Android Material风格的应用(三)--DrawerLayout

添加抽屉导航

Android Material风格的应用(一)--AppBar TabLayout
Android Material风格的应用(二)--RecyclerView
Android Material风格的应用(三)--DrawerLayout
Android Material风格的应用(四)--FloatActionButton
Android Material风格的应用(五)--CollapsingToolbar

DrawerLayout

工程源码

• 创建导航菜单
  res/menu/menu-natigation.xml

  <menu xmlns:android="http://schemas.android.com/apk/res/android">
  <group android:checkableBehavior="single"> <item android:icon="@drawable/ic_home_black_24dp" android:tint="@color/button_grey" android:title="One" /> <item android:icon="@drawable/ic_favorite_black_24dp" android:tint="@color/button_grey" android:title="Two"/> <item android:icon="@drawable/ic_bookmark_border_black_24dp" android:tint="@color/button_grey" android:title="Three"/> </group> </menu>

  创建导航的布局 res/layout/navigation.xml

  <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:orientation="vertical" android:layout_width="match_parent"
  android:layout_height="@dimen/navheader_height" android:background="?attr/colorPrimaryDark" android:padding="@dimen/md_keylines"> </LinearLayout>

  在activity_main.xml中加入DrawerLayout ,是DrawerLayout作为对顶层,使CoordinatorLayout作为它的
  子级

  <android.support.v4.widget.DrawerLayout
  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="match_parent" android:fitsSystemWindows="true"> ...... </android.support.v4.widget.DrawerLayout>

  和CoordinatorLayout的同一级添加NavigationView

  <android.support.design.widget.NavigationView
  android:layout_width="wrap_content"
  android:layout_height="match_parent"
  android:id="@+id/nav_view" android:layout_gravity="start" android:fitsSystemWindows="true" app:headerLayout="@layout/nav_header" app:menu="@menu/menu_navigation">

  在MainActivity.javaonCreate中添加相关的逻辑

  NavigationView navigationView = (NavigationView)findViewById(R.id.nav_view);
  mDrawerLayout = (DrawerLayout)findViewById(R.id.drawer);
  ActionBar supportActionBar = getSupportActionBar();
  if(supportActionBar != null){supportActionBar.setHomeAsUpIndicator(R.drawable.ic_menu_white_24dp);supportActionBar.setDisplayHomeAsUpEnabled(true);
  }
  navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {@Override public boolean onNavigationItemSelected(@NonNull MenuItem item) { item.setChecked(true); mDrawerLayout.closeDrawers();; return true; } });

  相应左上角的menu，打开导航

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {int id = item.getItemId();if(id == android.R.id.home){ mDrawerLayout.openDrawer(GravityCompat.START); }  return super.onOptionsItemSelected(item); }