Use getVIew() to find fragment container Id in non static method

Use getVIew() to find fragment container Id in non static method - java

I am trying to use the following code
public int id=GeneralPreferenceFragment.getView().getParent().getId();
inside SettingAvtivity/MainActivity .
but it shows following error
Non-static method 'getView()' can not be referenced from a static Context
please help me resolving this issue
following is the method used
public void method1(View view)
{
Button bt1=(Button)findViewById(R.id.button);
bt1.setOnClickListener(new
View.OnClickListener() {
#Override
public void onClick(View view) {
// ViewGroup vg = (ViewGroup) mCurrentFragment.getView().getParent();
Toast.makeText(SettingsActivity.this,"Sound",Toast.LENGTH_SHORT).show();
DataSyncPreferenceFragment fragment;
GeneralPreferenceFragment fragment1;
GeneralPreferenceFragment frag1;
fragment= new DataSyncPreferenceFragment();
fragment1=new GeneralPreferenceFragment();
GeneralPreferenceFragment prefFragment = new GeneralPreferenceFragment();
int id = prefFragment.getView().getParent().getId();
FragmentManager fm=getFragmentManager();
FragmentTransaction ft=fm.beginTransaction();
ft.replace(R.id.layout_1id,fragment);
ft.remove(fragment1);
ft.add(R.id.layout_1id,fragment);
ft.addToBackStack(null);
ft.commit();
}
});
}
if i use an instance of General preferenceFragment then it shows
Cannot resolve getId();
code for header that links fragment-pref_header.xml
<preference-headers xmlns:android="http://schemas.android.com/apk/res/android">
<!-- These settings headers are only used on tablets. -->
<header
android:fragment="com.example.amit.check1.SettingsActivity$GeneralPreferenceFragment"
android:icon="#drawable/ic_info_black_24dp"
android:title="#string/pref_header_general"
android:id="#+id/id3"/>
<header
android:fragment="com.example.amit.check1.SettingsActivity$NotificationPreferenceFragment"
android:icon="#drawable/ic_notifications_black_24dp"
android:title="#string/pref_header_notifications" />
<header android:fragment="com.example.amit.check1.SettingsActivity$DataSyncPreferenceFragment"
android:icon="#drawable/ic_sync_black_24dp"
android:title="#string/pref_header_data_sync" />
</preference-headers>
SettingActivity.java
package com.example.amit.check1;
import android.annotation.TargetApi;
import android.app.Fragment;
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.content.Context;
import android.content.Intent;
import android.content.res.Configuration;
import android.media.Ringtone;
import android.media.RingtoneManager;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.preference.ListPreference;
import android.preference.Preference;
import android.support.annotation.IdRes;
import android.support.v7.app.ActionBar;
import android.preference.PreferenceFragment;
import android.preference.PreferenceManager;
import android.preference.RingtonePreference;
import android.telecom.Call;
import android.text.TextUtils;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.Toast;
import java.util.List;
public class SettingsActivity extends AppCompatPreferenceActivity {
//private int mcontainerid;
private static Preference.OnPreferenceChangeListener sBindPreferenceSummaryToValueListener = new Preference.OnPreferenceChangeListener() {
#Override
public boolean onPreferenceChange(Preference preference, Object value) {
String stringValue = value.toString();
if (preference instanceof ListPreference) {
ListPreference listPreference = (ListPreference) preference;
int index = listPreference.findIndexOfValue(stringValue);
preference.setSummary(
index >= 0
? listPreference.getEntries()[index]
: null);
}
else if (preference instanceof RingtonePreference) {
if (TextUtils.isEmpty(stringValue)) {
preference.setSummary(R.string.pref_ringtone_silent);
} else {
Ringtone ringtone = RingtoneManager.getRingtone(
preference.getContext(), Uri.parse(stringValue));
if (ringtone == null) {
// Clear the summary if there was a lookup error.
preference.setSummary(null);
} else {
// Set the summary to reflect the new ringtone display
// name.
String name = ringtone.getTitle(preference.getContext());
preference.setSummary(name);
}
}
} else {
// For all other preferences, set the summary to the value's
// simple string representation.
preference.setSummary(stringValue);
}
return true;
}
};
private static boolean isXLargeTablet(Context context) {
return (context.getResources().getConfiguration().screenLayout
& Configuration.SCREENLAYOUT_SIZE_MASK) >= Configuration.SCREENLAYOUT_SIZE_XLARGE;
}
private static void bindPreferenceSummaryToValue(Preference preference) {
preference.setOnPreferenceChangeListener(sBindPreferenceSummaryToValueListener);
sBindPreferenceSummaryToValueListener.onPreferenceChange(preference,
PreferenceManager
.getDefaultSharedPreferences(preference.getContext())
.getString(preference.getKey(), ""));
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// int id=GeneralPreferenceFragment.getView().getParent().getId();
setupActionBar();
}
private void setupActionBar() {
ActionBar actionBar = getSupportActionBar();
if (actionBar != null) {
actionBar.setDisplayHomeAsUpEnabled(true);
}
}
#Override
public boolean onIsMultiPane() {
return isXLargeTablet(this);
}
#Override
#TargetApi(Build.VERSION_CODES.HONEYCOMB)
public void onBuildHeaders(List<Header> target) {
loadHeadersFromResource(R.xml.pref_headers, target);
}
protected boolean isValidFragment(String fragmentName) {
return PreferenceFragment.class.getName().equals(fragmentName)
|| GeneralPreferenceFragment.class.getName().equals(fragmentName)
|| DataSyncPreferenceFragment.class.getName().equals(fragmentName)
|| NotificationPreferenceFragment.class.getName().equals(fragmentName);
}
#TargetApi(Build.VERSION_CODES.HONEYCOMB)
public static class GeneralPreferenceFragment extends PreferenceFragment {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.pref_general);
Preference preference = findPreference("launchFragment");
preference.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
#Override
public boolean onPreferenceClick(Preference preference) {
// launch fragment
// addPreferencesFromResource(R.xml.pref_notification);
// Toast.makeText(getActivity(),"hellp",Toast.LENGTH_SHORT).show();
return false;
}
});
setHasOptionsMenu(true);
bindPreferenceSummaryToValue(findPreference("example_text"));
bindPreferenceSummaryToValue(findPreference("example_list"));
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == android.R.id.home) {
startActivity(new Intent(getActivity(), SettingsActivity.class));
return true;
}
return super.onOptionsItemSelected(item);
}
}
#TargetApi(Build.VERSION_CODES.HONEYCOMB)
public static class NotificationPreferenceFragment extends PreferenceFragment {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.pref_notification);
setHasOptionsMenu(true);
bindPreferenceSummaryToValue(findPreference("notifications_new_message_ringtone"));
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == android.R.id.home) {
startActivity(new Intent(getActivity(), SettingsActivity.class));
return true;
}
return super.onOptionsItemSelected(item);
}
}
#TargetApi(Build.VERSION_CODES.HONEYCOMB)
public static class DataSyncPreferenceFragment extends PreferenceFragment {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.pref_data_sync);
setHasOptionsMenu(true);
bindPreferenceSummaryToValue(findPreference("sync_frequency"));
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == android.R.id.home) {
startActivity(new Intent(getActivity(), SettingsActivity.class));
return true;
}
return super.onOptionsItemSelected(item);
}
}
public void method1(View view)
{
Button bt1=(Button)findViewById(R.id.button);
bt1.setOnClickListener(new
View.OnClickListener() {
#Override
public void onClick(View view) {
// ViewGroup vg = (ViewGroup) mCurrentFragment.getView().getParent();
Toast.makeText(SettingsActivity.this,"Sound",Toast.LENGTH_SHORT).show();
DataSyncPreferenceFragment fragment;
GeneralPreferenceFragment fragment1;
GeneralPreferenceFragment frag1;
fragment= new DataSyncPreferenceFragment();
fragment1=new GeneralPreferenceFragment();
GeneralPreferenceFragment prefFragment = new GeneralPreferenceFragment();
// int id = prefFragment.getView().getId();
//String st=Integer.toString(id);
//Toast.makeText(SettingsActivity.this,st,Toast.LENGTH_SHORT).show();
// int id = frag1.getView().getParent().getId();
//ViewGroup vg = (ViewGroup) findViewById(id);
FragmentManager fm=getFragmentManager();
FragmentTransaction ft=fm.beginTransaction();
//ft.add(1234,fragment,"f1");
//int id=fragment.getId();
//String s1=Integer.toString(id);
// Toast.makeText(SettingsActivity.this,s1,Toast.LENGTH_SHORT).show();
// ft.add(R.id.layout_1id,fragment);
//ft.add() will add fragment in previous fragment to
// the previous fragment
// ft.replace(R.id.layout_1id,fragment);
// ft.hide(fragment1);
//ft.hide() is used to hide an fragment;
// ft.detach(fragment1);
//detach method removes the fragment from UI.but it can be reused with the help
//of attach method.
//Toast.makeText(SettingsActivity.this,"removed frag1",Toast.LENGTH_SHORT).show();
//ft.show(fragment);
ft.remove(fragment1);
//remove method removes the fragment from UI;you can reuse fragment again,for reusing
//again you would have to use add method
ft.add(R.id.layout_1id,fragment);
ft.addToBackStack(null);
ft.commit();
}
});
}
}

