Develop Reference

How to fix EditText part from ListView inside fragment?

Wanna make to search with using EditText when I click it from ListView. I made it with some youtube videos or blogs. Mixed up those and of course, There's error. What should fix? I put my every codes to understand it. Need you guys help a lot.
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".Playbook">
<ListView
android:id="#+id/listView2"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"/>
</androidx.constraintlayout.widget.ConstraintLayout>
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:padding="16dp"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:layout_width="50dp"
android:layout_height="50dp"
android:src="#drawable/ic_baseline_search_24"
android:id="#+id/searchImage" />
<EditText
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_toRightOf="#id/searchImage"
android:id="#+id/editTextFilter"/>
<TextView
android:id="#+id/termName"
android:layout_marginLeft="20dp"
android:layout_marginTop="20dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#id/editTextFilter"
style="#style/TextAppearance.AppCompat.Title"
android:text="Term"/>
</RelativeLayout>
This is layout part.
package com.example.gridiron;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import androidx.fragment.app.Fragment;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.EditText;
import android.widget.ListView;
import java.util.ArrayList;
/**
* A simple {#link Fragment} subclass.
* Use the {#link Playbook#newInstance} factory method to
* create an instance of this fragment.
*/
public class Playbook extends Fragment {
ArrayList<PlaybookList> arrayList2;
ListView listView2;
private static PlaybookListAdapter playbookListAdapter;
// TODO: Rename parameter arguments, choose names that match
// the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
private static final String ARG_PARAM1 = "param1";
private static final String ARG_PARAM2 = "param2";
// TODO: Rename and change types of parameters
private String mParam1;
private String mParam2;
public Playbook() {
// Required empty public constructor
}
/**
* Use this factory method to create a new instance of
* this fragment using the provided parameters.
*
* #param param1 Parameter 1.
* #param param2 Parameter 2.
* #return A new instance of fragment Playbook.
*/
// TODO: Rename and change types and number of parameters
public static Playbook newInstance(String param1, String param2) {
Playbook fragment = new Playbook();
Bundle args = new Bundle();
args.putString(ARG_PARAM1, param1);
args.putString(ARG_PARAM2, param2);
fragment.setArguments(args);
return fragment;
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
mParam1 = getArguments().getString(ARG_PARAM1);
mParam2 = getArguments().getString(ARG_PARAM2);
}
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_playbook, container, false);
ListView listView2 = (ListView) view.findViewById(R.id.listView2);
EditText editTextFilter = (EditText) view.findViewById(R.id.editTextFilter);
ArrayList<PlaybookList> arrayList2 = new ArrayList<>();
arrayList2.add(new PlaybookList("Quarterback", "https://namu.wiki/w/%EC%BF%BC%ED%84%B0%EB%B0%B1"));
arrayList2.add(new PlaybookList("Runningback", "https://namu.wiki/w/%EB%9F%AC%EB%8B%9D%EB%B0%B1"));
PlaybookListAdapter playbookListAdapter = new PlaybookListAdapter(getActivity(), R.layout.list_row2, arrayList2);
listView2.setAdapter(playbookListAdapter);
editTextFilter.addTextChangedListener(new TextWatcher() {
#Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
#Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
#Override
public void afterTextChanged(Editable edit) {
String filterText = edit.toString();
if (filterText.length() > 0) {
listView2.setFilterText(filterText);
} else {
listView2.clearTextFilter();
}
}
});
listView2.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(String.valueOf(arrayList2.get(position).getTermURL())));
getActivity().startActivity(intent);
}
});
return view;
}
}
package com.example.gridiron;
public class PlaybookList {
String TermName;
String TermURL;
public PlaybookList(String termName, String termURL) {
TermName = termName;
TermURL = termURL;
}
public String getTermName() {
return TermName;
}
public void setTermName(String termName) {
TermName = termName;
}
public String getTermURL() {
return TermURL;
}
public void setTermURL(String termURL) {
TermURL = termURL;
}
}
package com.example.gridiron;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import java.util.ArrayList;
public class PlaybookListAdapter extends ArrayAdapter<PlaybookList> {
private Context mContext;
private int mResource;
public PlaybookListAdapter(#NonNull Context context, int resource, #NonNull ArrayList<PlaybookList> objects) {
super(context, resource, objects);
this.mContext = context;
this.mResource = resource;
}
#NonNull
#Override
public View getView(int position, #Nullable View convertView, #NonNull ViewGroup parent) {
LayoutInflater layoutInflater = LayoutInflater.from(mContext);
convertView = layoutInflater.inflate(mResource, parent, false);
TextView termName = convertView.findViewById(R.id.termName);
termName.setText(getItem(position).getTermName());
return convertView;
}
}
And last 3 codes are for class. It's really hard to make it. Please, Help me!

