HorizontalSelector bug

app/build.gradle

@@ -49,6 +49,7 @@ dependencies {
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
     implementation "androidx.core:core-ktx:1.7.0"
     implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:2.4.1"
+    implementation "androidx.lifecycle:lifecycle-livedata-ktx:2.4.1"
 }
 
 repositories {

app/src/main/java/com/realwear/uxlibrary_example/horizontalselectorexample/DataSource.kt

@@ -0,0 +1,17 @@
+package com.realwear.uxlibrary_example.horizontalselectorexample
+
+object DataSource {
+    val arr = arrayOf(
+        TestColor.Black,
+        TestColor.Brown,
+        TestColor.Red,
+        TestColor.Orange,
+        TestColor.Yellow,
+        TestColor.Green,
+        TestColor.Cyan,
+        TestColor.Blue,
+        TestColor.Violet,
+        TestColor.Gray,
+        TestColor.White
+    )
+}

app/src/main/java/com/realwear/uxlibrary_example/horizontalselectorexample/ExampleAdapter.kt

@@ -44,20 +44,7 @@ class ExampleAdapter(context: Context) :
     HorizontalSelectorAdapter<ExampleViewHolder>(context) {
     private val weakContext: WeakReference<Context> = WeakReference(context)
     private val localTag = ExampleAdapter::class.java.simpleName
-
-    private val arr = arrayOf(
-        TestColor.Black,
-        TestColor.Brown,
-        TestColor.Red,
-        TestColor.Orange,
-        TestColor.Yellow,
-        TestColor.Green,
-        TestColor.Cyan,
-        TestColor.Blue,
-        TestColor.Violet,
-        TestColor.Gray,
-        TestColor.White
-    )
+    private var arr: Array<TestColor> = emptyArray()
 
     override fun onCreateViewHolder(parent: ViewGroup): ExampleViewHolder {
         return ExampleViewHolder(
@@ -105,6 +92,13 @@ class ExampleAdapter(context: Context) :
             else -> null
         }
     }
+
+    fun updateArray(array: Array<TestColor>) {
+        arr = array
+
+        // FIXME: When adapter is updated from LiveData items sometimes are not fully inflated
+        notifyDataSetChanged()
+    }
 }
 
 /**

app/src/main/java/com/realwear/uxlibrary_example/horizontalselectorexample/FragmentHorizontalSelectorExample.kt

@@ -93,7 +93,9 @@ class CustomDialogFragment : DialogFragment() {
         )
         val view = binding.root
 
-        binding.horizontalSelector.setAdapter(ExampleAdapter(weakContext.get()!!))
+        val adapter = ExampleAdapter(weakContext.get()!!)
+        binding.horizontalSelector.setAdapter(adapter)
+        adapter.updateArray(DataSource.arr) // No ViewModel - no bug
 
         /**
          * Method demonstrating how to get the index of the focused item.

app/src/main/java/com/realwear/uxlibrary_example/horizontalselectorexample/HorizontalSelectorExampleActivity.kt

@@ -10,6 +10,7 @@ package com.realwear.uxlibrary_example.horizontalselectorexample
 import android.os.Bundle
 import android.view.View
 import android.widget.Toast
+import androidx.activity.viewModels
 import androidx.appcompat.app.AppCompatActivity
 import com.realwear.uxlibrary_example.R
 import com.realwear.uxlibrary_example.databinding.ActivityHorizontalSelectorBinding
@@ -19,14 +20,22 @@ import com.realwear.uxlibrary_example.databinding.ActivityHorizontalSelectorBind
  */
 class HorizontalSelectorExampleActivity : AppCompatActivity() {
     private lateinit var binding: ActivityHorizontalSelectorBinding
+
+    private val viewModel by viewModels<HorizontalSelectorExampleViewModel>()
+    private val adapter = ExampleAdapter(this)
+
     private var centerBorderVisibility = View.VISIBLE
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         binding = ActivityHorizontalSelectorBinding.inflate(layoutInflater)
         setContentView(binding.root)
 
-        binding.horizontalSelector.setAdapter(ExampleAdapter(this))
+        binding.horizontalSelector.setAdapter(adapter)
+        viewModel.getArray().observe(this) {
+            // FIXME: ViewModel observing causes bug with items
+            adapter.updateArray(it)
+        }
     }
 
     /**

app/src/main/java/com/realwear/uxlibrary_example/horizontalselectorexample/HorizontalSelectorExampleViewModel.kt

@@ -0,0 +1,12 @@
+package com.realwear.uxlibrary_example.horizontalselectorexample
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.liveData
+import kotlinx.coroutines.Dispatchers
+
+class HorizontalSelectorExampleViewModel : ViewModel() {
+
+    fun getArray() = liveData(Dispatchers.IO) {
+        emit(DataSource.arr)
+    }
+}