在android中制作RTL导航抽屉

我想使我的导航从

右向左

打开。但一旦我改变了这些步骤中的任何一个，我的程序就会面临错误，在运行应用程序后单击导航按钮，程序就会关闭

My main_activity.xml

<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" />

我在

.xml

主活动和

java

主活动中将

的“开始”改为“结束”

，强制关闭

我将“开始”改为“正确”，强制关闭

我使用了

RTL库

，但再次被强制关闭

---

提前感谢。

问题是您的自定义重力没有定义，返回NULL。 首先，您应该更新

menu.xml

，并为右菜单创建一个图标，如下所示：

<item
        android:id="@+id/menu_right"
        android:orderInCategory="100"
        android:showAsAction="always"
        android:icon="@android:drawable/ic_dialog_dialer"
        android:title="@string/action_menuright"
/>

同样地，我也这么说：

public class MainActivity extends AppCompatActivity
    implements NavigationView.OnNavigationItemSelectedListener {
         <   here:  add this line:  >
    DrawerLayout drawer;

---

现在一切都好了。

你说的强制关闭是什么意思？你有什么错误吗？没有我的adb日志是空的！！不要表现出任何错误！但当我点击应用程序中的导航抽屉时，程序关闭了！您使用哪个版本的支持库？android{compileSdkVersion 23 buildToolsVersion“23.0.2”defaultConfig{minSdkVersion 14 targetSdkVersion 23}compile'com.android.support:appcompat-v7:23.4.0'compile'com.android.support:design:23.4.0'compile'com.android.support:support:support vector drawable:23.4.0'您得到的是一个

IllegalArgumentException

，因为

ActionBarDrawerToggle

只适用于具有

START

重力、开箱即用的抽屉。您确实应该这样做尝试找出如何在logcat中获取堆栈跟踪，因为知道将来如何获取堆栈跟踪将非常有帮助。使用此解决方案，

ActionBarDrawerToggle

根本不被使用，因此您可以删除它，而不是初始化它，然后禁用它。我同意。这是一个类型化的解决方案，我可能没有关注这一点这里不再需要某些部分。

import android.app.FragmentManager; import android.os.Bundle;  import android.support.design.widget.NavigationView;  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;

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);

        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.home_page) {
            Home_page_fragment homeFragment = new Home_page_fragment();
            FragmentManager manager = getFragmentManager();
            manager.beginTransaction().replace(R.id.mainContent , homeFragment, homeFragment.getTag()).commit();
        } else if (id == R.id.tour_page) {
            Tour_page_fragment tourFragment = new Tour_page_fragment();
            FragmentManager manager = getFragmentManager();
            manager.beginTransaction().replace(R.id.mainContent , tourFragment, tourFragment.getTag()).commit();

        } else if (id == R.id.lstour_page) {
            LsTour_page_fragment LstourFragment = new LsTour_page_fragment();
            FragmentManager manager = getFragmentManager();
            manager.beginTransaction().replace(R.id.mainContent , LstourFragment, LstourFragment.getTag()).commit();

        } else if (id == R.id.hotel_page) {

        } else if (id == R.id.agency_page) {

        } else if (id == R.id.news_page) {

        }else if (id == R.id.logbook_page) {

        }else if (id == R.id.message_page) {

        }else if (id == R.id.favorite_page) {

        }

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

<item
        android:id="@+id/menu_right"
        android:orderInCategory="100"
        android:showAsAction="always"
        android:icon="@android:drawable/ic_dialog_dialer"
        android:title="@string/action_menuright"
/>

toggle.syncState();
toggle.setDrawerIndicatorEnabled(false);//this is added line

public class MainActivity extends AppCompatActivity
    implements NavigationView.OnNavigationItemSelectedListener {
         <   here:  add this line:  >
    DrawerLayout drawer;

public boolean onOptionsItemSelected(MenuItem item) {
    int id = item.getItemId();

    // noinspection SimplifiableIfStatement
    if (id == R.id.menu_right) {
        if(drawer.isDrawerOpen(Gravity.RIGHT) ) {
             drawer.closeDrawer(Gravity.RIGHT);
        }
        else{
             drawer.openDrawer(Gravity.RIGHT);
        }
        return true;
    }

    return super.onOptionsItemSelected(item);
}