Develop Reference

How to display only one fragment tab in Android

I have different fragments in my MainActivity. In each fragment I implemented some features.
Now I am trying to implemented tabs for one fragments, what I'm looking for is about hide tab layout in remaining fragments.
activity.xml:
<androidx.coordinatorlayout.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context="com.genworks.oppm.MainActivity">
<com.google.android.material.appbar.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<RelativeLayout
android:id="#+id/activity_search_view_check"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<include layout="#layout/toolbar"/>
<include layout="#layout/search_toolbar"
android:visibility="gone"/>
</RelativeLayout>
<com.google.android.material.tabs.TabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:tabMode="scrollable"
app:tabIndicatorColor="#color/White"
app:tabTextColor="#color/White"
android:background="#drawable/button_background"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
app:tabGravity="fill"/>
</com.google.android.material.appbar.AppBarLayout>
<androidx.viewpager.widget.ViewPager
android:id="#+id/viewpager"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
MainActivity.java:
public class MainActivity extends AppCompatActivity {
private DrawerLayout drawerLayout;
Fragment fragment;
int CAMERA_PIC_REQUEST=20;
Menu search_menu;
MenuItem item_search;
ExpandableListView expListView;
TabLayout tabLayout;
private ProgressDialog progressDialog = null;
TextView user,firstname,lastname,mobile,role,report_to;
String user_name;
ImageView profile;
private ArrayList<Records> records;
private ArrayList<Records> recordsList=new ArrayList<>();
ViewPager viewPager;
TextView mTitle;
private RecyclerView recyclerView;
static final int REQUEST_TAKE_PHOTO = 1;
static final int REQUEST_GALLERY_PHOTO = 2;
File mPhotoFile;
FileCompressor mCompressor;
private RecyclerView.Adapter mAdapter;
String sessionId,username,first_name,last_name,mobile_no,role_id,reportto;
MenuItem refreshMenuItem;
ExpandableListView expandableList;
ExpandableListAdapterMenu mMenuAdapter;
List <ExpandedMenuModel> listDataHeader;
private final Handler handler = new Handler ( );
HashMap <ExpandedMenuModel, List <String>> listDataChild;
private RecyclerView.LayoutManager layoutManager;
private boolean ismenutoggle;
private Toolbar searchtollbar,toolbar;
boolean needLogin = false;
LinearLayout dashboard,taskmenu,account,contact,opportunity,logout,documents;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
sessionId = getIntent().getStringExtra("sessionId");
username = getIntent().getStringExtra("username");
PreferenceUtils.getUsername(this);
PreferenceUtils.getPassword(this);
first_name = getIntent().getStringExtra("firstname");
last_name = getIntent().getStringExtra("lastname");
mobile_no = getIntent().getStringExtra("mobile");
role_id = getIntent().getStringExtra("role");
reportto = getIntent().getStringExtra("reportto");
dashboard=findViewById(R.id.dashboard);
taskmenu=findViewById(R.id.taskmenu);
contact=findViewById(R.id.contactmenu);
opportunity=findViewById(R.id.opportunitymenu);
account=findViewById(R.id.accountmenu);
logout=findViewById(R.id.logout);
// user = (TextView) findViewById(R.id.username);
profile=findViewById(R.id.profile);
mCompressor = new FileCompressor(this);
firstname = (TextView) findViewById(R.id.firstname);
lastname = (TextView) findViewById(R.id.lastname);
mobile=findViewById(R.id.mobile);
role=findViewById(R.id.role);
report_to=findViewById(R.id.report_to);
firstname.setText(first_name);
lastname.setText(last_name);
mobile.setText(mobile_no);
role.setText(role_id);
report_to.setText(reportto);
// user.setText(username);
toolbar = findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
// getSupportActionBar().setTitle("DASHBOARD");
final ActionBar ab = getSupportActionBar();
ab.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
ab.setCustomView(R.layout.toolbar_spinner);
if (ab != null) {
ab.setDisplayShowTitleEnabled(false);
mTitle = (TextView) findViewById(R.id.toolbar_title);
mTitle.setText("DASHBOARD");
mTitle.setGravity(Gravity.CENTER_HORIZONTAL);
// Typeface typeface = Typeface.createFromAsset(getApplicationContext ().getAssets (), "fonts/astype - Secca Light.otf");
// mTitle.setTypeface (typeface);
}
ab.setHomeAsUpIndicator(R.drawable.menu);
ab.setDisplayHomeAsUpEnabled(true);
//ab.setTitle ("HOME");
setSearchtollbar();
viewPager = (ViewPager) findViewById(R.id.viewpager);
setupViewPager(viewPager);
tabLayout = (TabLayout) findViewById(R.id.tabs);
tabLayout.setupWithViewPager(viewPager);
fragment = new DashboardFragement();
loadFragment(fragment);
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
drawerLayout = (DrawerLayout) findViewById(R.id.drawer);
if (navigationView != null) {
