I am developing an app in which I have used bottom navigation bar so for that I had to use fragments. In my fragments, I implemented Recycler view. So My question is when I click on an item of recycler view, how can I navigate to another fragment (which is in a different item of the bottom navigation bar) and how can I transfer the data between two fragments. Please Help.
during onClick() pass data through bundle
like that
FragmentManager mFragmentManager;
FragmentTransaction mFragmentTransaction;
Bundle bundleobj = new Bundle();
bundleobj.putCharSequence("key", data);
Fragment2 fragobj = new Fragment2();
fragobj.setArguments(bundleobj);
mFragmentTransaction.addToBackStack(null);
mFragmentTransaction.replace(R.id.containerView, fragobj).commit();
In Fragment2 class:
#Override
public void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Bundle bundle =getArguments();
if(null!=bundle) {
myData=bundle.getCharSequence("key");
}
}
In first Fragment..
Fragment fragment = new EditExamFragment();
FragmentManager fm = getActivity().getSupportFragmentManager();
FragmentTransaction ft = fm.beginTransaction();
ft.replace(R.id.content_frame, fragment);
ft.commit();
Bundle bundle = new Bundle();
bundle.putString("branch_id", mDataset.get(position).getiBranchId());
bundle.putString("exam_id",mDataset.get(position).getiExamId());
fragment.setArguments(bundle);
In Second Fragment for fetching values try below code;
String branch_id, exam_id ;
final Bundle bundle = this.getArguments();
if (bundle != null) {
branch_id = bundle.getString("branch_id");
exam_id = bundle.getString("exam_id");
}
Add below code after event listener in fragment1
SecondFragmentName secondFragmentName = new SecondFragmentName();
Bundle args = new Bundle();
args.putString("key", "value");
secondFragmentName.setArguments(args);
getFragmentManager().beginTransaction().replace(R.id.content_frame, secondFragmentName).addToBackStack("Some string").commit();
To get value in Fragment2
String message = getArguments().getString("key");
Related
I want to get search result from search bar which is in Activity and show all list in a fragment. How can I do it?
#Override
public boolean onQueryTextSubmit(String query) {
if (query.length() > 0) {
FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
Fragment newFragment = new SearchFragment(); //your search fragment
Bundle args = new Bundle();
args.putString("query_string", query);
newFragment.setArguments(args);
transaction.replace(R.id.content_frame, newFragment);
transaction.addToBackStack(null);
transaction.commit();
}
return false;
}
Hope this will solve your issue ... Let me know in the comment ...(its just an example.. as you have not provided the sufficient information related your query)
Link
I searched your query and found above link ...
Edited:
Step 1: Passing the data from activity to fragment,
Bundle bundle = new Bundle();
bundle.putString("params", "My String data");
// set MyFragment Arguments
MyFragment myObj = new MyFragment();
myObj.setArguments(bundle);
Step 2: Receiving the data to the fragment,
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
mParam1 = getArguments().getString("params");
}
}
I want to make 2 fragment, if I press the question then will replace the fragment question, and if the result of the fragment results. but of these codes are replaced only fp.
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_tersumbat);
strings = getResources().getStringArray(R.array.Tersumbat);
hasilstrings = getResources().getStringArray(R.array.HasilTersumbat);
FragmentManager fm = getSupportFragmentManager();
Tersumbat.FragmentPertanyaan fp = new Tersumbat.FragmentPertanyaan();
Tersumbat.FragmentPertanyaan fh = new Tersumbat.Fragmenthasil();
fp.setListener(this);
Bundle bundle = new Bundle();
bundle.putString("pertanyaan", strings[0]);
bundle.putString("hasil", strings[0]);
bundle.putInt("posisi", 0);
fp.setArguments(bundle);
fh.setArguments(bundle);
fm.beginTransaction().replace(R.id.content_frame, fp).commit();
fm.beginTransaction().replace(R.id.content_frame, fh).commit();
}
Try this code
fragname fragname = new fragname();
Bundle bundle = new Bundle();
bundle.putCharSequence(bundle_string, yourstring);
fragname.setArguments(bundle);
FragmentManager manager = getActivity().getSupportFragmentManager();
manager.beginTransaction().replace(R.id.fragmentlayout, fragname, fragname.getTag()).commit();
Note:
if you're in a Activity and you're calling a new fragment, take out the IgetActivity()., its only necessary whet you call a fragment from another fragment
I have two fragments and I am trying to pass an integer between them. In the first one, in Fragment_1.java I have this in onCreate:
pontszam = 12;
Fragment fragment = new Fragment_2();
Bundle bundle = new Bundle();
bundle.putInt("pont", pontszam);
fragment.setArguments(bundle);
Then in the second fragment, in Fragment_2.java I have this in onCreate:
Bundle bundle = this.getArguments();
int myInt = bundle.getInt("pont");
TextView pontjelzo = (TextView)rootView.findViewById(R.id.pontszam_2);
pontjelzo.setText(Integer.toString(myInt));
But I get nullpointer exception on this line:
int myInt = bundle.getInt("pont");
What am I doing wrong?