There is no ListView in your layout code. You didn't include the error but I'm pretty sure it's NullPointerException on this line:
listView2.setAdapter(playbookListAdapter);

Scrollview is not working in fragment

<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
tools:context="mcb.myclickbazaar.Fragments.DateTimePlace">
<ScrollView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:isScrollContainer="false"
android:fillViewport="true"
android:padding="10dp">
<LinearLayout>
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout...>
<LinearLayout...>
<LinearLayout...>
<LinearLayout...>
</LinearLayout>
</ScrollView>
</RelativeLayout>
The scrollview is not working. I have tried all the answers from stackoverflow, but still can't find a way to solve this issue.
This xml file is a fragment. It is one of the fragment from tabbedView Activity.
EDIT
JAVA FILE
package mcb.myclickbazaar.Activity;
import android.net.Uri;
import android.os.Bundle;
import android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import java.util.ArrayList;
import java.util.List;
import mcb.myclickbazaar.Fragments.DateTimePlace;
import mcb.myclickbazaar.Fragments.FinalBill;
import mcb.myclickbazaar.Fragments.ItemSelect;
import mcb.myclickbazaar.R;
public class ProceedingsActivity extends AppCompatActivity implements ItemSelect.OnFragmentInteractionListener,
DateTimePlace.OnFragmentInteractionListener,FinalBill.OnFragmentInteractionListener{
private static final String TAG = "ProceedingsActivity";
private ViewPager mViewPager;
private TabLayout tabLayout;
private ViewPager viewPager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_proceedings);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
toolbar = (Toolbar) findViewById(R.id.toolbar);
//setSupportActionBar(toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
// Create the adapter that will return a fragment for each of the three
// primary sections of the activity.
viewPager = (ViewPager) findViewById(R.id.viewpager_proceedings);
setupViewPager(viewPager);
tabLayout = (TabLayout) findViewById(R.id.tabs);
tabLayout.setupWithViewPager(viewPager);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_proceedings, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
private void setupViewPager(ViewPager viewPager) {
ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());
adapter.addFragment(new ItemSelect(), "Select");
adapter.addFragment(new DateTimePlace(), "DateTime");
adapter.addFragment(new FinalBill(), "Bill");
viewPager.setAdapter(adapter);
}
#Override
public void onFragmentInteraction(Uri uri) {
Log.e(TAG,"Working: on onFragmentInteraction");
}
class ViewPagerAdapter extends FragmentPagerAdapter {
private final List<Fragment> mFragmentList = new ArrayList<>();
private final List<String> mFragmentTitleList = new ArrayList<>();
public ViewPagerAdapter(FragmentManager manager) {
super(manager);
}
#Override
public Fragment getItem(int position) {
return mFragmentList.get(position);
}
#Override
public int getCount() {
return mFragmentList.size();
}
public void addFragment(Fragment fragment, String title) {
mFragmentList.add(fragment);
mFragmentTitleList.add(title);
}
#Override
public CharSequence getPageTitle(int position) {
return mFragmentTitleList.get(position);
}
}
}
Fragment Code
package mcb.myclickbazaar.Fragments;
import android.content.Context;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.Spinner;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
import java.util.Locale;
import mcb.myclickbazaar.R;
/**
* A simple {#link Fragment} subclass.
* Activities that contain this fragment must implement the
* {#link DateTimePlace.OnFragmentInteractionListener} interface
* to handle interaction events.
* Use the {#link DateTimePlace#newInstance} factory method to
* create an instance of this fragment.
*/
public class DateTimePlace extends Fragment implements AdapterView.OnItemSelectedListener {
// TODO: Rename parameter arguments, choose names that match
// the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
private static final String ARG_PARAM1 = "param1";
private static final String ARG_PARAM2 = "param2";
// TODO: Rename and change types of parameters
private String mParam1;
private String mParam2;
private String upcoming_date_1,upcoming_date_2,upcoming_date_3,upcoming_date_4;
private EditText editText_date;
private EditText editText_time;
private Spinner spinner_calendar;
private Spinner spinner_time;
private OnFragmentInteractionListener mListener;
public DateTimePlace() {
// Required empty public constructor
}
/**
* Use this factory method to create a new instance of
