fix(android): add elevation and support transparent backgrounds

android/modules/ui/res/layout/titanium_ui_listview_holder.xml

@@ -2,7 +2,9 @@
 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:id="@+id/titanium_ui_listview_holder"
     android:layout_width="match_parent"
-    android:layout_height="wrap_content">
+    android:layout_height="wrap_content"
+    android:clipToPadding="false"
+    android:outlineProvider="bounds">
 
     <!-- Header Container -->
     <RelativeLayout

android/modules/ui/res/layout/titanium_ui_tableview_holder.xml

@@ -2,7 +2,9 @@
 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:id="@+id/titanium_ui_tableview_holder"
     android:layout_width="match_parent"
-    android:layout_height="wrap_content">
+    android:layout_height="wrap_content"
+    android:clipToPadding="false"
+    android:outlineProvider="bounds">
 
     <!-- Header Container -->
     <RelativeLayout

android/modules/ui/src/java/ti/modules/titanium/ui/widget/listview/ItemTouchHandler.java

@@ -40,18 +40,13 @@ public ItemTouchHandler(TiRecyclerViewAdapter adapter, RecyclerViewProxy recycle
 	}
 
 	/**
-	 * Override drag direction flags.
+	 * Determine if proxy supports movement.
 	 *
-	 * @param recyclerView Current RecyclerView.
-	 * @param viewHolder Current Holder.
-	 * @return Integer containing drag flags.
+	 * @param holderProxy
+	 * @return Boolean
 	 */
-	@Override
-	public int getDragDirs(@NonNull RecyclerView recyclerView, @NonNull RecyclerView.ViewHolder viewHolder)
+	private boolean canMove(TiViewProxy holderProxy)
 	{
-		final TiRecyclerViewHolder holder = (TiRecyclerViewHolder) viewHolder;
-		final TiViewProxy holderProxy = holder.getProxy();
-
 		String moveProperty = TiC.PROPERTY_MOVABLE;
 		if (holderProxy instanceof ListItemProxy) {
 
@@ -63,11 +58,46 @@ public int getDragDirs(@NonNull RecyclerView recyclerView, @NonNull RecyclerView
 		final boolean defaultValue = this.recyclerViewProxy.getProperties().optBoolean(moveProperty, false);
 
 		// Obtain move value from current holder proxy.
-		final boolean canMove = holderProxy.getProperties().optBoolean(moveProperty, defaultValue);
+		return holderProxy.getProperties().optBoolean(moveProperty, defaultValue);
+	}
+
+	/**
+	 * Determine if proxy supports swipe.
+	 *
+	 * @param holderProxy
+	 * @return Boolean
+	 */
+	private boolean canSwipe(TiViewProxy holderProxy)
+	{
+		String editProperty = TiC.PROPERTY_EDITABLE;
+		if (holderProxy instanceof ListItemProxy) {
+			editProperty = TiC.PROPERTY_CAN_EDIT;
+		}
+
+		// Obtain default edit value from RecyclerView proxy.
+		final boolean defaultValue = this.recyclerViewProxy.getProperties().optBoolean(editProperty, false);
+
+		// Obtain edit value from current holder proxy.
+		return holderProxy.getProperties().optBoolean(editProperty, defaultValue);
+	}
+
+	/**
+	 * Override drag direction flags.
+	 *
+	 * @param recyclerView Current RecyclerView.
+	 * @param viewHolder Current Holder.
+	 * @return Integer containing drag flags.
+	 */
+	@Override
+	public int getDragDirs(@NonNull RecyclerView recyclerView, @NonNull RecyclerView.ViewHolder viewHolder)
+	{
+		final TiRecyclerViewHolder holder = (TiRecyclerViewHolder) viewHolder;
+		final TiViewProxy holderProxy = holder.getProxy();
 
-		if ((isEditing() || isMoving()) && canMove) {
+		if ((isEditing() || isMoving()) && canMove(holderProxy)) {
 			return ItemTouchHelper.UP | ItemTouchHelper.DOWN;
 		}
+
 		return 0;
 	}
 
@@ -84,18 +114,7 @@ public int getSwipeDirs(@NonNull RecyclerView recyclerView, @NonNull RecyclerVie
 		final TiRecyclerViewHolder holder = (TiRecyclerViewHolder) viewHolder;
 		final TiViewProxy holderProxy = holder.getProxy();
 
-		String editProperty = TiC.PROPERTY_EDITABLE;
-		if (holderProxy instanceof ListItemProxy) {
-			editProperty = TiC.PROPERTY_CAN_EDIT;
-		}
-
-		// Obtain default edit value from RecyclerView proxy.
-		final boolean defaultValue = this.recyclerViewProxy.getProperties().optBoolean(editProperty, false);
-
-		// Obtain edit value from current holder proxy.
-		final boolean canSwipe = holderProxy.getProperties().optBoolean(editProperty, defaultValue);
-
-		if ((isEditing() || isMoving()) && canSwipe) {
+		if ((isEditing() || isMoving()) && canSwipe(holderProxy)) {
 			return ItemTouchHelper.LEFT | ItemTouchHelper.RIGHT;
 		}
 		return 0;
@@ -189,18 +208,30 @@ public void onChildDraw(@NonNull Canvas c,
 	{
 		super.onChildDraw(c, recyclerView, viewHolder, dX, dY, actionState, isCurrentlyActive);
 
-		if ((!isEditing() && !isMoving()) || dX == 0) {
+		final TiRecyclerViewHolder holder = (TiRecyclerViewHolder) viewHolder;
+		final TiViewProxy holderProxy = holder.getProxy();
+		final View view = holder.itemView;
+
+		if (!isEditing() && !isMoving()) {
 
 			// No swipe, do not render.
 			return;
 		}
 
-		final View view = viewHolder.itemView;
+		if (isCurrentlyActive) {
 
-		final int iconMargin = view.getHeight() - icon.getIntrinsicHeight();
+			// Set elevation for row being moved.
+			view.setElevation(canMove(holderProxy) ? 30 : 0);
+		}
+
+		final int iconMargin = (view.getHeight() - icon.getIntrinsicHeight()) / 2;
 		final int iconTop = view.getTop() + (view.getHeight() - icon.getIntrinsicHeight()) / 2;
 		final int iconBottom = iconTop + icon.getIntrinsicHeight();
-		final int backgroundWidth = view.getMeasuredWidth() / 2;
+
+		// Add additional background width when `borderRadius` is set.
+		// This is to apply the red background behind the curved borders.
+		final int backgroundWidth = holderProxy.getProperty(TiC.PROPERTY_BORDER_RADIUS) != null
+			? view.getMeasuredWidth() / 2 : 0;
 
 		if (dX > 0) {
 			final int iconLeft = view.getLeft() + iconMargin;
@@ -219,6 +250,11 @@ public void onChildDraw(@NonNull Canvas c,
 			// Set bounds for left swipe.
 			icon.setBounds(iconLeft, iconTop, iconRight, iconBottom);
 			background.setBounds(backgroundLeft, view.getTop(), view.getRight(), view.getBottom());
+		} else {
+
+			// Reset bounds.
+			icon.setBounds(0, 0, 0, 0);
+			background.setBounds(0, 0, 0, 0);
 		}
 
 		background.draw(c);

android/modules/ui/src/java/ti/modules/titanium/ui/widget/listview/ListViewHolder.java

@@ -44,7 +44,7 @@ public class ListViewHolder extends TiRecyclerViewHolder
 	private static final String TAG = "ListViewHolder";
 
 	// Top
-	private final ViewGroup header;
+	private final TiCompositeLayout header;
 	private final TextView headerTitle;
 
 	// Middle