使用DrawerLayout实现侧滑菜单-优快云博客

DrawerLayout这个类是在Support Library里的，需要加上android-support-v4.jar这个包。

<pre name="code" class="java"><?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/drawer_layout"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >

    <FrameLayout
        android:id="@+id/container"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="#FF0000" >
    </FrameLayout>

    <!-- 左边抽屉 这里必须放到一个布局容器里面或者组件-->

    <RelativeLayout 
        android:layout_gravity="start"
        android:layout_width="240dp"
        android:background="#4876FF"
        android:layout_height="fill_parent" >

        <fragment
            android:id="@+id/navigation_drawer"
            android:name="hk.wangdao.play.test.DrawerFragment"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:divider="@android:color/transparent" />
    </RelativeLayout>

</android.support.v4.widget.DrawerLayout>

注意：如果这里的第二个子元素（抽屉）,这里不能直接添加为fragment，必须是布局容器或者组件（就像这里用了一个<RelativeLayout></Relativelayout>）。

DrawerLayout的第一个子元素是主要内容，即抽屉没有打开时显示的布局。这里采用了一个FrameLayout，里面什么也没放。

DrawerLayout的第二个子元素是抽屉中的内容，即抽屉布局，这里采用了一个Fragment。你可以往fragment里面添加你自己的布局。

fragment里面的布局：

<?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" >
    
    <TextView android:id="@+id/textview"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:textSize="20sp"
        android:gravity="center"
        android:text="呵呵"/>

    <ListView
        android:id="@+id/listview"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:choiceMode="singleChoice"
        android:divider="@android:color/transparent" >
    </ListView>

</LinearLayout>

listview的布局:

<pre name="code" class="java"><TextView 
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:textSize="30sp"
    android:gravity="center"/>

主要的java代码：

<pre name="code" class="java">package hk.wangdao.play.test;

import java.util.ArrayList;
import java.util.List;

import android.app.Activity;
import android.app.Fragment;
import android.content.res.Configuration;
import android.os.Bundle;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.view.GravityCompat;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v4.widget.DrawerLayout;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;

public class DrawerLayoutActivity extends Activity {

	private DrawerLayout mDrawerLayout;
	private DrawerFragment mDrawerFragment;
	private ActionBarDrawerToggle mDrawerToggle;

	@SuppressWarnings("null")
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.drawer_layout);

		mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
		mDrawerFragment = new DrawerFragment();
		//影子
		mDrawerLayout.setDrawerShadow(null, GravityCompat.START);
		//切换
		mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
				R.drawable.ic_drawer, R.string.app_name, R.string.hello_world){

					@Override
					public void onDrawerClosed(View drawerView) {
						invalidateOptionsMenu();
					}

					@Override
					public void onDrawerOpened(View drawerView) {
						invalidateOptionsMenu(); 
					}
				
			
		};
		mDrawerLayout.setDrawerListener(mDrawerToggle);
		getActionBar().setDisplayHomeAsUpEnabled(true);
        getActionBar().setHomeButtonEnabled(true);
        getActionBar().setDisplayShowHomeEnabled(false);
	}
	
	
    @SuppressWarnings("deprecation")
	@Override
    protected void onPostCreate(Bundle savedInstanceState)
    {
        super.onPostCreate(savedInstanceState);
        // Sync the toggle state after onRestoreInstanceState has occurred.
        mDrawerToggle.syncState();
    }

    @SuppressWarnings("deprecation")
	@Override
    public void onConfigurationChanged(Configuration newConfig)
    {
        super.onConfigurationChanged(newConfig);
        mDrawerToggle.onConfigurationChanged(newConfig);
    }

    @SuppressWarnings("deprecation")
	@Override
    public boolean onOptionsItemSelected(MenuItem item)
    {
        // Pass the event to ActionBarDrawerToggle, if it returns
        // true, then it has handled the app icon touch event
        if (mDrawerToggle.onOptionsItemSelected(item))
        {
            return true;
        }
        // Handle your other action bar items...

        return super.onOptionsItemSelected(item);
    }

}

fragment的代码：

package hk.wangdao.play.test;

import android.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ListView;

public class DrawerFragment extends Fragment {

	private ListView mListView;
	private String[] itemsName;

	@Override
	public View onCreateView(LayoutInflater inflater, ViewGroup container,
			Bundle savedInstanceState) {

		View view = inflater.inflate(R.layout.drawfragment, container, false);
		mListView = (ListView) view.findViewById(R.id.listview);
		itemsName = getResources().getStringArray(R.array.itemsname);
		
		mListView.setAdapter(new ArrayAdapter<String>(getActivity(),R.layout.listitem,
				itemsName));
		return view;
	}

}<span style="color:#00cccc;">
</span>

补上说明：在主要的布局中有一个<framelayout></framlayout>布局，这个布局怎么用呢？这里可以通过添加fragment来实现

private void selectItem(int position) {
		// update the main content by replacing fragments
		Fragment fragment = new PlanetFragment();
		Bundle args = new Bundle();
		args.putInt(PlanetFragment.ARG_PLANET_NUMBER, position);
		fragment.setArguments(args);

		//通过java代码添加了Fragment
		FragmentManager fragmentManager = getFragmentManager();
		fragmentManager.beginTransaction()//获取FragmentTransaction对象
				.replace(R.id.content_frame, fragment).commit();

		// update selected item and title, then close the drawer
		mDrawerList.setItemChecked(position, true);
		//给actionbar上设置title
		setTitle(mPlanetTitles[position]);
		mDrawerLayout.closeDrawer(mDrawerList);
	}