SlidingDrawer

SlidingDrawer是一种抽屉型的组件，当用户选择打开此抽屉之后，会得到一些可以使用的“程序集”，这样当一个界面要摆放多个组件的时候，使用此组件就可以很好的解决布局空间紧张的问题

public class MySlidingDrawerDemo extends Activity {
    private String data[] = { "北京魔乐科技", "", "讲师：李兴华",
            "中国高校讲课联盟", ""};        // 定义显示的数据
    private ListView listView;                 // 定义ListView组件
    private SlidingDrawer slidingDrawer ;            // 定义SlidingDrawer
    private ImageView handle ;                // 定义图片显示
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        super.setContentView(R.layout.main);
        LinearLayout layout = (LinearLayout) super.findViewById(R.id.content) ;
        this.listView = new ListView(this) ;                // 实例化组件
        listView.setAdapter(new ArrayAdapter<String>(this,            // 将数据包装
                android.R.layout.simple_expandable_list_item_1,     // 每行显示一条数据
                this.data));                // 设置组件内容
        layout.addView(this.listView) ;            // 增加组件
        this.slidingDrawer = (SlidingDrawer) super.findViewById(R.id.slidingdrawer) ;
        this.handle = (ImageView) super.findViewById(R.id.handle) ;// 取得组件
        this.slidingDrawer.setOnDrawerOpenListener(new OnDrawerOpenListenerImpl()) ;
        this.slidingDrawer.setOnDrawerCloseListener(new OnDrawerCloseListenerImpl()) ;
        this.slidingDrawer.setOnDrawerScrollListener(new OnDrawerScrollListenerImpl());
    }
    private class OnDrawerOpenListenerImpl implements OnDrawerOpenListener {
        @Override
        public void onDrawerOpened() {
            handle.setImageResource(R.drawable.ico_right) ;    // 窗口打开监听
        }
    }
    private class OnDrawerCloseListenerImpl implements OnDrawerCloseListener {
        @Override
        public void onDrawerClosed() {
            handle.setImageResource(R.drawable.ico_left) ;    // 窗口关闭监听
        }
    }
    private class OnDrawerScrollListenerImpl implements OnDrawerScrollListener {
        @Override
        public void onScrollEnded() {            // 拖动结束
            Toast.makeText(MySlidingDrawerDemo.this, "窗口拖动结束。", Toast.LENGTH_SHORT).show();
        }
        @Override
        public void onScrollStarted() {            // 拖动开始
            Toast.makeText(MySlidingDrawerDemo.this, "正在拖动窗口。", Toast.LENGTH_SHORT).show();
        }
    }
}

020716_隐式抽屉组件：SlidingDrawer.ppt