如何擺脫一個導航欄並將其合並為一個在Android？

Question

我對Android很新。 所以，請幫我解決這個狡猾的問題，我有兩個導航欄。 我想合並兩者並獲取一個導航欄中的所有元素在此處輸入圖像描述這是我的MainActivity

這是我的manifest.xml

    <?xml version="1.0" encoding="utf-8"?>
    <manifest xmlns:android="http://schemas.android.com/apk/res/android"
        package="info.androidhive.navigationdrawer">

        <uses-permission android:name="android.permission.INTERNET" />

        <application
            android:allowBackup="true"
            android:icon="@mipmap/ic_launcher"
            android:label="@string/app_name"
            android:supportsRtl="true"
            android:theme="@style/AppTheme">
            <activity
                android:name=".activity.LoginActivity"
                >
                <intent-filter>
                    <action android:name="android.intent.action.MAIN" />

                    <category android:name="android.intent.category.LAUNCHER" />
                </intent-filter>
            </activity>
            <activity
                android:name=".activity.AboutUsActivity"
                android:label="@string/activity_title_about_us" />
            <activity
                android:name=".activity.PrivacyPolicyActivity"
                android:label="@string/activity_title_privacy_policy" />
            <activity android:name=".activity.MainActivity"
                android:label="Main"
                >

            </activity>
        </application>

    </manifest>

這是我的activity_main.xml

    <?xml version="1.0" encoding="utf-8"?>
    <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">

        <include
            layout="@layout/app_bar_main"
            android:layout_width="match_parent"
            android:layout_height="match_parent" />

        <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>

這是我的app_bar_main.xml

         <?xml version="1.0" encoding="utf-8"?>
            <android.support.design.widget.CoordinatorLayout             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:layout_width="match_parent"
                android:layout_height="match_parent"
                android:fitsSystemWindows="true"
                tools:context="info.androidhive.navigationdrawer.activity.MainActivity">

                <android.support.design.widget.AppBarLayout
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:theme="@style/AppTheme.AppBarOverlay">

                    <android.support.v7.widget.Toolbar
                        android:id="@+id/toolbar"
                        android:layout_width="match_parent"
                        android:layout_height="?attr/actionBarSize"
                        android:background="?attr/colorPrimary"
                        app:popupTheme="@style/AppTheme.PopupOverlay" />

                </android.support.design.widget.AppBarLayout>

                <FrameLayout
                    android:id="@+id/frame"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    app:layout_behavior="@string/appbar_scrolling_view_behavior">            </FrameLayout>

                <android.support.design.widget.FloatingActionButton
                    android:id="@+id/fab"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_gravity="bottom|end"
                    android:layout_margin="@dimen/fab_margin"
                    app:backgroundTint="@color/colorPrimary"
                    app:srcCompat="@android:drawable/ic_dialog_email" />

            </android.support.design.widget.CoordinatorLayout>

這是我的nav_header_main.xml

    <?xml version="1.0" encoding="utf-8"?>
    <RelativeLayout         xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:id="@+id/view_container"
        android:layout_width="match_parent"
        android:layout_height="@dimen/nav_header_height"
        android:gravity="bottom"
        android:orientation="vertical"
        android:theme="@style/ThemeOverlay.AppCompat.Dark">

        <ImageView
            android:id="@+id/img_header_bg"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:scaleType="fitXY"
            android:src="@mipmap/ic_launcher" />

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerVertical="true"
            android:orientation="vertical"
            android:padding="@dimen/activity_horizontal_margin">

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

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

            <TextView
                android:id="@+id/website"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content" />

        </LinearLayout>


    </RelativeLayout>

這是我的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_home"
                android:icon="@drawable/ic_home_black_24dp"
                android:title="@string/nav_home" />
            <item
                android:id="@+id/nav_photos"
                android:icon="@drawable/ic_photo_library_black_24dp"
                android:title="@string/nav_photos" />
            <item
                android:id="@+id/nav_movies"
                android:icon="@drawable/ic_local_movies_black_24dp"
                android:title="@string/nav_movies" />

