如何在所有活动中显示导航抽屉？

Question

我有一个导航抽屉，它应该出现在我的所有活动中。

我看到了许多类似的问题&找到了一个解决方案，比如用其他活动扩展MainActivity。

所以我把我的主要活动扩展到我的第二个活动。但是抽屉没有在第二个活动中显示

主体活动

public class MainActivity extends ActionBarActivity
{
    private ListView mDrawerList;
    private DrawerLayout mDrawer;
    private CustomActionBarDrawerToggle mDrawerToggle;
    private String[] menuItems;

@Override
protected void onCreate(Bundle savedInstanceState)
{
    super.onCreate(savedInstanceState);
    supportRequestWindowFeature(WindowCompat.FEATURE_ACTION_BAR);
    // getSupportActionBar().hide();
    setContentView(R.layout.activity_main_drawer);

    // enable ActionBar app icon to behave as action to toggle nav drawer
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    getSupportActionBar().setHomeButtonEnabled(true);

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

    // set a custom shadow that overlays the main content when the drawer
    // opens
    mDrawer.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START);

    _initMenu();
    mDrawerToggle = new CustomActionBarDrawerToggle(this, mDrawer);
    mDrawer.setDrawerListener(mDrawerToggle);

}

private void _initMenu()
{
    NsMenuAdapter mAdapter = new NsMenuAdapter(this);

    // Add Header
    mAdapter.addHeader(R.string.ns_menu_main_header);

    // Add first block

    menuItems = getResources().getStringArray(R.array.ns_menu_items);
    String[] menuItemsIcon = getResources().getStringArray(R.array.ns_menu_items_icon);

    int res = 0;
    for (String item : menuItems)
    {

        int id_title = getResources().getIdentifier(item, "string", this.getPackageName());
        int id_icon = getResources().getIdentifier(menuItemsIcon[res], "drawable", this.getPackageName());

        NsMenuItemModel mItem = new NsMenuItemModel(id_title, id_icon);
        // if (res==1) mItem.counter=12; //it is just an example...
        // if (res==3) mItem.counter=3; //it is just an example...
        mAdapter.addItem(mItem);
        res++;
    }

    mAdapter.addHeader(R.string.ns_menu_main_header2);

    mDrawerList = (ListView) findViewById(R.id.drawer);
    if (mDrawerList != null)
        mDrawerList.setAdapter(mAdapter);

    mDrawerList.setOnItemClickListener(new DrawerItemClickListener());

}

@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)
{
    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.control_menu, menu);
    return super.onCreateOptionsMenu(menu);
}

/* Called whenever we call invalidateOptionsMenu() */
@Override
public boolean onPrepareOptionsMenu(Menu menu)
{
    // If the nav drawer is open, hide action items related to the content
    // view
    boolean drawerOpen = mDrawer.isDrawerOpen(mDrawerList);
    menu.findItem(R.id.action_keyboard).setVisible(!drawerOpen);
    return super.onPrepareOptionsMenu(menu);
}

@Override
public boolean onOptionsItemSelected(MenuItem item)
{
    /*
     * The action bar home/up should open or close the drawer.
     * ActionBarDrawerToggle will take care of this.
     */
    if (mDrawerToggle.onOptionsItemSelected(item))
    {
        return true;
    }

    // Handle your other action bar items...
    return super.onOptionsItemSelected(item);
}

private class CustomActionBarDrawerToggle extends ActionBarDrawerToggle
{

    public CustomActionBarDrawerToggle(Activity mActivity, DrawerLayout mDrawerLayout)
    {
        super(mActivity, mDrawerLayout, R.drawable.ic_drawer, R.string.ns_menu_open, R.string.ns_menu_close);
    }

    @Override
    public void onDrawerClosed(View view)
    {
        getSupportActionBar().setTitle(getString(R.string.ns_menu_close));
        supportInvalidateOptionsMenu(); // creates call to
                                        // onPrepareOptionsMenu()
    }

    @Override
    public void onDrawerOpened(View drawerView)
    {
        getSupportActionBar().setTitle(getString(R.string.ns_menu_open));
        supportInvalidateOptionsMenu(); // creates call to
                                        // onPrepareOptionsMenu()
    }
}

private class DrawerItemClickListener implements ListView.OnItemClickListener
{

    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id)
    {
        Intent intent = new Intent(MainActivity.this, Tutorial.class);
        startActivity(intent);

    }

}

 }

二次活动

 public class Tutorial extends MainActivity
{
    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.help);
    }

}

Answer 1

这是我的实现。希望能有所帮助

首先，这个帖子是概念。

第二，这也是关键的一条。

最后，这里是所有答案在一个地方的组合

碱活性

这是所有其他活动的基础活动

您可以根据您的需求扩展活动或碎片活动等。

导航抽屉在此设置一次。

public class BaseActivity extends FragmentActivity {

    protected DrawerLayout mDrawer;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        this.requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.base_layout);

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

        //This is about creating custom listview for navigate drawer
        //Implementation for NavigateDrawer HERE !
        ArrayList<DrawerListItem> drawerListItems = new ArrayList<DrawerListItem>();
        drawerListItems.add(new DrawerListItem(0,"AIR° DEVICES"));
        drawerListItems.add(new DrawerListItem(1,"A/C Device [1]"));
        drawerListItems.add(new DrawerListItem(1,"A/C Device [2]"));
        drawerListItems.add(new DrawerListItem(1,"A/C Device [3]"));
        drawerListItems.add(new DrawerListItem(0,"AIR° FEATURES"));
        drawerListItems.add(new DrawerListItem(2,"SLEEP MODE"));
        drawerListItems.add(new DrawerListItem(2,"TRACKING MODE"));
        drawerListItems.add(new DrawerListItem(2,"SETTINGS"));
        DrawerAdapter mDrawerAdapter = new DrawerAdapter(this, R.layout.drawer_list_header, drawerListItems);
        ListView mDrawerList = (ListView) findViewById(R.id.left_drawer);
        mDrawerList.setAdapter(mDrawerAdapter);
    }

}

此xml布局用于导航抽屉

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

<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">

    <FrameLayout
            android:id="@+id/content_frame"
            android:layout_width="match_parent"
            android:layout_height="match_parent">

    </FrameLayout>

    <!-- The navigation drawer -->
    <ListView
            android:id="@+id/left_drawer"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_gravity="left"
            android:scrollingCache="false"
            android:background="@drawable/drawer_bg"
            android:divider="@null"
            android:choiceMode="singleChoice"/>

</android.support.v4.widget.DrawerLayout>

所有其他活动

其他activity只是扩展baseactivity并定义代码，如下所示。

public class Screen1 extends BaseActivity

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        LayoutInflater inflater = (LayoutInflater) this.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

        //inflate your activity layout here!
        View contentView = inflater.inflate(R.layout.screen1, null, false);
        mDrawer.addView(contentView, 0);

        //Do the rest as you want for each activity
    }

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

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

</LinearLayout>

注

在此实现中，导航抽屉不与操作栏绑定。如果您希望这样做，请在baseactivity中进行。只是个样本。