android - 在我的 fragment 中可以看到两个工具栏

Question

我一直在使用 toolbar 开发一个 navigation drawer 并在点击 drawer items 时，相应的 fragments 将显示，但这是问题所在，当我单击 drawer items 时，会显示带有两个 toolbars 的 fragments。请帮助.

fragment.xml

    <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="archerpenny.impdrawerfragment.BlankFragment">
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">
    <include
        android:id="@+id/toolbar"
        layout="@layout/toolbar" />

    <!-- TODO: Update blank fragment layout -->
    <TextView android:layout_width="match_parent" android:layout_height="match_parent"
        android:text="@string/hello_blank_fragment" />
    </LinearLayout>

</FrameLayout>

My Activity_main.xml..

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


    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/Container"
        android:orientation="vertical">
        <include
            android:id="@+id/toolbar"
            layout="@layout/toolbar" />

    <FrameLayout
        android:id="@+id/container_body"
        android:layout_width="fill_parent"
        android:layout_height="0dp"
        android:layout_weight="1" >

                <TextView
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:text="hi"/>



    </FrameLayout>
    </LinearLayout>




    <android.support.v7.widget.RecyclerView
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:id="@+id/DrawerList"
        android:layout_marginTop="?android:attr/actionBarSize"
        android:background="@mipmap/menu_bg"
        android:layout_gravity="left"/>

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


MainActivity.java....

`



import android.app.Fragment;
import android.app.FragmentManager;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;


public class MainActivity extends AppCompatActivity  {
    ActionBarDrawerToggle mDrawerToggle;
    RecyclerView.Adapter mAdapter;
    RecyclerView recyclerView;
    DrawerLayout mDrawerLayout;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mAdapter = new NavigationDrawerAdapter(this);
        mDrawerLayout=(DrawerLayout)findViewById(R.id.drawer_layout);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
        NavigationDrawerAdapter adapter;

        recyclerView = (RecyclerView)findViewById(R.id.DrawerList);
        recyclerView.setHasFixedSize(true);
        LinearLayoutManager llm = new LinearLayoutManager(this);
        recyclerView.setLayoutManager(llm);
        recyclerView.setAdapter(mAdapter);

        getSupportActionBar().setDisplayShowTitleEnabled(false);

        mDrawerToggle = new ActionBarDrawerToggle(this,mDrawerLayout,toolbar,R.string.open,R.string.close) {
            @Override
            public void onDrawerOpened(View drawerView) {
                super.onDrawerOpened(drawerView);
            }

            @Override
            public void onDrawerClosed(View drawerView) {
                super.onDrawerClosed(drawerView);
            }
        };

        mDrawerLayout.setDrawerListener(mDrawerToggle);
        getSupportActionBar().setHomeButtonEnabled(true);
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        recyclerView.addOnItemTouchListener(
                new RecyclerItemClickListener(MainActivity.this, new RecyclerItemClickListener.OnItemClickListener() {
                    @Override
                    public void onItemClick(View view, int position) {
                        // do whatever
                        if(position==0)
                        {
                            BlankFragment blankFragment=new BlankFragment();
                            FragmentManager fragmentManager = getFragmentManager();
                            fragmentManager.beginTransaction()
                                    .replace(R.id.Container, blankFragment)
                                    .commit();
                        }
                        mDrawerLayout.closeDrawers();
                    }
                })
        );
    }

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

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        if (mDrawerToggle.onOptionsItemSelected(item)) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }

}


BlankFragment.java




import android.os.Bundle;
import android.app.Fragment;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;



public class BlankFragment extends Fragment {
    // TODO: Rename parameter arguments, choose names that match
    // the fragment initialization parameters, e.g. ARG_ITEM_NUMBER



    // TODO: Rename and change types and number of parameters
    public static BlankFragment newInstance(String param1, String param2) {
        BlankFragment fragment = new BlankFragment();
        Bundle args = new Bundle();

        return fragment;
    }

    public BlankFragment() {
        // Required empty public constructor
    }

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

    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState)
    {
        AppCompatActivity activity = (AppCompatActivity) getActivity();

        View view=inflater.inflate(R.layout.fragment_blank, container, false);
        Toolbar toolbar = (Toolbar) view.findViewById(R.id.toolbar);
        activity.setSupportActionBar(toolbar);
        activity.getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        // Inflate the layout for this fragment
        return view;
    }


}

Answer 1

删除 fragment 中的 include 语句

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="archerpenny.impdrawerfragment.BlankFragment">
<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">


<!-- TODO: Update blank fragment layout -->
<TextView android:layout_width="match_parent" android:layout_height="match_parent"
    android:text="@string/hello_blank_fragment" />
</LinearLayout>