setupDrawerContent (navigationView);
}
// TextView dashboard=findViewById(R.id.menu_dashboard);
dashboard.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
mTitle.setText("Dashboard");
fragment = new DashboardFragement();
loadFragment(fragment);
drawerLayout.closeDrawer(GravityCompat.START);
}
});
// TextView task=findViewById(R.id.menu_task);
taskmenu.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
mTitle.setText("Task List");
fragment = new TaskFragement();
loadFragment(fragment);
drawerLayout.closeDrawer(GravityCompat.START);
}
});
account.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
mTitle.setText("Account List");
fragment = new AccountFragement();
loadFragment(fragment);
drawerLayout.closeDrawer(GravityCompat.START);
}
});
contact.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
mTitle.setText("Contact List");
fragment = new ContactFragment();
loadFragment(fragment);
drawerLayout.closeDrawer(GravityCompat.START);
}
});
// TextView opportunity=findViewById(R.id.menu_opportunity);
opportunity.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
mTitle.setText("Opportunity List");
fragment = new SalesStageFragment();
loadFragment(fragment);
drawerLayout.closeDrawer(GravityCompat.START);
}
});
// TextView logout=findViewById(R.id.menu_logout);
logout.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
SharedPreferences preferences = getSharedPreferences("login", Context.MODE_PRIVATE);
SharedPreferences.Editor editor = preferences.edit();
editor.clear();
editor.commit();
Intent i = new Intent(MainActivity.this, LoginActivity.class);
startActivity(i);
finish();
drawerLayout.closeDrawer(GravityCompat.START);
}
});
profile.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
selectImage();
}
});
initBottomNavigationItems();
}
private void setupViewPager(ViewPager viewPager) {
ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());
adapter.addFragment(new TaskFragement(), "All");
adapter.addFragment(new AccountFragement(), "Incomplete");
adapter.addFragment(new ContactFragment(), "Scheduled");
adapter.addFragment(new ContactFragment(), "Today");
adapter.addFragment(new ContactFragment(), "Weekwise");
viewPager.setAdapter(adapter);
}
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);
}
}
private void selectImage() {
final CharSequence[] items = {"Take Photo", "Choose from Gallery",
"Cancel"};
android.app.AlertDialog.Builder builder = new android.app.AlertDialog.Builder(MainActivity.this);
builder.setItems(items, new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int item) {
if (items[item].equals("Take Photo")) {
MainActivity.this.requestStoragePermission(true);
} else if (items[item].equals("Choose from Gallery")) {
MainActivity.this.requestStoragePermission(false);
} else if (items[item].equals("Cancel")) {
dialog.dismiss();
}
}
});
builder.show();
}
public void initBottomNavigationItems() {
BottomNavigationView bottomNavigationView = (BottomNavigationView) findViewById(R.id.navigation);
bottomNavigationView.setOnNavigationItemSelectedListener(new BottomNavigationView.OnNavigationItemSelectedListener() {
#Override
public boolean onNavigationItemSelected(#NonNull MenuItem item) {
Fragment fragment;
switch (item.getItemId()) {
case R.id.account:
mTitle.setText("ACCOUNT LIST");
fragment = new AccountFragement();
loadFragment(fragment);
return true;
case R.id.task:
mTitle.setText("TASK LIST");
fragment = new TaskFragement();
loadFragment(fragment);
return true;
case R.id.contact:
mTitle.setText("CONTACT LIST");
fragment = new ContactFragment();
loadFragment(fragment);
return true;
case R.id.opportunity:
mTitle.setText("OPPORTUNITY LIST");
fragment = new SalesStageFragment();
loadFragment(fragment);
return true;
}
return false;
}
});
}
private void loadFragment(Fragment fragment) {
// load fragment
FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
transaction.replace(R.id.frame_container, fragment);
transaction.addToBackStack(null);
transaction.commit();
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu_main, menu);
menu.findItem(R.id.search).setVisible(false);
return true;
}
private void setupDrawerContent(NavigationView navigationView) {
//revision: this don't works, use setOnChildClickListener() and setOnGroupClickListener() above instead
navigationView.setNavigationItemSelectedListener(
new NavigationView.OnNavigationItemSelectedListener() {
#Override
public boolean onNavigationItemSelected(MenuItem menuItem) {
if(menuItem.isChecked ()){
drawerLayout.openDrawer (GravityCompat.START);}
else {
drawerLayout.closeDrawer (GravityCompat.START);
}
return true;
}
});
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
if(ismenutoggle==true) {
drawerLayout.openDrawer (GravityCompat.START);
ismenutoggle=false;
}
else{
drawerLayout.closeDrawer (GravityCompat.START);
ismenutoggle=true;
