1 files changed, 40 insertions, 0 deletions
diff --git a/src/com/android/dialer/list/ContentChangedFilter.java b/src/com/android/dialer/list/ContentChangedFilter.java
new file mode 100644
index 000000000..e552aa3f0
--- /dev/null
+++ b/src/com/android/dialer/list/ContentChangedFilter.java
@@ -0,0 +1,40 @@
+package com.android.dialer.list;
+
+import android.view.View;
+import android.view.View.AccessibilityDelegate;
+import android.view.ViewGroup;
+import android.view.accessibility.AccessibilityEvent;
+
+/**
+ * AccessibilityDelegate that will filter out TYPE_WINDOW_CONTENT_CHANGED
+ * Used to suppress "Showing items x of y" from firing of ListView whenever it's content changes.
+ * AccessibilityEvent can only be rejected at a view's parent once it is generated,
+ * use addToParent() to add this delegate to the parent.
+ */
+public class ContentChangedFilter extends AccessibilityDelegate {
+  //the view we don't want TYPE_WINDOW_CONTENT_CHANGED to fire.
+  private View mView;
+
+  /**
+   * Add this delegate to the parent of @param view to filter out TYPE_WINDOW_CONTENT_CHANGED
+   */
+  public static void addToParent(View view){
+    View parent = (View) view.getParent();
+    parent.setAccessibilityDelegate(new ContentChangedFilter(view));
+  }
+
+  private ContentChangedFilter(View view){
+    super();
+    mView = view;
+  }
+  @Override
+  public boolean onRequestSendAccessibilityEvent (ViewGroup host, View child, AccessibilityEvent event){
+    if(child == mView){
+      if(event.getEventType() == AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED){
+        return false;
+      }
+    }
+    return super.onRequestSendAccessibilityEvent(host,child,event);
+  }
+
+}