package com.kun.drawer_layout;

import java.util.Locale;

import android.app.Activity;

import android.app.Fragment;

import android.app.FragmentManager;

import android.app.SearchManager;

import android.content.Intent;

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.widget.DrawerLayout;

import android.view.LayoutInflater;

import android.view.Menu;

import android.view.MenuInflater;

import android.view.MenuItem;

import android.view.View;

import android.view.ViewGroup;

import android.widget.AdapterView;

import android.widget.ArrayAdapter;

import android.widget.ImageView;

import android.widget.ListView;

import android.widget.Toast;

public class MainActivity extends Activity {

    private DrawerLayout mDrawerLayout;

    private ListView mDrawerList;

    private ActionBarDrawerToggle mDrawerToggle;

    private CharSequence mDrawerTitle;

    private CharSequence mTitle;

    private String[] mPlanetTitles;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        mTitle = mDrawerTitle = getTitle();

        //侧边栏 item 名称

        mPlanetTitles = getResources().getStringArray(R.array.planets_array);

        //侧边栏容器对象

        mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);

        //侧边栏 Listview

        mDrawerList = (ListView) findViewById(R.id.left_drawer);

        //设置侧滑阴影,

        mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START);

        //设置侧滑 adapter ,并添加点击事件

        mDrawerList.setAdapter(new ArrayAdapter<String>(this,

                R.layout.drawer_list_item, mPlanetTitles));

        mDrawerList.setOnItemClickListener(new DrawerItemClickListener());

        //设置左上角 actionbar 图标可见

        getActionBar().setDisplayHomeAsUpEnabled(true);

        //需要api level 14  使用home-icon 可点击

        getActionBar().setHomeButtonEnabled(true);

        //actionbar 抽屉开关

        mDrawerToggle = new ActionBarDrawerToggle(

                this,                  /* host Activity */

                mDrawerLayout,         /* DrawerLayout object */

                R.drawable.ic_drawer,  /* nav drawer image to replace 'Up' caret */

                R.string.drawer_open,  /* "open drawer" description for accessibility */

                R.string.drawer_close  /* "close drawer" description for accessibility */

                ) {

            //侧滑关闭

            public void onDrawerClosed(View view) {

                getActionBar().setTitle(mTitle);//设置侧滑item名字到 actionbar上面

                invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()

            }

            //侧滑打开

            public void onDrawerOpened(View drawerView) {

                getActionBar().setTitle(mDrawerTitle);

                invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()

            }

        };

        mDrawerLayout.setDrawerListener(mDrawerToggle);

        if (savedInstanceState == null) {

            selectItem(0);

        }

    }

    @Override

    public boolean onCreateOptionsMenu(Menu menu) {

        MenuInflater inflater = getMenuInflater();

        inflater.inflate(R.menu.main, menu);

        return super.onCreateOptionsMenu(menu);

    }

    /* Called whenever we call invalidateOptionsMenu() */

    @Override

    public boolean onPrepareOptionsMenu(Menu menu) {

        // If the nav drawer is open, hide action items related to the content view

        boolean drawerOpen = mDrawerLayout.isDrawerOpen(mDrawerList);

        menu.findItem(R.id.action_websearch).setVisible(!drawerOpen);

        return super.onPrepareOptionsMenu(menu);

    }

    @Override

    public boolean onOptionsItemSelected(MenuItem item) {

         // The action bar home/up action should open or close the drawer.

         // ActionBarDrawerToggle will take care of this.

        if (mDrawerToggle.onOptionsItemSelected(item)) {

            return true;

        }

        // Handle action buttons

        switch(item.getItemId()) {

        case R.id.action_websearch:

            // create intent to perform web search for this planet

            Intent intent = new Intent(Intent.ACTION_WEB_SEARCH);

            intent.putExtra(SearchManager.QUERY, getActionBar().getTitle());

            // catch event that there's no activity to handle intent

            if (intent.resolveActivity(getPackageManager()) != null) {

                startActivity(intent);