}
return true;
}
return super.onOptionsItemSelected(item);
}
private AdapterView.OnItemClickListener mDrawerItemClickedListener = new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> arg0, View arg1, int position,
long arg3) {
}
};
#Override
public void onBackPressed() {
if (getSupportFragmentManager().getBackStackEntryCount() == 0) {
finish();
}
}
private DrawerLayout.DrawerListener mDrawerListener = new DrawerLayout.DrawerListener () {
#Override
public void onDrawerStateChanged(int status) {
}
#Override
public void onDrawerSlide(View view, float slideArg) {
}
#Override
public void onDrawerOpened(View view) {
drawerLayout.openDrawer (view);
}
#Override
public void onDrawerClosed(View view) {
drawerLayout.closeDrawer (view);
}
};
public void setSearchtollbar()
{
searchtollbar = (Toolbar) findViewById(R.id.searchtoolbar);
if (searchtollbar != null) {
searchtollbar.inflateMenu(R.menu.menu_search);
search_menu=searchtollbar.getMenu();
searchtollbar.setNavigationOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP)
circleReveal(R.id.searchtoolbar,1,true,false);
else
searchtollbar.setVisibility(View.GONE);
}
});
item_search = search_menu.findItem(R.id.action_filter_search);
MenuItemCompat.setOnActionExpandListener(item_search, new MenuItemCompat.OnActionExpandListener() {
#Override
public boolean onMenuItemActionCollapse(MenuItem item) {
// Do something when collapsed
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
circleReveal(R.id.searchtoolbar,1,true,false);
}
else
searchtollbar.setVisibility(View.GONE);
return true;
}
#Override
public boolean onMenuItemActionExpand(MenuItem item) {
// Do something when expanded
return true;
}
});
initSearchView();
} else
Log.d("toolbar", "setSearchtollbar: NULL");
}
public void initSearchView()
{
final SearchView searchView = (SearchView) search_menu.findItem(R.id.action_filter_search).getActionView();
// Enable/Disable Submit button in the keyboard
searchView.setSubmitButtonEnabled(false);
// Change search close button image
ImageView closeButton = searchView.findViewById(R.id.search_close_btn);
closeButton.setImageResource(R.drawable.ic_close_black_24dp);
// closeButton.setImageResource(ContextCompat.getDrawable(getApplication(), R.drawable.ic_close_black_24dp));
// set hint and the text colors
EditText txtSearch = ((EditText) searchView.findViewById(R.id.search_src_text));
txtSearch.setHint("Search..");
txtSearch.setHintTextColor(Color.DKGRAY);
txtSearch.setTextColor(getResources().getColor(R.color.colorPrimary));
// set the cursor
AutoCompleteTextView searchTextView = (AutoCompleteTextView) searchView.findViewById(R.id.search_src_text);
try {
Field mCursorDrawableRes = TextView.class.getDeclaredField("mCursorDrawableRes");
mCursorDrawableRes.setAccessible(true);
mCursorDrawableRes.set(searchTextView, R.drawable.search_cursor); //This sets the cursor resource ID to 0 or #null which will make it visible on white background
} catch (Exception e) {
e.printStackTrace();
}
searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
#Override
public boolean onQueryTextSubmit(String query) {
callSearch(query);
searchView.clearFocus();
return true;
}
#Override
public boolean onQueryTextChange(String newText) {
callSearch(newText);
return true;
}
public void callSearch(String query) {
Log.i("query", "" + query);
}
});
}
#RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
public void circleReveal(int viewID, int posFromRight, boolean containsOverflow, final boolean isShow)
{
final View myView = findViewById(viewID);
int width=myView.getWidth();
if(posFromRight>0)
width-=(posFromRight*getResources().getDimensionPixelSize(R.dimen.abc_action_button_min_width_material))-(getResources().getDimensionPixelSize(R.dimen.abc_action_button_min_width_material)/ 2);
if(containsOverflow)
width-=getResources().getDimensionPixelSize(R.dimen.abc_action_button_min_width_overflow_material);
int cx=width;
int cy=myView.getHeight()/2;
Animator anim;
if(isShow)
anim = ViewAnimationUtils.createCircularReveal(myView, cx, cy, 0,(float)width);
else
anim = ViewAnimationUtils.createCircularReveal(myView, cx, cy, (float)width, 0);
anim.setDuration((long)220);
// make the view invisible when the animation is done
anim.addListener(new AnimatorListenerAdapter() {
#Override
public void onAnimationEnd(Animator animation) {
if(!isShow)
{
super.onAnimationEnd(animation);
myView.setVisibility(View.INVISIBLE);
}
}
});
// make the view visible and start the animation
if(isShow)
myView.setVisibility(View.VISIBLE);
// start the animation
anim.start();
}
public void setActionBarTitle(String title) {
mTitle.setText(title);
}
}

I think you are asking if we can create two tabs and when the user presses any of the tab, same fragment should appear instead of multiple fragments. If that is your question, may be i can help.