You need to call method getView() from instance of you class GeneralPreferenceFragment. I.e:
GeneralPreferenceFragment prefFragment = new GeneralPreferenceFragment();
// ... some business logic
public int id = prefFragment.getView().getParent().getId();

Related

What should the container be when FragmentPagerAdapter is used

So in NameList where it says "fragmentTransaction.add(android.R.id.content, fragment2, "login").commit();" I need to find the container of NameList when I try R.id.container a blank white screen appears. What should I put instead of android.R.id.content in this case?
NameList.java
package com.drdc1.medic;
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.content.Context;
import android.graphics.Color;
import android.os.Bundle;
import android.support.annotation.NonNull;
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.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.Map;
/**
* A simple {#link Fragment} subclass.
*/
public class NameList extends Fragment implements DataObserver {
private SoldierListAdapter adapter;
private HomeActivity homeActivity;
private ArrayList<Soldier> soldiers = new ArrayList<>();
public NameList() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_name_list, container, false);
homeActivity = (HomeActivity) getActivity();
homeActivity.registerFragment(this);
final ListView listView = (ListView) rootView.findViewById(R.id.soldierList);
addListHeader(listView);
DataManager dbManager = ((AppContext) getActivity().getApplication()).getDataManager();
soldiers = dbManager.getActiveSoldier();
adapter = new SoldierListAdapter(getContext(), soldiers);
listView.setAdapter(adapter);
TextView nameHeader = (TextView) rootView.findViewById(R.id.name_header);
nameHeader.setOnClickListener(new ClickToSort());
TextView hrHeader = (TextView) rootView.findViewById(R.id.hr_header);
hrHeader.setOnClickListener(new ClickToSort());
TextView brHeader = (TextView) rootView.findViewById(R.id.br_header);
brHeader.setOnClickListener(new ClickToSort());
TextView skinTmpHeader = (TextView) rootView.findViewById(R.id.skin_tmp_header);
skinTmpHeader.setOnClickListener(new ClickToSort());
TextView core_tmp_header = (TextView) rootView.findViewById(R.id.core_tmp_header);
core_tmp_header.setOnClickListener(new ClickToSort());
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
//TODO When item clicked, write code here
String idsol = null;
if (((Soldier) listView.getAdapter().getItem(position)) != null) {
idsol = ((Soldier) listView.getAdapter().getItem(position)).getId();
}
android.support.v4.app.FragmentTransaction fragmentTransaction =
getFragmentManager().beginTransaction();
Bundle bundle = new Bundle();
if (idsol != null){
bundle.putString("id", idsol); // Put anything what you want
}
IndividualSoldierTab fragment2 = new IndividualSoldierTab();
fragment2.setArguments(bundle);
fragmentTransaction.add(android.R.id.content, fragment2, "login").commit();
// getFragmentManager()
// .beginTransaction()
// .replace(R.id.container, fragment2)
// .commit();
}
});
return rootView;
}
#Override
public void onPause() {
super.onPause();
homeActivity.registerFragment(this);
}
#Override
public void onResume() {
super.onResume();
homeActivity.registerFragment(this);
}
#Override
public void onDestroyView() {
homeActivity.unregisterFragment(this);
super.onDestroyView();
}
#Override
public void update(Map data) {
Boolean soldierInTheList = false;
for (Soldier s : soldiers) {
if (data.get("ID").equals(s.getId())) {
s.setPhysioData(data);
soldierInTheList = true;
}
}
if (!soldierInTheList) {
Soldier newSol = new Soldier((String) data.get("name"), (String) data.get("ID"));
newSol.setPhysioData(data);
soldiers.add(newSol);
}
adapter.notifyDataSetChanged();
}
private void addListHeader(ListView lv) {
View headerView =
LayoutInflater.from(getContext()).inflate(R.layout.list_header, lv, false);
lv.addHeaderView(headerView);
}
private class SoldierListAdapter extends ArrayAdapter<Soldier> {
private final ArrayList<Soldier> soldiers;
private String sortedBy = "";
// the soldier list is only sorted by 1 attribute at a time. don't overthink about stable sorting
public SoldierListAdapter(Context context, ArrayList<Soldier> soldiers) {
super(context, R.layout.list_item, soldiers);
this.soldiers = soldiers;
}
public String getSortedBy() {
return sortedBy;
}
/***
* When the user click the header when soldiers are already sorted, reverse the order
*/
public void reverse() {
Collections.reverse(soldiers);
}
/***
* #param x "Sort by x" Sortby is an enum
*/
public void sort(SortBy x) {
switch (x) {
case NAME:
this.sort(new OrderByName());
sortedBy = "NAME";
break;
case HR:
this.sort(new OrderByHR());
sortedBy = "HR";
break;
case BR:
this.sort(new OrderByBR());
sortedBy = "BR";
break;
case SKINTMP:
this.sort(new OrderBySkinTmp());
sortedBy = "SKINTMP";
break;
case CORETMP:
this.sort(new OrderByCoreTmp());
sortedBy = "CORETMP";
break;
default:
}
}
#NonNull
#Override
public View getView(int position, View v, ViewGroup parent) {
// Get the data item for this position
Soldier soldier = getItem(position);
// Check if an existing view is being reused, otherwise inflate the view
if (v == null) {
v = LayoutInflater.from(getContext())
.inflate(R.layout.list_item, parent, false);
}
TextView name = (TextView) v.findViewById(R.id.name);
// name.setOnClickListener(new setFragmentTransition());
name.setText(soldier.getName());
ImageView overall = (ImageView) v.findViewById(R.id.overal_status);
switch (soldier.getOverallStatus()) {
case "RED":
overall.setImageResource(R.drawable.red);
break;
case "GREEN":
overall.setImageResource(R.drawable.green);
break;
case "YELLOW":
overall.setImageResource(R.drawable.yellow);
break;
default:
break;
}
if (soldier.getBodyOrientation() != null && !soldier.getBodyOrientation().isEmpty()) {
ImageView bodyPos = (ImageView) v.findViewById(R.id.body_position);
bodyPos.setImageResource(R.drawable.body);
switch (soldier.getBodyOrientation()) {
case "UP":
break;
case "DOWN":
bodyPos.setRotation(180);
break;
case "LEFT":
bodyPos.setRotation(270);
break;
case "RIGHT":
bodyPos.setRotation(90);
break;
default:
break;
}
}
String currentHR = soldier.getHeartRate();
String lastHR = soldier.getLastHeartRate();
if (!currentHR.equals("")) {
TextView heartRate = (TextView) v.findViewById(R.id.hr_text);
ImageView arrow = (ImageView) v.findViewById(R.id.hr_img);
if (!lastHR.equals("")) {
if (Integer.parseInt(currentHR) > Integer.parseInt(lastHR)) {
arrow.setImageResource(R.drawable.up_arrow);
heartRate.setTextColor(Color.RED);
} else if (Integer.parseInt(currentHR) < Integer.parseInt(lastHR)) {
arrow.setImageResource(R.drawable.down_arrow);
heartRate.setTextColor(Color.YELLOW);
} else {
arrow.setImageResource(0);
heartRate.setTextColor(Color.BLACK);
}
}
heartRate.setText(currentHR);
}
//TODO replace image for down_arrow color not right
String currentBR = soldier.getBreathingRate();
String lastBR = soldier.getLastBreathingRate();
if (!currentBR.equals("")) {
TextView breathingRate = (TextView) v.findViewById(R.id.br_text);
ImageView arrow = (ImageView) v.findViewById(R.id.br_img);
if (!lastBR.equals("")) {
if (Integer.parseInt(currentBR) > Integer.parseInt(lastBR)) {
arrow.setImageResource(R.drawable.up_arrow);
breathingRate.setTextColor(Color.RED);
} else if (Integer.parseInt(currentBR) < Integer.parseInt(lastBR)) {
arrow.setImageResource(R.drawable.down_arrow);
breathingRate.setTextColor(Color.YELLOW);
} else {
arrow.setImageResource(0);
breathingRate.setTextColor(Color.BLACK);
}
}
breathingRate.setText(currentBR);
}
String currentCoreTmp = soldier.getCoreTmp();
String lastCoreTmp = soldier.getLastCoreTmp();
if (!currentCoreTmp.equals("")) {
TextView coreTmp = (TextView) v.findViewById(R.id.core_tmp_text);
ImageView arrow = (ImageView) v.findViewById(R.id.core_tmp_img);
if (!lastCoreTmp.equals("")) {
if (Integer.parseInt(currentCoreTmp) > Integer.parseInt(lastCoreTmp)) {
arrow.setImageResource(R.drawable.up_arrow);
coreTmp.setTextColor(Color.RED);
} else if (Integer.parseInt(currentCoreTmp) < Integer.parseInt(lastCoreTmp)) {
arrow.setImageResource(R.drawable.down_arrow);
coreTmp.setTextColor(Color.YELLOW);
} else {
arrow.setImageResource(0);
coreTmp.setTextColor(Color.BLACK);
}
}
coreTmp.setText(currentCoreTmp);
}
String currentSkinTmp = soldier.getSkinTmp();
String lastSkinTmp = soldier.getLastSkinTmp();
if (!currentSkinTmp.equals("")) {
