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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 
     17 package android.widget.listview;
     18 
     19 import android.view.View;
     20  import android.view.ViewGroup;
     21  import com.google.android.collect.Sets;
     22  import android.util.ListScenario;
     23  import android.util.ListItemFactory;
     24 
     25  import java.util.Set;
     26 
     27 /**
     28  * List that interleaves focusable items.
     29  */
     30 public class ListInterleaveFocusables extends ListScenario {
     31 
     32     private Set<Integer> mFocusablePositions = Sets.newHashSet(1, 3, 6);
     33 
     34     @Override
     35     protected void init(Params params) {
     36         params.setNumItems(7)
     37                 .setItemScreenSizeFactor(1.0 / 8)
     38                 .setItemsFocusable(true)
     39                 .setMustFillScreen(false);
     40     }
     41 
     42     @Override
     43     protected View createView(int position, ViewGroup parent, int desiredHeight) {
     44         if (mFocusablePositions.contains(position)) {
     45             return ListItemFactory.button(
     46                     position, parent.getContext(), getValueAtPosition(position), desiredHeight);
     47         } else {
     48             return super.createView(position, parent, desiredHeight);
     49         }
     50     }
     51 
     52     @Override
     53     public int getItemViewType(int position) {
     54         return mFocusablePositions.contains(position) ? 0 : 1;
     55     }
     56 
     57     @Override
     58     public int getViewTypeCount() {
     59         return 2;
     60     }
     61 
     62 
     63 }
     64