            <item
                android:id="@+id/nav_notifications"
                android:icon="@drawable/ic_notifications_black_24dp"
                android:title="@string/nav_notifications" />

            <item
                android:id="@+id/nav_settings"
                android:icon="@drawable/ic_settings_black_24dp"
                android:title="@string/nav_settings" />
        </group>

        <item android:title="Other">
            <menu>
                <item
                    android:id="@+id/nav_about_us"
                    android:title="@string/nav_about_us" />
                <item
                    android:id="@+id/nav_privacy_policy"
                    android:title="@string/privacy_policy" />
            </menu>
        </item>

    </menu>

原始代碼取自http://www.androidhive.info/2013/11/android-sliding-menu-using-navigation-drawer/

先感謝您！ :)

編輯這是我的MainActivity.java

    package info.androidhive.navigationdrawer.activity;

    import android.content.Intent;
    import android.content.SharedPreferences;
    import android.os.Bundle;
    import android.os.Handler;
    import android.support.design.widget.FloatingActionButton;
    import android.support.design.widget.NavigationView;
    import android.support.design.widget.Snackbar;
    import android.support.v4.app.Fragment;
    import android.support.v4.app.FragmentTransaction;
    import android.support.v4.view.GravityCompat;
    import android.support.v4.widget.DrawerLayout;
    import android.support.v7.app.ActionBarDrawerToggle;
    import android.support.v7.app.AppCompatActivity;
    import android.support.v7.widget.Toolbar;
    import android.view.Menu;
    import android.view.MenuItem;
    import android.view.View;
    import android.widget.ImageView;
    import android.widget.TextView;
    import android.widget.Toast;

    import com.bumptech.glide.Glide;
    import com.bumptech.glide.load.engine.DiskCacheStrategy;

    import info.androidhive.navigationdrawer.R;
    import info.androidhive.navigationdrawer.fragment.HomeFragment;
    import info.androidhive.navigationdrawer.fragment.MoviesFragment;
    import info.androidhive.navigationdrawer.fragment.NotificationsFragment;
    import info.androidhive.navigationdrawer.fragment.PhotosFragment;
    import info.androidhive.navigationdrawer.fragment.SettingsFragment;
    import info.androidhive.navigationdrawer.helper.SessionManager;
    import info.androidhive.navigationdrawer.other.CircleTransform;

    public class MainActivity extends AppCompatActivity {

        private NavigationView navigationView;
        private DrawerLayout drawer;
        private View navHeader;
        private ImageView imgNavHeaderBg, imgProfile;
        private TextView txtName, txtWebsite;
        private Toolbar toolbar;
        private FloatingActionButton fab;

        // urls to load navigation header background image
        // and profile image
        private static final String urlNavHeaderBg =         "http://api.androidhive.info/images/nav-menu-header-bg.jpg";
        private static final String urlProfileImg =         "https://lh3.googleusercontent.com/eCtE_G34M9ygdkmOpYvCag1vBARCmZwnVS6rS5t4JLzJ6        QgQSBquM0nuTsCpLhYbKljoyS-txg";
        private SessionManager session;
        // index to identify current nav menu item
        public static int navItemIndex = 0;

        // tags used to attach the fragments
        private static final String TAG_HOME = "home";
        private static final String TAG_PHOTOS = "photos";
        private static final String TAG_MOVIES = "movies";
        private static final String TAG_NOTIFICATIONS = "notifications";
        private static final String TAG_SETTINGS = "settings";
        public static String CURRENT_TAG = TAG_HOME;

        // toolbar titles respected to selected nav menu item
        private String[] activityTitles;

        // flag to load home fragment when user presses back key
        private boolean shouldLoadHomeFragOnBackPress = true;
        private Handler mHandler;


        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
            toolbar = (Toolbar) findViewById(R.id.toolbar);
           // setSupportActionBar(toolbar);
            session = new SessionManager(getApplicationContext());
            mHandler = new Handler();

            drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
            navigationView = (NavigationView) findViewById(R.id.nav_view);
            fab = (FloatingActionButton) findViewById(R.id.fab);

