Android中DrawerLayout实现侧滑菜单效果

众所周知，android里面我们很熟悉的一个功能，侧滑菜单效果在以前我们大部分都是用的slidingmenu这个开源框架，自从谷歌官方新出的一个DrawerLayout控件之后，越来越多的应用开始使用谷歌的官方的控件写这个效果了。
话不多说，先来发图以表我滴诚意：

开始写代码

DrawerLayout 是v4包里面的，所以项目里面需要添加v4包，具体怎么添加就不多说了，
NavigationView需要在build.gradle里面添加compile ‘com.android.support:design:25.1.0'

activity_main.xml

<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:app="http://schemas.android.com/apk/res-auto"
 xmlns:tools="http://schemas.android.com/tools"
 android:id="@+id/drawer_layout"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:fitsSystemWindows="true"
 tools:openDrawer="start">

 <!-- 右边视图 -->
 <include
 layout="@layout/app_bar_main"
 android:layout_width="match_parent"
 android:layout_height="match_parent" />

 <!-- 左边菜单 -->
 <android.support.design.widget.NavigationView
 android:id="@+id/nav_view"
 android:layout_width="wrap_content"
 android:layout_height="match_parent"
 android:layout_gravity="start"
 android:fitsSystemWindows="true"
 app:headerLayout="@layout/nav_header_main"
 app:menu="@menu/activity_main_drawer" />

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

然后在res文件夹里面添加一个menu菜单文件夹，已经添加的就不用添加了

上面的代码里面NavigationView里面有个 app:menu=”@menu/activity_main_drawer”对应如下:
添加一个菜单文件，名字随意，我的是activity_main_drawer.xml

activity_main_drawer.xml

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">

 <group android:checkableBehavior="single">
 <item
  android:id="@+id/nav_camera"
  android:icon="@drawable/ic_menu_camera"
  android:title="第一行" />
 <item
  android:id="@+id/nav_gallery"
  android:icon="@drawable/ic_menu_gallery"
  android:title="第二行" />
 <item
  android:id="@+id/nav_slideshow"
  android:icon="@drawable/ic_menu_slideshow"
  android:title="第三行" />
 <item
  android:id="@+id/nav_manage"
  android:icon="@drawable/ic_menu_manage"
  android:title="第四行" />
 </group>

 <item android:title="Communicate">
 <menu>
  <item
  android:id="@+id/nav_share"
  android:icon="@drawable/ic_menu_share"
  android:title="第五行" />
  <item
  android:id="@+id/nav_send"
  android:icon="@drawable/ic_menu_send"
  android:title="第六行" />
 </menu>
 </item>

</menu>

再添加一个布局

上面的代码里面app:headerLayout=”@layout/nav_header_main”对应如下:
添加一个布局，名字是nav_header_main.xml

nav_header_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:app="http://schemas.android.com/apk/res-auto"
 android:layout_width="match_parent"
 android:layout_height="@dimen/nav_header_height"
 android:background="@drawable/side_nav_bar"
 android:gravity="bottom"
 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"
 android:theme="@style/ThemeOverlay.AppCompat.Dark">

 <ImageView
 android:id="@+id/imageView"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:paddingTop="@dimen/nav_header_vertical_spacing"
 app:srcCompat="@android:drawable/sym_def_app_icon" />

 <TextView
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:paddingTop="@dimen/nav_header_vertical_spacing"
 android:text="哈哈哈"
 android:textAppearance="@style/TextAppearance.AppCompat.Body1" />

 <TextView
 android:id="@+id/textView"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:text="123456789@qq.com" />

</LinearLayout>

MainActivity：

public class MainActivity extends BaseActivity implements NavigationView.OnNavigationItemSelectedListener {

 private LinearLayout right;
 private NavigationView left;
 private boolean isDrawer=false;
 private DrawerLayout drawer;



 @Override
 public int getLayoutId() {
 return R.layout.activity_main;
 }

 @Override
 public void initPresenter() {

 }

 @Override
 public void initView() {
 drawer = (DrawerLayout) findViewById(R.id.drawer_layout);


 right = (LinearLayout) findViewById(R.id.right);
 left = (NavigationView) findViewById(R.id.nav_view);

 NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
 navigationView.setNavigationItemSelectedListener(this);

 right.setOnTouchListener(new View.OnTouchListener() {
  @Override
  public boolean onTouch(View view, MotionEvent motionEvent) {
  if(isDrawer){
   return left.dispatchTouchEvent(motionEvent);
  }else{
   return false;
  }
  }
 });
 drawer.setDrawerListener(new DrawerLayout.DrawerListener() {
  @Override
  public void onDrawerSlide(View drawerView, float slideOffset) {
  isDrawer=true;
  //获取屏幕的宽高
  WindowManager manager = (WindowManager) getSystemService(Context.WINDOW_SERVICE);
  Display display = manager.getDefaultDisplay();
  //设置右面的布局位置 根据左面菜单的right作为右面布局的left 左面的right+屏幕的宽度（或者right的宽度这里是相等的）为右面布局的right
  right.layout(left.getRight(), 0, left.getRight() + display.getWidth(), display.getHeight());
  }
  @Override
  public void onDrawerOpened(View drawerView) {}
  @Override
  public void onDrawerClosed(View drawerView) {
  isDrawer=false;
  }
  @Override
  public void onDrawerStateChanged(int newState) {}
 });


 }



 @Override
 public void onBackPressed() {
 if (drawer.isDrawerOpen(GravityCompat.START)) {
  drawer.closeDrawer(GravityCompat.START);
 } else {
  super.onBackPressed();
 }
 }




 @SuppressWarnings("StatementWithEmptyBody")
 @Override
 public boolean onNavigationItemSelected(MenuItem item) {
 // Handle navigation view item clicks here.
 int id = item.getItemId();

 if (id == R.id.nav_camera) {
  // Handle the camera action
 } else if (id == R.id.nav_gallery) {

 } else if (id == R.id.nav_slideshow) {

 } else if (id == R.id.nav_manage) {

 } else if (id == R.id.nav_share) {

 } else if (id == R.id.nav_send) {

 }

 DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
 drawer.closeDrawer(GravityCompat.START);
 return true;
 }

drawer.openDrawer(GravityCompat.START);//打开滑动菜单

drawer.closeDrawer(GravityCompat.START);//关闭滑动菜单

drawer.isDrawerOpen(GravityCompat.START);//判断滑动菜单是否打开

具体源码demo下载地址

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