package com.marshalchen.common.demoofui.observablescrollview;
import android.app.Activity;
import android.os.Build;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewTreeObserver;
import android.widget.ArrayAdapter;
import com.github.ksoichiro.android.observablescrollview.ObservableListView;
import com.github.ksoichiro.android.observablescrollview.ObservableScrollViewCallbacks;
import com.marshalchen.common.demoofui.R;
import java.util.ArrayList;
import java.util.List;
public class ViewPagerTabListViewFragment extends Fragment {
public static final String ARG_INITIAL_POSITION = "ARG_INITIAL_POSITION";
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.observable_scroll_view_fragment_listview, container, false);
Activity parentActivity = getActivity();
final ObservableListView listView = (ObservableListView) view.findViewById(R.id.list);
listView.addHeaderView(inflater.inflate(R.layout.observable_scroll_view_padding, null));
List<String> items = new ArrayList<String>();
for (int i = 1; i <= 100; i++) {
items.add("Item " + i);
}
listView.setAdapter(new ArrayAdapter<String>(parentActivity, android.R.layout.simple_list_item_1, items));
if (parentActivity instanceof ObservableScrollViewCallbacks) {
// Scroll to the specified position after layout
Bundle args = getArguments();
if (args != null && args.containsKey(ARG_INITIAL_POSITION)) {
final int initialPosition = args.getInt(ARG_INITIAL_POSITION, 0);
ViewTreeObserver vto = listView.getViewTreeObserver();
vto.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
listView.getViewTreeObserver().removeGlobalOnLayoutListener(this);
} else {
listView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
}
// scrollTo() doesn't work, should use setSelection()
listView.setSelection(initialPosition);
}
});
}
listView.setScrollViewCallbacks((ObservableScrollViewCallbacks) parentActivity);
}
return view;
}
}