            // Navigation view header
            navHeader = navigationView.getHeaderView(0);
            txtName = (TextView) navHeader.findViewById(R.id.name);
            txtWebsite = (TextView) navHeader.findViewById(R.id.website);
            imgNavHeaderBg = (ImageView)         navHeader.findViewById(R.id.img_header_bg);
            imgProfile = (ImageView)         navHeader.findViewById(R.id.img_profile);

            // load toolbar titles from string resources
            activityTitles =         getResources().getStringArray(R.array.nav_item_activity_titles);

            fab.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    Snackbar.make(view, "Replace with your own action",          Snackbar.LENGTH_LONG)
                            .setAction("Action", null).show();
                }
            });

             // load nav menu header data
            loadNavHeader();

            // initializing navigation menu
            setUpNavigationView();

            if (savedInstanceState == null) {
                navItemIndex = 0;
                CURRENT_TAG = TAG_HOME;
                loadHomeFragment();
             }
              if (!session.isLoggedIn()) {
                 logoutUser();
             }
            SharedPreferences prefs = getSharedPreferences("LoginActivity",
                     MODE_PRIVATE); String string =          prefs.getString("output",
                     "nothing to display");
          }

        /***
         * Load navigation menu header information
         * like background image, profile image
         * name, website, notifications action view (dot)
           */
         private void loadNavHeader() {
             // name, website
            txtName.setText("Ravi Tamada");
            txtWebsite.setText("www.androidhive.info");

            // loading header background image
            Glide.with(this).load(urlNavHeaderBg)
                    .crossFade()
                    .diskCacheStrategy(DiskCacheStrategy.ALL)
                    .into(imgNavHeaderBg);

              // Loading profile image
             Glide.with(this).load(urlProfileImg)
                      .crossFade()
                      .thumbnail(0.5f)
                    .bitmapTransform(new CircleTransform(this))
                    .diskCacheStrategy(DiskCacheStrategy.ALL)
                    .into(imgProfile);

            // showing dot next to notifications label
            navigationView.getMenu().getItem(3).setActionView(R.layout.menu_dot);
         }

        /***
          * Returns respected fragment that user
          * selected from navigation menu
          */
        private void loadHomeFragment() {
            // selecting appropriate nav menu item
            selectNavMenu();

            // set toolbar title
            setToolbarTitle();

            // if user select the current navigation menu again, don't do         anything
            // just close the navigation drawer
            if (getSupportFragmentManager().findFragmentByTag(CURRENT_TAG)         != null) {
                 drawer.closeDrawers();

                // show or hide the fab button
                toggleFab();
                return;
             }

            // Sometimes, when fragment has huge data, screen seems hanging
            // when switching between navigation menus
            // So using runnable, the fragment is loaded with cross fade          effect
            // This effect can be seen in GMail app
             Runnable mPendingRunnable = new Runnable() {
                @Override
                public void run() {
                    // update the main content by replacing fragments
                    Fragment fragment = getHomeFragment();
                    FragmentTransaction fragmentTransaction =         getSupportFragmentManager().beginTransaction();
                     fragmentTransaction.setCustomAnimations(android.R.anim.fade_in,
                            android.R.anim.fade_out);
                     fragmentTransaction.replace(R.id.frame, fragment,         CURRENT_TAG);
                    fragmentTransaction.commitAllowingStateLoss();
                }
             };

            // If mPendingRunnable is not null, then add to the message queue
            if (mPendingRunnable != null) {
                mHandler.post(mPendingRunnable);
            }

            // show or hide the fab button
            toggleFab();

            //Closing drawer on item click
            drawer.closeDrawers();

