Android中SlidingDrawer介绍

 转载出处：

 http://blog.csdn.net/wdaming1986/article/details/6898374

安卓中1.5后加入了SlidingDrawer【隐藏式抽屉】，设计原理在你的UI布局有限的情况下，放不下太多的控件的时候，可以考虑用这个隐藏式抽屉。用SlidingDrawer注意两点，一个是android：handle（委托要展开的图片加载Layout配置） 和android：content（要展开的Layout Content）。

下面看程序截图：

                 程序开始界面：

　　　　　　

点击右边的箭头后出现的界面：

在SlidingDrawerActivity工程下：

一、在com.cn.daming包下的SlidingDrawerMainActivity.java类中的代码：

public class SlidingDrawerMainActivity extends Activity {

    private GridView gridView;
    private SlidingDrawer slidingDrawer;
    private ImageView imageView;
    private TextView textview;
    private int[] icons={
        R.drawable.title1, R.drawable.title2,
        R.drawable.title3, R.drawable.title4,
        R.drawable.title5, R.drawable.title6
    };
    
    private String[] items={
        "Phone", "Message", "AddImage", "Music", "Telephone", "SMS"    
    };
    
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        gridView = (GridView)findViewById(R.id.mycontent);
        slidingDrawer = (SlidingDrawer)findViewById(R.id.sliding_drawer);
        imageView = (ImageView)findViewById(R.id.my_image);
        textview = (TextView)findViewById(R.id.text_view);
        MyGridViewAdapter adapter = new MyGridViewAdapter(this, items, icons);
        gridView.setAdapter(adapter);
        gridView.setOnItemClickListener(new OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView<?> parent, View view,
                    int position, long id) {
                Log.e("yxc", "position = " + position);
            }
            
        });
        slidingDrawer.setOnDrawerOpenListener(new SlidingDrawer.OnDrawerOpenListener() {
            
            public void onDrawerOpened() {
                textview.setVisibility(View.GONE);
                imageView.setImageResource(R.drawable.down1);
            }
        });
        slidingDrawer.setOnDrawerCloseListener(new SlidingDrawer.OnDrawerCloseListener() {
            
            public void onDrawerClosed() {
                textview.setVisibility(View.VISIBLE);
                imageView.setImageResource(R.drawable.up1);
            }
        });
    }

    @Override
    public void onConfigurationChanged(Configuration newConfig) {
        super.onConfigurationChanged(newConfig);
    }
}

二、在com.cn.daming包下的MyGridViewAdapter.java类中的代码：

public class MyGridViewAdapter extends BaseAdapter{

    private Context context;
    private String[] items;
    private int[] icons;
    
    public MyGridViewAdapter(Context context, String[] items, int[] icons){
        this.context = context;
        this.items = items;
        this.icons = icons;
    }
    
    public int getCount() {
        return items.length;
    }

    public Object getItem(int arg0) {
        return items[arg0];
    }

    public long getItemId(int position) {
        return position;
    }

    public View getView(int position, View convertView, ViewGroup parent) {
        LayoutInflater layoutInflater = LayoutInflater.from(context);
        View view = (View)layoutInflater .inflate(R.layout.grid, null);
        ImageView imageView = (ImageView)view.findViewById(R.id.image_view);
        TextView textview = (TextView)view.findViewById(R.id.text_view);
        imageView.setImageResource(icons[position]);
        textview.setText(items[position]);
        return view;
    }

}

三、在res包下的layout下的main.xml中的代码：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
   >
    <TextView
        android:id="@+id/text_view"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="10dip"
        android:text="@string/hello"
        android:textSize="10pt"
        android:gravity="center"
    />
    <SlidingDrawer
        android:id="@+id/sliding_drawer"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:handle="@+id/layout1"
        android:content="@+id/mycontent"
        android:orientation="vertical"
     >
        <LinearLayout
           android:id="@id/layout1"
           android:layout_width="fill_parent"
           android:layout_height="35px"
           android:gravity="center"
           android:background="#00000000"
        >
           <ImageView
               android:id="@+id/my_image"
               android:layout_width="wrap_content"
               android:layout_height="wrap_content"
               android:src="@drawable/up1"
           />
        </LinearLayout>
        <GridView
            android:id="@id/mycontent"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:paddingTop="20dip"
            android:numColumns="3"
            android:gravity="center"
            android:background="#ff000000"
        />
    </SlidingDrawer>
</RelativeLayout>

四、在res包下的layout下的grid.xml中的代码：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical"
    >
    <ImageView
        android:id="@+id/image_view"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="5dip"
        android:layout_marginLeft="27dip"
    />
    <TextView
        android:id="@+id/text_view"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="15dip"
        android:layout_marginLeft="27dip"
    />
</LinearLayout>

补充说明：

也可以设置垂直的隐藏拉抽屉方式，设置SlidingDrawer中的android:orientation="vertical"。

看下截图效果：

                     点击下拉图标后界面：                                                          点击上拉图标后的界面：

                                        

 

完整代码下载链接地址：http://download.csdn.net/detail/wdaming1986/3731750