Make ViewPagerTabs and FABController RTL aware

* Underline in ViewPagerTabStrips is correctly drawn in RTL mode
* Clicking on ViewPagerTabs propogates correct onPageSelected position
to ViewPager
* FAB is now end aligned instead of right aligned
* ViewPager in Dialer is correctly reversed and behaves correctly
* Call Log groups headers in call log are now correctly aligned in RTL
Bug: 16162264
Bug: 16464471
Change-Id: I2db6b9147a628a68fba5bbbdb7276855d483bad5

1 files changed, 9 insertions, 0 deletions

diff --git a/src/com/android/dialer/util/DialerUtils.java b/src/com/android/dialer/util/DialerUtils.java
index 2b4a74ccc..07a330e6c 100644
--- a/src/com/android/dialer/util/DialerUtils.java
+++ b/src/com/android/dialer/util/DialerUtils.java
@@ -34,6 +34,7 @@ import com.android.contacts.common.CallUtil;
 import com.android.dialer.R;
 
 import java.util.List;
+import java.util.Locale;
 
 /**
  * General purpose utility methods for the Dialer.
@@ -138,4 +139,12 @@ public class DialerUtils {
         final CharSequence separator = resources.getString(R.string.list_delimeter);
         return TextUtils.join(separator, list);
     }
+
+    /**
+     * @return True if the application is currently in RTL mode.
+     */
+    public static boolean isRtl() {
+        return TextUtils.getLayoutDirectionFromLocale(Locale.getDefault()) ==
+            View.LAYOUT_DIRECTION_RTL;
+    }
 }