Android Open Source - SyncedListView Infinite List Adapter






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Back to project page SyncedListView.

License

The source code is released under:

Apache License

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Java Source Code

/*
 * Copyright 2013 Wenhui Yao/*from w  w w.  j  av  a  2s . c  o  m*/
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.wenhui.syncedListView.lib;

import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;

public abstract class InfiniteListAdapter extends BaseAdapter {

  public abstract int getItemCount();
  public abstract Object getItemAt(int position);
  public abstract View getItemView(int position, View convertView, ViewGroup parent);
  
  @Override
  final public int getCount() {
        if( getItemCount() <= 0 ) {
            return 0;
        }
    return Integer.MAX_VALUE;
  }

  @Override
  final public Object getItem(int position) {
    int newPosition = getRealItemPosition(position);
    return getItemAt(newPosition);
  }

  @Override
  public long getItemId(int position) {
    return position;
  }

  @Override
  final public View getView(int position, View convertView, ViewGroup parent) {
    int newPosition = getRealItemPosition(position);
    return getItemView(newPosition, convertView, parent);
  }
  
  private int getRealItemPosition(int position){
    if( getItemCount() == 0 ){ return 0; }
    return position % getItemCount();
  }

}




Java Source Code List

com.wenhui.syncedListView.demo.demo.Images.java
com.wenhui.syncedListView.demo.demo.SyncListViewActivity.java
com.wenhui.syncedListView.demo.demo.SyncListViewContainerFragment.java
com.wenhui.syncedListView.lib.InfiniteListAdapter.java
com.wenhui.syncedListView.lib.SyncedListLayout.java