TextView skinTmp = (TextView) v.findViewById(R.id.skin_tmp_text);
ImageView arrow = (ImageView) v.findViewById(R.id.skin_tmp_img);
if (!lastSkinTmp.equals("")) {
if (Integer.parseInt(currentSkinTmp) > Integer.parseInt(lastSkinTmp)) {
arrow.setImageResource(R.drawable.up_arrow);
skinTmp.setTextColor(Color.RED);
} else if (Integer.parseInt(currentSkinTmp) < Integer.parseInt(lastSkinTmp)) {
arrow.setImageResource(R.drawable.down_arrow);
skinTmp.setTextColor(Color.YELLOW);
} else {
arrow.setImageResource(0);
skinTmp.setTextColor(Color.BLACK);
}
}
skinTmp.setText(currentSkinTmp);
}
//TextView tvHome = (TextView) v.findViewById(R.id.tvHome);
// Populate the data into the template view using the data object
// Return the completed view to render on screen
return v;
}
}
private class ClickToSort implements View.OnClickListener {
#Override
public void onClick(View v) {
String sortBy = (String) ((TextView) v).getText();
switch (sortBy.toLowerCase()) {
case "name":
if (adapter.getSortedBy().equals("NAME")) {
adapter.reverse();
} else {
adapter.sort(SortBy.NAME);
}
break;
case "hr":
if (adapter.getSortedBy().equals("HR")) {
adapter.reverse();
} else {
adapter.sort(SortBy.HR);
}
break;
case "br":
if (adapter.getSortedBy().equals("BR")) {
adapter.reverse();
} else {
adapter.sort(SortBy.BR);
}
break;
case "skintmp":
if (adapter.getSortedBy().equals("SKINTMP")) {
adapter.reverse();
} else {
adapter.sort(SortBy.SKINTMP);
}
break;
case "coretmp":
if (adapter.getSortedBy().equals("CORETMP")) {
adapter.reverse();
} else {
adapter.sort(SortBy.CORETMP);
}
break;
default:
}
adapter.notifyDataSetChanged();
}
}
/************************************************************************
* Comparator classes to support different ordering of soldiers
*************************************************************************/
private enum SortBy {
NAME, HR, BR, SKINTMP, CORETMP
}
private static class OrderByName implements Comparator<Soldier> {
#Override
public int compare(Soldier s1, Soldier s2) {
return s1.getName().compareTo(s2.getName());
}
}
private static class OrderByHR implements Comparator<Soldier> {
#Override
public int compare(Soldier s1, Soldier s2) {
return Integer.parseInt(s1.getHeartRate().equals("") ? "0" : s1.getHeartRate())
- Integer.parseInt(s2.getHeartRate().equals("") ? "0" : s2.getHeartRate());
}
}
private static class OrderByBR implements Comparator<Soldier> {
#Override
public int compare(Soldier s1, Soldier s2) {
return Integer.valueOf(s1.getBreathingRate().equals("") ? "0" : s1.getBreathingRate())
.compareTo(Integer.valueOf(
s2.getBreathingRate().equals("") ? "0" : s2.getBreathingRate()));
}
}
private static class OrderBySkinTmp implements Comparator<Soldier> {
#Override
public int compare(Soldier s1, Soldier s2) {
return Integer.valueOf(s1.getSkinTmp().equals("") ? "0" : s1.getSkinTmp())
.compareTo(Integer.valueOf(s2.getSkinTmp().equals("") ? "0" : s2.getSkinTmp()));
}
}
private static class OrderByCoreTmp implements Comparator<Soldier> {
#Override
public int compare(Soldier s1, Soldier s2) {
return Integer.valueOf(s1.getCoreTmp().equals("") ? "0" : s1.getCoreTmp())
.compareTo(Integer.valueOf(s2.getCoreTmp().equals("") ? "0" : s2.getCoreTmp()));
}
}
}
HomeActivity.java
package com.drdc1.medic;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Build;
import android.os.Bundle;
import android.support.annotation.RequiresApi;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
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.content.LocalBroadcastManager;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
// This is the home page of the tab application.
public class HomeActivity extends AppCompatActivity implements FragmentDataManager {
private SectionsPagerAdapter mSectionsPagerAdapter;
private DataReceiver dataReceiver;
private ArrayList<DataObserver> fragmentlist;
static private HashMap data; //one data shared by all fragments
/**
* The {#link ViewPager} that will host the section contents.
*/
private ViewPager mViewPager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
startBackgroundServices();
setContentView(R.layout.activity_home);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
// Create the adapter that will return a fragment for each of the three
// primary sections of the activity.
mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());
//register intent filter for LocalBroadbast Manager
IntentFilter PDAMESSAGE = new IntentFilter("PDAMessage");
dataReceiver = new DataReceiver();
LocalBroadcastManager.getInstance(this).registerReceiver(dataReceiver, PDAMESSAGE);
data = new HashMap();
fragmentlist = new ArrayList<>();
// Set up the ViewPager with the sections adapter.
mViewPager = (ViewPager) findViewById(R.id.container);
mViewPager.setAdapter(mSectionsPagerAdapter);
mViewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
#Override
public void onPageScrolled(int position, float positionOffset,
int positionOffsetPixels) {
}
#Override
public void onPageSelected(int position) {
}
#Override
public void onPageScrollStateChanged(int state) {
}
});
TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs);
tabLayout.setupWithViewPager(mViewPager);
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
}
});
}
#Override
public void registerFragment(DataObserver o) {
if (!fragmentlist.contains(o))
fragmentlist.add(o);
}
#Override
public void unregisterFragment(DataObserver o) {
if (fragmentlist.contains(o)) {
int observerIndex = fragmentlist.indexOf(o);
fragmentlist.remove(observerIndex);
}
}
#RequiresApi(api = Build.VERSION_CODES.M)
#Override
public void notifyObserver(Map data) {
for (DataObserver observer : fragmentlist) {
observer.update(data);
}
}
class DataReceiver extends BroadcastReceiver {
#RequiresApi(api = Build.VERSION_CODES.M)
#Override
public void onReceive(Context context, Intent intent) {
data.put("bodypos", intent.getStringExtra("bodypos"));
data.put("overall", intent.getStringExtra("overall"));
data.put("coreTemp", intent.getStringExtra("coreTmp"));
data.put("skinTemp", intent.getStringExtra("skinTmp"));
data.put("br", intent.getStringExtra("br"));
data.put("hr", intent.getStringExtra("hr"));
data.put("ID",intent.getStringExtra("ID"));
data.put("name",intent.getStringExtra("name"));
notifyObserver(data);
}
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
/**
* The fragment argument representing the section number for this
* fragment.
*/
private static final String ARG_SECTION_NUMBER = "section_number";
public PlaceholderFragment() {
}
/**
* Returns a new instance of this fragment for the given section
* number.
*/
public static PlaceholderFragment newInstance(int sectionNumber) {
PlaceholderFragment fragment = new PlaceholderFragment();
Bundle args = new Bundle();
args.putInt(ARG_SECTION_NUMBER, sectionNumber);
fragment.setArguments(args);
return fragment;
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_home, container, false);
TextView textView = (TextView) rootView.findViewById(R.id.section_label);
textView.setText(
getString(R.string.section_format, getArguments().getInt(ARG_SECTION_NUMBER)));
return rootView;
}
}
public class SectionsPagerAdapter extends FragmentPagerAdapter {
public SectionsPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int position) {
switch (position) {
case 0:
SquadStatus tab1 = new SquadStatus();
return tab1;
case 1:
NameList tab2 = new NameList();
return tab2;
case 2:
IndividualSoldierTab tab3 = new IndividualSoldierTab();
return tab3;
case 3:
TreatmentScreenTab tab4 = new TreatmentScreenTab();
return tab4;
default:
return null;
}
}
#Override
public int getCount() {
// Show 4 total pages.
return 4;
}
#Override
public CharSequence getPageTitle(int position) {
switch (position) {
case 0:
return "Squad Status";
case 1:
return "Name List";
case 2:
return "Individual Soldier";
case 3:
return "Treatment Screen";
}
return null;
}
}
private void startBackgroundServices() {
Intent Serviceintent = new Intent();
Serviceintent.setClass(this, BackgroundServer.class);
startService(Serviceintent);
Intent sleepAlgo = new Intent();
sleepAlgo.setClass(this, BackgroundSleepAlgo.class);
startService(sleepAlgo);
Intent wellnessAlgo = new Intent();
wellnessAlgo.setClass(this, BackgroundWellnessAlgo.class);
startService(wellnessAlgo);
}
public void callHelp(View v) {
Intent callhelp = new Intent(HomeActivity.this, HelpActivity.class);
startActivity(callhelp);
}
}

