New capture indicator design for Haleakala.

  * Introduce RoundedThumbnailView and retire PeekView.
  * Rename BottomBarModeOptionsWrapper to StickyBottomCaptureLayout.
  * Verified on K and L devices.

Thumbnail cropping:
  * 100% width and vertically centered for portrait.
  * 100% height and horizontally centered for landscape.

General behavior spec:
* Hide the capture indicatorby fading out using fast_out_linear_in (150ms):
  1) User open filmstrip.
  2) User switch module.
  3) User switch front/back camera.
  4) User close app.

Behavior spec for non-photo modules:
* Photosphere is stripped of UI so there is no need to show capture
  indicator. When a photo sphere is taken (and user is in another mode),
  the preview frame used in filmstrip is used in the capture indicator.
* Video: show in viewfinder prior or after capture. Hide during capture.
  When a video is taken, the preview frame used in filmstrip is used in
  the capture indicator.
* Panorama: Show in viewfinder prior or after capture. Hide during
  capture. When a panorama is taken, the preview frame used in filmstrip
  is used in the capture indicator.
* Lens blue: Show in viewfinder prior or after capture. Hide during
  capture. When a lens blur is taken, the preview frame used in filmstrip
  is used in the capture indicator.

Visual spec:
A 12dp spacing between mode option overlay and thumbnail.
1. A circular mask that excludes the corners of the preview image.
2. A solid white layer that sits on top of the preview and is also masked
   by (1).
3. The preview image.
4. A 'ripple' which is just a white circular stroke.

Animation spec:
(1) only the scale animates, from 50%(24dp) to 114%(54dp) in 200ms then
    falls back to 100%(48dp) in 200ms. Both steps use the same easing:
    fast_out_slow_in.
(2) opacity, from 50% to 0% over 150ms, easing is exponential.
(3) doesn't animate.
(4) starts animating after 100ms, when (1) is at its peak radius and all
    animations take 200ms, using linear_out_slow in. Opacity goes from 40%
    to 0%, radius goes from 40dp to 70dp, stroke width goes from 5dp to 1dp.

Bug: 18317565
Change-Id: Ib8d4f065b98fc3b9b0b627633232ce8cee96eb61

3 files changed, 10 insertions, 11 deletions

diff --git a/res/layout/activity_main.xml b/res/layout/activity_main.xml
index ea1b56407..c0eedab43 100644
--- a/res/layout/activity_main.xml
+++ b/res/layout/activity_main.xml
@@ -23,12 +23,6 @@
     android:background="@null">
 
     <include layout="@layout/camera" />
-
-    <com.android.camera.widget.PeekView
-        android:id="@+id/peek_view"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:visibility="invisible" />
     <include layout="@layout/camera_filmstrip" />
     <com.android.camera.ui.ModeTransitionView
         android:id="@+id/mode_transition_view"
diff --git a/res/layout/camera.xml b/res/layout/camera.xml
index 650ad8fe8..121dc0fbc 100644
--- a/res/layout/camera.xml
+++ b/res/layout/camera.xml
@@ -67,7 +67,7 @@
         android:layout_width="match_parent"
         android:layout_height="match_parent" />
 
-    <include layout="@layout/mode_options_bottombar" />
+    <include layout="@layout/sticky_bottom_capture_layout" />
 
     <FrameLayout
         android:id="@+id/tutorials_placeholder_wrapper"
diff --git a/res/layout/mode_options_bottombar.xml b/res/layout/sticky_bottom_capture_layout.xml
index 97ce8fa7a..6d98c30f3 100644
--- a/res/layout/mode_options_bottombar.xml
+++ b/res/layout/sticky_bottom_capture_layout.xml
@@ -15,12 +15,18 @@
 -->
 <!-- This layout is shared by phone and tablet in landscape orientation. -->
 
-<com.android.camera.ui.BottomBarModeOptionsWrapper
+<com.android.camera.ui.StickyBottomCaptureLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
-    android:id="@+id/indicator_bottombar_wrapper"
+    android:id="@+id/sticky_bottom_capture_layout"
     android:layout_width="match_parent"
     android:layout_height="match_parent" >
 
+    <com.android.camera.widget.RoundedThumbnailView
+        android:id="@+id/rounded_thumbnail_view"
+        android:layout_width="@+dimen/rounded_thumbnail_ripple_ring_diameter_max"
+        android:layout_height="@+dimen/rounded_thumbnail_ripple_ring_diameter_max"
+        android:visibility="invisible" />
+
     <include layout="@layout/mode_options_overlay" />
 
     <com.android.camera.ui.BottomBar
@@ -33,5 +39,4 @@
         <include layout="@layout/bottom_bar_contents" />
 
     </com.android.camera.ui.BottomBar>
-</com.android.camera.ui.BottomBarModeOptionsWrapper>
-
+</com.android.camera.ui.StickyBottomCaptureLayout>