courses: smoother progress grid item callback diffing (fixes #12239) (#12212)

Author: dogi

app/build.gradle

@@ -12,8 +12,8 @@ android {
         applicationId "org.ole.planet.myplanet"
         minSdk = 26
         targetSdk = 36
-        versionCode = 4985
-        versionName = "0.49.85"
+        versionCode = 4986
+        versionName = "0.49.86"
         ndkVersion = '26.3.11579264'
         vectorDrawables.useSupportLibrary = true
     }

app/src/main/java/org/ole/planet/myplanet/ui/courses/ProgressGridAdapter.kt

@@ -12,7 +12,12 @@ import org.ole.planet.myplanet.databinding.RowMyProgressGridBinding
 import org.ole.planet.myplanet.utils.DiffUtils
 
 class ProgressGridAdapter(private val context: Context) :
-    ListAdapter<JsonObject, ProgressGridAdapter.ViewHolderMyProgress>(DIFF_CALLBACK) {
+    ListAdapter<JsonObject, ProgressGridAdapter.ViewHolderMyProgress>(
+        DiffUtils.itemCallback<JsonObject>(
+            areItemsTheSame = { oldItem, newItem -> oldItem["stepId"] == newItem["stepId"] },
+            areContentsTheSame = { oldItem, newItem -> oldItem == newItem }
+        )
+    ) {
     private lateinit var rowMyProgressGridBinding: RowMyProgressGridBinding
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolderMyProgress {
         rowMyProgressGridBinding =
@@ -47,11 +52,4 @@ class ProgressGridAdapter(private val context: Context) :
         RecyclerView.ViewHolder(rowMyProgressGridBinding.root) {
         var tvProgress = rowMyProgressGridBinding.tvProgress
     }
-
-    companion object {
-        val DIFF_CALLBACK = DiffUtils.itemCallback<JsonObject>(
-            areItemsTheSame = { oldItem, newItem -> oldItem["stepId"] == newItem["stepId"] },
-            areContentsTheSame = { oldItem, newItem -> oldItem == newItem }
-        )
-    }
 }