Center nav bar button icon

Center the navigation bar button icon when there is no text label.

Bug: 21465490
Change-Id: Ie2d890b29c721f6f2fb0608637b5a76ab389294e

1 files changed, 9 insertions, 0 deletions

diff --git a/library/main/src/com/android/setupwizardlib/view/NavigationBar.java b/library/main/src/com/android/setupwizardlib/view/NavigationBar.java
index bc06976..2386339 100644
--- a/library/main/src/com/android/setupwizardlib/view/NavigationBar.java
+++ b/library/main/src/com/android/setupwizardlib/view/NavigationBar.java
@@ -23,6 +23,7 @@ import android.graphics.Color;
 import android.graphics.drawable.Drawable;
 import android.os.Build.VERSION;
 import android.os.Build.VERSION_CODES;
+import android.text.TextUtils;
 import android.util.AttributeSet;
 import android.view.ContextThemeWrapper;
 import android.view.View;
@@ -153,6 +154,14 @@ public class NavigationBar extends LinearLayout implements View.OnClickListener
                 }
             }
         }
+
+        @Override
+        protected void onTextChanged(CharSequence text, int start, int lengthBefore,
+                int lengthAfter) {
+            super.onTextChanged(text, start, lengthBefore, lengthAfter);
+            setCompoundDrawablePadding(TextUtils.isEmpty(text) ? 0 : getResources()
+                    .getDimensionPixelSize(R.dimen.suw_navbar_button_drawable_padding));
+        }
     }
 
 }