Android中StackView的使用

迈不过友情╰ 2022-07-27 15:58 161阅读 0赞

> StackView控件是AdapterViewAnimator的子列，以堆叠的方式显示多个列表项

*  在布局文件中加入加入一个StackView控件：

<?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context="top.hellowoodes.stackview.MainActivity">
    
    
        <StackView android:layout_width="match_parent" android:layout_height="wrap_content" android:loopViews="true" android:id="@+id/stackView" />
        <LinearLayout android:orientation="horizontal" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_gravity="bottom">
    
            <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="上一个" android:id="@+id/button" android:onClick="prev" android:layout_gravity="center_vertical" />
    
            <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="下一个" android:onClick="next" android:id="@+id/button2" android:layout_gravity="bottom" />
        </LinearLayout>
    
    
    </LinearLayout>

*  在代码中为StackView适配Adapter

public class MainActivity extends AppCompatActivity { 
        StackView stackView;
    
        int[] imageIds = new int[]{
                R.drawable.a,R.drawable.b,R.drawable.c,R.drawable.d,R.drawable.e,R.drawable.f
        };
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
    
             stackView = (StackView) findViewById(R.id.stackView);
            List<Map<String, Object>> listItems = new ArrayList<>();
            for (int i = 0; i < imageIds.length; i++) {
                Map<String, Object> listItem = new HashMap<String, Object>();
                listItem.put("iamge", imageIds[i]);
                listItems.add(listItem);
            }
    
            SimpleAdapter simpleAdapter = new SimpleAdapter(this,
                    listItems,
                    R.layout.cell,
                    new String[]{
       "iamge"},
                    new int[]{R.id.image1});
            stackView.setAdapter(simpleAdapter);
        }
    
        public void prev(View view) {
            stackView.showPrevious();
        }
    
        public void next(View view) {
            stackView.showNext();
        }
    }

*  R.layout.cell布局文件：

<?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent">
    
        <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/image1" android:layout_gravity="center" />
    </LinearLayout>