* this fragment using the provided parameters.
*
* #param param1 Parameter 1.
* #param param2 Parameter 2.
* #return A new instance of fragment DateTimePlace.
*/
// TODO: Rename and change types and number of parameters
public static DateTimePlace newInstance(String param1, String param2) {
DateTimePlace fragment = new DateTimePlace();
Bundle args = new Bundle();
args.putString(ARG_PARAM1, param1);
args.putString(ARG_PARAM2, param2);
fragment.setArguments(args);
return fragment;
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
mParam1 = getArguments().getString(ARG_PARAM1);
mParam2 = getArguments().getString(ARG_PARAM2);
}
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
// Spinner element
final View view = inflater.inflate(R.layout.fragment_date_time_place, container, false);
spinner_calendar = (Spinner) view.findViewById(R.id.spinner_calender);
spinner_time = (Spinner) view.findViewById(R.id.spinner_time);
editText_date = (EditText) view.findViewById(R.id.editText_SelectDate_DTP);
editText_time = (EditText) view.findViewById(R.id.editText_SelectTime_DTP);
editText_date.setFocusable(false);
editText_time.setFocusable(false);
editText_date.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
spinner_calendar.setVisibility(View.VISIBLE);
spinner_calendar.performClick();
editText_date.setHint("");
}
});
editText_time.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
spinner_time.setVisibility(View.VISIBLE);
spinner_time.performClick();
editText_time.setHint("");
}
});
// Spinner click listener
spinner_calendar.setOnItemSelectedListener(this);
// Spinner Drop down elements
List<String> categories_calender = new ArrayList<String>();
categories_calender.add("Today");
categories_calender.add("Tomorrow");
categories_calender.add(getUpcoming_Date(2));
categories_calender.add(getUpcoming_Date(3));
categories_calender.add(getUpcoming_Date(4));
categories_calender.add(getUpcoming_Date(5));
// Creating adapter for spinner
ArrayAdapter<String> dataAdapter_calendar = new ArrayAdapter<String>(getActivity(), android.R.layout.simple_spinner_item, categories_calender);
// Drop down layout style - list view with radio button
dataAdapter_calendar.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
// attaching data adapter to spinner
spinner_calendar.setAdapter(dataAdapter_calendar);
// Spinner click listener
spinner_time.setOnItemSelectedListener(this);
// Spinner Drop down elements
List<String> categories_time = new ArrayList<String>();
categories_time.add("9AM - 11AM");
categories_time.add("11AM - 1PM");
categories_time.add("1PM - 3PM");
categories_time.add("3PM - 5PM");
categories_time.add("5PM - 7PM");
// Creating adapter for spinner
ArrayAdapter<String> dataAdapter_time = new ArrayAdapter<String>(getActivity(), android.R.layout.simple_spinner_item, categories_time);
// Drop down layout style - list view with radio button
dataAdapter_time.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
// attaching data adapter to spinner
spinner_time.setAdapter(dataAdapter_time);
return view;
}
private String getUpcoming_Date(int upcoming){
Calendar c = Calendar.getInstance();
Date dt = new Date();
c.add(Calendar.DATE, upcoming);
SimpleDateFormat df = new SimpleDateFormat("EEE,dd MMM", Locale.US);
String formattedDate = df.format(c.getTime());
return formattedDate;
}
#Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
// On selecting a spinner item
String item = parent.getItemAtPosition(position).toString();
}
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
// TODO: Rename method, update argument and hook method into UI event
public void onButtonPressed(Uri uri) {
if (mListener != null) {
mListener.onFragmentInteraction(uri);
}
}
#Override
public void onAttach(Context context) {
super.onAttach(context);
if (context instanceof OnFragmentInteractionListener) {
mListener = (OnFragmentInteractionListener) context;
} else {
throw new RuntimeException(context.toString()
+ " must implement OnFragmentInteractionListener");
}
}
#Override
public void onDetach() {
super.onDetach();
mListener = null;
}
/**
* This interface must be implemented by activities that contain this
* fragment to allow an interaction in this fragment to be communicated
* to the activity and potentially other fragments contained in that
* activity.
* <p>
* See the Android Training lesson <a href=
* "http://developer.android.com/training/basics/fragments/communicating.html"
* >Communicating with Other Fragments</a> for more information.
*/
public interface OnFragmentInteractionListener {
void onFragmentInteraction(Uri uri);
}
}

