如何讓我的菜單項目做些什麼？

Question

我是Android新人。我已按照this tutorial創建滑動菜單，但此菜單項僅顯示圖像。我想將每一個鏈接到一個新的活動，這可能嗎？

我的主要活動：

public class MainActivity extends Activity { 

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

private CharSequence mDrawerTitle; 
private CharSequence mTitle; 
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); 

    // set a custom shadow that overlays the main content when the drawer opens 
    mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START); 
    // set up the drawer's list view with items and click listener 
    mDrawerList.setAdapter(new ArrayAdapter<String>(this, 
      R.layout.drawer_list_item, mPlanetTitles)); 
    mDrawerList.setOnItemClickListener(new DrawerItemClickListener()); 

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

    // ActionBarDrawerToggle ties together the the proper interactions 
    // between the sliding drawer and the action bar app icon 
    mDrawerToggle = new ActionBarDrawerToggle(
      this,     /* host Activity */ 
      mDrawerLayout,   /* DrawerLayout object */ 
      R.drawable.ic_drawer, /* nav drawer image to replace 'Up' caret */ 
      R.string.drawer_open, /* "open drawer" description for accessibility */ 
      R.string.drawer_close /* "close drawer" description for accessibility */ 
    ) { 
     public void onDrawerClosed(View view) { 
      getActionBar().setTitle(mTitle); 
      invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu() 
     } 

     public void onDrawerOpened(View drawerView) { 
      getActionBar().setTitle(mDrawerTitle); 
      invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu() 
     } 
    }; 
    mDrawerLayout.setDrawerListener(mDrawerToggle); 

    if (savedInstanceState == null) { 
     selectItem(0); 
    } 
} 

@Override 
public boolean onCreateOptionsMenu(Menu menu) { 
    MenuInflater inflater = getMenuInflater(); 
    inflater.inflate(R.menu.main, menu); 
    return super.onCreateOptionsMenu(menu); 
} 

/* Called whenever we call invalidateOptionsMenu() */ 


@Override 
public boolean onOptionsItemSelected(MenuItem item) { 
    // The action bar home/up action should open or close the drawer. 
    // ActionBarDrawerToggle will take care of this. 
    if (mDrawerToggle.onOptionsItemSelected(item)) { 
     return true; 
    } 
    // Handle action buttons 
    switch(item.getItemId()) { 
     case R.id.action_websearch: 
      // create intent to perform web search for this planet 
      Intent intent = new Intent(Intent.ACTION_WEB_SEARCH); 
      intent.putExtra(SearchManager.QUERY, getActionBar().getTitle()); 
      // catch event that there's no activity to handle intent 
      if (intent.resolveActivity(getPackageManager()) != null) { 
       startActivity(intent); 
      } else { 
       Toast.makeText(this, R.string.app_not_available, Toast.LENGTH_LONG).show(); 
      } 
      return true; 
     default: 
      return super.onOptionsItemSelected(item); 
    } 
} 

/* The click listner for ListView in the navigation drawer */ 
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 
    Fragment fragment = new PlanetFragment(); 
    Bundle args = new Bundle(); 
    args.putInt(PlanetFragment.ARG_PLANET_NUMBER, position); 
    fragment.setArguments(args); 

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

    // update selected item and title, then close the drawer 
    mDrawerList.setItemChecked(position, true); 
    setTitle(mPlanetTitles[position]); 
    mDrawerLayout.closeDrawer(mDrawerList); 
} 

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

/** 
* When using the ActionBarDrawerToggle, you must call it during 
* onPostCreate() and onConfigurationChanged()... 
*/ 

@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); 
    // Pass any configuration change to the drawer toggls 
    mDrawerToggle.onConfigurationChanged(newConfig); 
} 

/** 
* Fragment that appears in the "content_frame", shows a planet 
*/ 
public static class PlanetFragment extends Fragment { 
    public static final String ARG_PLANET_NUMBER = "planet_number"; 

    public PlanetFragment() { 
     // Empty constructor required for fragment subclasses 
    } 

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

     int imageId = getResources().getIdentifier(planet.toLowerCase(Locale.getDefault()), 
       "drawable", getActivity().getPackageName()); 
     ((ImageView) rootView.findViewById(R.id.image)).setImageResource(imageId); 
     getActivity().setTitle(planet); 
     return rootView; 
    } 
} 

Answer 1

是你可以做，在onOptionsItemSelected事件。

onOptionsItemSelected有一個MenuItem類型的參數。你可以在這裏看到這個參數選項（MenuItem項目）。

只需選擇item.getTitle和你根據所選項目

Answer 2

與實際活動的類名更換OtherActivity.class和anotherActivity.class想要什麼，你就完成了。

@Override 
    public boolean onOptionsItemSelected(MenuItem item) 
    { 
     if (item.getTitle()=="View 1") 
     { 
      Intent newActivity = new Intent(this,OtherActivity.class); 
      startActivity(newActivity); 

     } 
     else 
     { 
      Intent newActivity = new Intent(this,anotherActivity.class); 
      startActivity(newActivity); 
     } 
     return MenuChoice(item); 
    }