You will have to create one class that extends FragmentStateAdapter , then you should create a single class that extends Fragment instead of having multiple classes and a layout.
Create ClassFragmentPagerAdapter like this:
public class ClassFragmentPagerAdapter extends FragmentStateAdapter {
public ClassFragmentPagerAdapter (#NonNull FragmentManager fragmentManager, #NonNull Lifecycle lifecycle) {
super(fragmentManager, lifecycle);
}
#NonNull
#Override
public Fragment createFragment(int position) {
if (position == 0) {
return new ClassFragment ();
}
return new ClassFragment ();
}
#Override
public int getItemCount() {
return 2;
}
Then after that create the other ClassFragment that extends Fragment:
public class ClassFragment extends Fragment {
#Nullable
#Override
public View onCreateView(#NonNull LayoutInflater inflater, #Nullable ViewGroup
container, #Nullable Bundle savedInstanceState) {
super.onCreateView(inflater, container, savedInstanceState);
View view = inflater.inflate(R.layout.layout_name, container, false);
return view;
}
#Override
public void onViewCreated(#NonNull View view, #Nullable Bundle savedInstanceState)
{
super.onViewCreated(view, savedInstanceState);
//do stuff here
}
Hope it helps! Happy coding:)

Adapter is multiplying with the same data android

I have a SwitchTabActivty with 4 items. In my case, I use the second item to get some data from the web through a recyclerview. The problem is that when I press the fourth item (it contains a button that's starting an activity) and I go back to my second tab , my recycler view is multiplied with the same data again.
Switchtabactivity :
public class SwitchTabActivity extends AppCompatActivity {
private SectionsPagerAdapter mSectionsPagerAdapter;
private ViewPager mViewPager;
private boolean pressToExit = false;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_switch_tab);
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());
// Set up the ViewPager with the sections adapter.
mViewPager = (ViewPager) findViewById(R.id.container);
mViewPager.setAdapter(mSectionsPagerAdapter);
TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs);
tabLayout.setupWithViewPager(mViewPager);
tabLayout.getTabAt(0).setIcon(R.drawable.weather_tab);
tabLayout.getTabAt(1).setIcon(R.drawable.events);
tabLayout.getTabAt(2).setIcon(R.drawable.details_tab);
tabLayout.getTabAt(3).setIcon(R.drawable.settings_tab);
setColorTab(tabLayout);
}
private void setColorTab(TabLayout tab) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
tab.setTabTextColors(getResources().getColorStateList(R.color.tab_colors, null));
} else {
tab.setTabTextColors(getResources().getColorStateList(R.color.tab_colors));
}
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
}
#Override
public void onBackPressed() {
if (!pressToExit) {
Toast.makeText(this, "Press back again to exit.", Toast.LENGTH_SHORT).show();
pressToExit = true;
} else {
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_HOME);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
}
}
#Override
public void onResume() {
super.onResume();
pressToExit = false;
}
#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_switch_tab, 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);
}
public class SectionsPagerAdapter extends FragmentPagerAdapter {
public SectionsPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int position) {
switch (position) {
case 0:
return WeatherFragment.newInstance(position);
case 1:
return EventFragment.newInstance(position);
case 2:
return OwnEventFragment.newInstance(position);
case 3:
return SettingsFragment.newInstance(position);
}
return null;
}
#Override
public int getCount() {
return 4;
}
#Override
public CharSequence getPageTitle(int position) {
switch (position) {
case 0:
return "Weather";
case 1:
return "Events";
case 2:
return "My Events";
case 3:
return "Settings";
}
return null;
}
}
EventFragment :
public class EventFragment extends Fragment implements EventResponse {
private String latitude, longitude;
private static final String ARG_SECTION_NUMBER = "section_number";
private RecyclerView eventList;
private EventAdapter adapter;
