android gallery without background
<p>i followed the ApiDemo to create a gallery.</p>

<p>but i don't need the background of each item , so i marked these code:</p>

<pre><code> public ImageAdapter(Context c) {
            mContext = c;
            // See res/values/attrs.xml for the &lt;declare-styleable&gt; that defines
            // Gallery1.
**//            TypedArray a = obtainStyledAttributes(R.styleable.Gallery1);
//            mGalleryItemBackground = a.getResourceId(
//                    R.styleable.Gallery1_android_galleryItemBackground, 0);
//            a.recycle();**
        }


public View getView(int position, View convertView, ViewGroup parent) {
            ImageView i = new ImageView(mContext);

            i.setImageResource(mImageIds[position]);
            i.setScaleType(ImageView.ScaleType.FIT_XY);
            i.setLayoutParams(new Gallery.LayoutParams(48, 48));

            // The preferred Gallery item background
           **// i.setBackgroundResource(mGalleryItemBackground);**

            return i;
        }
</code></pre>

<p>then , i met a  problem :</p>

<p>the default first selected item( also the first item) is bright ,</p>

<p>but after a start to drag , and the selected item be changed , all items looked dark.....</p>

<p>i don't know how to set the alpha back , let the item looks bright.......could someone help me?</p>
