DrawerLayout 的使用 （侧拉框demo）

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"

    tools:context="com.bawei.drawer.MainActivity">

       <TextView
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
           android:text="我是主页面"/>


    <LinearLayout
        android:layout_width="240dp"
        android:layout_height="match_parent"
        android:id="@+id/ll"

        android:layout_gravity="start"
        android:background="@color/colorAccent"
        android:orientation="vertical">
        <ImageView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:src="@mipmap/ic_launcher"/>
        <ListView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/lv"/>
    </LinearLayout>
    
</android.support.v4.widget.DrawerLayout>

接下来就是 Java代码了

package com.bawei.drawer;

import android.os.Bundle;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.LinearLayout;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {


    String arr[] = {"你", "是", "不", "是", "傻", "？"};
    private ListView lv;
    private LinearLayout ll;
    private DrawerLayout dl;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        initView();


    }


    private void initView() {
        lv = (ListView) findViewById(R.id.lv);
        ll = (LinearLayout) findViewById(R.id.ll);
        dl = (DrawerLayout) findViewById(R.id.activity_main);

        //适配数据
        ArrayAdapter<String> adapter=new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,arr);
        lv.setAdapter(adapter);

        lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
                Toast.makeText(MainActivity.this,arr[i],Toast.LENGTH_SHORT).show();
                dl.closeDrawer(ll);
            }
        });
    }
}