What should the container?
You can simply use a FrameLayout as the container layout and add fragments dynamically.

Android fragments must be static

I've got this error, but I don't know how to resolve this error.
Error: Fragments should be static such that they can be re-instantiated by the system, and anonymous classes are not static [ValidFragment]
Please help me if you know how to solve
This is the MainActivity.java
import android.annotation.TargetApi;
import android.app.ProgressDialog;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.content.res.ColorStateList;
import android.content.res.Configuration;
import android.graphics.Color;
import android.os.Build;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.NavigationView;
import android.support.design.widget.Snackbar;
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.content.LocalBroadcastManager;
import android.support.v4.view.GravityCompat;
import android.support.v4.view.ViewPager;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AlertDialog;
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 android.view.View;
import android.widget.TextView;
import android.widget.Toast;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GoogleApiAvailability;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends AppCompatActivity {
private DrawerLayout mDrawerLayout;
private String keyPref = "test";
private SharedPreferences pref;
private static SharedPreferences.Editor editor;
private static ViewPager view;
private FoodListFragment makanan = new FoodListFragment() {
#Override
public void doRefresh() {
updateData();
}
};
private FoodListFragment minuman = new FoodListFragment() {
#Override
public void doRefresh() {
updateData();
}
};
private FoodListFragment snack = new FoodListFragment() {
#Override
public void doRefresh() {
updateData();
}
};
private Adapter adapter = new Adapter(getSupportFragmentManager());
private static final int PLAY_SERVICES_RESOLUTION_REQUEST = 4343;
private BroadcastReceiver mRegistrationBroadcastReceiver;
private static ProgressDialog loading;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
pref = getApplicationContext().getSharedPreferences(keyPref, MODE_PRIVATE);
editor = pref.edit();
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
final ActionBar ab = getSupportActionBar();
ab.setHomeAsUpIndicator(R.drawable.ic_menu);
ab.setDisplayHomeAsUpEnabled(true);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
if (navigationView != null) {
setupDrawerContent(navigationView);
}
ViewPager viewPager = (ViewPager) findViewById(R.id.viewpager);
if (viewPager != null) {
setupViewPager(viewPager);
}
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setBackgroundTintList(ColorStateList.valueOf(Color.rgb(183,28,28)));
fab.setOnClickListener(new View.OnClickListener() {
#TargetApi(Build.VERSION_CODES.LOLLIPOP)
#Override
public void onClick(View view) {
Intent intent = new Intent(getApplicationContext(), CartActivity.class);
MainActivity.this.startActivity(intent);
}
});
TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs);
tabLayout.setupWithViewPager(viewPager);
DBHelper db = new DBHelper(this);
mRegistrationBroadcastReceiver = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
//mRegistrationProgressBar.setVisibility(ProgressBar.GONE);
SharedPreferences sharedPreferences =
PreferenceManager.getDefaultSharedPreferences(context);
boolean sentToken = sharedPreferences
.getBoolean(QuickstartPreferences.SENT_TOKEN_TO_SERVER, false);
}
};
loading = new ProgressDialog(this);
loading.setMessage("Loading");
loading.setTitle("Menu");
updateData();
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
return true;
}
#Override
protected void onPause() {
super.onPause();
LocalBroadcastManager.getInstance(this).unregisterReceiver(mRegistrationBroadcastReceiver);
}
#Override
protected void onResume() {
super.onResume();
LocalBroadcastManager.getInstance(this).registerReceiver(mRegistrationBroadcastReceiver,
new IntentFilter(QuickstartPreferences.REGISTRATION_COMPLETE));
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
mDrawerLayout.openDrawer(GravityCompat.START);
return true;
}
return super.onOptionsItemSelected(item);
}
public void updateData() {
ServerHelper server = new ServerHelper() {
#Override
public void onStart() {
loading.show();
}
#Override
public void onFinish() {
loading.dismiss();
}
#Override
public void onSuccess(int statusCode, String response) {
try {
editor.putString("response", response);
editor.commit();
makanan.clearFood();
minuman.clearFood();
snack.clearFood();
JSONArray foods = new JSONArray(response);
for (int i = 0; i <= foods.length()-1; i++) {
JSONObject object = foods.getJSONObject(i);
JSONObject subs = object.getJSONObject("SubCategory");
FoodCategory addFood = new FoodCategory(subs.getString("name"), subs.getString("photo"));
if (subs.getString("categories_id").contains("1")) {
makanan.addFood(addFood);
} else if (subs.getString("categories_id").contains("2")) {
minuman.addFood(addFood);
} else if (subs.getString("categories_id").contains("3")) {
snack.addFood(addFood);
}
}
makanan.doneRefresh();
minuman.doneRefresh();
snack.doneRefresh();
} catch (JSONException e) {
e.printStackTrace();
Toast.makeText(view.getContext(),"Terjadi masalah koneksi, silahkan coba kembali", Toast.LENGTH_LONG).show();
}
loading.dismiss();
}
#Override
public void onFailure(int statusCode, String response) {
if (view != null) {
Snackbar.make(view, "Terjadi Masalah Koneksi", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
} else {
Toast.makeText(MainActivity.this,"Terjadi Masalah Koneksi", Toast.LENGTH_LONG).show();
}
makanan.doneRefresh();
minuman.doneRefresh();
snack.doneRefresh();
loading.dismiss();
}
};
server.getAllSubs();
}
private void setupViewPager(ViewPager viewPager) {
makanan.setRetainInstance(true);
minuman.setRetainInstance(true);
snack.setRetainInstance(true);
adapter.addFragment(makanan, "Makanan");
adapter.addFragment(minuman, "Minuman");
adapter.addFragment(snack, "Snack");
viewPager.setAdapter(adapter);
updateData();
}
#Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
}
private void setupDrawerContent(final NavigationView navigationView) {
View header = navigationView.getHeaderView(0);
TextView username = (TextView) header.findViewById(R.id.main_username);
DBHelper db = new DBHelper(this);
username.setText(db.getUsers().getName());
navigationView.setNavigationItemSelectedListener(
new NavigationView.OnNavigationItemSelectedListener() {
#Override
public boolean onNavigationItemSelected(MenuItem menuItem) {
switch (menuItem.getItemId()) {
case R.id.nav_home: {
menuItem.setChecked(true);
break;
}
case R.id.nav_order: {
navigationView.getMenu().getItem(0).setChecked(true);
Intent order = new Intent(MainActivity.this, OrderActivity.class);
startActivity(order);
break;
}
case R.id.nav_cart: {
navigationView.getMenu().getItem(0).setChecked(true);
Intent cart = new Intent(MainActivity.this, CartActivity.class);
startActivity(cart);
break;
}
case R.id.nav_logout: {
AlertDialog.Builder dialog = new AlertDialog.Builder(MainActivity.this);
dialog.setMessage("Anda yakin ingin logout akun anda ?");
dialog.setNegativeButton("Batal",
new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface arg0, int arg1) {
}
});
dialog.setPositiveButton("Keluar",
new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface arg0, int arg1) {
DBHelper logout = new DBHelper(MainActivity.this);
logout.clearSPConfig();
LocalBroadcastManager.getInstance(MainActivity.this).unregisterReceiver(mRegistrationBroadcastReceiver);
Intent goLogin = new Intent(MainActivity.this, LoginMainActivity.class);
startActivity(goLogin);
}
});
AlertDialog alertDialog = dialog.create();
alertDialog.show();
}
}
mDrawerLayout.closeDrawers();
return true;
}
});
}
public static class Adapter extends FragmentPagerAdapter {
private final List<Fragment> mFragments = new ArrayList<>();
private final List<String> mFragmentTitles = new ArrayList<>();
public Adapter(FragmentManager fm) {
super(fm);
}
public void addFragment(Fragment fragment, String title) {
mFragments.add(fragment);
mFragmentTitles.add(title);
}
#Override
public Fragment getItem(int position) {
return mFragments.get(position);
}
#Override
public int getCount() {
return mFragments.size();
}
#Override
public CharSequence getPageTitle(int position) {
return mFragmentTitles.get(position);
}
}
}
and this is the fragment class FoodListFragment.java
import android.graphics.Color;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.annotation.UiThread;
import android.support.design.widget.Snackbar;
import android.support.v4.app.Fragment;
import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.InflateException;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.ArrayList;
public abstract class FoodListFragment extends Fragment {
private ArrayList<FoodCategory> foodList = new ArrayList<FoodCategory>();
private RecyclerView rv;
private RecyclerViewAdapter adapter;
private SwipeRefreshLayout swipeLayout;
private View view;
FoodListFragment() {
}
public void addFoods(ArrayList<FoodCategory> food) {
foodList = food;
if (adapter != null) {
adapter.notifyDataSetChanged();
}
}
public void addFood(FoodCategory food) {
foodList.add(food);
if (adapter != null) {
adapter.notifyDataSetChanged();
}
}
public void clearFood() {
foodList.clear();
}
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
// final RecyclerView rv = (RecyclerView) inflater.inflate(R.layout.fragment_food_list, container, false);
view = inflater.inflate(R.layout.fragment_food_list, null);
swipeLayout = (SwipeRefreshLayout) view.findViewById(R.id.swipe_container);
swipeLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
#Override
public void onRefresh() {
doRefresh();
}
});
swipeLayout.setColorSchemeColors(Color.RED, Color.GRAY);
RecyclerView rv = (RecyclerView) view.findViewById(R.id.recyclerview);
setupRecyclerView(rv);
return view;
}
private void setupRecyclerView(final RecyclerView recyclerView) {
//recyclerView.setLayoutManager(new LinearLayoutManager(recyclerView.getContext()));
recyclerView.setLayoutManager(new GridLayoutManager(recyclerView.getContext(), 2));
recyclerView.setHasFixedSize(true);
setRetainInstance(true);
adapter = new RecyclerViewAdapter(getActivity(),foodList);
recyclerView.setAdapter(adapter);
}
public void doneRefresh(){
if (swipeLayout != null) {
swipeLayout.setRefreshing(false);
}
}
public abstract void doRefresh();
}