private TextView ifNullEvents;
private final ArrayList<EventData> eventsData = new ArrayList<>();
private UserDataBase db;
private List<String> latLonList;
private ProgressBar progressBar;
public EventFragment() {
}
public static EventFragment newInstance(int sectionNumber) {
EventFragment fragment = new EventFragment();
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.event_fragment, container, false);
initView(rootView);
db = new UserDataBase(getContext());
checkLocationChanged();
latLonList = db.getLatLon();
latitude = latLonList.get(0);
longitude = latLonList.get(1);
String EVENT_BRITE_URL_PARSE = "MY_URL";
String EVENT_BRITE_TOKEN = "MY_TOKEN";
new EventBriteApi(this, getContext()).execute(EVENT_BRITE_URL_PARSE + EVENT_BRITE_TOKEN);
setupRecyclerView();
setLocationMessage();
return rootView;
}
private void initView(View view) {
eventList = (RecyclerView) view.findViewById(R.id.event_recycler_view);
ifNullEvents = (TextView) view.findViewById(R.id.text_null_location);
progressBar = (ProgressBar) view.findViewById(R.id.progress_bar_event);
}
private void checkLocationChanged() {
if (WePrefs.isLocationChanged) {
eventsData.clear();
ifNullEvents.setText(getResources().getString(R.string.waiting_for_data));
ifNullEvents.setVisibility(View.VISIBLE);
progressBar.setVisibility(View.VISIBLE);
WePrefs.setIsLocationChanged(false);
} else {
progressBar.setVisibility(View.GONE);
ifNullEvents.setVisibility(View.GONE);
}
if (WePrefs.isNullEventLocation) {
ifNullEvents.setText(getResources().getString(R.string.no_events_found));
ifNullEvents.setVisibility(View.VISIBLE);
progressBar.setVisibility(View.INVISIBLE);
WePrefs.setIsNullEventLocation(false);
}
}
private void setupRecyclerView() {
eventList.setHasFixedSize(true);
LinearLayoutManager linearLayoutManager = new LinearLayoutManager(getActivity());
linearLayoutManager.setOrientation(LinearLayoutManager.VERTICAL);
eventList.setLayoutManager(linearLayoutManager);
adapter = new EventAdapter(getActivity(), eventsData);
adapter.setHasStableIds(true);
eventList.setAdapter(adapter);
}
#Override
public void onResume() {
checkLocationChanged();
setLocationMessage();
super.onResume();
}
private void setLocationMessage() {
if (eventsData.isEmpty()) {
ifNullEvents.setVisibility(View.VISIBLE);
progressBar.setVisibility(View.VISIBLE);
} else {
ifNullEvents.setVisibility(View.GONE);
progressBar.setVisibility(View.GONE);
}
progressBar.setVisibility(View.GONE);
}
#Override
public void getArray(ArrayList<EventData> data) {
eventsData.clear();
eventsData.addAll(new ArrayList<>(new LinkedHashSet<>(data)));
}
}
Adapter :
ublic class EventAdapter extends RecyclerView.Adapter<EventAdapter.EventHolder> {
ArrayList<EventData> data;
Context context;
public EventAdapter(Context context, ArrayList<EventData> events) {
this.context = context;
data = events;
}
#Override
public EventHolder onCreateViewHolder(ViewGroup parent, int viewType) {
RelativeLayout layout = (RelativeLayout) LayoutInflater.from(parent.getContext()).inflate(R.layout.single_event_view, parent, false);
return new EventAdapter.EventHolder(layout);
}
#Override
public void onBindViewHolder(EventHolder holder, int position) {
holder.eventName.setText(data.get(position).getEventName());
if (data.get(position).getEventImageUrl() != null) {
Picasso.with(context).load(data.get(position).getEventImageUrl()).into(holder.eventPic);
} else {
holder.eventPic.setImageDrawable(ContextCompat.getDrawable(context, R.drawable.no_image));
}
}
#Override
public int getItemCount() {
return data.size();
}
public class EventHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
TextView eventName;
ImageView eventPic;
RelativeLayout layout;
public EventHolder(View itemView) {
super(itemView);
eventName = (TextView) itemView.findViewById(R.id.event_name);
eventPic = (ImageView) itemView.findViewById(R.id.event_image);
layout = (RelativeLayout) itemView.findViewById(R.id.event_layout);
layout.setOnClickListener(this);
}
#Override
public void onClick(View view) {
//context.startActivity(new Intent(context, WebViewActivity.class));
}
}
}
Those are some of my java classes that I use for this kind of thing.
