Setting min width of content in customize tray automatically

Change-Id: Idb307dcf21422472ef098702c1bc12e99f138228

res/values-xlarge-land/dimens.xml

@@ -27,8 +27,6 @@
 
     <dimen name="customization_drawer_height">480dp</dimen>
     <dimen name="customization_drawer_content_height">420dp</dimen>
-    <dimen name="customization_drawer_content_min_width">952dp</dimen>
-    <dimen name="customization_drawer_tab_widget_width">952dp</dimen>
 
     <integer name="all_apps_view_cellCountX">7</integer>
     <integer name="all_apps_view_cellCountY">5</integer>

res/values-xlarge-port/dimens.xml

@@ -27,8 +27,6 @@
 
     <dimen name="customization_drawer_height">800dp</dimen>
     <dimen name="customization_drawer_content_height">420dp</dimen>
-    <dimen name="customization_drawer_content_min_width">640dp</dimen>
-    <dimen name="customization_drawer_tab_widget_width">700dp</dimen>
 
     <integer name="all_apps_view_cellCountX">5</integer>
     <integer name="all_apps_view_cellCountY">7</integer>

src/com/android/launcher2/CustomizePagedView.java

@@ -172,12 +172,12 @@ public class CustomizePagedView extends PagedViewWithDraggableItems
         final Resources r = context.getResources();
         setDragSlopeThreshold(
                 r.getInteger(R.integer.config_customizationDrawerDragSlopeThreshold) / 100.0f);
-        mMinPageWidth = r.getDimensionPixelSize(R.dimen.customization_drawer_content_min_width);
 
         // Create a dummy page and set it up to find out the content width (used by our parent)
         PagedViewCellLayout layout = new PagedViewCellLayout(getContext());
         setupPage(layout);
         mPageContentWidth = layout.getContentWidth();
+        mMinPageWidth = layout.getWidthBeforeFirstLayout();
 
         setVisibility(View.GONE);
         setSoundEffectsEnabled(false);

src/com/android/launcher2/PagedViewCellLayout.java

@@ -247,9 +247,12 @@ public class PagedViewCellLayout extends ViewGroup implements Page {
         // Return the distance from the left edge of the content of the leftmost icon to
         // the right edge of the content of the rightmost icon
 
-        // icons are centered within cells, find out how much offset that accounts for
-        int iconHorizontalOffset = (mCellWidth - Utilities.getIconContentSize());
-        return mCellCountX * mCellWidth + (mCellCountX - 1) * mWidthGap - iconHorizontalOffset;
+        // icons are centered within cells, find out how much padding that accounts for
+        return getWidthBeforeFirstLayout() - (mCellWidth - Utilities.getIconContentSize());
+    }
+
+    int getWidthBeforeFirstLayout() {
+        return mCellCountX * mCellWidth + (mCellCountX - 1) * mWidthGap;
     }
 
     @Override