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, 85 insertions, 0 deletions

diff --git a/res/layout/widget_cell.xml b/res/layout/widget_cell.xml
new file mode 100644
index 000000000..1286a622b
--- /dev/null
+++ b/res/layout/widget_cell.xml
@@ -0,0 +1,85 @@
+<?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.
+-->
+<com.android.launcher3.widget.WidgetCell
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:launcher="http://schemas.android.com/apk/res-auto"
+
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:layout_weight="1"
+    android:orientation="vertical"
+    android:background="@drawable/focusable_view_bg"
+    android:focusable="true">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:paddingTop="@dimen/widget_preview_label_vertical_padding"
+        android:paddingBottom="@dimen/widget_preview_label_vertical_padding"
+        android:paddingLeft="@dimen/widget_preview_label_horizontal_padding"
+        android:paddingRight="@dimen/widget_preview_label_horizontal_padding"
+        android:orientation="horizontal">
+
+        <!-- The name of the widget. -->
+        <TextView
+            android:id="@+id/widget_name"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:gravity="start"
+            android:singleLine="true"
+            android:ellipsize="marquee"
+            android:fadingEdge="horizontal"
+
+            android:textColor="#FFFFFFFF"
+            android:textSize="12sp"
+            android:textAlignment="viewStart"
+            android:fontFamily="sans-serif-condensed"
+            android:shadowRadius="2.0"
+            android:shadowColor="#B0000000" />
+
+        <!-- The original dimensions of the widget (can't be the same text as above due to different
+             style. -->
+        <TextView
+            android:id="@+id/widget_dims"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center"
+            android:layout_marginStart="5dp"
+            android:layout_marginLeft="5dp"
+            android:layout_weight="0"
+            android:gravity="start"
+
+            android:textColor="#FFFFFFFF"
+            android:textSize="12sp"
+            android:fontFamily="sans-serif-condensed"
+            android:shadowRadius="2.0"
+            android:shadowColor="#B0000000" />
+    </LinearLayout>
+
+    <!-- The image of the widget. -->
+    <com.android.launcher3.widget.WidgetImageView
+        android:id="@+id/widget_preview"
+        style="@style/WidgetImageView"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_weight="1"
+        android:paddingTop="@dimen/widget_preview_padding_top"
+        android:paddingEnd="@dimen/widget_preview_padding_right"
+        android:paddingRight="@dimen/widget_preview_padding_right"
+        android:scaleType="matrix" />
+
+</com.android.launcher3.widget.WidgetCell>