专业相框设计（ImageView的堆栈应用）

新建一个继承Activity类的ImageViewStackActivity，并设置布局文件为：imageviewstack.xml。

在布局文件中添加一个ImageView和1个Button组件。

   <Button

        android:id="@+id/imageviewstack_btn01"

        style="@android:style/Widget.Button.Inset"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:text="@string/next"/>

 

    <ImageView

        android:id="@+id/imageviewstack_image01"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"/>

当点击按钮后显示下一张图片。

package lyx.feng.second;

......

public class ImageViewStackActivity extends Activity {

    private Buttonbtn = null;

    private ImageViewimage = null;

    private List<Integer>images = new ArrayList<Integer>();

    private int current = 0;

 

    @Override

    protected void onCreate(Bundle savedInstanceState) {

       super.onCreate(savedInstanceState);

       super.setContentView(R.layout.imageviewstack);

       this.btn = (Button)super.findViewById(R.id.imageviewstack_btn01);

 

       Field field[] = R.drawable.class.getDeclaredFields();

       for (int i = 0; i < field.length; i++) {

           if (field[i].getName().startsWith("icon_")) {

              try {

                  images.add(field[i].getInt(R.drawable.class));

              } catch (IllegalAccessException e) {

                  // TODO Auto-generated catch block

                  e.printStackTrace();

              } catch (IllegalArgumentException e) {

                  // TODO Auto-generated catch block

                  e.printStackTrace();

              }

           }

       }

 

       this.image = (ImageView)super

              .findViewById(R.id.imageviewstack_image01);

       this.btn.setOnClickListener(new OnClickListener() {

 

           @Override

           public void onClick(View v) {

              image.setImageResource(images.get(current %images.size()));

              current++;

           }

       });

    }

 

}