android_可拽的gridview.docVIP

Android学习系列(12)--App列表之拖拽GridView 根据前面文章中ListView拖拽的实现原理，我们也是很容易实现推拽GridView的，下面我就以相同步骤实现基本的GridView拖拽效果。 因为GridView不用做分组处理，代码处理起来更简洁，而且原理前面已经讲解清楚了，代码中只是简单的过下，必要的地方简单的注释一下。 1.主界面DragGridActivity. public class DragGridActivity extends Activity { private static ListString list = null; //自定义适配器 private DragGridAdapter adapter = null; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.drag_grid_activity); initData(); //后面用到的自定义GridView DragGridView dragGridView = (DragGridView)findViewById(R.id.drag_grid); adapter = new DragGridAdapter(this, list); dragGridView.setAdapter(adapter); } public void initData(){ //数据结果 list = new ArrayListString(); for(int i=0; i12; i++){ list.add(grid_+i%12); } } } 2.主界面UI布局drag_grid_activity.xml. ?xml version=1.0 encoding=utf-8? LinearLayout xmlns:android=/apk/res/android android:orientation=vertical android:layout_width=fill_parent android:layout_height=fill_parent android:background=#ffffff android:padding=10dip com.fengjian.test.DragGridView android:id=@+id/drag_grid android:layout_width=fill_parent android:layout_height=wrap_content android:cacheColorHint= android:numColumns=3 android:stretchMode=columnWidth android:verticalSpacing=5dip android:horizontalSpacing=20dip android:background=#ffffff/ /LinearLayout 3.列表项布局drag_grid_item.xml. ?xml version=1.0 encoding=utf-8? RelativeLayout xmlns:android=/apk/res/android android:layout_width=fill_parent android:layout_height=wrap_content android:paddingLeft=5dip android:paddingRight=5dip ImageView android:id=@+id/drag_grid_item_image android:src=@drawable/grid_icon android:layout_margin=5dip