StackView堆视图实现叠放效果

布局代码：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="center"
    android:orientation="horizontal">

    <StackView
        android:id="@+id/mStackView"
        android:layout_width="200dp"
        android:layout_height="200dp"
        android:layerType="hardware"
        android:loopViews="false" />
</LinearLayout>

页面代码：

public class StackViewActivity extends Activity {
    StackView stackView;
    int[] imageIds = new int[]{R.drawable.c1,R.drawable.c2,R.drawable.c3,R.drawable.c4};

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_stack);

        stackView = (StackView) findViewById(R.id.mStackView);
        //创建一个List对象，List对象的元素是Map
        List<Map<String,Object>> listItems = new ArrayList<Map<String,Object>>();
        for (int i = 0; i < imageIds.length; i++) {
            Map<String,Object> listItem = new HashMap<String,Object>();
            listItem.put("image",imageIds[i]);
            listItems.add(listItem);
        }
        //创建一个SimpleAdapter
        SimpleAdapter simpleAdapter = new SimpleAdapter(this,listItems,R.layout.item_stack_image,new String[]{"image"},new int[]{R.id.iv_city});
        stackView.setAdapter(simpleAdapter);
    }

}