try this :
make hight match_parent for relativeLayout and ScrollView both like below
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="10dp"
android:layout_alignParentBottom="true"
android:layout_alignParentEnd="true">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="sdsd"/>
</LinearLayout>
</ScrollView>
</RelativeLayout>

Keep scroll view height as match parent and the height of everything inside it as wrap content.

Why does list look strange in android listview?

So I was trying to make a listview inside the fragment, although the code works, this list itself looks wierd. Here's a picture of it.
I'd appreciate your help in figuring out why the list looks strange.
ussd.java (Fragment)
package layout;
import android.app.Activity;
import android.content.Context;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;
import com.buckydroid.app.droidcpu.R;
import com.buckydroid.app.droidcpu.ussdadaper;
import com.buckydroid.app.droidcpu.ussdz;
import com.google.android.gms.tagmanager.Container;
import java.util.ArrayList;
import java.util.List;
/**
* A simple {#link Fragment} subclass.
* Activities that contain this fragment must implement the
* {#link ussd.OnFragmentInteractionListener} interface
* to handle interaction events.
* Use the {#link ussd#newInstance} factory method to
* create an instance of this fragment.
*/
public class ussd extends Fragment {
// TODO: Rename parameter arguments, choose names that match
// the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
private static final String ARG_PARAM1 = "param1";
private static final String ARG_PARAM2 = "param2";
// TODO: Rename and change types of parameters
private String mParam1;
private String mParam2;
private ListView listView;
private ussdadaper ussd;
private List<ussdz> ussdlist;
private OnFragmentInteractionListener mListener;
public ussd() {
// Required empty public constructor
}
/**
* Use this factory method to create a new instance of
* this fragment using the provided parameters.
*
* #param param1 Parameter 1.
* #param param2 Parameter 2.
* #return A new instance of fragment ussd.
*/
// TODO: Rename and change types and number of parameters
public static ussd newInstance(String param1, String param2) {
ussd fragment = new ussd();
Bundle args = new Bundle();
args.putString(ARG_PARAM1, param1);
args.putString(ARG_PARAM2, param2);
fragment.setArguments(args);
return fragment;
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
mParam1 = getArguments().getString(ARG_PARAM1);
mParam2 = getArguments().getString(ARG_PARAM2);
}
}
#Override
public View onCreateView( LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState )
{
View rootView = inflater.inflate(R.layout.fragment_ussd, container, false);
listView = (ListView)rootView.findViewById(R.id.listView);
ussdlist = new ArrayList<>();
ussdlist.add(new ussdz("*#44336#","Software Version Info"));
ussdlist.add(new ussdz("*#44336#","Software Version Info"));
ussdlist.add(new ussdz("*#44336#","Software Version Info"));
ussdlist.add(new ussdz("*#44336#","Software Version Info"));
ussdlist.add(new ussdz("*#44336#","Software Version Info"));
ussdlist.add(new ussdz("*#44336#","Software Version Info"));
ussdlist.add(new ussdz("*#44336#","Software Version Info"));
ussdlist.add(new ussdz("*#44336#","Software Version Info"));
ussd = new ussdadaper(getActivity(),ussdlist);
listView .setAdapter(ussd); //you should setthe adapter to the listview
return rootView;
}
// TODO: Rename method, update argument and hook method into UI event
#Override
public void onAttach(Context context) {
super.onAttach(context);
}
#Override
public void onDetach() {
super.onDetach();
mListener = null;
}
public interface OnFragmentInteractionListener {
public void onFragmentInteractionHome(Uri uri);
public void openHome(View view);
}
}
/**
* This interface must be implemented by activities that contain this