            // refresh toolbar menu
            invalidateOptionsMenu();
        }

         private Fragment getHomeFragment() {
            switch (navItemIndex) {
                case 0:
                    // home
                    HomeFragment homeFragment = new HomeFragment();
                    return homeFragment;
                case 1:
                    // photos
                    PhotosFragment photosFragment = new PhotosFragment();
                    return photosFragment;
                case 2:
                    // movies fragment
                    MoviesFragment moviesFragment = new MoviesFragment();
                    return moviesFragment;
                case 3:
                    // notifications fragment
                    NotificationsFragment notificationsFragment = new          NotificationsFragment();
                    return notificationsFragment;

                case 4:
                    // settings fragment
                    SettingsFragment settingsFragment = new         SettingsFragment();
                     return settingsFragment;
                default:
                    return new HomeFragment();
            }
        }

        private void setToolbarTitle() {
            getSupportActionBar().setTitle(activityTitles[navItemIndex]);
        }

        private void selectNavMenu() {
            navigationView.getMenu().getItem(navItemIndex).setChecked(true);
         }

        private void setUpNavigationView() {
            //Setting Navigation View Item Selected Listener to handle the         item click of the navigation menu
            navigationView.setNavigationItemSelectedListener(new         NavigationView.OnNavigationItemSelectedListener() {

                 // This method will trigger on item Click of navigation menu
                @Override
                public boolean onNavigationItemSelected(MenuItem menuItem) {

                      //Check to see which item was being clicked and perform appropriate action
                    switch (menuItem.getItemId()) {
                         //Replacing the main content with ContentFragment Which is our Inbox View;
                        case R.id.home:
                            navItemIndex = 0;
                            CURRENT_TAG = TAG_HOME;
                            break;
                        case R.id.nav_photos:
                             navItemIndex = 1;
                            CURRENT_TAG = TAG_PHOTOS;
                            break;
                        case R.id.nav_movies:
                            navItemIndex = 2;
                            CURRENT_TAG = TAG_MOVIES;
                            break;
                        case R.id.nav_notifications:
                            navItemIndex = 3;
                            CURRENT_TAG = TAG_NOTIFICATIONS;
                            break;
                        case R.id.nav_settings:
                            navItemIndex = 4;
                            CURRENT_TAG = TAG_SETTINGS;
                            break;
                        case R.id.nav_about_us:
                            // launch new intent instead of loading fragment
                            startActivity(new Intent(MainActivity.this,          AboutUsActivity.class));
                            drawer.closeDrawers();
                            return true;
                        case R.id.nav_privacy_policy:
                             // launch new intent instead of loading fragment
                            startActivity(new Intent(MainActivity.this,          PrivacyPolicyActivity.class));
                             drawer.closeDrawers();
                             return true;
                         default:
                             navItemIndex = 0;
                    }

                     //Checking if the item is in checked state or not, if not make it in checked state
                    if (menuItem.isChecked()) {
                        menuItem.setChecked(false);
                     } else {
                         menuItem.setChecked(true);
                     }
                     menuItem.setChecked(true);

                     loadHomeFragment();

                     return true;
                }
            });


            ActionBarDrawerToggle actionBarDrawerToggle = new         ActionBarDrawerToggle(this, drawer, toolbar, R.string.openDrawer,          R.string.closeDrawer) {

                @Override
                 public void onDrawerClosed(View drawerView) {
                    // Code here will be triggered once the drawer closes as         we dont want anything to happen so we leave this blank
                    super.onDrawerClosed(drawerView);
                }

                @Override
                public void onDrawerOpened(View drawerView) {
                    // Code here will be triggered once the drawer open as         we dont want anything to happen so we leave this blank
                    super.onDrawerOpened(drawerView);
                }
            };

            //Setting the actionbarToggle to drawer layout
             drawer.setDrawerListener(actionBarDrawerToggle);

            //calling sync state is necessary or else your hamburger icon         wont show up
            actionBarDrawerToggle.syncState();
        }

        @Override
         public void onBackPressed() {
            if (drawer.isDrawerOpen(GravityCompat.START)) {
                drawer.closeDrawers();
                return;
            }

            // This code loads home fragment when back key is pressed
            // when user is in other fragment than home
            if (shouldLoadHomeFragOnBackPress) {
                 // checking if user is on other navigation menu
                 // rather than home
                if (navItemIndex != 0) {
                    navItemIndex = 0;
                    CURRENT_TAG = TAG_HOME;
                    loadHomeFragment();
                    return;
                }
            }

            super.onBackPressed();
        }

         @Override
         public boolean onCreateOptionsMenu(Menu menu) {
            // Inflate the menu; this adds items to the action bar if it is         present.

