添加工具栏后，Lollipop上的导航抽屉为空

Question

不久前，我有一个导航抽屉在工作，但后来我决定将其更新为使用工具栏，而不是默认的支持操作栏。现在，当我点击汉堡包菜单时，导航抽屉没有打开。然而，我可以从左向右滑动并打开它。问题是，它现在是空的。

值-v21/样式。xml

    <style name="Material" parent="Theme.AppCompat.Light.NoActionBar">
    <item name="colorPrimary">@color/app_green</item>
    <item name="colorPrimaryDark">@color/app_green_dark</item>
    <item name="android:textColorPrimary">@color/action_bar_text</item>
    <item name="android:textColor">@color/secondary_text_color</item>
    <item name="android:color">@color/secondary_text_color</item>
    <item name="android:colorAccent">@color/app_green</item>
    <item name="android:editTextColor">@color/secondary_text_color</item>

    <item name="textHeaderMaxLines">@integer/text_header_max_lines</item>
    <item name="trackAbstractMaxLines">@integer/track_abstract_max_lines</item>
    <item name="activatableItemBackground">@drawable/activatable_item_background</item>

    <!-- ActionBar Styles -->
    <item name="android:windowNoTitle">true</item>
    <!--We will be using the toolbar so no need to show ActionBar-->
    <item name="android:windowActionBar">false</item>

    <item name="android:windowDrawsSystemBarBackgrounds">true</item>
    <item name="android:statusBarColor">?android:attr/colorPrimaryDark</item>

    <!-- Global UI Assignments -->
    <item name="android:spinnerStyle">@style/Material.Widget.Spinner</item>

    <item name="android:buttonStyle">@style/Material.Widget.Button</item>
    <item name="android:checkboxStyle">@style/Material.Widget.Checkbox</item>
    <item name="android:textAppearance">@android:style/TextAppearance</item>

    <item name="android:popupWindowStyle">@style/Material.Window.Popup</item>

    <!-- ViewPager -->
    <item name="vpiCirclePageIndicatorStyle">@style/Material.Activity.Login.ViewPagerIndicator.CustomCircle</item>
    <item name="buttonBarStyle">?android:buttonBarStyle</item>
    <item name="buttonBarButtonStyle">?android:buttonBarButtonStyle</item>
    <item name="indeterminateProgressStyle">?android:indeterminateProgressStyle</item>
</style>

导航U抽屉。xml

<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">

<!-- The main content view. Must be first child because XML ordering implies stacking
 context -->
<LinearLayout
    android:layout_height="match_parent"
    android:layout_width="match_parent"
    android:orientation="vertical">

    <!-- Our App Bar. Placed here so we can draw over it with the navigation drawer. -->
    <android.support.v7.widget.Toolbar
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/app_bar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:minHeight="?android:attr/actionBarSize"
        android:background="?android:attr/colorPrimary" />

    <!-- Our actual content view. -->
    <FrameLayout
        android:id="@+id/drawer_content"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical" />

</LinearLayout>

<!-- The navigation drawer itself. -->
<ListView
    android:id="@+id/drawer_list"
    android:layout_width="300dp"
    android:layout_height="match_parent"
    android:choiceMode="singleChoice"
    android:divider="@android:color/transparent"
    android:dividerHeight="0dp"
    android:layout_gravity="start"
    android:background="@android:color/white"
    android:fitsSystemWindows="true"
/>

ctivity.java

    public class NavigationDrawerActivity extends ActionBarActivity
  implements AdapterView.OnItemClickListener {

  private DrawerLayout mDrawerLayout;
  private ListView mDrawerList;
  private LayoutInflater mInflater;
  private NavDrawerItemAdapter mAdapter;
  private ActionBarDrawerToggle mDrawerToggle;

  // Our "App bar". This will only be populated if the current SDK is >= 21. Otherwise, we'll use an
  // action bar that will be populated when the app first starts.
  private Toolbar mAppBar;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.navigation_drawer);
    mInflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);

    setupNavigationDrawer();
  }

  @Override
  protected void onPostCreate(Bundle savedInstanceState) {
    super.onPostCreate(savedInstanceState);

    // Sync the toggle state after onRestoreInstanceState has occurred.
    mDrawerToggle.syncState();
  }

  @Override
  public void onConfigurationChanged(Configuration newConfig) {
    super.onConfigurationChanged(newConfig);
    mDrawerToggle.onConfigurationChanged(newConfig);
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    return true;
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    // Pass the event to ActionBarDrawerToggle, if it returns
    // true, then it has handled the app icon touch event
    if (mDrawerToggle.onOptionsItemSelected(item)) {
      return true;
    }

    return super.onOptionsItemSelected(item);
  }

  /**
   * Toggles the state of the navigation drawer (i.e. closes it if it's open, and opens it if
   * it's closed).
   */
  public void toggleNavigationDrawer() {
    if (mDrawerLayout.isDrawerOpen(GravityCompat.START)) {
      closeNavigationDrawer();
    } else {
      openNavigationDrawer();
    }
  }

