What I have:
I have a fragment
I am using SherlockActionBar library
I have a FragmentTabHost in Fragment
What i want to know: I want to detect onClick event each tab and perform some action based on it
Fragment1.java:
public class Fragment1 extends SherlockFragment{
private FragmentTabHost mTabHost;
//Mandatory Constructor
public Fragment1() {
}
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment1,container, false);
mTabHost = (FragmentTabHost)rootView.findViewById(android.R.id.tabhost);
mTabHost.setup(getActivity(), getChildFragmentManager(), R.id.realtabcontent);
mTabHost.addTab(mTabHost.newTabSpec("fragmentb").setIndicator("Rating"),
RatingAscending.class, null);
mTabHost.addTab(mTabHost.newTabSpec("fragmentc").setIndicator("Price"),
PriceAscending.class, null);
mTabHost.addTab(mTabHost.newTabSpec("fragmentd").setIndicator("Distance"),
DistanceAscending.class, null);
return rootView;
}
}
I'm assuming what you want to do is detect when a specific tab has been clicked in your FragmentTabHost. This can be accomplished quite simply by adding a setOnTabChangedListener.
Here is an example:
FragmentTabHost t = new FragmentTabHost(getActivity());
t.setOnTabChangedListener(new OnTabChangeListener() {
#Override
public void onTabChanged(String tabId) {
// TODO your actions go here
}
});
}
Related
I create simple project using actionbar ,i've one class and one fragment class, i define custome actionbar in class, and my problem, how to call method actionbar in fragment class from class,
this code like below :
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_holder);
fragmentArray = new ConferenceFragment[8];
// Load main fragment
fragment = new HomeFragment();
fragmentArray[0] = fragment;
currentFragmentIndex = 0;
FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
fragmentTransaction.replace(R.id.holder, fragment).commit();
// initMenuBar();
}
public void initMenuBar(){
ActionBar actionBar = getActionBar();
actionBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
actionBar.setCustomView(R.layout.menu_bar);
ImageButton buttonSideMenu = (ImageButton) findViewById(R.id.bt_menu);
buttonSideMenu.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
toggle();
// Toast.makeText(getApplicationContext(), "Clicked!",Toast.LENGTH_LONG).show();
}
});
actionBar.show();
}
// fragment class
public class HomeFragment extends Fragment{
View v;
MainActivity mainactivity;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
mainActivity.initMenuBar(); // ERROR IN THIS LINE
super.onCreateView(inflater, container, savedInstanceState);
v = inflater.inflate(R.layout.home_fragment, container, false);
return v;
}
}
ActionBar is traditionally the part of Activity and is available to activity only. You can get Activity instance by calling getActivity() from fragment and cast it to your activity then call public method to do whatever you want.
But the better option is to use ToolBar explained here support library v7
You need to get your MainActivity's context reference in your fragment to access activity's method.
Try this.
public class HomeFragment extends Fragment{
View v;
Context mContext;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreateView(inflater, container, savedInstanceState);
v = inflater.inflate(R.layout.home_fragment, container, false);
mContext = getActivity();
((MainActivity) mContext).initMenuBar();
return v;
}
}
I'm new to Android and I'm playing with Fragments, I know that there exist many examples to learn how Fragments work, unfortunately there is not many examples using Nested-Fragments (which are in the same Activity).
This is my code below, ive encountered 2 problems:
The Root Fragment is visible after I add the secondary Fragment.
both Fragment use same design, but when I add the FragmentIi can see the dimensions of the widgets and the position on the screen are not the same.
I Need some feedback how to do it right.
Thank you!
public class LoginActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
if (savedInstanceState == null) {
getFragmentManager().beginTransaction()
.add(R.id.container, new PlaceholderFragment()).commit();
}
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
public PlaceholderFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_login,
container, false);
TextView tv = (TextView) rootView.findViewById(R.id.signUpText1);
tv.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
FragmentTransaction ft = getFragmentManager()
.beginTransaction();
ft.replace(R.id.loginViewPlaceholder, new SignupFragment());
ft.commit();
}
});
return rootView;
}
}
public static class SignupFragment extends Fragment {
public SignupFragment() {
// TODO Auto-generated constructor stub
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
View signupView = inflater.inflate(R.layout.fragment_signup,
container, false);
return signupView;
}
}
}
The replace method will remove a fragment from the specified container and add the new one its place. In your example, it looks like you are adding the PlaceholderFragment to the container android.R.content and the SignupFragment to the container R.id.loginViewPlaceholder. If you want the SignupFragment to replace the PlaceholderFragment you will have to either use the same container for both, or you will have to do separate remove() and add() calls for your transaction.
I am currentley using the old tabHost to hold a hand full of different fragments as tabs. How can I easily switch this over to the newer swipe tabs?
public class StatisticsTab extends Fragment {
private FragmentTabHost mTabHost;
//Mandatory Constructor
public StatisticsTab() {
}
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_tabs,container, false);
mTabHost = (FragmentTabHost)rootView.findViewById(android.R.id.tabhost);
mTabHost.setup(getActivity(), getChildFragmentManager(), R.id.realtabcontent);
mTabHost.addTab(mTabHost.newTabSpec("Basic").setIndicator("Basic"),
StatisticsPage.class, null);
mTabHost.addTab(mTabHost.newTabSpec("Brewery").setIndicator("Brewery"),
BreweryStatistics.class, null);
mTabHost.addTab(mTabHost.newTabSpec("Style").setIndicator("Style"),
StyleStatistics.class, null);
mTabHost.addTab(mTabHost.newTabSpec("Taste").setIndicator("Taste"),
TasteStatisticsPage.class, null);
return rootView;
}
}
Try PagerSlidingTabStrip(https://github.com/astuetz/PagerSlidingTabStrip). An interactive indicator to navigate between the different pages of a ViewPager. It works awesome for me.
