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      1 /*
      2  * Copyright (C) 2007 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 package com.android.contacts.list;
     17 
     18 import com.android.contacts.widget.TextHighlightingAnimation;
     19 
     20 import android.view.View;
     21 import android.widget.ListView;
     22 
     23 /**
     24  * A {@link TextHighlightingAnimation} that redraws just the contact display name in a
     25  * list item.
     26  */
     27 public class ContactNameHighlightingAnimation extends TextHighlightingAnimation {
     28     private final ListView mListView;
     29     private boolean mSavedScrollingCacheEnabledFlag;
     30 
     31     public ContactNameHighlightingAnimation(ListView listView, int duration) {
     32         super(duration);
     33         this.mListView = listView;
     34     }
     35 
     36     /**
     37      * Redraws all visible items of the list corresponding to contacts
     38      */
     39     @Override
     40     protected void invalidate() {
     41         int childCount = mListView.getChildCount();
     42         for (int i = 0; i < childCount; i++) {
     43             View itemView = mListView.getChildAt(i);
     44             if (itemView instanceof ContactListItemView) {
     45                 final ContactListItemView view = (ContactListItemView)itemView;
     46                 view.getNameTextView().invalidate();
     47             }
     48         }
     49     }
     50 
     51     @Override
     52     protected void onAnimationStarted() {
     53         mSavedScrollingCacheEnabledFlag = mListView.isScrollingCacheEnabled();
     54         mListView.setScrollingCacheEnabled(false);
     55     }
     56 
     57     @Override
     58     protected void onAnimationEnded() {
     59         mListView.setScrollingCacheEnabled(mSavedScrollingCacheEnabledFlag);
     60     }
     61 }
     62