Explorations in dense grids for all apps.

- Adds sticky section headers
- Removing AppsListAdapter
- Adding search bar field
- Subtitle filtering

Bug: 20222023

Change-Id: I1eaef701b5d68f475615f09d86561eacc91c937f

12 files changed, 49 insertions, 15 deletions

diff --git a/res/drawable-hdpi/ic_arrow_back_grey.png b/res/drawable-hdpi/ic_arrow_back_grey.png
new file mode 100755
index 000000000..ccd3900dd
--- /dev/null
+++ b/res/drawable-hdpi/ic_arrow_back_grey.png
diff --git a/res/drawable-hdpi/ic_search_grey.png b/res/drawable-hdpi/ic_search_grey.png
new file mode 100755
index 000000000..f4c5e27d2
--- /dev/null
+++ b/res/drawable-hdpi/ic_search_grey.png
diff --git a/res/drawable-mdpi/ic_arrow_back_grey.png b/res/drawable-mdpi/ic_arrow_back_grey.png
new file mode 100755
index 000000000..11996efe3
--- /dev/null
+++ b/res/drawable-mdpi/ic_arrow_back_grey.png
diff --git a/res/drawable-mdpi/ic_search_grey.png b/res/drawable-mdpi/ic_search_grey.png
new file mode 100755
index 000000000..e83891c11
--- /dev/null
+++ b/res/drawable-mdpi/ic_search_grey.png
diff --git a/res/drawable-xhdpi/ic_arrow_back_grey.png b/res/drawable-xhdpi/ic_arrow_back_grey.png
new file mode 100755
index 000000000..79b9b486c
--- /dev/null
+++ b/res/drawable-xhdpi/ic_arrow_back_grey.png
diff --git a/res/drawable-xhdpi/ic_search_grey.png b/res/drawable-xhdpi/ic_search_grey.png
new file mode 100755
index 000000000..bd5fdf444
--- /dev/null
+++ b/res/drawable-xhdpi/ic_search_grey.png
diff --git a/res/drawable-xxhdpi/ic_arrow_back_grey.png b/res/drawable-xxhdpi/ic_arrow_back_grey.png
new file mode 100755
index 000000000..8e42e091d
--- /dev/null
+++ b/res/drawable-xxhdpi/ic_arrow_back_grey.png
diff --git a/res/drawable-xxhdpi/ic_search_grey.png b/res/drawable-xxhdpi/ic_search_grey.png
new file mode 100755
index 000000000..1d5c91361
--- /dev/null
+++ b/res/drawable-xxhdpi/ic_search_grey.png
diff --git a/res/drawable-xxxhdpi/ic_arrow_back_grey.png b/res/drawable-xxxhdpi/ic_arrow_back_grey.png
new file mode 100755
index 000000000..854a9bd1a
--- /dev/null
+++ b/res/drawable-xxxhdpi/ic_arrow_back_grey.png
diff --git a/res/drawable-xxxhdpi/ic_search_grey.png b/res/drawable-xxxhdpi/ic_search_grey.png
new file mode 100755
index 000000000..28519fda6
--- /dev/null
+++ b/res/drawable-xxxhdpi/ic_search_grey.png
diff --git a/res/layout/apps_list_view.xml b/res/layout/apps_list_view.xml
index dfb7b588d..e29cac5e1 100644
--- a/res/layout/apps_list_view.xml
+++ b/res/layout/apps_list_view.xml
@@ -22,22 +22,55 @@
     android:elevation="15dp"
     android:visibility="gone"
     android:focusableInTouchMode="true">
-    <EditText
-        android:id="@+id/app_search_box"
+    <FrameLayout
+        android:id="@+id/header"
         android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:padding="16dp"
-        android:hint="@string/apps_view_search_bar_hint"
-        android:maxLines="1"
-        android:singleLine="true"
-        android:scrollHorizontally="true"
-        android:gravity="fill_horizontal"
-        android:textSize="16sp"
-        android:textColor="#4c4c4c"
-        android:textColorHint="#9c9c9c"
-        android:imeOptions="actionDone|flagNoExtractUi"
-        android:background="@drawable/apps_search_bg"
-        android:elevation="4dp" />
+        android:layout_height="52dp"
+        android:orientation="horizontal"
+        android:background="@drawable/apps_search_bg">
+        <LinearLayout
+            android:id="@+id/app_search_container"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal"
+            android:visibility="invisible">
+            <ImageView
+                android:id="@+id/dismiss_search_button"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_gravity="start|center_vertical"
+                android:paddingTop="12dp"
+                android:paddingBottom="12dp"
+                android:contentDescription="@string/all_apps_button_label"
+                android:src="@drawable/ic_arrow_back_grey" />
+            <EditText
+                android:id="@+id/app_search_box"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:paddingTop="16dp"
+                android:paddingBottom="16dp"
+                android:paddingLeft="8dp"
+                android:hint="@string/apps_view_search_bar_hint"
+                android:maxLines="1"
+                android:singleLine="true"
+                android:scrollHorizontally="true"
+                android:gravity="fill_horizontal"
+                android:textSize="16sp"
+                android:textColor="#4c4c4c"
+                android:textColorHint="#9c9c9c"
+                android:imeOptions="actionDone|flagNoExtractUi"
+                android:background="@android:color/transparent" />
+        </LinearLayout>
+        <ImageView
+            android:id="@+id/search_button"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="end|center_vertical"
+            android:paddingTop="12dp"
+            android:paddingBottom="12dp"
+            android:contentDescription="@string/apps_view_search_bar_hint"
+            android:src="@drawable/ic_search_grey" />
+    </FrameLayout>
     <com.android.launcher3.AppsContainerRecyclerView
         android:id="@+id/apps_list_view"
         android:layout_width="match_parent"
diff --git a/res/values/dimens.xml b/res/values/dimens.xml
index a57ae89d0..4fbe87e09 100644
--- a/res/values/dimens.xml
+++ b/res/values/dimens.xml
@@ -53,6 +53,7 @@
     <!-- Note: This needs to match the fixed insets for the search box -->
     <dimen name="apps_container_fixed_bounds_inset">8dp</dimen>
     <dimen name="apps_grid_view_start_margin">52dp</dimen>
+    <dimen name="apps_grid_section_y_offset">8dp</dimen>
     <dimen name="apps_view_row_height">64dp</dimen>
     <dimen name="apps_view_section_text_size">24sp</dimen>
     <dimen name="apps_view_fast_scroll_bar_width">6dp</dimen>