Update battery & storage settings to use headline font.

Updates several locations to use config_headlineFontFamily as the
android:fontFamily or Typeface object. This allows OEMs to specify
a custom headline font.

Bug: 36855735
Test: ag/2360364
Change-Id: I627515d2afd5ff018aae10843d099b8c83880635

res/layout/battery_header.xml

@@ -39,6 +39,7 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_marginTop="12dp"
+            android:fontFamily="@*android:string/config_headlineFontFamily"
             android:textAppearance="@android:style/TextAppearance.Material.Display1"/>
 
         <TextView

res/layout/storage_summary.xml

@@ -30,13 +30,14 @@
         android:id="@android:id/title"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
+        android:ellipsize="marquee"
+        android:fadingEdge="horizontal"
+        android:fontFamily="@*android:string/config_headlineFontFamily"
         android:singleLine="true"
         android:textAlignment="viewStart"
         android:textAppearance="@android:style/TextAppearance.Material.Subhead"
         android:textColor="?android:attr/colorAccent"
-        android:textSize="36sp"
+        android:textSize="36sp"/>
-        android:ellipsize="marquee"
-        android:fadingEdge="horizontal" />
 
     <TextView
         android:id="@android:id/summary"

res/layout/storage_summary_donut.xml

@@ -36,10 +36,11 @@
 
         <TextView
             android:id="@android:id/title"
-            android:ellipsize="marquee"
-            android:fadingEdge="horizontal"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
+            android:ellipsize="marquee"
+            android:fadingEdge="horizontal"
+            android:fontFamily="@*android:string/config_headlineFontFamily"
             android:singleLine="true"
             android:textAlignment="viewStart"
             android:textAppearance="@android:style/TextAppearance.Material.Display1"

src/com/android/settings/widget/DonutView.java

@@ -22,6 +22,7 @@ import android.graphics.ColorFilter;
 import android.graphics.Paint;
 import android.graphics.PorterDuff;
 import android.graphics.PorterDuffColorFilter;
+import android.graphics.Typeface;
 import android.text.TextPaint;
 import android.util.AttributeSet;
 import android.view.View;
@@ -90,6 +91,9 @@ public class DonutView extends View {
         mBigNumberPaint.setTextSize(
                 resources.getDimension(R.dimen.storage_donut_view_percent_text_size));
         mBigNumberPaint.setTextAlign(Paint.Align.CENTER);
+        mBigNumberPaint.setTypeface(Typeface.create(
+                getContext().getString(com.android.internal.R.string.config_headlineFontFamily),
+                Typeface.NORMAL));
     }
 
     @Override

tests/robotests/src/com/android/settings/deviceinfo/storage/StorageSummaryDonutPreferenceControllerTest.java

@@ -41,6 +41,7 @@ import com.android.settings.SettingsRobolectricTestRunner;
 import com.android.settings.TestConfig;
 import com.android.settings.core.instrumentation.MetricsFeatureProvider;
 import com.android.settings.testutils.FakeFeatureFactory;
+import com.android.settings.testutils.shadow.SettingsShadowResources;
 import com.android.settingslib.deviceinfo.StorageVolumeProvider;
 
 import org.junit.Before;
@@ -57,7 +58,11 @@ import static com.android.settings.TestUtils.MEGABYTE;
 import static com.android.settings.TestUtils.GIGABYTE;
 
 @RunWith(SettingsRobolectricTestRunner.class)
-@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
+@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION,
+        shadows = {
+        SettingsShadowResources.class,
+        SettingsShadowResources.SettingsShadowTheme.class
+})
 public class StorageSummaryDonutPreferenceControllerTest {
     private Context mContext;
     private StorageSummaryDonutPreferenceController mController;