Anyway, another problem is that, when I change the location ( to receive my events) I must go to another tab and after that to come back to see my events list ( I think it needs to recreate the view ) so , because of that I called onResume, but it does not help.

SetOnItemClickListener not working inside Fragment

I am using RecycleView to display list of Name and Description. I am using Fragment to view the desired layout. Now, I want to open new Activity onItemClick. I have declared SetOnItemClickListener inside the Fragment, i.e. in "View onCreateView". But it is not working. Here is my code:
This is my java class:
public class TabsHeaderActivity extends AppCompatActivity {
private static final String TAG = TabsHeaderActivity.class.getSimpleName();
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_tabs_header);
final Toolbar toolbar = (Toolbar) findViewById(R.id.htab_toolbar);
setSupportActionBar(toolbar);
if (getSupportActionBar() != null) getSupportActionBar().setTitle("TECHNOLOGY");
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
final ViewPager viewPager = (ViewPager) findViewById(R.id.htab_viewpager);
setupViewPager(viewPager);
TabLayout tabLayout = (TabLayout) findViewById(R.id.htab_tabs);
tabLayout.setupWithViewPager(viewPager);
final CollapsingToolbarLayout collapsingToolbarLayout = (CollapsingToolbarLayout) findViewById(R.id.htab_collapse_toolbar);
try {
Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.header);
Palette.from(bitmap).generate(new Palette.PaletteAsyncListener() {
#SuppressWarnings("ResourceType")
#Override
public void onGenerated(Palette palette) {
int vibrantColor = palette.getVibrantColor(R.color.primary_500);
int vibrantDarkColor = palette.getDarkVibrantColor(R.color.primary_700);
collapsingToolbarLayout.setContentScrimColor(vibrantColor);
collapsingToolbarLayout.setStatusBarScrimColor(vibrantDarkColor);
}
});
} catch (Exception e) {
// if Bitmap fetch fails, fallback to primary colors
Log.e(TAG, "onCreate: failed to create bitmap from background", e.fillInStackTrace());
collapsingToolbarLayout.setContentScrimColor(
ContextCompat.getColor(this, R.color.primary_500)
);
collapsingToolbarLayout.setStatusBarScrimColor(
ContextCompat.getColor(this, R.color.primary_700)
);
}
tabLayout.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
#Override
public void onTabSelected(TabLayout.Tab tab) {
viewPager.setCurrentItem(tab.getPosition());
Log.d(TAG, "onTabSelected: pos: " + tab.getPosition());
switch (tab.getPosition()) {
case 0:
break;
}
}
#Override
public void onTabUnselected(TabLayout.Tab tab) {
}
#Override
public void onTabReselected(TabLayout.Tab tab) {
}
});
}
private void setupViewPager(ViewPager viewPager) {
ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());
adapter.addFrag(new DummyFragment(
ContextCompat.getColor(this, R.color.cyan_50)), "Cyan");
adapter.addFrag(new DummyFragment(
ContextCompat.getColor(this, R.color.amber_50)), "Amber");
adapter.addFrag(new DummyFragment(
ContextCompat.getColor(this, R.color.purple_50)), "Purple");
adapter.addFrag(new DummyFragment(
ContextCompat.getColor(this, R.color.grey)), "Grey");
viewPager.setAdapter(adapter);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_main, menu);
final MenuItem searchItem = menu.findItem(R.id.menuSearch);
final SearchView searchView = (SearchView) MenuItemCompat.getActionView(searchItem);
searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener(){
#Override
public boolean onQueryTextSubmit(String query) {
return false;
}
#Override
public boolean onQueryTextChange(String newText) {
return true;
}
});
return super.onCreateOptionsMenu(menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
finish();
return true;
}
return super.onOptionsItemSelected(item);
}
private static 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 addFrag(Fragment fragment, String title) {
mFragmentList.add(fragment);
mFragmentTitleList.add(title);
}
#Override
public CharSequence getPageTitle(int position) {
return mFragmentTitleList.get(position);
}
}
public static class DummyFragment extends Fragment {
int color;
Intent intent;
public DummyFragment() {
}
#SuppressLint("ValidFragment")
public DummyFragment(int color) {
this.color = color;
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.dummy_fragment, container, false);
final FrameLayout frameLayout = (FrameLayout) view.findViewById(R.id.dummyfrag_bg);
frameLayout.setBackgroundColor(color);
RecyclerView recyclerView = (RecyclerView) view.findViewById(R.id.dummyfrag_scrollableview);
