DrawerLayout抽屉布局，现在主流App是越来越多使用DrawerLayout，因为这样出来的效果是比较炫酷的吧！其实抽屉界面很简单，没有网上说的那么复杂，今天我就给大家介绍一种比较简单的抽屉布局，DrawerLayout，

效果图：

1:主布局文件（分为2块，第一块是主页面内容，第二块是抽屉页面内容，这是固定的，必须是这样的格式）

<LinearLayout xmlns:android= "http://schemas.android.com/apk/res/android"
    xmlns:tools= "http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

<android.support.v4.widget.DrawerLayout
        android :id="@+id/drawer_layout"
        android :layout_width="match_parent"
        android :layout_height="match_parent">
       
        <!-- 主界面-->
       
        <LinearLayout
            android:id="@+id/content_frame"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="#FF0000">

<Button
                android:id= "@+id/btn"
                android:layout_width= "match_parent"
                android:layout_height= "wrap_content"
                android:text= "open" />

</LinearLayout >

<!-- 抽屉界面 --> //抽屉页面可以是一个Fragment，或者是ListView，什么都可以，这里以Fragment为列子，因为Fragment可以添加一个布局文件

        <FrameLayout
            android:id="@+id/fragment_layout"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_gravity="start"//从左边滑动进来，右边是end，一定要写，不然没有效果
            android:background="#9053ff59"></ FrameLayout>
    </android.support.v4.widget.DrawerLayout >

</LinearLayout >

2:Fragment布局文件

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android= "http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >
    <Button
        android :layout_width="match_parent"
        android :layout_height="wrap_content"
        android :text="按钮一"/>
    <Button
        android :layout_width="match_parent"
        android :layout_height="wrap_content"
        android :text="按钮二"/>

<Button
        android :id="@+id/item_frgment_bt"
        android :layout_width="match_parent"
        android :layout_height="wrap_content"
        android :text="按钮三"/>

<Button
        android :layout_width="match_parent"
        android :layout_height="wrap_content"
        android :text="按钮四"/>

</LinearLayout >

4：Fragment类

package com.example.yangjie.drawerlayout;

import android.app.Fragment;
import android.os.Bundle;
import android.support.annotation.Nullable;
;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.Toast;

/**
* Created by Administrator on 2015/10/17.
*/
public class DrawerFragment extends Fragment {
    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        return inflater.inflate(R.layout.item_frgement,container,false);//将布局文件绑定到Fragment中
    }

@Override
    public void onViewCreated(View view, Bundle savedInstanceState) {
        super .onViewCreated(view, savedInstanceState);

Button  button=(Button)view.findViewById(R.id.item_frgment_bt);

button.setOnClickListener(new View.OnClickListener() { //给抽屉界面的按钮散设置了一个箭头

@Override
            public void onClick(View v) {
                Toast.makeText (getActivity(),"点击了按钮3" ,Toast.LENGTH_SHORT).show();
            }
        });
    }

}

5:Activity

public class MainActivity extends AppCompatActivity {
    private DrawerLayout mDrawerLayout = null ;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super .onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

FragmentManager fragmentManager=getFragmentManager();
        FragmentTransaction ft=fragmentManager.beginTransaction();

DrawerFragment  drawerFragment=new DrawerFragment();

ft.add(R.id.fragment_layout,drawerFragment,"标签1");//将fragment绑定到已经占有位置的FrameLayout中

ft.commit();

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

Button button = (Button) findViewById(R.id.btn);
        button.setOnClickListener(new View.OnClickListener() {

@Override
            public void onClick(View v) {
                // 按钮按下，将抽屉打开
                mDrawerLayout.openDrawer(Gravity. LEFT); //从左打开

}
        });
    }

}