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Keep strong references to Picasso notification icon loading targets

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Before the Target would sometimes be garbage collected before being called with the loaded channel icon, since Picasso holds weak references to targets. This meant that sometimes a new streams notification  would not be shown, because the lambda that should have shown it had already been garbage collected.
This commit is contained in:
Stypox 2022-07-22 15:06:19 +02:00 • committed by litetex
parent 1e964a36a9
commit 52dbfdee00
2 changed files with 32 additions and 27 deletions
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31
app/src/main/java/org/schabi/newpipe/local/feed/notifications/NotificationHelper.kt
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@ -4,6 +4,8 @@ import android.app.NotificationManager
import android.app.PendingIntent
import android.content.Context
import android.content.Intent
import android.graphics.Bitmap
import android.graphics.drawable.Drawable
import android.net.Uri
import android.os.Build
import android.provider.Settings
@ -11,6 +13,8 @@ import androidx.core.app.NotificationCompat
import androidx.core.app.NotificationManagerCompat
import androidx.core.content.ContextCompat
import androidx.preference.PreferenceManager
import com.squareup.picasso.Picasso
import com.squareup.picasso.Target
import org.schabi.newpipe.R
import org.schabi.newpipe.extractor.stream.StreamInfoItem
import org.schabi.newpipe.local.feed.service.FeedUpdateInfo
@ -27,6 +31,8 @@ class NotificationHelper(val context: Context) {
Context.NOTIFICATION_SERVICE
) as NotificationManager
private val iconLoadingTargets = ArrayList<Target>()
/**
* Show a notification about new streams from a single channel.
* Opening the notification will open the corresponding channel page.
@ -77,10 +83,29 @@ class NotificationHelper(val context: Context) {
)
)
PicassoHelper.loadNotificationIcon(data.avatarUrl) { bitmap ->
bitmap?.let { builder.setLargeIcon(it) } // set only if != null
manager.notify(data.pseudoId, builder.build())
// a Target is like a listener for image loading events
val target = object : Target {
override fun onBitmapLoaded(bitmap: Bitmap, from: Picasso.LoadedFrom) {
builder.setLargeIcon(bitmap) // set only if there is actually one
manager.notify(data.pseudoId, builder.build())
iconLoadingTargets.remove(this) // allow it to be garbage-collected
}
override fun onBitmapFailed(e: Exception, errorDrawable: Drawable) {
manager.notify(data.pseudoId, builder.build())
iconLoadingTargets.remove(this) // allow it to be garbage-collected
}
override fun onPrepareLoad(placeHolderDrawable: Drawable) {
// Nothing to do
}
}
// add the target to the list to hold a strong reference and prevent it from being garbage
// collected, since Picasso only holds weak references to targets
iconLoadingTargets.add(target)
PicassoHelper.loadNotificationIcon(data.avatarUrl).into(target)
}
companion object {