setter for FlipViewController.sideBufferSize property

FlipView/FlipLibrary/src/com/aphidmobile/flip/FlipViewController.java

@@ -103,7 +103,7 @@ public boolean handleMessage(Message msg) {
       //XXX: use a SparseArray to keep the related view indices?
   private int bufferIndex = -1;
   private int adapterIndex = -1;
-  private final int sideBufferSize = 1;
+  private int sideBufferSize = 1;
 
   private float touchSlop;
 
@@ -239,6 +239,11 @@ public boolean isOverFlipEnabled() {
   public void setOverFlipEnabled(boolean overFlipEnabled) {
     this.overFlipEnabled = overFlipEnabled;
   }
+
+  public void setSideBufferSize(int sideBufferSize) {
+    Assert.assertTrue("sideBufferSize cant be less than 1", sideBufferSize >= 1);
+    this.sideBufferSize = sideBufferSize;
+  }
 
   public boolean isFlipByTouchEnabled() {
     return flipByTouchEnabled;