You are declaring your Fragment as abstract class. Abstract class can't be instantiated. It can be used only as a base class. The way you are trying to use it (anonymous class) is not possible in Android framework. A Fragment class must be a subclass of Fragment (or an existing subclass of it) and concrete.
Remove abstract keyword
public class FoodListFragment extends Fragment {
Things your are trying to achieve with
public abstract void doRefresh();
should be done using an interface.

Navigation drawer fragment class not showing up

My navigation drawer only show the first fragment class and 1 other class.I have 8 fragment class for menu in my drawer. When I click the other fragment class, it will be blank.
Here is the NavigationDrawerFragment.java :
import android.app.Activity;
import android.app.Fragment;
import android.content.SharedPreferences;
import android.content.res.Configuration;
import android.graphics.Bitmap;
import android.graphics.BitmapShader;
import android.graphics.Canvas;
import android.graphics.ColorFilter;
import android.graphics.Paint;
import android.graphics.PixelFormat;
import android.graphics.Rect;
import android.graphics.RectF;
import android.graphics.Shader;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.Toolbar;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import java.util.ArrayList;
import java.util.List;
/**
* Fragment used for managing interactions for and presentation of a navigation drawer.
* See the <a href="https://developer.android.com/design/patterns/navigation-drawer.html#Interaction">
* design guidelines</a> for a complete explanation of the behaviors implemented here.
*/
public class NavigationDrawerFragment extends Fragment implements NavigationDrawerCallbacks {
/**
* Remember the position of the selected item.
*/
private static final String STATE_SELECTED_POSITION = "selected_navigation_drawer_position";
/**
* Per the design guidelines, you should show the drawer on launch until the user manually
* expands it. This shared preference tracks this.
*/
private static final String PREF_USER_LEARNED_DRAWER = "navigation_drawer_learned";
/**
* A pointer to the current callbacks instance (the Activity).
*/
private NavigationDrawerCallbacks mCallbacks;
/**
* Helper component that ties the action bar to the navigation drawer.
*/
private ActionBarDrawerToggle mActionBarDrawerToggle;
private DrawerLayout mDrawerLayout;
public RecyclerView mDrawerList;
private View mFragmentContainerView;
private int mCurrentSelectedPosition = 0;
private boolean mFromSavedInstanceState;
private boolean mUserLearnedDrawer;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Read in the flag indicating whether or not the user has demonstrated awareness of the
// drawer. See PREF_USER_LEARNED_DRAWER for details.
SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(getActivity());
mUserLearnedDrawer = sp.getBoolean(PREF_USER_LEARNED_DRAWER, false);
if (savedInstanceState != null) {
mCurrentSelectedPosition = savedInstanceState.getInt(STATE_SELECTED_POSITION);
mFromSavedInstanceState = true;
}
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_navigation_drawer, container, false);
mDrawerList = (RecyclerView) view.findViewById(R.id.drawerList);
LinearLayoutManager layoutManager = new LinearLayoutManager(getActivity());
layoutManager.setOrientation(LinearLayoutManager.VERTICAL);
mDrawerList.setLayoutManager(layoutManager);
mDrawerList.setHasFixedSize(true);
final List<NavigationItem> navigationItems = getMenu();
NavigationDrawerAdapter adapter = new NavigationDrawerAdapter(navigationItems);
adapter.setNavigationDrawerCallbacks(this);
mDrawerList.setAdapter(adapter);
selectItem(mCurrentSelectedPosition);
return view;
}
public boolean isDrawerOpen() {
return mDrawerLayout != null && mDrawerLayout.isDrawerOpen(mFragmentContainerView);
}
public ActionBarDrawerToggle getActionBarDrawerToggle() {
return mActionBarDrawerToggle;
}
public DrawerLayout getDrawerLayout() {
return mDrawerLayout;
}
#Override
public void onNavigationDrawerItemSelected(int position) {
selectItem(position);
}
public List<NavigationItem> getMenu() {
List<NavigationItem> items = new ArrayList<NavigationItem>();
items.add(new NavigationItem(getString(R.string.Home), getResources().getDrawable(R.drawable.ico_home)));
items.add(new NavigationItem(getString(R.string.Map), getResources().getDrawable(R.drawable.ico_map)));
items.add(new NavigationItem(getString(R.string.Departments), getResources().getDrawable(R.drawable.ico_dpt)));
items.add(new NavigationItem(getString(R.string.Units), getResources().getDrawable(R.drawable.ico_unit)));
items.add(new NavigationItem(getString(R.string.Gallery), getResources().getDrawable(R.drawable.ico_gallery)));
items.add(new NavigationItem(getString(R.string.AboutPSIS), getResources().getDrawable(R.drawable.ico_about)));
items.add(new NavigationItem(getString(R.string.Help), getResources().getDrawable(R.drawable.ico_help)));
items.add(new NavigationItem(getString(R.string.Credits), getResources().getDrawable(R.drawable.ico_credit)));
return items;
}
/**
* Users of this fragment must call this method to set up the navigation drawer interactions.
*
* #param fragmentId The android:id of this fragment in its activity's layout.
* #param drawerLayout The DrawerLayout containing this fragment's UI.
* #param toolbar The Toolbar of the activity.
*/
public void setup(int fragmentId, DrawerLayout drawerLayout, Toolbar toolbar) {
mFragmentContainerView = (View) getActivity().findViewById(fragmentId).getParent();
mDrawerLayout = drawerLayout;
mDrawerLayout.setStatusBarBackgroundColor(getResources().getColor(R.color.myPrimaryDarkColor));
mActionBarDrawerToggle = new ActionBarDrawerToggle(getActivity(), mDrawerLayout, toolbar, R.string.drawer_open, R.string.drawer_close) {
#Override
public void onDrawerClosed(View drawerView) {
super.onDrawerClosed(drawerView);
if (!isAdded()) return;
getActivity().invalidateOptionsMenu(); // calls onPrepareOptionsMenu()
}
#Override
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
if (!isAdded()) return;
if (!mUserLearnedDrawer) {
mUserLearnedDrawer = true;
SharedPreferences sp = PreferenceManager
.getDefaultSharedPreferences(getActivity());
sp.edit().putBoolean(PREF_USER_LEARNED_DRAWER, true).apply();
}
getActivity().invalidateOptionsMenu(); // calls onPrepareOptionsMenu()
}
};
// If the user hasn't 'learned' about the drawer, open it to introduce them to the drawer,
// per the navigation drawer design guidelines.
if (!mUserLearnedDrawer && !mFromSavedInstanceState) {
mDrawerLayout.openDrawer(mFragmentContainerView);
}
// Defer code dependent on restoration of previous instance state.
mDrawerLayout.post(new Runnable() {
#Override
public void run() {
mActionBarDrawerToggle.syncState();
}
});
