隐藏小抽屉的使用

找了个例子练习隐藏小抽屉SlidingDrawer 不要忘记设置其handle和Content属性，前者是一个布局，而后者是这个布局所处的位置，还要在activity中重写小抽屉打开和关闭时的事件，也可以修改小抽屉的方向属性，使其变为垂直方向的。其值的设置方式是“@+id/id”，并且在后来的布局中id则是"@id/id",又一次可以练习BaseAdapter,重写它的各个方法，尤其返回值是View类型的方法中LayoutInflater类。

Activity:
import android.app.Activity;
import android.os.Bundle;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.SlidingDrawer;

public class SlidingDrawerpractice extends Activity
{
	private GridView gvGridView;
	private SlidingDrawer sdDrawer;
	private ImageView imageView;
	private int[] icons={R.drawable.alarm,R.drawable.calendar,R.drawable.camera,R.drawable.clock,R.drawable.music};
	private String[] items={"alarm","calender","camera","clock","music"};
 
  /** Called when the activity is first created. */
  @Override
  public void onCreate(Bundle savedInstanceState)
  {
    super.onCreate(savedInstanceState);
    /* 加载main.xml Layout */
    setContentView(R.layout.main);
    /* 初始化对象 */
    gvGridView=(GridView)findViewById(R.id.myContent1);
    sdDrawer=(SlidingDrawer)findViewById(R.id.drawer1);
    imageView=(ImageView)findViewById(R.id.myImage1);
    MyGridViewAdapter adapter=new MyGridViewAdapter(this, items, icons);
    gvGridView.setAdapter(adapter);
    sdDrawer.setOnDrawerOpenListener(new SlidingDrawer.OnDrawerOpenListener() {
		
		@Override
		public void onDrawerOpened() {
			// TODO Auto-generated method stub
			imageView.setImageResource(R.drawable.icon);
		}
	});
    sdDrawer.setOnDrawerCloseListener(new SlidingDrawer.OnDrawerCloseListener() {
		
		@Override
		public void onDrawerClosed() {
			// TODO Auto-generated method stub
			imageView.setImageResource(R.drawable.icon);
		}
	});
  }
}

GridViewAdapter:

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

public class MyGridViewAdapter extends BaseAdapter{

	private Context ctxContext;
	private String[] _items;
	private int[] _icons;
	public MyGridViewAdapter(Context ctx,String[] items,int[] icons)
	{
		this.ctxContext=ctx;
		this._items=items;
		this._icons=icons;
	}
	@Override
	public int getCount() {
		// TODO Auto-generated method stub
		return _items.length;
	}

	@Override
	public Object getItem(int position) {
		// TODO Auto-generated method stub
		return _items[position];
	}

	@Override
	public long getItemId(int position) {
		// TODO Auto-generated method stub
		return position;
	}

	@Override
	public View getView(int position, View convertView, ViewGroup parent) {
		// TODO Auto-generated method stub
		LayoutInflater inflater=LayoutInflater.from(ctxContext);
		convertView=inflater.inflate(R.layout.grid, null);
		ImageView imageView=(ImageView) convertView.findViewById(R.id.icon);
		imageView.setImageResource(_icons[position]);
		TextView textView=(TextView)convertView.findViewById(R.id.text);
		textView.setText(_items[position]);
		return convertView;
	}

}

Xml 配置文件：


<?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:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="@string/hello"
    android:textSize="16sp"
  />
  <SlidingDrawer 
    android:id="@+id/drawer1" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    android:handle="@+id/layout1" 
    android:content="@+id/myContent1" 
    android:orientation="horizontal"
  >
    <LinearLayout 
      android:id="@id/layout1" 
      android:layout_width="35px" 
      android:layout_height="fill_parent"
      android:background="@drawable/black"
      android:gravity="center" 
    >
      <ImageView
        android:id="@+id/myImage1" 
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content" 
        android:src="@drawable/icon"
      />
    </LinearLayout>
    <GridView 
      android:id="@id/myContent1" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:numColumns="2"
      android:background="@drawable/black" 
      android:gravity="center"
    />       
  </SlidingDrawer>
</RelativeLayout>


<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:orientation="vertical"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
>
  <ImageView 
    android:id="@+id/icon"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center"
  />
  <TextView 
    android:id="@+id/text"
    android:layout_width="fill_parent"
    android:layout_height="20sp"
    android:gravity="center"
    android:textColor="#0033ff"
  />
</LinearLayout>