Merge pull request #941 from mikepenz/fix/swipe_sample

Fix swipe sample item colors

Author: mikepenz

app/src/main/java/com/mikepenz/fastadapter/app/items/SwipeableDrawerItem.kt

@@ -1,6 +1,5 @@
 package com.mikepenz.fastadapter.app.items
 
-import android.graphics.Color
 import android.view.View
 import android.widget.TextView
 import androidx.annotation.StringRes
@@ -135,11 +134,12 @@ class SwipeableDrawerItem : AbstractItem<SwipeableDrawerItem.ViewHolder>(), ISwi
         }
 
         override fun onDropped() {
-            itemContent.setBackgroundColor(Color.WHITE)
+            // note this is only to showcase this callback, remember that changes to the item need to be remembered when a viewHolder is re-used
+            // itemContent.setBackgroundColor(itemContent.context.getThemeColor(R.attr.colorPrimary))
         }
 
         override fun onDragged() {
-            itemContent.setBackgroundColor(Color.LTGRAY)
+            // itemContent.setBackgroundColor(itemContent.context.getThemeColor(R.attr.colorPrimary))
         }
 
         override val swipeableView: View

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

@@ -77,10 +77,11 @@
         android:id="@+id/item_content"
         android:layout_width="match_parent"
         android:layout_height="@dimen/material_drawer_item_primary"
-        android:background="@android:color/white"
+        android:background="?android:colorBackground"
         android:clickable="true"
         android:elevation="4dp"
         android:focusable="true"
+        android:foreground="?android:selectableItemBackground"
         android:gravity="center_vertical|start"
         android:orientation="vertical"
         android:paddingStart="@dimen/material_drawer_vertical_padding"