And this is how I open my second fragment:
button_1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
FragmentManager fragmentManager = getFragmentManager ();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction ();
fragmentTransaction.setCustomAnimations(R.anim.enter_from_right, R.anim.exit_to_left).replace(R.id.content_frame, new Fragment_2());
fragmentTransaction.commit ();
}});
You are replacing your first Fragment with a new Fragment_2 instead of the one which has a Bundle.
Declare your Fragment_2above onCreate (globally), instantiate it:
fragment = new Fragment_2();
And change your replace line:
fragmentTransaction.replace(R.id.content_frame, fragment);
I am trying to pass an object Fragment -> Activity -> Fragment.
My 2nd Fragment says my object is null when getting arguments:
Fragment A: (Sending Object, communicator is interface to Main Activity)
meetsListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
Meet meet = new Meet();
meet = meetList.get(position); // meet is not null here
communicator.changeToolbarTitle(meet.getName());
****** Sends Meet object to main activity ********
communicator.sendMeetToMeetProfile(meet);
}
});
Main Activity:
#Override
public void sendMeetToMeetProfile(Meet meet) {
MeetAthletesListContainer meetAthletesListContainer = new MeetAthletesListContainer();
***** Fragment is not replaced just called *******
MeetAthletesMales meetAthletesMales = new MeetAthletesMales();
MeetAthletesFemales meetAthletesFemales = new MeetAthletesFemales();
FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
Bundle bundleMales = new Bundle();
bundleMales.putParcelable("meetAthletesMales", meet);
meetAthletesMales.setArguments(bundleMales);
Bundle bundleFemales = new Bundle();
bundleFemales.putParcelable("meetAthletesFemales", meet);
meetAthletesFemales.setArguments(bundleFemales);
******* Replaces current fragment with container that contains above (2) fragments *******
transaction.replace(R.id.frameLayout, meetAthletesListContainer, "meetAthletesListContainer");
transaction.addToBackStack(null);
transaction.commit();
}
Fragment B: (Fragment is contained inside another fragment)
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
view = inflater.inflate(R.layout.fragment_meet_athletes_males, container, false);
Log.e("", "Fragment onCreateView Called!");
initializeVar();
*****Says this meet object is null*****
meet = getArguments().getParcelable("meetAthletesMales");
}
I am replacing a fragment with another but passing the object to a fragment which is inside another fragment(meet_container_fragment). So my object is being sent directly to the fragment. I got this working in another instance where I actually replace the fragment but I want to replace the FRAGMENT CONTAINER, not the actual fragment B
Try this
MeetAthletesListContainer meetAthletesListContainer = new MeetAthletesListContainer();
***** Fragment is not replaced just called *******
MeetAthletesMales meetAthletesMales = new MeetAthletesMales();
MeetAthletesFemales meetAthletesFemales = new MeetAthletesFemales();
FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
Bundle bundle = new Bundle();
bundle.putParcelable("meetAthletesMales", meet);
bundle.putParcelable("meetAthletesFemales", meet);
meetAthletesFemales.setArguments(bundle);
******* Replaces current fragment with container that contains above (2) fragments *******
transaction.replace(R.id.frameLayout, meetAthletesListContainer, "meetAthletesListContainer");
transaction.addToBackStack(null);
transaction.commit();
Try this,
main activity
FragmentB fragmentb = FragmentB.newInstance(appContext,meet);
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.add(R.id.contentContainer, fragmentb , tag);
Fragment B
public static FragmentB newInstance(AppContext appContext, Meet meet) {
FragmentB fragment = new FragmentB();
Bundle args = new Bundle();
args.putSerializable(ARG_APP_CONTEXT, appContext);
args.putString(ARG_MEET_NAME, meet.name);
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
appContext = (AppContext) getArguments().get(ARG_APP_CONTEXT);
name= getArguments().getString(ARG_MEET_NAME);
}
}
also make Meet implements Serializable
I have trouble understanding in FragmentTransaction.replace(id, fragment, 'string') what does .replace actually
I read somewhere that it will replace the content of view id with fragment but in my
public class MainActivity extends
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
if (findViewById(R.id.fragment_container) !=null) {
if(savedInstanceState!=null){
return ;
}
ArticleFragment first_fragment = new ArticleFragment();
HeadlineFragment second_fragment = new HeadlineFragment();
first_fragment.setArguments(getIntent().getExtras());
second_fragment.setArguments(getIntent().getExtras());
FragmentTransaction manager=getSupportFragmentManager().beginTransaction();
manager.add(R.id.fragment_container, first_fragment,"first");
manager.add(R.id.fragment_container, second_fragment,"second");
manager.commit();
}
abc newFragment = new abc();
Bundle args = new Bundle();
FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
transaction.replace(R.id.fragment_container, newFragment,"second");
transaction.addToBackStack(null);
transaction.commit();
}
}
it only replaces the first fragment that i added to Transaction, i.e. first_fragment.
And how do i replace a specific fragment?
The issue seems to be with R.id.fragment_container. You should have a different first argument on the line below in order to replace a fragment that is not your "first" fragment:
manager.add(R.id.fragment_container, second_fragment,"second");