LinearLayoutManager linearLayoutManager = new LinearLayoutManager(getActivity().getBaseContext());
recyclerView.setLayoutManager(linearLayoutManager);
recyclerView.setHasFixedSize(true);
DessertAdapter adapter = new DessertAdapter(getContext());
recyclerView.setAdapter(adapter);
adapter.SetOnItemClickListener(new DessertAdapter.OnItemClickListener(){
#Override
public void onItemClick(View view, int position) {
switch (position) {
case 3:
intent = new Intent(view.getContext(), LaunchScreenActivity.class);
startActivity(intent);
}
}
});
return view;
}
}
}
This is my Adapter class:
public class DessertAdapter extends RecyclerView.Adapter<DessertAdapter.DessertVh> {
private List<Dessert> desserts = new ArrayList<>();
OnItemClickListener clickListener;
private Context context;
public DessertAdapter(Context context) {
this.context = context;
desserts = Dessert.prepareDesserts(
context.getResources().getStringArray(R.array.dessert_names),
context.getResources().getStringArray(R.array.dessert_descriptions));
}
#Override
public DessertVh onCreateViewHolder(ViewGroup parent, int viewType) {
LayoutInflater inflater = LayoutInflater.from(parent.getContext());
View view = inflater.inflate(R.layout.item_dessert, parent, false);
return new DessertAdapter.DessertVh(view);
}
#Override
public void onBindViewHolder(DessertVh holder, int position) {
Dessert dessert = desserts.get(position);
holder.mName.setText(dessert.getName());
holder.mDescription.setText(dessert.getDescription());
holder.mFirstLetter.setText(String.valueOf(dessert.getFirstLetter()));
}
#Override
public int getItemCount() {
return desserts == null ? 0 : desserts.size();
}
public class DessertVh extends RecyclerView.ViewHolder implements View.OnClickListener{
private TextView mName;
private TextView mDescription;
private TextView mFirstLetter;
public DessertVh(View itemView) {
super(itemView);
mName = (TextView) itemView.findViewById(R.id.txt_name);
mDescription = (TextView) itemView.findViewById(R.id.txt_desc);
mFirstLetter = (TextView) itemView.findViewById(R.id.txt_firstletter);
}
#Override
public void onClick(View v) {
clickListener.onItemClick(v, getPosition());
}
}
public interface OnItemClickListener {
public void onItemClick(View view, int position);
}
public void SetOnItemClickListener(final OnItemClickListener itemClickListener) {
this.clickListener = itemClickListener;
}
I am not sure what I am doing wrong. I have checked it in debugger mode. I have put a breakpoint at line:
adapter.SetOnItemClickListener(new DessertAdapter.OnItemClickListener(){
Now, when my Activity is loading debugger comes on this line but, doesn't go inside it. But, when I am clicking something, the debugger doesn't even come on this line, means when I am clicking an item, SetOnItemClickListener doesn't get triggered.
My xml code is:
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/dummyfrag_bg"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/bg_light">
<android.support.v7.widget.RecyclerView
android:id="#+id/dummyfrag_scrollableview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clipToPadding="false"
android:paddingBottom="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_horizontal_margin" />
</FrameLayout>

Well, you implemented a normal click listener
DessertVh extends RecyclerView.ViewHolder implements View.OnClickListener
But you never set it.
public DessertVh(View itemView) {
super(itemView);
mName = (TextView) itemView.findViewById(R.id.txt_name);
mDescription = (TextView) itemView.findViewById(R.id.txt_desc);
mFirstLetter = (TextView) itemView.findViewById(R.id.txt_firstletter);
}
Did you forget about itemView.setOnClickListener(this)?

Android - TabLayout & ViewPager > Fragments > OnListFragmentInteractionListener

I'm new to Android and I started building a "Navigation Drawer Activity" project. I added a TabLayout and ViewPager to my activity_main.xml and now I can swipe between different lists. When I click an item in a list, it calls onListFragmentInteraction in my MainActivity.java. I tried the code below to dynamically add a Detail fragment when a user clicks an item in the list, but I get this error. My MainActivity class does "implement CustomerFragment.OnListFragmentInteractionListener"
First, is my attempt at showing a detail fragment inside a ViewPager correct? Would the code I am attempting below add a fragment in the current tab?
Secondly, does anyone know why I am getting this error?
Thanks so much!
