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package com.cyanogenmod.eleven.dragdrop;
import android.graphics.Bitmap;
import android.graphics.Color;
import android.graphics.Point;
import android.view.View;
import android.widget.ImageView;
import android.widget.ListView;
/**
* Simple implementation of the FloatViewManager class. Uses list items as they
* appear in the ListView to create the floating View.
*/
public class SimpleFloatViewManager implements DragSortListView.FloatViewManager {
private final ListView mListView;
private Bitmap mFloatBitmap;
private int mFloatBGColor = Color.BLACK;
public SimpleFloatViewManager(ListView lv) {
mListView = lv;
}
public void setBackgroundColor(int color) {
mFloatBGColor = color;
}
/**
* This simple implementation creates a Bitmap copy of the list item
* currently shown at ListView <code>position</code>.
*/
@Override
public View onCreateFloatView(int position) {
View v = mListView.getChildAt(position + mListView.getHeaderViewsCount()
- mListView.getFirstVisiblePosition());
if (v == null) {
return null;
}
v.setPressed(false);
v.setDrawingCacheEnabled(true);
mFloatBitmap = Bitmap.createBitmap(v.getDrawingCache());
v.setDrawingCacheEnabled(false);
ImageView iv = new ImageView(mListView.getContext());
iv.setBackgroundColor(mFloatBGColor);
iv.setPadding(0, 0, 0, 0);
iv.setImageBitmap(mFloatBitmap);
return iv;
}
/**
* Removes the Bitmap from the ImageView created in onCreateFloatView() and
* tells the system to recycle it.
*/
@Override
public void onDestroyFloatView(View floatView) {
((ImageView)floatView).setImageDrawable(null);
mFloatBitmap.recycle();
mFloatBitmap = null;
}
/**
* {@inheritDoc}
*/
@Override
public void onDragFloatView(View floatView, Point position, Point touch) {
/* Nothing to do */
}
}
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