added callback for photo on load and failded; progressbar;

app/src/main/java/com/biganto/visual/roompark/conductor/dialogs/change_handler/PhotoDialogController.kt

 package com.biganto.visual.roompark.conductor.dialogs.change_handler
 
 import android.content.pm.ActivityInfo
+import android.graphics.Bitmap
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import android.widget.ProgressBar
 import androidx.annotation.LayoutRes
 import androidx.core.os.bundleOf
 import androidx.recyclerview.widget.RecyclerView
 import com.biganto.visual.roompark.R
 import com.bluelinelabs.conductor.Controller
 import com.bumptech.glide.Glide
+import com.bumptech.glide.load.DataSource
 import com.bumptech.glide.load.engine.DiskCacheStrategy
+import com.bumptech.glide.load.engine.GlideException
+import com.bumptech.glide.request.RequestListener
+import com.bumptech.glide.request.target.Target
 import com.github.chrisbanes.photoview.PhotoView
+import com.google.android.material.snackbar.Snackbar
 
 
 /**
@@ -33,17 +40,41 @@ class PhotoDialogController : Controller {
     override fun onCreateView(inflater: LayoutInflater, container: ViewGroup): View {
         val view = inflater.inflate(getLayoutId(), container, false)
 
+        val progress = view.findViewById<ProgressBar>(R.id.photo_load_progress_bar)
+        progress.visibility = View.VISIBLE
+
         activity?.requestedOrientation = ActivityInfo.SCREEN_ORIENTATION_USER_LANDSCAPE
 
         args.getString(PHOTO_URL_KEY)?.let {
             val photoView = view.findViewById<PhotoView>(R.id.photo_frame)
             Glide.with(photoView)
+                .asBitmap()
                 .load(it)
-//                .thumbnail(model.resolutionList.lowelest()?.let { thumb ->
-//                    Glide.with(photoPreview).load(thumb.url).diskCacheStrategy(DiskCacheStrategy.ALL)
-//                        .centerCrop()
-//                })
                 .diskCacheStrategy(DiskCacheStrategy.ALL)
+                .addListener(object :RequestListener<Bitmap>{
+                    override fun onLoadFailed(
+                        e: GlideException?,
+                        model: Any?,
+                        target: Target<Bitmap>?,
+                        isFirstResource: Boolean
+                    ): Boolean {
+                        progress.visibility = View.INVISIBLE
+                        Snackbar.make(view,"Ошибка при загрузке!",Snackbar.LENGTH_SHORT)
+                        return  false
+
+                    }
+
+                    override fun onResourceReady(
+                        resource: Bitmap?,
+                        model: Any?,
+                        target: Target<Bitmap>?,
+                        dataSource: DataSource?,
+                        isFirstResource: Boolean
+                    ): Boolean {
+                        progress.visibility = View.INVISIBLE
+                        return  false
+                    }
+                })
                 .into(photoView)
         }
         return view

app/src/main/res/layout/photo_viewer.xml

@@ -9,4 +9,13 @@
         android:layout_width="match_parent"
         android:layout_height="match_parent" />
 
+    <ProgressBar
+        android:id="@+id/photo_load_progress_bar"
+        style="?android:attr/progressBarStyle"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_centerInParent="true"
+        android:indeterminate="true"
+        android:layout_gravity="center" />
+
 </RelativeLayout>
\ No newline at end of file