NavigationView使用简介

NavigationView 导航视图

导航视图(NavigationView)通常与抽屉布局(DrawerLayout)结合使用,实现了良好的侧滑交互体验。从常规开发来说，侧滑一般都是左侧实现侧滑，抽屉布局可有三个子布局。（注意：第一个子布局一定要是主界面，其次的两个子布局就是左右两侧的布局，左右两侧只放一个也可）

关联点

主要讲下继承，api,属性等等

继承(sdk25)

api

void    addHeaderView(View view)
//Adds a View as a header of the navigation menu.
void    draw(Canvas canvas)
//Manually render this view (and all of its children) to the given Canvas.
int getHeaderCount()
//Gets the number of headers in this NavigationView.
View    getHeaderView(int index)
//Gets the header view at the specified position.
Drawable    getItemBackground()
//Returns the background drawable for our menu items.
ColorStateList  getItemIconTintList()
//Returns the tint which is applied to our menu items' icons.
ColorStateList  getItemTextColor()
//Returns the tint which is applied to our menu items' icons.
Menu    getMenu()
//Returns the Menu instance associated with this navigation view.
View    inflateHeaderView(int res)
//Inflates a View and add it as a header of the navigation menu.
void    inflateMenu(int resId)
//Inflate a menu resource into this navigation view.
void    removeHeaderView(View view)
//Removes a previously-added header view.
void    setCheckedItem(int id)
//Sets the currently checked item in this navigation menu.
void    setItemBackground(Drawable itemBackground)
//Set the background of our menu items to a given resource.
void    setItemBackgroundResource(int resId)
//Set the background of our menu items to the given resource.
void    setItemIconTintList(ColorStateList tint)
//Set the tint which is applied to our menu items' icons.
void    setItemTextAppearance(int resId)
//Set the text appearance of the menu items to a given resource.
void    setItemTextColor(ColorStateList textColor)
//Set the text color to be used on our menu items.
void    setNavigationItemSelectedListener(NavigationView.OnNavigationItemSelectedListener listener)
//Set a listener that will be notified when a menu item is selected.

属性

1.Android:layout_gravity="left"属性表示布局自身在父布局的那个位置，对于Drawerlayout来说，是指其子布局从其那边滑出
NavigationView通常设置 android:layout_gravity="start"
2.app:headerLayout="@layout/header_layout"表示引用一个头布局文件，用来展示NavigationView的头布局
3.app:menu="@menu/main"表示引用一个menu作为下面的点击项

基本使用

1.在应用的build.gradle中添加support:design支持库,版本就看自己的了

compile ‘com.android.support:design:25.3.1’

2.布局

navigationview的头布局

navigationview的menu

代码：

public class NavigationActivity extends AppCompatActivity
    implements NavigationView.OnNavigationItemSelectedListener {

    private DrawerLayout mDrawerLayout;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_navi2);

        init();
    }

    private void init() {
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
        //下面的代码主要通过actionbardrawertoggle将toolbar与drawablelayout关联起来
        ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
                this, mDrawerLayout, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
        mDrawerLayout.addDrawerListener(toggle);
        toggle.syncState();

        NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
        //设置navigationview的menu监听
        navigationView.setNavigationItemSelectedListener(this);
    }

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

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.navi, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }

    @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) {

        }

        mDrawerLayout.closeDrawer(GravityCompat.START);
        return true;
    }
}

效果：

体验起来效果还是很好的，建议学习新知识，如果精力有限浅尝一下就好，能够实现基本使用，有新需求时再去深入学习，毕竟做开发这行要学的东西很多，不可能面面俱到的，扎实的基础才会帮助你快速学习上手。

注意点：

设置统一菜单图标颜色
app:itemIconTint="@color/colorPrimary"
设置非统一菜单图标颜色
调用 NavigationView 的 setItemIconTintList(ColorStateList tint) 方法，传入 null 参数：
navigationView.setItemIconTintList(null);
菜单实现分割线
这个实现就要靠group,就像示例代码中
动态修改菜单列表
MenuItem menuItem = navigationView.getMenu().findItem(R.id.some_menu_item);
menuItem.setVisible(false); // true 为显示，false 为隐藏

以上就是对NavigationView的简单的讲解，Demo已传github

Star地址：https://github.com/Kriy/AndroidMaterialDesignUI ,谢谢支持