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