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/*******************************************************************************
* Copyright 2011, 2012 Chris Banes.
*
* 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.handmark.pulltorefresh.extras.listfragment;

import android.os.Bundle;
import android.support.v4.app.ListFragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AbsListView;
import android.widget.ListView;

import com.handmark.pulltorefresh.library.PullToRefreshBase;

abstract class PullToRefreshBaseListFragment<T extends PullToRefreshBase<? extends AbsListView>> extends ListFragment {

private T mPullToRefreshListView;

@Override
public final View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View layout = super.onCreateView(inflater, container, savedInstanceState);

ListView lv = (ListView) layout.findViewById(android.R.id.list);
ViewGroup parent = (ViewGroup) lv.getParent();

// Remove ListView and add PullToRefreshListView in its place
int lvIndex = parent.indexOfChild(lv);
parent.removeViewAt(lvIndex);
mPullToRefreshListView = onCreatePullToRefreshListView(inflater, savedInstanceState);
parent.addView(mPullToRefreshListView, lvIndex, lv.getLayoutParams());

return layout;
}

/**
* @return The {@link PullToRefreshBase} attached to this ListFragment.
*/
public final T getPullToRefreshListView() {
return mPullToRefreshListView;
}

/**
* Returns the {@link PullToRefreshBase} which will replace the ListView
* created from ListFragment. You should override this method if you wish to
* customise the {@link PullToRefreshBase} from the default.
*
* @param inflater - LayoutInflater which can be used to inflate from XML.
* @param savedInstanceState - Bundle passed through from
* {@link ListFragment#onCreateView(LayoutInflater, ViewGroup, Bundle)
* onCreateView(...)}
* @return The {@link PullToRefreshBase} which will replace the ListView.
*/
protected abstract T onCreatePullToRefreshListView(LayoutInflater inflater, Bundle savedInstanceState);

}
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