            // show menu only when home fragment is selected
            if (navItemIndex == 0) {
                getMenuInflater().inflate(R.menu.main, menu);
            }

            // when fragment is notifications, load the menu created for         notifications
            if (navItemIndex == 3) {
                getMenuInflater().inflate(R.menu.notifications, 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_logout) {
                logoutUser();
           }

            // user is in notifications fragment
            // and selected 'Mark all as Read'
            if (id == R.id.action_mark_all_read) {
                Toast.makeText(getApplicationContext(), "All notifications         marked as read!", Toast.LENGTH_LONG).show();
             }

             // user is in notifications fragment
            // and selected 'Clear All'
            if (id == R.id.action_clear_notifications) {
                Toast.makeText(getApplicationContext(), "Clear all         notifications!", Toast.LENGTH_LONG).show();
            }

            return super.onOptionsItemSelected(item);
        }

        // show or hide the fab
        private void toggleFab() {
            if (navItemIndex == 0)
                fab.show();
            else
                fab.hide();
        }
        private void logoutUser() {
            session.setLogin(false);



            // Launching the login activity
            Intent intent = new Intent(getApplicationContext(),         LoginActivity.class);
            startActivity(intent);
            finish();
        }

    }

Answer 1

你可以通過簡單的步驟做到這一點。 不要從布局中刪除android.support.design.widget.AppBarLayout ，而是將屬性app:elevation="0dp"到其中。 您的最終布局將是：

<android.support.design.widget.AppBarLayout
            android:id="@+id/appBarLayout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:elevation="0dp">
            ...
</android.support.design.widget.AppBarLayout>

Answer 2

activity_main.xml中

<?xml version="1.0" encoding="utf-8"?>
<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">

<include
    layout="@layout/app_bar_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

<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>

app_bar_main.xml

<?xml version="1.0" encoding="utf-8"?><android.support.design.widget.CoordinatorLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="videoeditor.myapplication.MainActivity"><android.support.design.widget.AppBarLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:theme="@style/AppTheme.AppBarOverlay">

    <android.support.v7.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        android:background="?attr/colorPrimary"
        app:popupTheme="@style/AppTheme.PopupOverlay" />

</android.support.design.widget.AppBarLayout>

<FrameLayout
    android:id="@+id/frame"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"></FrameLayout>

<include layout="@layout/content_main" />

<android.support.design.widget.FloatingActionButton
    android:id="@+id/fab"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="bottom|end"
    android:layout_margin="@dimen/fab_margin"
    app:srcCompat="@android:drawable/ic_dialog_email" />

    </android.support.design.widget.CoordinatorLayout>

content_main.xml

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context="videoeditor.myapplication.MainActivity"
tools:showIn="@layout/app_bar_main">


<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Hello World!"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintLeft_toLeftOf="parent"
    app:layout_constraintRight_toRightOf="parent"
    app:layout_constraintTop_toTopOf="parent" /></RelativeLayout>

java的

public class MainActivity extends AppCompatActivity
    implements NavigationView.OnNavigationItemSelectedListener {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);

    FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
    fab.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
                    .setAction("Action", null).show();
        }
    });

    DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
    ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
            this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
    drawer.setDrawerListener(toggle);
    toggle.syncState();

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

@Override
public void onBackPressed() {
    DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
    if (drawer.isDrawerOpen(GravityCompat.START)) {
        drawer.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.main, 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) {

    }

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

}

你的意思是這個導航欄

如果是這樣，請將此代碼放在Styles.xml中

 <resources>

    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
    <item name="colorAccent">@color/colorAccent</item>
</style>

<style name="AppThemee.NoActionBar">
    <item name="windowActionBar">false</item>
    <item name="windowNoTitle">true</item>
</style></resources>