Catch error when we fail to get slice icon.

Change-Id: Ia8bdf1ef8a090d2f939abf27b2308eafde7d8928
Fixes: 120588243
Test: robotests

src/com/android/settings/slices/SliceBuilderUtils.java

@@ -449,6 +449,12 @@ public class SliceBuilderUtils {
         if (iconResource == 0) {
             iconResource = R.drawable.ic_settings;
         }
-        return IconCompat.createWithResource(context, iconResource);
+        try {
+            return IconCompat.createWithResource(context, iconResource);
+        } catch (Exception e) {
+            Log.w(TAG, "Falling back to settings icon because there is an error getting slice icon "
+                    + data.getUri(), e);
+            return IconCompat.createWithResource(context, R.drawable.ic_settings);
+        }
     }
 }

tests/robotests/src/com/android/settings/slices/SliceBuilderUtilsTest.java

@@ -505,6 +505,19 @@ public class SliceBuilderUtilsTest {
         assertThat(actualIconResource).isEqualTo(settingsIcon);
     }
 
+    @Test
+    public void getSafeIcon_invalidResource_shouldFallbackToSettingsIcon() {
+        final int settingsIcon = R.drawable.ic_settings;
+        final int badIcon = 0x12345678;
+        final SliceData data = getDummyData(TOGGLE_CONTROLLER, SliceData.SliceType.SWITCH,
+                badIcon);
+
+        final IconCompat actualIcon = SliceBuilderUtils.getSafeIcon(mContext, data);
+
+        final int actualIconResource = actualIcon.toIcon().getResId();
+        assertThat(actualIconResource).isEqualTo(settingsIcon);
+    }
+
     private SliceData getDummyData() {
         return getDummyData(TOGGLE_CONTROLLER, SUMMARY, SliceData.SliceType.SWITCH, SCREEN_TITLE,
                 ICON, IS_DYNAMIC_SUMMARY_ALLOWED);