I have a list fragment from where when any list item is clicked, I want to move to another list fragement.
import java.util.Arrays;
import java.util.List;
import android.os.Bundle;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.app.ListFragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;
public class Schedule extends ListFragment{
....
....
public void onListItemClick(ListView l, View v, int position, long id) {
....
android.support.v4.app.FragmentManager fragmentManager = getFragmentManager();
android.support.v4.app.FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
DailyList fragment = new DailyList();
fragmentTransaction.replace(R.id.list_fragment, fragment);
fragmentTransaction.commit();
}
This is the new class that I am trying to move to.
public class DailyList extends ListFragment {
public View onCreateView(LayoutInflater inflater,
ViewGroup container, Bundle savedInstanceState){
final View theInflatedView = inflater.inflate(R.layout.day, container, false);
return theInflatedView;
}
....
....
....
}
I tried using v4 android support libraries. but the replace call is giving me this error "The method replace(int, Fragment) in the type FragmentTransaction is not applicable for the arguments (int, DailyList)".
I read few other answers that asked to use v4. That is what I am doing. But still getting error. Please help me out here. Thanks!
I think you are mixing newer fragment support types with support classes. Replace these lines:
import android.app.Fragment;
import android.app.FragmentManager;
with:
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
Then extend
android.support.v4.app.FragmentActivity
instead of
Activity
and change calls like
getFragmentManager()
with
getSupportFragmentManager()
and similarly for other methods that you might be using.
Related
I could solve how to hide or show a Floating Action Button from a fragment when I call it.
But I faced with another problem that I didn't know how to solve it, when I rotate my phone,
the FAB appears again.
You can see my code below and how I did to hide my FAB, but how to keep it when my phone rotate from
Portrait to Landscape?
package com.example.cursobaralhocigano.ui.deck;
import android.os.Bundle;
import androidx.fragment.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.CheckBox;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.Toast;
import com.example.cursobaralhocigano.MainActivity;
import com.example.cursobaralhocigano.R;
import com.example.cursobaralhocigano.classes.cBaralhos;
import com.example.cursobaralhocigano.dao.uLibSql;
import com.google.android.material.floatingactionbutton.FloatingActionButton;
/**
* A simple {#link Fragment} subclass.
*/
public class DeckFragment extends Fragment implements View.OnClickListener {
private uLibSql DB;
private cBaralhos baralho = new cBaralhos();
CheckBox ck01, ck02, ck03, ck04, ck05;
ImageButton Img;
public DeckFragment() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
// Inflate the layout for this fragment
LinearLayout ln;
View view = inflater.inflate(R.layout.fragment_deck, container, false);
final FloatingActionButton fab = ((MainActivity) getActivity()).findViewById(R.id.fab);
if (fab.isShown()) {
fab.hide();
}
return view;
}
Thanks a lot for help
Regards
Alex
You have to correctly save the instance state of Fragment you should do the following:
In the fragment, save instance state by overriding onSaveInstanceState() and restore in onActivityCreated():
Below link may help you
https://stackoverflow.com/a/17135346/10239870
When I call fragment from activity then fragment calling successfully but some part of previous activity is on the top of in fragment, anyone help to correct the code
package com.example.newproject;
import androidx.appcompat.app.AppCompatActivity;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentManager;
import androidx.fragment.app.FragmentTransaction;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.LinearLayout;
import static android.view.View.GONE;
public class ThankYouPageActivity extends AppCompatActivity {
Button thank_continue_btn,thank_track_btn;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_thank_you_page);
getSupportActionBar().setTitle("Confirmation");
thank_continue_btn = findViewById(R.id.thank_continue_btn);
thank_track_btn = findViewById(R.id.thank_track_btn);
findViewById(R.id.thank_continue_btn).setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
FragmentManager fm = getSupportFragmentManager();
HomeFragment fragment = new HomeFragment();
fm.beginTransaction().replace(R.id.thanku_container, fragment).addToBackStack(null).commit();
set background to white in the root tag of your fragment's xml
background = "#FFFFFF"
The container of your Fragment must be overlapped by your Activity layouts. Please attach the layouts of your Activity and Fragment so that I can help you find your issue.
I had same issues , i fixed it by removing previous fragment while setting new fragment in oncreateview
container.removeAllViews(); before replacing the fragment
R.id.thanku_container - I think it is FrameLayout?
Make it full match_parent. Or set background color like activity.
