Animation for smart dialing suggestions

Suggestions now appear with a fade in and slide up animation.
Suggestions vanish with a fade out and slide down animation.
If a suggestion is moved into the middle, it slides to the left/right
as appropriate.

Change the layout containing suggestions to a LinearLayout, in order to
better support animations.

Renamed SmartDialAdapter to SmartDialController, and also refactored
it to handle entries for a LinearLayout instead of a GridView, as well
as adding animation support and view management.

Use null object pattern in SmartDialEntry to better handle null entries.

Start displaying suggestions on the first digit entered.

Bug 8840240

Change-Id: If4e16006c0b36d2244434e0b2d8f3d3b997b0ad2

3 files changed, 33 insertions, 16 deletions

diff --git a/res/layout/dialpad_fragment.xml b/res/layout/dialpad_fragment.xml
index 13d91bd27..f3bd2a213 100644
--- a/res/layout/dialpad_fragment.xml
+++ b/res/layout/dialpad_fragment.xml
@@ -57,17 +57,29 @@
             android:src="@drawable/ic_dial_action_delete" />
     </LinearLayout>
 
-    <!-- Smard dial suggestion section -->
-    <GridView
-        android:id="@+id/dialpad_smartdial_list"
+    <!-- Smart dial suggestion section.
+         sp is used here for this layout instead of dp in order for it to resize as
+         appropriate when the font size increases. This is a one-time exception that is
+         ok in this case because there is space for the suggestion strip to expand. -->
+    <RelativeLayout
+        android:id="@+id/dialpad_smartdial_container"
         android:layout_width="match_parent"
         android:layout_height="50sp"
-        android:columnWidth="0dp"
-        android:numColumns="3"
-        android:stretchMode="columnWidth"
-        android:gravity="center"
-        android:layout_marginTop="@dimen/dialpad_vertical_margin"
-        android:background="@drawable/dialpad_background"/>
+        android:layout_marginTop="@dimen/dialpad_vertical_margin">
+        <View
+            android:id="@+id/dialpad_smartdial_list_background"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:background="@drawable/dialpad_background">
+        </View>
+        <LinearLayout
+            android:id="@+id/dialpad_smartdial_list"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:orientation="horizontal"
+            android:gravity="center">
+        </LinearLayout>
+    </RelativeLayout>
 
     <!-- Keypad section -->
     <include layout="@layout/dialpad" />
diff --git a/res/layout/dialpad_smartdial_item.xml b/res/layout/dialpad_smartdial_item.xml
index 54f2a084e..32d801e80 100644
--- a/res/layout/dialpad_smartdial_item.xml
+++ b/res/layout/dialpad_smartdial_item.xml
@@ -16,15 +16,19 @@
 <LinearLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:orientation="vertical"
-    android:layout_width="match_parent"
-    android:layout_height="46sp">
+    android:layout_width="0dp"
+    android:layout_weight="1"
+    android:layout_height="match_parent"
+    android:layout_marginTop="2dp"
+    android:layout_marginBottom="2dp"
+    android:background="?android:attr/selectableItemBackground">
 
     <com.android.dialer.dialpad.SmartDialTextView
         android:id="@+id/contact_name"
         android:layout_width="match_parent"
         android:layout_height="28sp"
         android:padding="@dimen/smartdial_suggestions_padding"
-        android:textColor="@color/smartdial_primary_text_color"
+        android:textColor="@color/smartdial_name_primary_text_color"
         android:textSize="16sp"
         android:singleLine="true"
         android:ellipsize="none"
@@ -34,7 +38,7 @@
         android:id="@+id/contact_number"
         android:layout_width="match_parent"
         android:layout_height="16sp"
-        android:textColor="@color/dialtacts_secondary_text_color"
+        android:textColor="@color/smartdial_number_primary_text_color"
         android:textSize="13sp"
         android:gravity="center"
     />
diff --git a/res/values/colors.xml b/res/values/colors.xml
index 288f58b64..1aa217fe8 100644
--- a/res/values/colors.xml
+++ b/res/values/colors.xml
@@ -18,9 +18,10 @@
 
     <!-- Secondary text color in the Phone app -->
     <color name="dialtacts_secondary_text_color">#888888</color>
-    <color name="smartdial_confidence_drawable_color">#39caff</color>
-    <color name="smartdial_primary_text_color">#39caff</color>
-    <color name="smartdial_highlighted_text_color">#ffffff</color>
+    <color name="smartdial_name_primary_text_color">#0099cc</color>
+    <color name="smartdial_name_highlighted_text_color">#39c9ff</color>
+    <color name="smartdial_number_primary_text_color">#bbbbbb</color>
+    <color name="smartdial_number_highlighted_text_color">#ffffff</color>
 
     <!-- Color of the text describing an unconsumed missed call. -->
     <color name="call_log_missed_call_highlight_color">#FF0000</color>