1 files changed, 89 insertions, 0 deletions
diff --git a/library/drag-sort-listview/src/main/java/com/mobeta/android/dslv/SimpleFloatViewManager.java b/library/drag-sort-listview/src/main/java/com/mobeta/android/dslv/SimpleFloatViewManager.java
new file mode 100644
index 000000000..af1df01c0
--- /dev/null
+++ b/library/drag-sort-listview/src/main/java/com/mobeta/android/dslv/SimpleFloatViewManager.java
@@ -0,0 +1,89 @@
+package com.mobeta.android.dslv;
+
+import android.graphics.Bitmap;
+import android.graphics.Point;
+import android.graphics.Color;
+import android.widget.ListView;
+import android.widget.ImageView;
+import android.view.View;
+import android.view.ViewGroup;
+import android.util.Log;
+
+/**
+ * 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 Bitmap mFloatBitmap;
+
+    private ImageView mImageView;
+
+    private int mFloatBGColor = Color.BLACK;
+
+    private ListView mListView;
+
+    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) {
+        // Guaranteed that this will not be null? I think so. Nope, got
+        // a NullPointerException once...
+        View v = mListView.getChildAt(position + mListView.getHeaderViewsCount() - mListView.getFirstVisiblePosition());
+
+        if (v == null) {
+            return null;
+        }
+
+        v.setPressed(false);
+
+        // Create a copy of the drawing cache so that it does not get
+        // recycled by the framework when the list tries to clean up memory
+        //v.setDrawingCacheQuality(View.DRAWING_CACHE_QUALITY_HIGH);
+        v.setDrawingCacheEnabled(true);
+        mFloatBitmap = Bitmap.createBitmap(v.getDrawingCache());
+        v.setDrawingCacheEnabled(false);
+
+        if (mImageView == null) {
+            mImageView = new ImageView(mListView.getContext());
+        }
+        mImageView.setBackgroundColor(mFloatBGColor);
+        mImageView.setPadding(0, 0, 0, 0);
+        mImageView.setImageBitmap(mFloatBitmap);
+        mImageView.setLayoutParams(new ViewGroup.LayoutParams(v.getWidth(), v.getHeight()));
+
+        return mImageView;
+    }
+
+    /**
+     * This does nothing
+     */
+    @Override
+    public void onDragFloatView(View floatView, Point position, Point touch) {
+        // do nothing
+    }
+
+    /**
+     * 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;
+    }
+
+}
+