I am very new to Android programming and I was wondering how I am able to fix this error that I'm getting. I have scowwered the internet searching for solutions on how to compensate for the fact that I have api 15 instead of the required 17 for my FragmentTransaction. I tried importing the support.v4.app.FragmentTransaction but still no luck here is the code:
package com.hfad.workout;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import android.support.v4.app.FragmentTransaction;
import android.app.Fragment;
public class WorkoutDetailFragment extends Fragment {
private long workoutId;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
if(savedInstanceState != null)
{
workoutId = savedInstanceState.getLong("workoutId");
}
android.support.v4.app.FragmentTransaction ft = getChildFragmentManager().beginTransaction();
StopwatchFragment stopwatchFragment = new StopwatchFragment();
ft.replace(R.id.stopwatch_container, stopwatchFragment);
ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE);
ft.commit();
return inflater.inflate(R.layout.fragment_workout_detail, container, false);
}
}
Any reason as to why the support.v4.app might not be working? Is there a work around to this? Any help is greatly appreciated :D
You have use "import android.app.Fragment" for your fragment.That's why your support.v4.appnot working here.
Try to import android.support.v4.app.Fragment for using android.support.v4.app.FragmentTransaction.
You can try to chaging from
import android.app.Fragment;
public class WorkoutDetailFragment extends Fragment {
to
import android.support.v4.app;
public class WorkoutDetailFragment extends Fragment {
I am getting a cannot resolve symbol error on CrimeFragment and I don't know why. I am a beginner so I'm not sure how to fix this. Here is the code for CrimeActivity.java
package com.bignerdranch.android.criminalintent;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
public class CrimeActivity extends FragmentActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_crime);
FragmentManager fm = getSupportFragmentManager();
Fragment fragment = fm.findFragmentById(R.id.fragment_container);
if (fragment == null) {
fragment = new CrimeFragment();
fm.beginTransaction()
.add(R.id.fragment_container, fragment)
.commit();
}
}
}
Seems like you aren't importing your class CrimeFragment
Make sure that CrimeFragment.java and Crime.java are in the right packages. Select "Packages" view in the top-left corner. If these files hang around separately at the bottom, drag and drop them into the "com.(..).criminalintent" package.
I have been trying to build a Master-Detail f low in android but wanted to change one of the detail fragments to a different fragment. As this is one of my first Android applications, I was just trying to make a picture appear on this new fragment. For this, I built the following two classes
1) Fragment class ( displays the picture to be displayed )
package com.userName.miscapp;
import com.userName.miscapp.dummy.DummyContent;
import android.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
public class PictureFragment extends Fragment {
// Default Copy Constructor for the fragment
public PictureFragment() {
}
#Override
public void onCreate ( Bundle savedInstanceState )
{
super.onCreate(savedInstanceState);
}
#Override
public View onCreateView ( LayoutInflater inflater , ViewGroup container , Bundle savedInstanceState )
{
View rootView = inflater.inflate(R.layout.fragment_simple_picture, container, false);
return rootView;
}
}
2) Activity to display the same
package com.userName.miscapp;
import android.os.Bundle;
import android.app.Activity;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.view.Menu;
public class SimplePicture extends FragmentActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getActionBar().setDisplayHomeAsUpEnabled(true);
if (savedInstanceState == null) {
// Create the detail fragment and add it to the activity
// using a fragment transaction.
Bundle arguments = new Bundle();
arguments.putString(ItemDetailFragment.ARG_ITEM_ID,
getIntent().getStringExtra(ItemDetailFragment.ARG_ITEM_ID));
PictureFragment frag = new PictureFragment();
frag.setArguments(arguments);
android.support.v4.app.FragmentManager fragmentManager = getSupportFragmentManager();
android.support.v4.app.FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.add(R.id.simple_picture_container,frag).commit();
//setContentView(R.layout.activity_simple_picture);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.simple_picture, menu);
return true;
}
}
On compilation, it does not recognize the PictureFragment to be an extension of Fragment class. This is inspite of it being clearly written in the first file. Searching for solutions on Stackoverflow said to extend FragmentActivity instead of Activity and trying to use getSupportFragmentManager() neither of which helped.
PS : Using 11 as the base for the current application.
Any help would be appreciated
Thanks
This is because you are using android.app.Fragment from new API in conjunction with android.support.v4.app.FragmentManager from support library, you should replace import in your PictureFragment from android.app.Fragment to android.support.v4.app.Fragment to make it work.