mDrawerLayout.setDrawerListener(mActionBarDrawerToggle);
}
private void selectItem(int position) {
mCurrentSelectedPosition = position;
if (mDrawerLayout != null) {
mDrawerLayout.closeDrawer(mFragmentContainerView);
}
if (mCallbacks != null) {
mCallbacks.onNavigationDrawerItemSelected(position);
}
((NavigationDrawerAdapter) mDrawerList.getAdapter()).selectPosition(position);
}
public void openDrawer() {
mDrawerLayout.openDrawer(mFragmentContainerView);
}
public void closeDrawer() {
mDrawerLayout.closeDrawer(mFragmentContainerView);
}
#Override
public void onAttach(Activity activity) {
super.onAttach(activity);
try {
mCallbacks = (NavigationDrawerCallbacks) activity;
} catch (ClassCastException e) {
throw new ClassCastException("Activity must implement NavigationDrawerCallbacks.");
}
}
#Override
public void onDetach() {
super.onDetach();
mCallbacks = null;
}
#Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putInt(STATE_SELECTED_POSITION, mCurrentSelectedPosition);
}
#Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
// Forward the new configuration the drawer toggle component.
mActionBarDrawerToggle.onConfigurationChanged(newConfig);
}
/*
public void setUserData(String user, String email, Bitmap avatar) {
ImageView avatarContainer = (ImageView) mFragmentContainerView.findViewById(R.id.imgAvatar);
((TextView) mFragmentContainerView.findViewById(R.id.txtUserEmail)).setText(email);
((TextView) mFragmentContainerView.findViewById(R.id.txtUsername)).setText(user);
avatarContainer.setImageDrawable(new RoundImage(avatar));
}
*/
public View getGoogleDrawer() {
return mFragmentContainerView.findViewById(R.id.googleDrawer);
}
public static class RoundImage extends Drawable {
private final Bitmap mBitmap;
private final Paint mPaint;
private final RectF mRectF;
private final int mBitmapWidth;
private final int mBitmapHeight;
public RoundImage(Bitmap bitmap) {
mBitmap = bitmap;
mRectF = new RectF();
mPaint = new Paint();
mPaint.setAntiAlias(true);
mPaint.setDither(true);
final BitmapShader shader = new BitmapShader(bitmap, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);
mPaint.setShader(shader);
mBitmapWidth = mBitmap.getWidth();
mBitmapHeight = mBitmap.getHeight();
}
#Override
public void draw(Canvas canvas) {
canvas.drawOval(mRectF, mPaint);
}
#Override
protected void onBoundsChange(Rect bounds) {
super.onBoundsChange(bounds);
mRectF.set(bounds);
}
#Override
public void setAlpha(int alpha) {
if (mPaint.getAlpha() != alpha) {
mPaint.setAlpha(alpha);
invalidateSelf();
}
}
#Override
public void setColorFilter(ColorFilter cf) {
mPaint.setColorFilter(cf);
}
#Override
public int getOpacity() {
return PixelFormat.TRANSLUCENT;
}
#Override
public int getIntrinsicWidth() {
return mBitmapWidth;
}
#Override
public int getIntrinsicHeight() {
return mBitmapHeight;
}
public void setAntiAlias(boolean aa) {
mPaint.setAntiAlias(aa);
invalidateSelf();
}
#Override
public void setFilterBitmap(boolean filter) {
mPaint.setFilterBitmap(filter);
invalidateSelf();
}
#Override
public void setDither(boolean dither) {
mPaint.setDither(dither);
invalidateSelf();
}
public Bitmap getBitmap() {
return mBitmap;
}
}
}
this class handle the drawer click :
package com.example.tropo;
import android.app.Fragment;
import android.os.Bundle;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
public class MainActivity extends ActionBarActivity
implements NavigationDrawerCallbacks {
/**
* Fragment managing the behaviors, interactions and presentation of the navigation drawer.
*/
private NavigationDrawerFragment mNavigationDrawerFragment;
private Toolbar mToolbar;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mToolbar = (Toolbar) findViewById(R.id.toolbar_actionbar);
setSupportActionBar(mToolbar);
mNavigationDrawerFragment = (NavigationDrawerFragment)
getFragmentManager().findFragmentById(R.id.fragment_drawer);
// Set up the drawer.
mNavigationDrawerFragment.setup(R.id.fragment_drawer, (DrawerLayout) findViewById(R.id.drawer), mToolbar);
}
#Override
public void onNavigationDrawerItemSelected(int position) {
Fragment fragment;
switch (position) {
case 0: //Home
fragment = getFragmentManager().findFragmentByTag(D_Home.TAG);
if (fragment == null) {
fragment = new D_Home();
}
getFragmentManager().beginTransaction().replace(R.id.container, fragment, D_Home.TAG).commit();
break;
case 1: //Map
fragment = getFragmentManager().findFragmentByTag(D_Map.TAG);
if (fragment == null) {
fragment = new D_Map();
}
getFragmentManager().beginTransaction().replace(R.id.container, fragment, D_Map.TAG).commit();
break;
case 2: //Departments
fragment = getFragmentManager().findFragmentByTag(D_Departments.TAG);
if (fragment == null) {
fragment = new D_Departments();
}
getFragmentManager().beginTransaction().replace(R.id.container, fragment, D_Departments.TAG).commit();
break;
case 3: //Units
fragment = getFragmentManager().findFragmentByTag(D_Units.TAG);
if (fragment == null) {
fragment = new D_Units();
}
getFragmentManager().beginTransaction().replace(R.id.container, fragment, D_Units.TAG).commit();
break;
case 4: //Gallery
fragment = getFragmentManager().findFragmentByTag(D_Gallery.TAG);
if (fragment == null) {
fragment = new D_Gallery();
}
getFragmentManager().beginTransaction().replace(R.id.container, fragment, D_Gallery.TAG).commit();
break;
case 5: //About PSIS
fragment = getFragmentManager().findFragmentByTag(D_About.TAG);
if (fragment == null) {
fragment = new D_About();
}
getFragmentManager().beginTransaction().replace(R.id.container, fragment, D_About.TAG).commit();
break;
case 6: //Help
fragment = getFragmentManager().findFragmentByTag(D_Help.TAG);
if (fragment == null) {
fragment = new D_Help();
}
getFragmentManager().beginTransaction().replace(R.id.container, fragment, D_Help.TAG).commit();
break;
case 7: //Credit
fragment = getFragmentManager().findFragmentByTag(D_Credit.TAG);
if (fragment == null) {
fragment = new D_Credit();
}
getFragmentManager().beginTransaction().replace(R.id.container, fragment, D_Credit.TAG).commit();
break;
}
}
#Override
public void onBackPressed() {
if (mNavigationDrawerFragment.isDrawerOpen())
mNavigationDrawerFragment.closeDrawer();
else
super.onBackPressed();
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
if (!mNavigationDrawerFragment.isDrawerOpen()) {
// Only show items in the action bar relevant to this screen
// if the drawer is not showing. Otherwise, let the drawer
// decide what to show in the action bar.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
return super.onCreateOptionsMenu(menu);
}
#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();
return super.onOptionsItemSelected(item);
}
public void onActivityCreated(Bundle savedInstanceState) {
}
}

Method OnItemClickListener from JSONParser override OnItemLongClickListener from another activity

