector/src/main/java/im/vector/app/features/home/room/detail/timeline/helper/LocationPinProvider.kt
View file

@ -19,7 +19,7 @@ package im.vector.app.features.home.room.detail.timeline.helper
import android.content.Context
import android.graphics.drawable.Drawable
import android.graphics.drawable.LayerDrawable
import androidx.annotation.ColorInt
import android.util.LruCache
import androidx.core.content.ContextCompat
import androidx.core.graphics.drawable.DrawableCompat
import com.bumptech.glide.request.target.CustomTarget
@ -30,11 +30,17 @@ import im.vector.app.core.glide.GlideApp
import im.vector.app.core.utils.DimensionConverter
import im.vector.app.features.home.AvatarRenderer
import org.matrix.android.sdk.api.session.getUserOrDefault
import org.matrix.android.sdk.api.util.MatrixItem
import org.matrix.android.sdk.api.util.toMatrixItem
import timber.log.Timber
import javax.inject.Inject
import javax.inject.Singleton
private data class CachedDrawable(
val drawable: Drawable,
val isError: Boolean,
)
@Singleton
class LocationPinProvider @Inject constructor(
private val context: Context,
@ -43,7 +49,7 @@ class LocationPinProvider @Inject constructor(
private val avatarRenderer: AvatarRenderer,
private val matrixItemColorProvider: MatrixItemColorProvider
) {
private val cache = mutableMapOf<String, Drawable>()
private val cache = LruCache<MatrixItem.UserItem, CachedDrawable>(32)
private val glideRequests by lazy {
GlideApp.with(context)
@ -60,23 +66,16 @@ class LocationPinProvider @Inject constructor(
return
}
if (cache.contains(userId)) {
callback(cache[userId]!!)
return
}
activeSessionHolder
.getActiveSession()
.getUserOrDefault(userId)
.toMatrixItem()
.let { userItem ->
val size = dimensionConverter.dpToPx(44)
val bgTintColor = matrixItemColorProvider.getColor(userItem)
avatarRenderer.render(glideRequests, userItem, object : CustomTarget<Drawable>(size, size) {
override fun onResourceReady(resource: Drawable, transition: Transition<in Drawable>?) {
Timber.d("## Location: onResourceReady")
val pinDrawable = createPinDrawable(resource, bgTintColor)
cache[userId] = pinDrawable
val pinDrawable = createPinDrawable(userItem, resource, isError = false)
callback(pinDrawable)
}
@ -87,17 +86,29 @@ class LocationPinProvider @Inject constructor(
}
override fun onLoadFailed(errorDrawable: Drawable?) {
// Note: `onLoadFailed` is also called when the user has no avatarUrl
// and the errorDrawable is actually the placeholder.
Timber.w("## Location: onLoadFailed")
errorDrawable ?: return
val pinDrawable = createPinDrawable(errorDrawable, bgTintColor)
cache[userId] = pinDrawable
val pinDrawable = createPinDrawable(userItem, errorDrawable, isError = true)
callback(pinDrawable)
}
})
}
}
private fun createPinDrawable(drawable: Drawable, @ColorInt bgTintColor: Int): Drawable {
private fun createPinDrawable(
userItem: MatrixItem.UserItem,
drawable: Drawable,
isError: Boolean,
): Drawable {
val fromCache = cache.get(userItem)
// Return the cached drawable only if it is valid, or the new drawable is again an error
if (fromCache != null && (!fromCache.isError || isError)) {
return fromCache.drawable
}
val bgTintColor = matrixItemColorProvider.getColor(userItem)
val bgUserPin = ContextCompat.getDrawable(context, R.drawable.bg_map_user_pin)!!
// use mutate on drawable to avoid sharing the color when we have multiple different user pins
DrawableCompat.setTint(bgUserPin.mutate(), bgTintColor)
@ -106,6 +117,7 @@ class LocationPinProvider @Inject constructor(
val topInset = dimensionConverter.dpToPx(4)
val bottomInset = dimensionConverter.dpToPx(8)
layerDrawable.setLayerInset(1, horizontalInset, topInset, horizontalInset, bottomInset)
cache.put(userItem, CachedDrawable(layerDrawable, isError))
return layerDrawable
}
}