Android GridView-Steuerelement Ausgewählten Element die Hintergrundfarbe ändern, während Sie

Ich habe die Bildansicht mit gridview in meine android-Anwendung.so, während Sie das Bild im gridview,die Hintergrundfarbe ändern möchten.wenn ich Rückkehr ,es kommen normale Hintergrundfarbe.Wie Sie dies tun?kann mir jemand helfen dieses problem zu lösen?

Hier mein code

public class CustomGridViewExample extends Activity {

    private Integer[] mThumbIds = {
            R.drawable.android_2,
            R.drawable.android_2,
            R.drawable.android_2,
            R.drawable.android_2,
            R.drawable.android_2,
            R.drawable.android_2,
            R.drawable.android_2,
            R.drawable.android_2,
            R.drawable.android_2,
            R.drawable.android_2,


            };


    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        GridView gridview = (GridView) findViewById(R.id.gridview);
        gridview.setAdapter(new MyAdapter(this));
        gridview.setNumColumns(4);
    }

  public class MyAdapter extends BaseAdapter {

        private Context mContext;

        public MyAdapter(Context c) {
            mContext = c;
        }

        @Override
        public int getCount() {
            return mThumbIds.length;
        }

        @Override
        public Object getItem(int arg0) {
            return mThumbIds[arg0];
        }

        @Override
        public long getItemId(int arg0) {
            return arg0;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) { 

            View grid;

            if(convertView==null){
                grid = new View(mContext);
                LayoutInflater inflater=getLayoutInflater();
                grid=inflater.inflate(R.layout.mygrid_layout, parent, false);
            }else{
                grid = (View)convertView;
            }

            ImageView imageView = (ImageView)grid.findViewById(R.id.image);
            imageView.setImageResource(mThumbIds[position]);

            return grid;
        }

    }

Und zugehörige XML-Datei unter :

<GridView 
    android:id="@+id/gridview" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    android:numColumns="auto_fit" 
    android:verticalSpacing="10dp" 
    android:horizontalSpacing="10dp" 
    android:stretchMode="columnWidth" 
    android:gravity="center"
    android:scrollbars="none" />

mygrid_layout.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:background="@drawable/customshape_header"
    android:orientation="vertical">
    <ImageView 
        android:id="@+id/image" 
        android:layout_width="fill_parent"  
        android:layout_height="wrap_content"/>



</RelativeLayout>

InformationsquelleAutor della alwin | 2012-09-05