* fragment to allow an interaction in this fragment to be communicated
* to the activity and potentially other fragments contained in that
* activity.
* <p/>
* See the Android Training lesson <a href=
* "http://developer.android.com/training/basics/fragments/communicating.html"
* >Communicating with Other Fragments</a> for more information.
*/
Adapter
package com.buckydroid.app.droidcpu;
import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;
import java.util.List;
/**
* Created by BuckyDroid on 14-06-2016.
*/
public class ussdadaper extends BaseAdapter {
private Context ussds;
private List<ussdz> ussdlist;
public ussdadaper(Context ussds, List<ussdz> ussdlist) {
this.ussds = ussds;
this.ussdlist = ussdlist;
}
#Override
public int getCount() {
return ussdlist.size();
}
#Override
public Object getItem(int position) {
return ussdlist.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View v= View.inflate(ussds,R.layout.item_listview,null);
TextView ussdcode = (TextView)v.findViewById(R.id.textView1);
TextView ussddesc = (TextView)v.findViewById(R.id.textView2);
ussdcode.setText(ussdlist.get(position).getUSSD());
ussddesc.setText(ussdlist.get(position).getDescription());
return v;
}
}
ussdz.java
package com.buckydroid.app.droidcpu;
/**
* Created by BuckyDroid on 14-06-2016.
*/
public class ussdz
{
private int id;
private String USSD;
private String Description;
public ussdz(String description, String s) {
Description = description;
this.USSD = USSD;
this.id = id;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getUSSD() {
return USSD;
}
public void setUSSD(String USSD) {
this.USSD = USSD;
}
public String getDescription() {
return Description;
}
public void setDescription(String description) {
Description = description;
}
}
item_listview.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#android:color/transparent"
android:paddingLeft="5dp"
android:paddingRight="5dp"
android:orientation="vertical"
>
<LinearLayout
android:id="#+id/lyt"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:minHeight="1px"
android:gravity="left|top"
android:padding="2dp"
android:orientation="horizontal" >
<TextView
android:id="#+id/textView1"
android:layout_width="0dp"
android:layout_weight="5"
android:layout_height="wrap_content"
android:textColor="#color/darker_grey"
android:gravity="left|top"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="Name"
android:textStyle="bold"/>
<TextView
android:gravity="left|top"
android:id="#+id/textView3"
android:layout_width="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:layout_height="wrap_content"
android:textColor="#color/darker_grey"
android:paddingLeft="5dp"
android:paddingRight="10dp"
android:text=":" />
<TextView
android:textStyle="bold"
android:gravity="left|top"
android:id="#+id/textView2"
android:layout_width="0dp"
android:layout_weight="6"
android:layout_height="wrap_content"
android:textColor="#color/darker_grey"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="Medium Text"/>
</LinearLayout>
</LinearLayout>
Update:
fragment's xml file
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="layout.ussd">
<!-- TODO: Update blank fragment layout -->
<ListView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/listView"
android:layout_gravity="center" />
</FrameLayout>

In your ussdz object your are not settign the USSD:
public ussdz(String description, String s) {
Description = description;
this.USSD = USSD; //No need to do that, it will be still null
this.id = id; //No need to do that, it will be still null
}
so you can add the SDD value in constructor:
private int id;
private String USSD;
private String description;
public ussdz(int mId, String mDescription, String mUSSD) {
description = mDescription;
this.USSD = mUSSD;
this.id = mId;
}
And construct an object like:
ussdz myObject = new ussdz(1, "description", "4529697");