  /**
   * Opens the navigation drawer.
   */
  public void openNavigationDrawer() {
    mDrawerLayout.openDrawer(GravityCompat.START);
  }

  /**
   * Closes the navigation drawer.
   */
  public void closeNavigationDrawer() {
    mDrawerLayout.closeDrawer(GravityCompat.START);
  }

  /**
   * Initializes items specific to the navigation drawer.
   */
  private void setupNavigationDrawer() {
    mDrawerLayout = (DrawerLayout) mInflater.inflate(R.layout.navigation_drawer, null); // "null" is important.
    mDrawerLayout.setStatusBarBackgroundColor(getResources().getColor(R.color.app_green));

    // We want to use the toolbar if the version is 21 or greater, because is has more flexibility
    // than the standard ActionBar
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
      mAppBar = (Toolbar) findViewById(R.id.app_bar);
      setSupportActionBar(mAppBar);
    }

    ActionBar actionBar = getSupportActionBar();
    actionBar.setDisplayHomeAsUpEnabled(true);
    actionBar.setHomeButtonEnabled(true);
    actionBar.setDisplayShowHomeEnabled(false);

    mDrawerToggle = new ActionBarDrawerToggle(
      this,                  /* Our context (Activity that hosts this drawer) */
      mDrawerLayout,         /* The DrawerLayout where the nav drawer will be drawn */
      mAppBar,               /* The Toolbar that is being used as an app bar. */
      R.string.drawer_open,  /* Description of "open drawer", for accessibility */
      R.string.drawer_close  /* Description of "close drawer", for accessibility */
    ) {

      /**
       * Called when a drawer has settled in a completely closed state.
       */
      public void onDrawerClosed(View view) {
        super.onDrawerClosed(view);
        supportInvalidateOptionsMenu();
      }

      /**
       * Called when a drawer has settled in a completely open state.
       */
      public void onDrawerOpened(View drawerView) {
        super.onDrawerOpened(drawerView);
        supportInvalidateOptionsMenu();
      }
    };

    mDrawerList = (ListView) mDrawerLayout.findViewById(R.id.drawer_list);

    NavDrawerGroup userToolsGroup = new NavDrawerGroup(R.string.drawer_group_usertools, false, 1);
    NavDrawerGroup toolBoxGroup = new NavDrawerGroup(R.string.drawer_group_toolbox, true, 2);
    NavDrawerGroup supportGroup = new NavDrawerGroup(R.string.drawer_group_support, true, 3);

    NavDrawerItem[] navDrawerItems = {
      new NavDrawerItem(R.string.drawer_item_main, R.drawable.ic_main, NavDrawerGroup.DEFAULT_GROUP),
      new NavDrawerItem(R.string.drawer_item_tool_one, R.drawable.ic_tool_one, NavDrawerGroup.DEFAULT_GROUP),
      new NavDrawerItem(R.string.drawer_item_tool_two, R.drawable.ic_tool_two, userToolsGroup),
    };

    mAdapter = new NavDrawerItemAdapter(this, navDrawerItems);
    mDrawerList.setAdapter(mAdapter);

    mDrawerLayout.setDrawerListener(mDrawerToggle);
    mDrawerList.setOnItemClickListener(this);
  }
}

我知道NavDrawerItem看起来有点不稳定，但我已经验证了它可以与旧的导航抽屉（前工具栏）一起工作，它真正做的是用图标填充列表视图项目，并将它们放置在适当的分组中。因此，我相当有信心，这不是问题所在。

即使是这样，我也应该得到除空白白色背景之外的其他内容，因为导航抽屉的布局实际上为具有绿色背景的列表视图设置了一个标题，我没有看到这个标题。

编辑：

根据@Black sh33p下面的评论，我删除了以不同方式处理不同API级别的代码，并将mDrawerTougle构造html" target="_blank">函数更改为：

嗯，不高兴。我删除了条件检测API级别，只是初始化了Toolbar，然后将mDrawerTougle更改为以下内容：

mDrawerToggle = new ActionBarDrawerToggle(
  this,                  /* Our context (Activity that hosts this drawer) */
  mDrawerLayout,         /* The DrawerLayout where the nav drawer will be drawn */
  mAppBar,               /* The Toolbar that is being used as an app bar. */
  R.string.drawer_open,  /* Description of "open drawer", for accessibility */
  R.string.drawer_close  /* Description of "close drawer", for accessibility */
) {

