add accessibility string for location quicksetting

This gives the location quick setting the same ability that all the
other quick settings have: the accessibility text can now be
different from the display text.

Bug: 11010329
Change-Id: I0dee7b6f974b4e1dc314a35e39d907e90dc8dc3c
diff --git a/packages/SystemUI/res/values/strings.xml b/packages/SystemUI/res/values/strings.xml
index 58865ab..e6fcdff 100644
--- a/packages/SystemUI/res/values/strings.xml
+++ b/packages/SystemUI/res/values/strings.xml
@@ -382,6 +382,8 @@
     <string name="accessibility_quick_settings_airplane">Airplane Mode <xliff:g id="state" example="Off">%s</xliff:g>.</string>
     <!-- Content description of the bluetooth tile in quick settings (not shown on the screen). [CHAR LIMIT=NONE] -->
     <string name="accessibility_quick_settings_bluetooth">Bluetooth <xliff:g id="state" example="Off">%s</xliff:g>.</string>
+    <!-- Content description of the location tile in quick settings (not shown on the screen). [CHAR LIMIT=NONE] -->
+    <string name="accessibility_quick_settings_location">Location <xliff:g id="state" example="Off">%s</xliff:g>.</string>
     <!-- Content description of the alarm tile in quick settings (not shown on the screen). [CHAR LIMIT=NONE] -->
     <string name="accessibility_quick_settings_alarm">Alarm set for <xliff:g id="time" example="Wed 3:30 PM">%s</xliff:g>.</string>
 
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickSettings.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickSettings.java
index 5423bb6..37504fb 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickSettings.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickSettings.java
@@ -630,8 +630,19 @@
                     return true; // Consume click
                 }} );
         }
-        mModel.addLocationTile(locationTile,
-                new QuickSettingsModel.BasicRefreshCallback(locationTile));
+        mModel.addLocationTile(locationTile, new QuickSettingsModel.RefreshCallback() {
+            @Override
+            public void refreshView(QuickSettingsTileView unused, State state) {
+                locationTile.setImageResource(state.iconId);
+                String locationState = mContext.getString(
+                        (state.enabled) ? R.string.accessibility_desc_on
+                                : R.string.accessibility_desc_off);
+                locationTile.setContentDescription(mContext.getString(
+                        R.string.accessibility_quick_settings_location,
+                        locationState));
+                locationTile.setText(state.label);
+            }
+        });
         parent.addView(locationTile);
     }