Issue with TabLayout in fragment (android/java)

i've tried to add tabLayout in my application. When I open the fragment (where there is my tablayout) for the first time it works fine, but if I close the fragment and I try to re-open it, the tab indicator doesn't follow my swipe and all viewPager became blank... how can I resolve this problem?
my fragment:
package com.gabrielemarcozzi.mycal;
import android.app.Activity;
import android.net.Uri;
import android.os.Bundle;
import android.app.Fragment;
import android.support.design.widget.TabLayout;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.widget.Toolbar;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
public class PercentageFragment extends Fragment {
// TODO: Rename parameter arguments, choose names that match
// the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
private static final String ARG_PARAM1 = "param1";
private static final String ARG_PARAM2 = "param2";
// TODO: Rename and change types of parameters
private String mParam1;
private String mParam2;
private OnFragmentInteractionListener mListener;
/**
* Use this factory method to create a new instance of
* this fragment using the provided parameters.
*
* #param param1 Parameter 1.
* #param param2 Parameter 2.
* #return A new instance of fragment PercentageFragment.
*/
// TODO: Rename and change types and number of parameters
public static PercentageFragment newInstance(String param1, String param2) {
PercentageFragment fragment = new PercentageFragment();
Bundle args = new Bundle();
args.putString(ARG_PARAM1, param1);
args.putString(ARG_PARAM2, param2);
fragment.setArguments(args);
return fragment;
}
public PercentageFragment() {
// Required empty public constructor
}
private FragmentActivity context;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
mParam1 = getArguments().getString(ARG_PARAM1);
mParam2 = getArguments().getString(ARG_PARAM2);
}
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_percentage, container, false);
Toolbar mToolbar = (Toolbar)getActivity().findViewById(R.id.toolbar);
mToolbar.setTitle(R.string.percentage);
ViewPager percentagePager = (ViewPager)view.findViewById(R.id.percentage_pager);
percentagePager.setAdapter(new PercentagePagerAdapter(context.getSupportFragmentManager()));
TabLayout percentageTab = (TabLayout)view.findViewById(R.id.percentage_tabs);
percentageTab.setupWithViewPager(percentagePager);
return view;
}
// TODO: Rename method, update argument and hook method into UI event
public void onButtonPressed(Uri uri) {
if (mListener != null) {
mListener.onFragmentInteraction(uri);
}
}
#Override
public void onAttach(Activity activity) {
super.onAttach(activity);
try {
MainActivity main = (MainActivity) activity;
mListener = main;
context = (FragmentActivity) activity;
} catch (ClassCastException e) {
throw new ClassCastException(activity.toString()
+ " must implement OnFragmentInteractionListener");
}
}
#Override
public void onDetach() {
super.onDetach();
mListener = null;
}
/**
* This interface must be implemented by activities that contain this
* fragment to allow an interaction in this fragment to be communicated
* to the activity and potentially other fragments contained in that
* activity.
* <p/>
* See the Android Training lesson <a href=
* "http://developer.android.com/training/basics/fragments/communicating.html"
* >Communicating with Other Fragments</a> for more information.
*/
public interface OnFragmentInteractionListener {
// TODO: Update argument type and name
public void onFragmentInteraction(Uri uri);
}
class PercentagePagerAdapter extends FragmentPagerAdapter {
String[] pergentageTabsArray;
public PercentagePagerAdapter(FragmentManager fm) {
super(fm);
pergentageTabsArray = getResources().getStringArray(R.array.percentage_tabs);
}
#Override
public android.support.v4.app.Fragment getItem(int position) {
TabsPercentageFragment TabsPercFrag = TabsPercentageFragment.getIstance(position);
return TabsPercFrag;
}
#Override
public CharSequence getPageTitle(int position) {
return pergentageTabsArray[position];
}
#Override
public int getCount() {
return 3;
}
}
public static class TabsPercentageFragment extends android.support.v4.app.Fragment {
public static TabsPercentageFragment getIstance(int position) {
TabsPercentageFragment increaseFrag = new TabsPercentageFragment();
Bundle args = new Bundle();
args.putInt("position", position);
increaseFrag.setArguments(args);
return increaseFrag;
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view;
Bundle bundle = getArguments();
switch(bundle.getInt("position")) {
case 1:
view = inflater.inflate(R.layout.fragment_discount, container, false);
break;
case 2:
view = inflater.inflate(R.layout.fragment_xofy, container, false);
break;
default:
view =inflater.inflate(R.layout.fragment_increase, container, false);
break;
}
return view;
}
}
}
my fragment xml file:
<LinearLayout
android:id="#+id/percentage_fragment"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="com.gabrielemarcozzi.mycal.PercentageFragment">
<android.support.design.widget.TabLayout
android:id="#+id/percentage_tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/colorPrimary"
app:tabMode="fixed"
app:tabIndicatorColor="#color/colorUp"
app:tabTextColor="#android:color/white"
app:tabSelectedTextColor="#color/colorUp"/>
<android.support.v4.view.ViewPager
android:id="#+id/percentage_pager"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"/>
<!-- TODO: Update blank fragment layout -->
</LinearLayout>