I'm trying to create the favorites list from Json Objects which I received by URL.
When I got Json array, I defined methods OnItemLongClickListener and OnItemClickListener that get different things:
The OnItemClickListener method has to open another activity with description of product
The OnItemLongClickListener method has to add product to favorite list
The Problem that method OnItemClickListener which I defined in MainActivity is override method OnItemLongClickListener which I defined in FragmentActivty and the method OnItemLongClickListener doesn't work at all then I tried to define both methods in FragmentActivity but after that both methods don't work at all.
Is there any way to determine this problem?
Main Activity:
package com.boom.kayakapp.activities;
import android.app.ProgressDialog;
import android.content.Intent;
import android.graphics.Color;
import android.graphics.drawable.ColorDrawable;
import android.os.Bundle;
import android.os.StrictMode;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.support.v7.app.ActionBarActivity;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.VolleyLog;
import com.android.volley.toolbox.JsonArrayRequest;
import com.boom.kayakapp.R;
import com.boom.kayakapp.adapters.AirlinesAdapter;
import com.boom.kayakapp.controllers.AppController;
import com.boom.kayakapp.fragment.AirlinesFragment;
import com.boom.kayakapp.fragment.FavoriteFragment;
import com.boom.kayakapp.model.Airlines;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends ActionBarActivity {
private Fragment contentFragment;
AirlinesFragment airlinesFragment;
FavoriteFragment favoriteFragment;
// JSON Node names
public static final String TAG_NAME = "name";
public static final String TAG_PHONE = "phone";
public static final String TAG_SITE = "site";
public static final String TAG_LOGO = "logoURL";
public static final String TAG_CODE = "code";
// Log tag
private static final String TAG = MainActivity.class.getSimpleName();
// Airlines json url
private static final String url = "https://www.kayak.com/h/mobileapis/directory/airlines";
public ProgressDialog pDialog;
public List<Airlines> airlinesList = new ArrayList<Airlines>();
public ListView listView;
public AirlinesAdapter adapter;
#Override
protected void onCreate (Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_list);
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
listView = (ListView) findViewById(R.id.list);
adapter = new AirlinesAdapter(this, airlinesList);
listView.setAdapter(adapter);
pDialog = new ProgressDialog(this);
// Showing progress dialog before making http request
pDialog.setMessage("Loading...");
pDialog.show();
// Listview on item click listener
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// getting values from selected ListItem
String name = ((TextView) view.findViewById(R.id.name))
.getText().toString();
String phone = ((TextView) view.findViewById(R.id.phone))
.getText().toString();
String site = ((TextView) view.findViewById(R.id.site))
.getText().toString();
String logoURL = String.valueOf(((ImageView) view.findViewById(R.id.logoURL)));
// Starting single contact activity
Intent in = new Intent(getApplicationContext(),
SingleContactActivity.class);
in.putExtra(TAG_NAME, name);
in.putExtra(TAG_PHONE, phone);
in.putExtra(TAG_SITE, site);
in.putExtra(TAG_LOGO, logoURL);
startActivity(in);
}
});
// changing action bar color
getSupportActionBar().setBackgroundDrawable(
new ColorDrawable(Color.parseColor("#1b1b1b")));
// Creating volley request obj
JsonArrayRequest airlinesReq = new JsonArrayRequest(url,
new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
Log.d(TAG, response.toString());
hidePDialog();
// Parsing json
for (int i = 0; i < response.length(); i++) {
try {
JSONObject obj = response.getJSONObject(i);
Airlines airlines = new Airlines();
airlines.setName(obj.getString("name"));
airlines.setLogoURL(obj.getString("logoURL"));
airlines.setPhone(obj.getString("phone"));
airlines.setCode(obj.getInt("code"));
airlines.setSite(obj.getString("site"));
// adding airlines to movies array
airlinesList.add(airlines);
} catch (JSONException e) {
e.printStackTrace();
}
}
// notifying list adapter about data changes
// so that it renders the list view with updated data
adapter.notifyDataSetChanged();
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
VolleyLog.d(TAG, "Error: " + error.getMessage());
hidePDialog();
}
});
// Adding request to request queue
AppController.getInstance().addToRequestQueue(airlinesReq);
FragmentManager fragmentManager = getSupportFragmentManager();
/*
* This is called when orientation is changed.
*/
if (savedInstanceState != null) {
if (savedInstanceState.containsKey("content")) {
String content = savedInstanceState.getString("content");
if (content.equals(FavoriteFragment.ARG_ITEM_ID)) {
if (fragmentManager.findFragmentByTag(FavoriteFragment.ARG_ITEM_ID) != null) {
setFragmentTitle(R.string.favorites);
contentFragment = fragmentManager
.findFragmentByTag(FavoriteFragment.ARG_ITEM_ID);
}
}
}
if (fragmentManager.findFragmentByTag(AirlinesFragment.ARG_ITEM_ID) != null) {
airlinesFragment = (AirlinesFragment) fragmentManager
.findFragmentByTag(AirlinesFragment.ARG_ITEM_ID);
contentFragment = airlinesFragment;
}
} else {
airlinesFragment = new AirlinesFragment();
// setFragmentTitle(R.string.app_name);
switchContent(airlinesFragment, AirlinesFragment.ARG_ITEM_ID);
}
}
#Override
public void onDestroy () {
super.onDestroy();
hidePDialog();
}
private void hidePDialog() {
if (pDialog != null) {
pDialog.dismiss();
pDialog = null;
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
#Override
protected void onSaveInstanceState(Bundle outState) {
if (contentFragment instanceof FavoriteFragment) {
outState.putString("content", FavoriteFragment.ARG_ITEM_ID);
} else {
outState.putString("content", AirlinesFragment.ARG_ITEM_ID);
}
super.onSaveInstanceState(outState);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.menu_favorites:
setFragmentTitle(R.string.favorites);
favoriteFragment = new FavoriteFragment();
switchContent(favoriteFragment, FavoriteFragment.ARG_ITEM_ID);
return true;
}
return super.onOptionsItemSelected(item);
}
public void switchContent(Fragment fragment, String tag) {
FragmentManager fragmentManager = getSupportFragmentManager();
while (fragmentManager.popBackStackImmediate()) ;
if (fragment != null) {
FragmentTransaction transaction = fragmentManager
.beginTransaction();
transaction.replace(R.id.content_frame, fragment, tag);
//Only FavoriteFragment is added to the back stack.
if (!(fragment instanceof AirlinesFragment)) {
transaction.addToBackStack(tag);
}
transaction.commit();
contentFragment = fragment;
}
}
protected void setFragmentTitle(int resourseId) {
setTitle(resourseId);
getSupportActionBar().setTitle(resourseId);
}
/*
* We call super.onBackPressed(); when the stack entry count is > 0. if it
* is instanceof ProductListFragment or if the stack entry count is == 0, then
* we finish the activity.
* In other words, from ProductListFragment on back press it quits the app.
*/
#Override
public void onBackPressed() {
FragmentManager fm = getSupportFragmentManager();
if (fm.getBackStackEntryCount() > 0) {
super.onBackPressed();
} else if (contentFragment instanceof AirlinesFragment
|| fm.getBackStackEntryCount() == 0) {
finish();
}
}
}
FragmentActivity:
package com.boom.kayakapp.fragment;
import android.app.Activity;
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.AdapterView.OnItemClickListener;
import android.widget.AdapterView.OnItemLongClickListener;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.Toast;
import com.boom.kayakapp.R;
import com.boom.kayakapp.adapters.AirlinesAdapter;
import com.boom.kayakapp.model.Airlines;
import com.boom.kayakapp.util.SharedPreference;
import java.util.ArrayList;
import java.util.List;
public class AirlinesFragment extends Fragment implements OnItemClickListener, OnItemLongClickListener{
public static final String ARG_ITEM_ID = "airlines_list";
Activity activity;
ListView airlinesListView;
List<Airlines> airlines;
AirlinesAdapter airlinesAdapter;
public AirlinesFragment() {
airlines = new ArrayList<>();
}
SharedPreference sharedPreference;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
activity = getActivity();
sharedPreference = new SharedPreference();
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.activity_list, container,
false);
findViewsById(view);
airlinesAdapter = new AirlinesAdapter(activity, airlines);
airlinesListView.setAdapter(airlinesAdapter);
airlinesListView.setOnItemClickListener(this);
airlinesListView.setOnItemLongClickListener(this);
return view;
}
private void findViewsById(View view) {
airlinesListView = (ListView) view.findViewById(R.id.list);
}
#Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
Airlines airlines = (Airlines) parent.getItemAtPosition(position);
Toast.makeText(activity, airlines.toString(), Toast.LENGTH_LONG).show();
}
#Override
public boolean onItemLongClick(AdapterView<?> arg0, View view,
int position, long arg3) {
ImageView button = (ImageView) view.findViewById(R.id.favorite_button);
String tag = button.getTag().toString();
if (tag.equalsIgnoreCase("grey")) {
sharedPreference.addFavorite(activity, airlines.get(position));
Toast.makeText(activity,
activity.getResources().getString(R.string.add_favr),
Toast.LENGTH_SHORT).show();
button.setTag("red");
button.setImageResource(R.drawable.heart_red);
} else {
sharedPreference.removeFavorite(activity, airlines.get(position));
button.setTag("grey");
button.setImageResource(R.drawable.heart_grey);
Toast.makeText(activity,
activity.getResources().getString(R.string.remove_favr),
Toast.LENGTH_SHORT).show();
}
return true;
}
#Override
public void onResume() {
getActivity().setTitle(R.string.app_name);
super.onResume();
}
}