I have my FragmentActivity with a NavigationDrawer, and in that i call my fragment, for example:
case 3:
fragment = new Edit();
break;
now, in Edit fragment i want, (if possible), have a tab view with 2 fragment inside. So i set my Edit fragment with:
public class Edit extends Fragment {
private FragmentTabHost mTabHost;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
setHasOptionsMenu(true);
mTabHost = new FragmentTabHost(getActivity());
mTabHost.setup(getActivity(), getChildFragmentManager());
mTabHost.addTab(mTabHost.newTabSpec("simple").setIndicator("Simple"),
EditSource.class, savedInstanceState);
mTabHost.addTab(mTabHost.newTabSpec("contacts").setIndicator("Contacts"),
EditSource.class, savedInstanceState);
return mTabHost;
}
#Override
public void onDestroyView() {
super.onDestroyView();
mTabHost = null;
}
EditSource is another fragment.
The app work, but when i go in Edit fragment i see the Tab view but i don't see the EditSource fragment inside that only black..sorry for my english.
I am having an issue getting the view to change on a tabhost - when I select a tab the content stays blank.
From what I can tell, onCreateView is not being called on the child Fragments. onMenuCreate runs fine because the menu changes like it is supposed to.
public class PatientTabFragment extends Fragment {
private FragmentTabHost mTabHost;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
mTabHost = new FragmentTabHost(getActivity());
mTabHost.setup(getActivity(), getChildFragmentManager());
mTabHost.addTab(mTabHost.newTabSpec("simple").setIndicator("Info"),
NewPatientFragment.class, null);
mTabHost.addTab(mTabHost.newTabSpec("contacts").setIndicator("Notes"),
NoteListFragment.class, null);
return mTabHost;
}
#Override
public void onDestroyView() {
super.onDestroyView();
mTabHost = null;
}
}
according to the docs:
Special TabHost that allows the use of Fragment objects for its tab
content. When placing this in a view hierarchy, after inflating the
hierarchy you must call setup(Context, FragmentManager, int) to
complete the initialization of the tab host.
(emphasis mine)
So I suggest somethong like this:
public class PatientTabFragment extends Fragment {
private FragmentTabHost mTabHost;
private boolean createdTab = false;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
mTabHost = new FragmentTabHost(getActivity());
mTabHost.setup(getActivity(), getChildFragmentManager());
mTabHost.addTab(mTabHost.newTabSpec("simple").setIndicator("Info"),
NewPatientFragment.class, null);
mTabHost.addTab(mTabHost.newTabSpec("contacts").setIndicator("Notes"),
NoteListFragment.class, null);
return mTabHost;
}
public void onResume(){
if (!createdTab){
createdTab = true;
mTabHost.setup(getActivity(), getActivity().
getSupportedFragmentManager());
}
}
#Override
public void onDestroyView() {
super.onDestroyView();
mTabHost = null;
}
}
Now we can use TabLayout and ViewPager do those things.This is a good guide to use it.Here is my code:
viewPager=(NonSwipeableViewPager)view.findViewById(R.id.circleresdyn_viewpager);
tabLayout=(TabLayout)view.findViewById(R.id.circleresdyn_tablayout);
if (viewPager != null) {
Adapter adapter = new Adapter(((AppCompatActivity)activity).getSupportFragmentManager());
ContentFragment con=new ContentFragment();
con.setArguments(bundleForFramgnet);
MemberFragment memberFragment=new MemberFragment();
memberFragment.setArguments(bundleForFramgnet);
CirResDynTileFragment cirResDynTileFragment=new CirResDynTileFragment();
cirResDynTileFragment.setArguments(bundleForFramgnet);
adapter.addFragment(cirResDynTileFragment, "Tab1");
adapter.addFragment(con, "Tab2");
adapter.addFragment(memberFragment, "Tab3");
viewPager.setAdapter(adapter);
viewPager.setOffscreenPageLimit(3);
tabLayout.setTabGravity(TabLayout.GRAVITY_CENTER);
tabLayout.setupWithViewPager(viewPager);
tabLayout.getTabAt(0).select();
}
Check this peace of code. It may help you:
import android.app.Fragment;
public class Change_password extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.change_password, container,false);
setTabs();
return rootView;
}
private void setTabs() {
try {
addTab("Airlines", R.drawable.tab_home, HomeActivity_bkp.class);
addTab("Advance Search", R.drawable.tab_search,
AdvanceSearchAcitivty.class);
addTab("Booking", R.drawable.tab_home, Booking.class);
addTab("Settings", R.drawable.tab_search, SettingAcitivty.class);
} catch (Exception e) {
Toast.makeText(getApplicationContext(), e.toString(),
Toast.LENGTH_LONG).show();
// TODO: handle exception
}
}
private void addTab(String labelId, int drawableId, Class<?> c) {
TabHost tabHost = getTabHost();
Intent intent = new Intent(this, c);
TabHost.TabSpec spec = tabHost.newTabSpec("tab" + labelId);
View tabIndicator = LayoutInflater.from(this).inflate(
R.layout.tab_indicator, getTabWidget(), false);
TextView title = (TextView) tabIndicator.findViewById(R.id.title);
title.setText(labelId);
ImageView icon = (ImageView) tabIndicator.findViewById(R.id.icon);
icon.setImageResource(drawableId);
spec.setIndicator(tabIndicator);
spec.setContent(intent);
tabHost.addTab(spec);
}