Implemented Card-, DetailView-, GridView-, Music- & Video,

Wizard-, Dialog examples

The Launcher card needs to be animated. When expanding cards
with an animation some animation artifacts might occur since the
transition system moves the cards to be centered again. Thus, the
two animations are competing with each other. Currently I'm waiting
for a change on leanback's transition system or another way to
animate cards.
Another animation artifact occurs when collapsing the SideInfo-cards,
which I hope to be resolved once we clarified how to do proper card
animations in the framework.
There are some minor issues with in the DetailView since some API
methods are missing for customization such as setting the details-
and ActionBars background color.
Removed obsolete package.
Finished music example.
Finished video example.
Bug 22362006
Added Dialog example.
WIP Testing new ImageCardView XML styling.
WIP Settings example.
WIP Wizard example.
Finished Dialog example.
Gradle uses environment variable to reference support libraries.

Change-Id: I8f911d2e5aeb1fb8764f45d20fda1dc0fc69773a

1 files changed, 10 insertions, 0 deletions

diff --git a/samples/SupportLeanbackShowcase/app/src/main/res/layout/activity_main.xml b/samples/SupportLeanbackShowcase/app/src/main/res/layout/activity_main.xml
new file mode 100644
index 000000000..b6cf93f7a
--- /dev/null
+++ b/samples/SupportLeanbackShowcase/app/src/main/res/layout/activity_main.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout
+    android:id="@+id/fragmentContainer"
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:deviceIds="tv"
+    tools:ignore="MergeRootFrame">
+</RelativeLayout>