NavigationView 使用

Design Support Library 提供了NavigationView 来帮助我们实
现抽屉菜单界面，和普通的侧拉菜单实现方式一样，所有的东西还是都放在一个DrawerLayout 中，用 NavigationView 来替代我们此前自定义的控件。

使用

xml 布局代码

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:fitsSystemWindows="true"
    android:id="@+id/drawer_layout">
    <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"
        app:menu="@menu/draw_view">

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

属性	作用
android:layout_gravity	设置侧滑从哪边划出(start，left，right)
app:headerLayout	设置头布局文件
app:menu	menu 点击项

res/layout/nav_header.xml

<?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="150dp"
    android:background="?attr/colorPrimary"
    android:orientation="horizontal"
    android:theme="@style/ThemeOverlay.AppCompat.Dark">

    <ImageView
        android:layout_width="100dp"
        android:layout_height="100dp"
        android:layout_gravity="center_vertical"
        android:layout_marginLeft="50dp"
        android:background="@mipmap/ic_launcher"/>

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_vertical"
        android:layout_marginLeft="10dp"
        android:text="yuzhiyi"
        android:textAppearance="@style/TextAppearance.AppCompat.Body1"
        android:textSize="20sp"/>
</LinearLayout>

res/layout/draw_view.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_home"
            android:icon="@mipmap/img00"
            android:title="Home" />
        <item
            android:id="@+id/nav_message"
            android:icon="@mipmap/img05"
            android:title="Message" />
        <item
            android:id="@+id/nav_friends"
            android:icon="@mipmap/img10"
            android:title="Friends" />
        <item
            android:id="@+id/nav_disuccion"
            android:icon="@mipmap/img15"
            android:title="Disuccion" />
    </group>
    <item android:title="Sub items">
        <menu>
            <item
                android:id="@+id/nav_sub_items_1"
                android:icon="@mipmap/img20"
                android:title="Sub items 1" />
            <item
                android:id="@+id/nav_sub_items_2"
                android:icon="@mipmap/img24"
                android:title="Sub items 2" />
        </menu>
    </item>
</menu>

java 代码

public class NavigationViewActivity extends AppCompatActivity{

    private DrawerLayout mDrawerLayout;
    private NavigationView mNavigationView;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        supportRequestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.activity_navifationview);
        mDrawerLayout = findViewById(R.id.drawer_layout);
        mNavigationView = findViewById(R.id.nav_view);
        mNavigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
            @Override
            public boolean onNavigationItemSelected(@NonNull MenuItem item) {
                item.setChecked(true);
                String title = item.getTitle().toString();
                Toast.makeText(NavigationViewActivity.this, title, Toast.LENGTH_SHORT).show();
                mDrawerLayout.closeDrawers();
                return true;
            }
        });
    }
}

实现效果

NavigationView.gif