导航抽屉操作栏按钮不起作用

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【中文标题】导航抽屉操作栏按钮不起作用【英文标题】:Navigation Drawer ActionBar button not working 【发布时间】:2013-05-20 15:31:53 【问题描述】:

我正在开发一个 android 项目,我正在尝试使用来自 http://developer.android.com/training/implementing-navigation/nav-drawer.html 的示例集成新的 Navigation Drawer。

它主要工作除了一件事,操作栏向上按钮不显示菜单,但如果我从边缘在主活动屏幕上滑动手指,然后菜单出现,所以我知道没有任何问题实际的菜单,它只是操作栏按钮。

下面是代码

public class MainActivity extends Activity 

    private DrawerLayout mDrawerLayout;
    private ListView mDrawerList;
    private ActionBarDrawerToggle mDrawerToggle;

    private CharSequence mTitle;
    private CharSequence mDrawerTitle;
    private String[] mPlanetTitles;

    @Override
    protected void onCreate(Bundle savedInstanceState) 
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mTitle = mDrawerTitle = getTitle();
        mPlanetTitles = getResources().getStringArray(R.array.planets_array);

        mDrawerLayout = (DrawerLayout)findViewById(R.id.drawer_layout);
        mDrawerList = (ListView)findViewById(R.id.left_drawer);


        MenuItemAdapter menuAdapter = new MenuItemAdapter(this);

        menuAdapter.add(new MenuItem("Hello"));
        menuAdapter.add(new MenuItem("World"));
        menuAdapter.add(new MenuItem("Parsnips"));
        menuAdapter.add(new MenuItem("Turnips"));

        mDrawerList.setAdapter(menuAdapter);

        mDrawerList.setOnItemClickListener(new DrawerItemClickListener());

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

        mDrawerToggle = new ActionBarDrawerToggle(
                this,
                mDrawerLayout,
                R.drawable.ic_drawer, 
                R.string.drawer_open,
                R.string.drawer_closed)
        
            public void onDrawerClosed(View view)
            
                getActionBar().setTitle(mTitle);
                invalidateOptionsMenu();
            

            public void onDrawerOpened(View drawerView)
            
                getActionBar().setTitle(mDrawerTitle);
                invalidateOptionsMenu();
            
        ;

        mDrawerLayout.setDrawerListener(mDrawerToggle);
        if (savedInstanceState ==  null)
        
            selectItem(0);
        
    

    @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;
    

    private class DrawerItemClickListener implements ListView.OnItemClickListener 
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) 
            selectItem(position);
        
    

    private void selectItem(int position) 
        // update the main content by replacing fragments

        android.app.Fragment fragment = new PlanetFragment();
        Bundle args = new Bundle();
        args.putInt(PlanetFragment.ARGS_PLANET_NUMBER, position);
        fragment.setArguments(args);

        android.app.FragmentManager fragmentManager = getFragmentManager();
        fragmentManager.beginTransaction().replace(R.id.content_frame, fragment).commit();

        mDrawerList.setItemChecked(position, true);
        setTitle(mPlanetTitles[position]);
        mDrawerLayout.closeDrawer(mDrawerList);
    

    @Override
    public void setTitle(CharSequence title)
    
        mTitle = title;
        getActionBar().setTitle(mTitle);
    

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

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

    public static class PlanetFragment extends android.app.Fragment
    
        public static final String ARGS_PLANET_NUMBER = "planet_number";

        public PlanetFragment()
        

        

        @Override
        public View onCreateView(LayoutInflater inflator, ViewGroup container, Bundle savedInstanceState)
        
            View rootView = inflator.inflate(R.layout.fragment_planet, container, false);
            int i = getArguments().getInt(ARGS_PLANET_NUMBER);
            String planet = getResources().getStringArray(R.array.planets_array)[i];

            //((TextView)rootView.findViewById(R.id.fragment_text_view)).setText(planet);
            getActivity().setTitle("Planet: " + planet);
            return rootView;
        
    

    private class MenuItem
    
        public String menuName;

        public MenuItem(String menuName)
        
            this.menuName = menuName;
        
    

    public class MenuItemAdapter extends ArrayAdapter<MenuItem>
    
        public MenuItemAdapter (Context context)
        
            super(context,0);
        

        public View getView (int position, View convertView, ViewGroup parent)
        
            convertView = null;
            if (convertView == null)
            
                convertView = LayoutInflater.from(getContext()).inflate(R.layout.row_menu_item, null);
            

            /*TextView title = (TextView)convertView.findViewById(R.id.row_title);
            title.setText(getItem(position).menuName);
            title.setVisibility(View.VISIBLE);*/

            EditText title = (EditText)convertView.findViewById(R.id.row_edittext);
            title.setHint(getItem(position).menuName);
            title.setVisibility(View.VISIBLE);

            return convertView;
        
    

感谢您提供的任何帮助。

【问题讨论】:

【参考方案1】:

你忘了实现 onOptionsItemSelected

这就是神奇发生的地方:

@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;
        
        // Handle your other action bar items...

        return super.onOptionsItemSelected(item);
    

【讨论】:

谢谢,我不知道有多少次我仔细检查了文档并且每次都设法错过了。感谢您的帮助 如果我不想要上面的操作栏怎么办,那我可以不包括上面提到的代码吗? 哇...节省了我的时间 我傻眼了,因为我的工作,然后没有,但这是因为我删除了这个方法没有注意,因为我删除了我的操作栏项目...... @TintinabulatorZea 你还是错过了一些东西。您需要覆盖onPostCreate() 并添加actionBarDrawerToggle.syncState();【参考方案2】:

对于那些仍然有问题的人,你可能错过了这个方法(OP有但我已经删除了):

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

【讨论】:

onPostCreate 中调用它真的很重要。在onCreate 中调用它是行不通的!谢谢老哥 这带来了我正在寻找的汉堡图标。谢谢:)【参考方案3】:

它对我有用。

drawerToggle.setToolbarNavigationClickListener(new View.OnClickListener() 
        @Override
        public void onClick(View v) 
            mDrawer.openDrawer(GravityCompat.START);
        
    );

【讨论】:

【参考方案4】:

在这里,我将告诉您在不使用 android studio 的情况下在 android 中创建抽屉导航的简单方法。我刚刚使用 ADT 创建导航抽屉。 下面是代码看看

activity_main.xml

<android.support.v4.widget.DrawerLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/dr_layout"
    android:layout_
    android:layout_>

    <RelativeLayout 
        android:id="@+id/mainContent"
        android:layout_
        android:layout_>
     <TextView 
        android:id="@+id/txt1"
        android:layout_
        android:layout_
        android:text="swipe content"/>
     <Button 
        android:id="@+id/bt1"
        android:layout_
        android:layout_
        android:text = "Click to open d"/>
   </RelativeLayout>
   <RelativeLayout 
        android:id="@+id/drawer"
        android:layout_
        android:layout_
        android:layout_gravity = "start"
        android:background="#FFFFFF">
    <TextView 
         android:id="@+id/txt2"
         android:layout_
         android:layout_
         android:text="drawer content are here arr"/>
    <Button 
         android:id="@+id/bt2"
         android:layout_
         android:layout_
         android:text = "Click to open d"/>
   </RelativeLayout>

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

MainActivity.java

package com.example.drawer1;
import android.os.Bundle;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.res.Configuration;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.widget.DrawerLayout;
import android.support.v4.widget.DrawerLayout.DrawerListener; 
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnTouchListener;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends Activity 
    private DrawerLayout drawerLayout;
    private View drawerView;
    Button bt1,bt2;
    private DrawerListener myDrawerListner;
    private ActionBarDrawerToggle mDrawerTogle;
    @SuppressLint("NewApi")
    @Override
    protected void onCreate(Bundle savedInstanceState) 
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        drawerLayout = (DrawerLayout) findViewById(R.id.dr_layout);
        drawerView = (View) findViewById(R.id.drawer);
        drawerLayout.setDrawerListener(myDrawerListner);
        bt1 = (Button) findViewById(R.id.bt1);
        bt2 = (Button) findViewById(R.id.bt2);
        mDrawerTogle =new ActionBarDrawerToggle(this, drawerLayout,  
        R.drawable.ic_drawer,R.string.open_drawer,R.string.close_drawer)
            public void onDrawerOpened(View drawerView) 
            // TODO Auto-generated method stub
                super.onDrawerOpened(drawerView);
                getActionBar().setTitle("SpeakEng");
            
            public void onDrawerClosed(View view) 
            // TODO Auto-generated method stub
                super.onDrawerClosed(view);
                getActionBar().setTitle("SpeakEng");
            
        ;
        drawerLayout.setDrawerListener(mDrawerTogle);

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

        bt2.setOnClickListener(new OnClickListener() 

            @Override
            public void onClick(View arg0) 
                // TODO Auto-generated method stub
                   drawerLayout.closeDrawer(drawerView);
            
        );

        bt1.setOnClickListener(new OnClickListener() 

            @Override
            public void onClick(View arg0) 
                // TODO Auto-generated method stub
                   drawerLayout.openDrawer(drawerView);

            
        );
    
    @Override
    public void onConfigurationChanged(Configuration newConfig)
        super.onConfigurationChanged(newConfig);
        mDrawerTogle.onConfigurationChanged(newConfig);
    
    public boolean onOptionsItemSelected(MenuItem item)
        if (mDrawerTogle.onOptionsItemSelected(item))
            return true;
        

        return super.onOptionsItemSelected(item);
    
    @Override
    protected void onPostCreate(Bundle savedInstanceState)
        super.onPostCreate(savedInstanceState);
        //Sync the toogle state after onRestoreInstanceState has occured.
        mDrawerTogle.syncState();
    
   

您可以打开抽屉 1)通过单击按钮,2)从左侧拉,3)单击操作栏上的抽屉图标。您可以根据需要打开它。我给了您三个选项。

注意:drawerLayout 必须是根元素,如代码所示。 并保持 onConfigurationChanged()、onOptionsItemSelected()、onPostCreate()。 这三个方法对于创建抽屉式导航非常重要。

祝你好运!

【讨论】:

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