本文地址:http://blog.csdn.net/u011181236/article/details/51985242

1.布局要注意的就是 
Android:layout_gravity=”right”

<android.support.design.widget.NavigationView

        android:id="@+id/nav_view"

        android:layout_width="wrap_content"

        android:layout_height="match_parent"

        android:layout_gravity="right"

        android:fitsSystemWindows="true"

        app:headerLayout="@layout/nav_header_main"

        app:menu="@menu/activity_main_drawer" />

2.Java代码 
这个是设置toolbar里左上角menu按钮的点击事件

toolbar.setNavigationOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                if (!drawer.isDrawerOpen(setDrawerGravity())) {

                    drawer.openDrawer(setDrawerGravity());

                }

            }

        });

3.这里只有4个属性可用

Gravity.LEFT to move the left drawer or Gravity.RIGHT for the right.GravityCompat.START or GravityCompat.END may also be used.

private int setDrawerGravity() {

        return Gravity.RIGHT;

    }

4.返回键处理

@Override

    public void onBackPressed() {

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

        if (drawer.isDrawerOpen(setDrawerGravity())) {

            drawer.closeDrawer(setDrawerGravity());

        } else {

            super.onBackPressed();

        }

    }

5.NavigationView 的item点击处理

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

        navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener(){

            @Override

            public boolean onNavigationItemSelected(MenuItem item) {

                // Handle navigation view item clicks here.

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

                drawer.closeDrawer(setDrawerGravity());

                int id = item.getItemId();

                if (id == R.id.nav_camera) {

                    // Handle the camera action

                }

                return true;

            }

        });

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