  /**
   * Called when a drawer has settled in a completely closed state.
   */
  public void onDrawerClosed(View view) {
    super.onDrawerClosed(view);
    supportInvalidateOptionsMenu();
  }

  /**
   * Called when a drawer has settled in a completely open state.
   */
  public void onDrawerOpened(View drawerView) {
    super.onDrawerOpened(drawerView);
    supportInvalidateOptionsMenu();
  }
};

但是，我最终得到了同样的结果：(

Answer 1

我正在开发一款应用程序，它使用DroperLayout和我自己的工具栏，在我的设备（android 5.0.1）上运行得非常好。为此，我有一个这样的xml布局：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <android.support.v7.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:background="#F78B1E"
        android:minHeight="?attr/actionBarSize" />


    <android.support.v4.widget.DrawerLayout
        android:id="@+id/drawer_layout"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_gravity="center_vertical">
        <!-- The main content view -->
        <FrameLayout
            android:id="@+id/content_frame"
            android:layout_width="match_parent"
            android:layout_height="match_parent"/>
        <!-- The navigation drawer -->
        <ListView
            android:id="@+id/left_navigation"
            android:layout_width="400dp"
            android:layout_height="match_parent"
            android:layout_gravity="start"
            android:choiceMode="singleChoice"
            android:divider="@android:color/transparent"
            android:dividerHeight="0dp"
            android:background="#fff"
        />
    </android.support.v4.widget.DrawerLayout>
</LinearLayout>

Answer 2

由于您正在扩展ActionBarActivity，因此不需要以不同的方式处理API级别，您可以使用支持工具栏，一直到API 7。

我认为如果你使用另一个ActionBarDrawerToggle构造函数，你的代码就会工作。试试这个：

mDrawerToggle = new ActionBarDrawerToggle(
      this,                  /* Our context (Activity that hosts this drawer) */
      mDrawerLayout,         /* The DrawerLayout where the nav drawer will be drawn */
      R.string.drawer_open,  /* Description of "open drawer", for accessibility */
      R.string.drawer_close  /* Description of "close drawer", for accessibility */
    ) {

      /**
       * Called when a drawer has settled in a completely closed state.
       */
      public void onDrawerClosed(View view) {
        super.onDrawerClosed(view);
        supportInvalidateOptionsMenu();
      }

      /**
       * Called when a drawer has settled in a completely open state.
       */
      public void onDrawerOpened(View drawerView) {
        super.onDrawerOpened(drawerView);
        supportInvalidateOptionsMenu();
      }
  };

Answer 3

从onCreate中删除代码，并将其添加到setContentView中

请参阅此文件，它可能会有所帮助。。！！

 public class DrawerActivity extends ActionBarActivity {

protected ActionBarDrawerToggle mDrawerToggle;
private String[] mModulesTitles;
private DrawerLayout mDrawerLayout;
private ListView mDrawerList;
private Intent intent;
private TypedArray navMenuIcons;
private ArrayList<NavDrawerItem> navDrawerItems;
private NavDrawerListAdapter adapter;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
}

@Override
protected void onPostCreate(Bundle savedInstanceState) {
    super.onPostCreate(savedInstanceState);
    mDrawerToggle.syncState();

}

@Override
public void onConfigurationChanged(Configuration newConfig) {
    super.onConfigurationChanged(newConfig);
    mDrawerToggle.onConfigurationChanged(newConfig);
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // TODO Auto-generated method stub
    getMenuInflater().inflate(R.menu.options, menu);
    return super.onCreateOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
    if (mDrawerToggle.onOptionsItemSelected(item)) {

        return true;
    }
    switch (item.getItemId()) {
    case R.id.action_search:
        intent = new Intent(this, JoinLeagueActivity.class);
        startActivity(intent);
        overridePendingTransition(R.anim.push_left_in,R.anim.push_left_out);
        return true;

    case R.id.action_add:
        intent = new Intent(this, CreateLeagueActivity.class);
        startActivity(intent);
        overridePendingTransition(R.anim.push_left_in,R.anim.push_left_out);
        return true;

    case R.id.contactUs:
        FragmentManager fm = this.getSupportFragmentManager();
        DialogFragment dialog = new ContactUsDialogFragment(); // creating new object
        dialog.show(fm, "dialog");
        return new ContactUsDialogFragment() != null;
    default:
        return super.onOptionsItemSelected(item);
    }
}

@Override
public void setContentView(final int layoutResID) {

    View fullLayout = (DrawerLayout) getLayoutInflater().inflate(
            R.layout.layout_drawer, null);

