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package org.holoeverywhere.app;
import org.holoeverywhere.LayoutInflater;
import org.holoeverywhere.R;
import org.holoeverywhere.widget.ListView;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.AnimationUtils;
import android.widget.AdapterView;
import android.widget.ListAdapter;
import android.widget.TextView;
public class ListFragment extends Fragment {
private ListAdapter mAdapter;
private CharSequence mEmptyText;
private View mEmptyView;
final private Handler mHandler = new Handler();
private ListView mList;
private View mListContainer;
private boolean mListShown;
final private AdapterView.OnItemClickListener mOnClickListener = new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View v, int position,
long id) {
onListItemClick((ListView) parent, v, position, id);
}
};
private View mProgressContainer;
final private Runnable mRequestFocus = new Runnable() {
@Override
public void run() {
mList.focusableViewAvailable(mList);
}
};
private TextView mStandardEmptyView;
private void ensureList() {
if (mList != null) {
return;
}
View root = getView();
if (root == null) {
throw new IllegalStateException("Content view not yet created");
}
if (root instanceof ListView) {
mList = (ListView) root;
} else {
mStandardEmptyView = (TextView) root
.findViewById(R.id.internalEmpty);
if (mStandardEmptyView == null) {
mEmptyView = root.findViewById(android.R.id.empty);
} else {
mStandardEmptyView.setVisibility(View.GONE);
}
mProgressContainer = root.findViewById(R.id.progressContainer);
mListContainer = root.findViewById(R.id.listContainer);
View rawListView = root.findViewById(android.R.id.list);
if (!(rawListView instanceof ListView)) {
if (rawListView == null) {
throw new RuntimeException(
"Your content must have a ListView whose id attribute is "
+ "'android.R.id.list'");
}
throw new RuntimeException(
"Content has view with id attribute 'android.R.id.list' "
+ "that is not a ListView class");
}
mList = (ListView) rawListView;
if (mEmptyView != null) {
mList.setEmptyView(mEmptyView);
} else if (mEmptyText != null) {
mStandardEmptyView.setText(mEmptyText);
mList.setEmptyView(mStandardEmptyView);
}
}
mListShown = true;
mList.setOnItemClickListener(mOnClickListener);
if (mAdapter != null) {
ListAdapter adapter = mAdapter;
mAdapter = null;
setListAdapter(adapter);
} else {
if (mProgressContainer != null) {
setListShown(false, false);
}
}
mHandler.post(mRequestFocus);
}
protected View getEmptyView() {
return mEmptyView;
}
public ListAdapter getListAdapter() {
return mAdapter;
}
public ListView getListView() {
ensureList();
return mList;
}
public long getSelectedItemId() {
ensureList();
return mList.getSelectedItemId();
}
public int getSelectedItemPosition() {
ensureList();
return mList.getSelectedItemPosition();
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
return inflater.inflate(R.layout.list_content, container, false);
}
@Override
public void onDestroyView() {
mHandler.removeCallbacks(mRequestFocus);
mList = null;
mListShown = false;
mEmptyView = mProgressContainer = mListContainer = null;
mStandardEmptyView = null;
super.onDestroyView();
}
public void onListItemClick(ListView l, View v, int position, long id) {
}
@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
ensureList();
}
public void setEmptyText(CharSequence text) {
ensureList();
if (mStandardEmptyView == null) {
throw new IllegalStateException(
"Can't be used with a custom content view");
}
mStandardEmptyView.setText(text);
if (mEmptyText == null) {
mList.setEmptyView(mStandardEmptyView);
}
mEmptyText = text;
}
public void setListAdapter(ListAdapter adapter) {
boolean hadAdapter = mAdapter != null;
mAdapter = adapter;
if (mList != null) {
mList.setAdapter(adapter);
if (!mListShown && !hadAdapter) {
// The list was hidden, and previously didn't have an
// adapter. It is now time to show it.
setListShown(true, getView().getWindowToken() != null);
}
}
}
public void setListShown(boolean shown) {
setListShown(shown, true);
}
private void setListShown(boolean shown, boolean animate) {
ensureList();
if (mProgressContainer == null) {
throw new IllegalStateException(
"Can't be used with a custom content view");
}
if (mListShown == shown) {
return;
}
mListShown = shown;
if (shown) {
if (animate) {
mProgressContainer.startAnimation(AnimationUtils.loadAnimation(
getActivity(), R.anim.fade_out));
mListContainer.startAnimation(AnimationUtils.loadAnimation(
getActivity(), R.anim.fade_in));
} else {
mProgressContainer.clearAnimation();
mListContainer.clearAnimation();
}
mProgressContainer.setVisibility(View.GONE);
mListContainer.setVisibility(View.VISIBLE);
} else {
if (animate) {
mProgressContainer.startAnimation(AnimationUtils.loadAnimation(
getActivity(), R.anim.fade_in));
mListContainer.startAnimation(AnimationUtils.loadAnimation(
getActivity(), R.anim.fade_out));
} else {
mProgressContainer.clearAnimation();
mListContainer.clearAnimation();
}
mProgressContainer.setVisibility(View.VISIBLE);
mListContainer.setVisibility(View.GONE);
}
}
public void setListShownNoAnimation(boolean shown) {
setListShown(shown, false);
}
public void setSelection(int position) {
ensureList();
mList.setSelection(position);
}
}
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