Different menus for different tabs in the tab + swipe for an Android project

Question

I am starting to use Android and java applications, mostly I am a PHP developer.

I have a project for an application with + swipe tab,

Reseller.java

package com.idevoc.onsitereseller; import java.util.ArrayList; import android.app.ActionBar; import android.app.ActionBar.Tab; import android.app.Activity; import android.os.Bundle; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentActivity; import android.support.v4.app.FragmentManager; import android.support.v4.app.FragmentPagerAdapter; import android.support.v4.app.FragmentTransaction; import android.support.v4.view.ViewPager; import android.view.Menu; import android.view.MenuInflater; public class Reseller extends FragmentActivity { FragmentTransaction transaction; static ViewPager mViewPager; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_reseller); Fragment tabOneFragment = new TabOne(); Fragment tabTwoFragment = new TabTwo(); PagerAdapter mPagerAdapter = new PagerAdapter(getSupportFragmentManager()); mPagerAdapter.addFragment(tabOneFragment); mPagerAdapter.addFragment(tabTwoFragment); //transaction = getSupportFragmentManager().beginTransaction(); mViewPager = (ViewPager) findViewById(R.id.pager); mViewPager.setAdapter(mPagerAdapter); mViewPager.setOffscreenPageLimit(2); mViewPager.setCurrentItem(0); mViewPager.setOnPageChangeListener( new ViewPager.SimpleOnPageChangeListener() { @Override public void onPageSelected(int position) { // When swiping between pages, select the // corresponding tab. getActionBar().setSelectedNavigationItem(position); } }); ActionBar ab = getActionBar(); ab.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS); Tab tab1 = ab.newTab().setText("Tab One") .setTabListener(new TabListener<TabOne>( this, "tabone", TabOne.class)); Tab tab2 = ab.newTab().setText("Tab Two") .setTabListener(new TabListener<TabTwo>( this, "tabtwo", TabTwo.class)); ab.addTab(tab1); ab.addTab(tab2); } @Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater inflater = getMenuInflater(); inflater.inflate(R.menu.menu, menu); return true; } public static class TabListener<T extends Fragment> implements ActionBar.TabListener { private Fragment mFragment; private final Activity mActivity; private final String mTag; private final Class<T> mClass; /** Constructor used each time a new tab is created. * @param activity The host Activity, used to instantiate the fragment * @param tag The identifier tag for the fragment * @param clz The fragment Class, used to instantiate the fragment */ public TabListener(Activity activity, String tag, Class<T> clz) { mActivity = activity; mTag = tag; mClass = clz; } /* The following are each of the ActionBar.TabListener callbacks */ public void onTabSelected(Tab tab, FragmentTransaction ft) { // Check if the fragment is already initialized if (mFragment == null) { // If not, instantiate and add it to the activity mFragment = Fragment.instantiate(mActivity, mClass.getName()); ft.add(android.R.id.content, mFragment, mTag); } else { // If it exists, simply attach it in order to show it ft.attach(mFragment); } } public void onTabUnselected(Tab tab, FragmentTransaction ft) { if (mFragment != null) { // Detach the fragment, because another one is being attached ft.detach(mFragment); } } public void onTabReselected(Tab tab, FragmentTransaction ft) { // User selected the already selected tab. Usually do nothing. } public void onTabReselected(Tab arg0, android.app.FragmentTransaction arg1) { } public void onTabSelected(Tab arg0, android.app.FragmentTransaction arg1) { mViewPager.setCurrentItem(arg0.getPosition()); } public void onTabUnselected(Tab arg0, android.app.FragmentTransaction arg1) { } } public class PagerAdapter extends FragmentPagerAdapter{ private final ArrayList<Fragment> mFragments = new ArrayList<Fragment>(); public PagerAdapter(FragmentManager manager){ super(manager); } public void addFragment(Fragment fragment){ mFragments.add(fragment); notifyDataSetChanged(); } @Override public int getCount() { return mFragments.size(); } @Override public Fragment getItem(int position) { return mFragments.get(position); } } } 

TabOne.java

  package com.idevoc.onsitereseller; import android.os.Bundle; import android.support.v4.app.Fragment; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; public class TabOne extends Fragment { public static final String ARG_SECTION_NUMBER = "section_number"; @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = inflater.inflate(R.layout.tab_a, container, false); return view; } } 

TabTwo.java

  package com.idevoc.onsitereseller; import android.os.Bundle; import android.support.v4.app.Fragment; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; public class TabTwo extends Fragment { @Override public void onActivityCreated(Bundle savedInstanceState){ super.onActivityCreated(savedInstanceState); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = inflater.inflate(R.layout.tab_a, container, false); return view; } } 

Here I load two tabs for the application and load the general menu, but I need to load another menu for different tabs, for example:

if the tab is TabOne, then load menu_a if the tab is TabTwo, then load menu_b with various options. I do not want to load the general menu. How can i do this?

Answer 1

create a menu xml file for menu_a.xml and menu_b.xml in the res / menu folder.

 <menu xmlns:android="http://schemas.android.com/apk/res/android"> <item android:id="@+id/menu_item_search" android:icon="@drawable/ic_action_search" android:title="@string/description_search" android:orderInCategory="1" android:showAsAction="ifRoom" /> <item android:id="@+id/menu_item_share" android:icon="@drawable/ic_action_share" android:title="@string/description_share" android:orderInCategory="1" android:showAsAction="ifRoom" /> </menu> 

To create a options menu for the current fragment, add setHasOptionsMenu (true); to the Fragment onCreate () method.

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

Then you must inflate the corresponding parameter menu (menu_a.xml or menu_b.xml) by overriding the onCreateOptionsMenu () method.

 @Override public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { inflater.inflate(R.menu.menu_a, menu); super.onCreateOptionsMenu(menu, inflater); } 

To process the selection, the menu cancels onOptionsItemSelected ()

 @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.menu_item_search: //do something return true; case R.id.menu_item_share: //do something return true; } return super.onOptionsItemSelected(item); } 

see "Creating the options menu: http://developer.android.com/guide/topics/ui/menus.html for more details.

Answer 2

Yes, I got output with these codes,

In TabOne.java and TabTwo.java I added

  setHasOptionsMenu(true); 

In the onCreateView () function and after this menu function with a different menu, the menu function from the main class is deleted.

  @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = inflater.inflate(R.layout.tab_a, container, false); setHasOptionsMenu(true); return view; } @Override public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { // TODO Auto-generated method stub //super.onCreateOptionsMenu(menu, inflater); inflater.inflate(R.menu.menu_b, menu); }