    FrameLayout actContent = (FrameLayout) fullLayout
            .findViewById(R.id.content_frame);

    mModulesTitles = getResources().getStringArray(R.array.modules_array);
    mDrawerLayout = (DrawerLayout) fullLayout
            .findViewById(R.id.drawer_layout);
    mDrawerList = (ListView) fullLayout.findViewById(R.id.left_drawer);
    mDrawerList.setOnItemClickListener(new DrawerItemClickListener());

    // nav drawer icons from resources
    navMenuIcons = getResources()
            .obtainTypedArray(R.array.nav_drawer_icons);


    navDrawerItems = new ArrayList<NavDrawerItem>();

    // adding nav drawer items to array
    // Home
    navDrawerItems.add(new NavDrawerItem(mModulesTitles[0], navMenuIcons.getResourceId(0, -1)));
    // Find People
    navDrawerItems.add(new NavDrawerItem(mModulesTitles[1], navMenuIcons.getResourceId(1, -1)));
    // Photos
    navDrawerItems.add(new NavDrawerItem(mModulesTitles[2], navMenuIcons.getResourceId(2, -1)));
    // Communities, Will add a counter here
    navDrawerItems.add(new NavDrawerItem(mModulesTitles[3], navMenuIcons.getResourceId(3, -1)));
    // Pages
    navDrawerItems.add(new NavDrawerItem(mModulesTitles[4],-1));
    // What's hot, We  will add a counter here
    navDrawerItems.add(new NavDrawerItem(mModulesTitles[5], -1));
    navDrawerItems.add(new NavDrawerItem(mModulesTitles[6], -1));

    // Recycle the typed array
    navMenuIcons.recycle();
    adapter = new NavDrawerListAdapter(getApplicationContext(),
            navDrawerItems);
    mDrawerList.setAdapter(adapter);
//      mDrawerList.setAdapter(new ArrayAdapter<String>(this, R.layout.drawer_list_item, mModulesTitles));
    mDrawerList.setOnItemClickListener(new DrawerItemClickListener());

    mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
            R.drawable.ic_drawer, R.string.drawer_open,
            R.string.drawer_close) {

        public void onDrawerClosed(View view) {
            super.onDrawerClosed(view);
            getActionBar().setTitle(R.string.app_name);
        }

        public void onDrawerOpened(View drawerView) {
            super.onDrawerOpened(drawerView);
            getActionBar().setTitle(R.string.app_name);
        }
    };
    Log.e("DRAWERLAYOUT@@@", "" + mDrawerLayout);

    getActionBar().setDisplayHomeAsUpEnabled(true);
    getActionBar().setHomeButtonEnabled(true);

    getLayoutInflater().inflate(layoutResID, actContent, true);
    mDrawerLayout.setDrawerListener(mDrawerToggle);
    super.setContentView(fullLayout);
}

public class DrawerItemClickListener implements
        ListView.OnItemClickListener {
    public DrawerItemClickListener() {
        // TODO Auto-generated constructor stub
    }

    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position,
            long id) {
        selectItem(position);
    }
}
private void selectItem(int position) {
    // update selected item and title, then close the drawer
    mDrawerList.setItemChecked(position, true);
    setTitle(mModulesTitles[position]);
    mDrawerLayout.closeDrawer(mDrawerList);
    if (position == 0) {
        Intent intent = new Intent(this, DashboardActivity.class);
        intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
        startActivity(intent);
        overridePendingTransition(R.anim.push_left_in, R.anim.push_left_out);
    }
    if (position == 1) {
        Intent intent = new Intent(this, LeagueActivity.class);
        startActivity(intent);
        overridePendingTransition(R.anim.push_left_in, R.anim.push_left_out);
    }
    if (position == 2) {
        Intent intent = new Intent(this, MatchupActivity.class);
        startActivity(intent);
        overridePendingTransition(R.anim.push_left_in, R.anim.push_left_out);
    }
    if (position == 3) {
        Intent intent = new Intent(this, HelpActivity.class);
        startActivity(intent);
        overridePendingTransition(R.anim.push_left_in, R.anim.push_left_out);
    }
    if (position == 4) {
        Intent intent = new Intent(this, PrivacyActivity.class);
        intent.putExtra("from_register", false);
        startActivity(intent);
        overridePendingTransition(R.anim.push_left_in, R.anim.push_left_out);
    }
    if (position == 5) {
        Intent intent = new Intent(this, TermsActivity.class);
        intent.putExtra("from_register", false);
        startActivity(intent);
        overridePendingTransition(R.anim.push_left_in, R.anim.push_left_out);
    }
    if (position == 6) {
        SharedPreferenceUtil.putValue("loginStatus", false);
        Intent intent = new Intent(this, LoginActivity.class);
        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
        startActivity(intent);
        this.finish();
        overridePendingTransition(R.anim.push_left_in, R.anim.push_left_out);
    }
}
}