WidgetTray revamp work

- RecyclerView is rendering
- Animation is connected
- Drag and drop is now handled
- UI tweaking: background, margins, more to come.
- Flicker and preview not loading issue:
  fixed height for the horizontal scroll view.
- Shortcuts are added
- Widget Preview loading should support shortPress for drop
- UI tweaks left: overlay of arrow when there are more items to scroll
- icons are added in the section header
- Sorting of widget sections and widget horizontal list
- Adding all the padding constants to dimen.xml file
- RecyclerView should only support one view type

For items to be addressed in follow up patches OR CLs,
TODO is added to the comment.

b/19897708

Change-Id: Ibfc4da1696a23d20bada93db46e126706eb13cdc

1 files changed, 89 insertions, 0 deletions

diff --git a/res/layout/widgets_list_row_view.xml b/res/layout/widgets_list_row_view.xml
new file mode 100644
index 000000000..c7863c7c3
--- /dev/null
+++ b/res/layout/widgets_list_row_view.xml
@@ -0,0 +1,89 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2015 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/widgets_cell_list_container"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical"
+    android:layout_marginLeft="8dp"
+    android:layout_marginRight="8dp"
+    android:layout_marginTop="8dp"
+    android:layout_marginBottom="8dp"
+    android:focusable="true"
+    android:background="@drawable/focusable_view_bg"
+    android:descendantFocusability="afterDescendants">
+
+    <!-- Section info -->
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        android:focusable="true"
+        android:background="@drawable/focusable_view_bg"
+        android:descendantFocusability="afterDescendants">
+        <ImageView
+            android:id="@+id/section_image"
+            android:layout_width="@dimen/widget_section_height"
+            android:layout_height="@dimen/widget_section_height"
+            android:paddingLeft="@dimen/widget_section_icon_padding"
+            android:paddingRight="@dimen/widget_section_icon_padding"
+            android:paddingTop="@dimen/widget_section_icon_padding"
+            android:paddingBottom="@dimen/widget_section_icon_padding"
+            android:background="@color/widget_text_panel"
+        />
+        <TextView
+            android:id="@+id/section"
+            android:layout_width="match_parent"
+            android:layout_height="@dimen/widget_section_height"
+            android:paddingTop="8dp"
+            android:paddingLeft="16dp"
+            android:paddingRight="16dp"
+            android:gravity="start|center_vertical"
+            android:textColor="@color/widgets_view_section_text_color"
+            android:background="@color/widget_text_panel"
+            android:textSize="20sp"
+            android:focusable="false" />
+    </LinearLayout>
+
+    <!--  Widget list -->
+    <RelativeLayout 
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:layout_gravity="end"
+        >
+        <!-- TODO(hyunyoungs): replace the indicator with actual assets. -->
+        <FrameLayout
+            android:id="@+id/scrollable_indicator"
+            android:layout_gravity="center_vertical"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:background="@drawable/ic_pageindicator_default"
+            android:visibility="invisible"
+            />
+        <HorizontalScrollView
+            android:id="@+id/widgets_scroll_container"
+            android:layout_width="match_parent"
+            android:layout_height="@dimen/widget_cell_height"
+            android:scrollbars="none" >
+            <LinearLayout
+                android:id="@+id/widgets_cell_list"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal" />
+        </HorizontalScrollView>
+    </RelativeLayout>
+</LinearLayout>