In my way I deleted definition both Methods from FavoriteFragment and defined it in MainActivity:
Json Array
listView = (ListView) findViewById(R.id.list);
adapterAirlines = new AirlinesAdapter(this, airlinesList);
listView.setAdapter(adapterAirlines);
pDialog = new ProgressDialog(this);
// Showing progress dialog before making http request
pDialog.setMessage("Loading...");
pDialog.show();
// Listview OnItemClickListener
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// getting values from selected ListItem
String name = ((TextView) view.findViewById(R.id.name))
.getText().toString();
String phone = ((TextView) view.findViewById(R.id.phone))
.getText().toString();
String site = ((TextView) view.findViewById(R.id.site))
.getText().toString();
String logoURL = String.valueOf(((ImageView) view.findViewById(R.id.logoURL)));
// Starting single contact activity
Intent in = new Intent(getApplicationContext(),
SingleContactActivity.class);
in.putExtra(TAG_NAME, name);
in.putExtra(TAG_PHONE, phone);
in.putExtra(TAG_SITE, site);
in.putExtra(TAG_LOGO, logoURL);
startActivity(in);
}
});
listView.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
#Override
public boolean onItemLongClick(AdapterView<?> parent, View view,
int position, long id) {
ImageView button = (ImageView) view.findViewById(R.id.favorite_button);
String tag = button.getTag().toString();
if (tag.equalsIgnoreCase("grey")) {
sharedPreference.addFavorite(MainActivity.this, airlinesList.get(position));
Toast.makeText(MainActivity.this,
MainActivity.this.getResources().getString(R.string.add_favr),
Toast.LENGTH_SHORT).show();
button.setTag("red");
button.setImageResource(R.drawable.heart_red);
} else {
sharedPreference.removeFavorite(MainActivity.this, airlinesList.get(position));
button.setTag("grey");
button.setImageResource(R.drawable.heart_grey);
Toast.makeText(MainActivity.this,
MainActivity.this.getResources().getString(R.string.remove_favr),
Toast.LENGTH_SHORT).show();
}
return true;
}
});
now it works

The method onOptionsItemSelected(MenuItem) is undefined for the type FragmentPagerAdapter

The application was working just great and all of a sudden it gave me this error stating the onOptionsItemSelected(MenuItem) method is undefined. I couldn't understand what they exactly mean and what solution I should refer to.
This is the code:
package com.noura.luba;
import java.util.List;
import java.util.Stack;
import android.app.ActionBar;
import android.app.ActionBar.Tab;
import android.app.ActionBar.TabListener;
import android.app.Dialog;
import android.content.Intent;
import android.content.pm.ResolveInfo;
import android.net.Uri;
import android.os.Bundle;
import android.os.Parcelable;
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.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
public class Degree_Programs extends FragmentActivity implements TabListener{
AppSectionsPagerAdapter mAppSectionsPagerAdapter;
ViewPager mViewPager;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.degree_programs);
mAppSectionsPagerAdapter = new AppSectionsPagerAdapter(getSupportFragmentManager());
final ActionBar actionBar = getActionBar();
actionBar.setHomeButtonEnabled(false);
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
mViewPager = (ViewPager) findViewById(R.id.pager);
mViewPager.setAdapter(mAppSectionsPagerAdapter);
mViewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
#Override
public void onPageSelected(int position) {
actionBar.setSelectedNavigationItem(position);
}
});
for (int i = 0; i < mAppSectionsPagerAdapter.getCount(); i++) {
if (i==0){
actionBar.addTab(
actionBar.newTab()
.setText("Study Cycle")
.setTabListener(this));
}
if (i==1){
actionBar.addTab(
actionBar.newTab()
.setText("LMD")
.setTabListener(this));
}
if (i==2){
actionBar.addTab(
actionBar.newTab()
.setText("Business Administration")
.setTabListener(this));
}
if (i==3){
actionBar.addTab(
actionBar.newTab()
.setText("Economics")
.setTabListener(this));
}
}
}
public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
}
public void onTabSelected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
mViewPager.setCurrentItem(tab.getPosition());
}
public void onTabReselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
}
public class AppSectionsPagerAdapter extends FragmentPagerAdapter {
public AppSectionsPagerAdapter(FragmentManager fm) {
super(fm);
}
public Fragment getItem(int i) {
switch (i) {
case 0:
return new LaunchpadSectionFragment();
default:
Fragment fragment = new DummySectionFragment();
Bundle args = new Bundle();
args.putInt(DummySectionFragment.ARG_SECTION_NUMBER, i + 1);
fragment.setArguments(args);
return fragment;
}
}
public int getCount() {
return 4;
}
public String getPageTitle(int position) {
return "";
}
public class LaunchpadSectionFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_section_launchpad, container, false);
rootView.findViewById(R.id.demo_collection_button)
.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent intent = new Intent(getActivity(), CollectionDemoActivity.class);
startActivity(intent);
}
});
rootView.findViewById(R.id.demo_external_activity)
.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent externalActivityIntent = new Intent(Intent.ACTION_PICK);
externalActivityIntent.setType("image/*");
externalActivityIntent.addFlags(
Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
startActivity(externalActivityIntent);
}
});
return rootView;
}
}
public class DummySectionFragment extends Fragment {
public static final String ARG_SECTION_NUMBER = "section_number";
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_section_dummy, container, false);
Bundle args = getArguments();
TextView dst = (TextView) rootView.findViewById(android.R.id.text1);
dst.setText(getString(R.string.dummy_section_text, args.getInt(ARG_SECTION_NUMBER)));
return rootView;
}
}
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.information:
final Dialog dialog =new Dialog(Degree_Programs.this);
dialog.setContentView(R.layout.information);
return true;
case R.id.logOut:
Intent intent = new Intent(getApplicationContext(),
MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP
| Intent.FLAG_ACTIVITY_SINGLE_TOP);
startActivity(intent);
return true;
case R.id.email:
Intent i = new Intent(Intent.ACTION_SEND);
i.setType("*/*");
i.putExtra(Intent.EXTRA_SUBJECT, "Crash report");
i.putExtra(Intent.EXTRA_TEXT, "Some crash report details");
startActivity(createEmailOnlyChooserIntent(i, "Send via email"));
return true;
default:
return super.onOptionsItemSelected(item);
}
}
public Intent createEmailOnlyChooserIntent(Intent source,
CharSequence chooserTitle) {
Stack<Intent> intents = new Stack<Intent>();
Intent i = new Intent(Intent.ACTION_SENDTO, Uri.fromParts("mailto",
"***#gmail.com", null));
List<ResolveInfo> activities = getPackageManager()
.queryIntentActivities(i, 0);
for (ResolveInfo ri : activities) {
Intent target = new Intent(source);
target.setPackage(ri.activityInfo.packageName);
intents.add(target);
}
if (!intents.isEmpty()) {
Intent chooserIntent = Intent.createChooser(intents.remove(0),
chooserTitle);
chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS,
intents.toArray(new Parcelable[intents.size()]));
return chooserIntent;
} else {
return Intent.createChooser(source, chooserTitle);
}
}
}
#Override
public void onTabReselected(Tab arg0, android.app.FragmentTransaction arg1) {
// TODO Auto-generated method stub
}
#Override
public void onTabSelected(Tab arg0, android.app.FragmentTransaction arg1) {
// TODO Auto-generated method stub
}
#Override
public void onTabUnselected(Tab arg0, android.app.FragmentTransaction arg1) {
// TODO Auto-generated method stub
}}

There should be an #Override annotation over the onOptionsItemSelected(MenuItem) method:
#Override
public boolean onOptionsItemSelected(MenuItem item) {

Develop Reference

Java is a programming language and computing platform first released by Sun Microsystems in 1995.

Use getVIew() to find fragment container Id in non static method - java

You need to call method getView() from instance of you class GeneralPreferenceFragment. I.e: GeneralPreferenceFragment prefFragment = new GeneralPreferenceFragment(); // ... some business logic public int id = prefFragment.getView().getParent().getId();

Related

What should the container be when FragmentPagerAdapter is used

Android fragments must be static

Navigation drawer fragment class not showing up

Method OnItemClickListener from JSONParser override OnItemLongClickListener from another activity

The method onOptionsItemSelected(MenuItem) is undefined for the type FragmentPagerAdapter

Categories

Resources