Try to user getChildFragmentManager() instead of getSupportFragmentManager() at:
percentagePager.setAdapter(new PercentagePagerAdapter(context.getSupportFragmentManager()));
and change your import from:
import android.app.Fragment;
to
import android.support.v4.app.Fragment;

Android - No view found for fragment

I'm trying to get my replaced fragment to appear in the detail fragment but after debugging my app on a tablet emulator and selecting the necessary list view item, the log cat gives me this error:
Caused by: java.lang.IllegalArgumentException: No view found for id 0x7f0c0050 (com.apptacularapps.exitsexpertlondonlite:id/detail_container) for fragment FragmentWCBank{3b4ea8fb #0 id=0x7f0c0050}
I really don't understand why I'm getting this error when my fragment is there within my project. Does anyone know what I'm doing wrong and how to fix this?
FragmentWCLine.java
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.ListView;
import android.widget.TextView;
public class FragmentWCLine extends android.support.v4.app.Fragment {
public final static String EXTRA_MESSAGE = "Station_key";
private class WC {
private CharSequence station;
private CharSequence zone;
private Class<? extends Activity> activityClass;
private Class<? extends android.support.v4.app.Fragment> fragmentClass;
public WC(int stationResId, int zoneResId, Class<? extends Activity> activityClass, Class<? extends android.support.v4.app.Fragment> fragmentClass) {
this.fragmentClass = fragmentClass;
this.activityClass = activityClass;
this.station = getResources().getString(stationResId);
this.zone = getResources().getString(zoneResId);
}
#Override
public String toString() { return station.toString(); }
public String getzone(){ return zone.toString(); }
}
private static WC[] mWC;
private boolean mTwoPane;
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState){
View v = inflater.inflate(R.layout.fragment_wc_line, container, false);
// Instantiate the list of stations.
mWC = new WC[]{
new WC(R.string.bank, R.string.zone_1, WCBankActivity.class, FragmentWCBank.class),
new WC(R.string.wat, R.string.zone_1, WCWATActivity.class, FragmentWCWAT.class)
};
final ListView listView = (ListView)v.findViewById(R.id.list_wc);
listView.setAdapter(new MyAdapter(getActivity(), mWC));
listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
if(mTwoPane){
setItemNormal();
View rowView = view;
setItemSelected(rowView);
}
else{
Intent intent = new Intent(getActivity(), mWC[position].activityClass);
String station = mWC[position].station.toString();
intent.putExtra(EXTRA_MESSAGE, station);
startActivity(intent);
}
}
public void setItemSelected(View view){
View rowView = view;
view.setBackgroundColor(Color.parseColor("#66CCCC"));
TextView tv0 = (TextView)rowView.findViewById(R.id.list_item_station);
tv0.setTextColor(Color.parseColor("#000099"));
TextView tv1 = (TextView)rowView.findViewById(R.id.list_item_zone);
tv1.setTextColor(Color.parseColor("#000099"));
}
public void setItemNormal()
{
for (int i=0; i< listView.getChildCount(); i++) {
View v = listView.getChildAt(i);
v.setBackgroundColor(Color.TRANSPARENT);
TextView tv0 = ((TextView) v.findViewById(R.id.list_item_station));
tv0.setTextColor(Color.WHITE);
TextView tv1 = ((TextView) v.findViewById(R.id.list_item_zone));
tv1.setTextColor(Color.parseColor("#B5B5B5"));
}
}
});
return v;
}
static class MyAdapter extends BaseAdapter {
static class ViewHolder {
TextView station;
TextView zone;
}
LayoutInflater inflater;
WC[] mWC;
public MyAdapter(Context contexts, WC[] samples) {
this.mWC = samples;
inflater = LayoutInflater.from(contexts);
}
#Override
public int getCount() {
return mWC.length;
}
#Override
public Object getItem(int position) {
return mWC[position];
}
#Override
public long getItemId(int position) {
return 0;
}
/**set selected position**/
private int selectPosition = -1;
public void setSelectPosition(int position){
if(position!=selectPosition){
selectPosition = position;
}
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder viewHolder;