            } else {

                Toast.makeText(this, R.string.app_not_available, Toast.LENGTH_LONG).show();

            }

            return true;

        default:

            return super.onOptionsItemSelected(item);

        }

    }

    /* The click listner for ListView in the navigation drawer */

    private class DrawerItemClickListener implements ListView.OnItemClickListener {

        @Override

        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

            selectItem(position);

        }

    }

    //显示侧滑item --内容区域

    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);

        FragmentManager fragmentManager = getFragmentManager();

        //让fragment替换 帧布局内容

        fragmentManager.beginTransaction().replace(R.id.content_frame, fragment).commit();

        //更新选中的 item ,并关闭抽屉

        mDrawerList.setItemChecked(position, true);

        setTitle(mPlanetTitles[position]);

        mDrawerLayout.closeDrawer(mDrawerList);

    }

    @Override

    public void setTitle(CharSequence title) {

        mTitle = title;

        getActionBar().setTitle(mTitle);

    }

    /**

     * When using the ActionBarDrawerToggle, you must call it during

     * onPostCreate() and onConfigurationChanged()...

     */

    @Override

    protected void onPostCreate(Bundle savedInstanceState) {

        super.onPostCreate(savedInstanceState);

        // Sync the toggle state after onRestoreInstanceState has occurred.

        mDrawerToggle.syncState();

    }

    @Override

    public void onConfigurationChanged(Configuration newConfig) {

        super.onConfigurationChanged(newConfig);

        // Pass any configuration change to the drawer toggls

        mDrawerToggle.onConfigurationChanged(newConfig);

    }

    /**

     * Fragment that appears in the "content_frame", shows a planet

     */

    public static class PlanetFragment extends Fragment {

        public static final String ARG_PLANET_NUMBER = "planet_number";

        public PlanetFragment() {

            // Empty constructor required for fragment subclasses

        }

        @Override

        public View onCreateView(LayoutInflater inflater, ViewGroup container,

                Bundle savedInstanceState) {

            View rootView = inflater.inflate(R.layout.fragment_planet, container, false);

            int i = getArguments().getInt(ARG_PLANET_NUMBER);

            String planet = getResources().getStringArray(R.array.planets_array)[i];

            int imageId = getResources().getIdentifier(planet.toLowerCase(Locale.getDefault()),

                            "drawable", getActivity().getPackageName());

            ((ImageView) rootView.findViewById(R.id.image)).setImageResource(imageId);

            getActivity().setTitle(planet);

            return rootView;

        }

    }

}

<!-- A DrawerLayout is intended to be used as the top-level content view using match_parent for both width and height to consume the full space available. -->

<android.support.v4.widget.DrawerLayout

    xmlns:android="http://schemas.android.com/apk/res/android"

    android:id="@+id/drawer_layout"

    android:layout_width="match_parent"

    android:layout_height="match_parent">

    <!-- As the main content view, the view below consumes the entire

         space available using match_parent in both dimensions. -->

    <FrameLayout

        android:id="@+id/content_frame"

        android:layout_width="match_parent"

        android:layout_height="match_parent" />

    <!-- android:layout_gravity="start" tells DrawerLayout to treat

         this as a sliding drawer on the left side for left-to-right

         languages and on the right side for right-to-left languages.

         The drawer is given a fixed width in dp and extends the full height of

         the container. A solid background is used for contrast

         with the content view. -->

    <ListView

        android:id="@+id/left_drawer"

        android:layout_width="240dp"

        android:layout_height="match_parent"

        android:layout_gravity="start"

        android:choiceMode="singleChoice"

        android:divider="@android:color/transparent"

        android:dividerHeight="0dp"

        android:background="#111"/>

    <!--

        android:choiceMode  选中状态 跟itemclick没有冲突

                none              值为0，表示无选择模式；

                singleChoice      值为1，表示最多可以有一项被选中；

                multipleChoice    值为2，表示可以多项被选中。  

        android:layout_gravity  left或right  left或start   right或end

                表示在抽屉里的效果是从左到右还是从右到左出现

     -->

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