if (convertView == null) {
convertView = inflater.inflate(R.layout.list_item_dualline, null);
viewHolder = new ViewHolder();
viewHolder.station = (TextView) convertView.findViewById(R.id.list_item_station);
viewHolder.zone = (TextView) convertView.findViewById(R.id.list_item_zone);
convertView.setTag(viewHolder);
} else {
viewHolder = (ViewHolder) convertView.getTag();
}
viewHolder.station.setText(mWC[position].station);
viewHolder.zone.setText(mWC[position].getzone());
//change item color
if(position==selectPosition){
convertView.setBackgroundColor(Color.parseColor("#000099"));
viewHolder.station.setTextColor(Color.parseColor("#000099"));
}else {
}
return convertView;
}
}
}
WCBankActivity.java
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.FragmentTransaction;
import android.support.v7.app.ActionBarActivity;
public class WCBankActivity extends ActionBarActivity {
public final static String EXTRA_MESSAGE = "Station_key";
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.fragment_wc_bank);
if (savedInstanceState == null) {
// Get the message from the intent
Intent intent = getIntent();
// Notice to specify the sender Activity for the message
String station = intent.getStringExtra(WCBankActivity.EXTRA_MESSAGE);
FragmentWCBank newFragment = new FragmentWCBank();
FragmentTransaction transaction = this.getSupportFragmentManager().beginTransaction();
transaction.replace(R.id.detail_container, newFragment);
transaction.commit();
}
}
}
FragmentWCBank.java
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
public class FragmentWCBank extends android.support.v4.app.Fragment {
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_wc_bank, container, false);
return v;
}
}
fragment inflation
fragment_wc_bank.xml layout
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/detail_container">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Bank"
android:id="#+id/textView0"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true" />
</RelativeLayout>
fragment_wc_line.xml layout
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/fragmentwcline">
<ListView
android:id="#+id/list_wc"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerVertical="false"
android:layout_centerHorizontal="true"/>
</LinearLayout>
activity_main.xml layout
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/master_container"
android:name="com.apptacularapps.exitsexpertlondonlite.FragmentMainList"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
activity_main.xml layout (sw600dp)
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:showDividers="middle"
tools:context=".MainActivity" >
<RelativeLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:id="#+id/master_container"/>
<FrameLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="3"
android:id="#+id/detail_container"/>
</LinearLayout>
Undesired result

Your code transaction.replace(R.id.detail_container...Now this may be the correct UI element. I am assuming this is the correct UI. If so, fragment_wc_bank layout xml does not have that ID detail_container, hence you get error, simple as that. However activity_main.xml has that ID, again I am assuming detail_container is the correct UI that you want.
Suggested code FROM:
setContentView(R.layout.fragment_wc_bank);
TO:
setContentView(R.layout.activity_main.xml);
Notes:
activity_main.xml is the only difference between the 2 codes above.
This is a common error but we all have to learn from this. Learn more about layouts. It is a critical knowledge in making Android apps.
There are 2 different activity_main.xml files you posted. They should at least be similar. Otherwise you could be very confused.

Your activity is trying to inflate a layout, then place a fragment into it in place of the view detail_container. detail_container does not exist in that layout- either you forgot to add it or you're inflating the wrong thing. I notice you're inflating R.layout.fragment_wc_bank for both the fragment and the main activity, my guess is you're inflating the wrong layout in the activity.