Error:
java.lang.RuntimeException: com.myproject.android.MainActivity#186e12d
must implement OnFragmentInteractionListener
MainActivity:
public class MainActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener, TabLayout.OnTabSelectedListener, CustomerFragment.OnListFragmentInteractionListener, GoogleApiClient.OnConnectionFailedListener {
private GoogleApiClient mGoogleApiClient;
private TabLayout tabLayout;
private ViewPager viewPager;
private Pager adapter;
public void onListFragmentInteraction(Customer customer){
FragmentManager fm = getSupportFragmentManager();
CustomerDetailFragment fragment = CustomerDetailFragment.newInstance(customer);
fm.beginTransaction().add(R.id.pager, fragment).commit();
}
#Override
public void onTabSelected(TabLayout.Tab tab) {
viewPager.setCurrentItem(tab.getPosition());
}
#Override
public void onTabUnselected(TabLayout.Tab tab) { }
#Override
public void onTabReselected(TabLayout.Tab tab) { }
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
tabLayout = (TabLayout) findViewById(R.id.tabLayout);
tabLayout.addTab(tabLayout.newTab().setText("Home"));
tabLayout.addTab(tabLayout.newTab().setText("Customers"));
tabLayout.addTab(tabLayout.newTab().setText("Jobs"));
tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);
viewPager = (ViewPager) findViewById(R.id.pager);
adapter = new Pager(getSupportFragmentManager(), tabLayout.getTabCount());
viewPager.setAdapter(adapter);
tabLayout.addOnTabSelectedListener(this);
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();
}
});
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.addDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
FirebaseMessaging.getInstance().subscribeToTopic("global");
String token = FirebaseInstanceId.getInstance().getToken();
// Check Google Play Services
mGoogleApiClient = new GoogleApiClient.Builder(this)
.enableAutoManage(this, this)
.addApi(Drive.API)
.addScope(Drive.SCOPE_FILE)
.build();
// test
Date d = new Date();
DbHandler dbHandler = new DbHandler(this, null, null, 1);
Customer customer = new Customer(1, 1, 1, 1, "Test", "Test", "Test", false, d, 1, d, 1);
dbHandler.addCustomer(customer);
}
#Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
#SuppressWarnings("StatementWithEmptyBody")
#Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.nav_camera) {
startActivity(new Intent(this, LoginActivity.class));
} else if (id == R.id.nav_gallery) {
startActivity(new Intent(this, SyncActivity.class));
} else if (id == R.id.nav_slideshow) {
} else if (id == R.id.nav_manage) {
} else if (id == R.id.nav_share) {
} else if (id == R.id.nav_send) {
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
#Override
public void onConnectionFailed(#NonNull ConnectionResult connectionResult) {
}
}
Customer List Fragment:
public class CustomerFragment extends Fragment {
private OnListFragmentInteractionListener mListener;
public CustomerFragment() {
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_customer_list, container, false);
SearchView sv = (SearchView) view.findViewById(R.id.searchview);
RecyclerView rv = (RecyclerView) view.findViewById(R.id.recyclerview);
// Adapter
rv.setLayoutManager(new LinearLayoutManager(view.getContext()));
final CustomerAdapter adapter = new CustomerAdapter(getCustomers(), mListener);
rv.setAdapter(adapter);
// Search
sv.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
#Override
public boolean onQueryTextSubmit(String query) {
return false;
}
#Override
public boolean onQueryTextChange(String query) {
//adapter.getFilter().filter(query);
return false;
}
});
return view;
}
private ArrayList<Customer> getCustomers() {
DbHandler dbHandler = new DbHandler(this.getActivity(), null, null, 1);
ArrayList<Customer> customers = dbHandler.getCustomers();
return customers;
}
#Override
public void onAttach(Context context) {
super.onAttach(context);
if (context instanceof OnListFragmentInteractionListener) {
mListener = (OnListFragmentInteractionListener) context;
} else {
throw new RuntimeException(context.toString() + " must implement OnListFragmentInteractionListener");
}
}
#Override
public void onDetach() {
super.onDetach();
mListener = null;
}
public interface OnListFragmentInteractionListener {
void onListFragmentInteraction(Customer customer);
}
}
Customer Adapter:
public class CustomerAdapter extends RecyclerView.Adapter<CustomerAdapter.ViewHolder> {
private final List<Customer> mValues;
private final OnListFragmentInteractionListener mListener;
public CustomerAdapter(List<Customer> items, OnListFragmentInteractionListener listener) {
mValues = items;
mListener = listener;
}
#Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext())
.inflate(R.layout.fragment_customer, parent, false);
return new ViewHolder(view);
}
#Override
public void onBindViewHolder(final ViewHolder holder, int position) {
Customer customer = mValues.get(position);
holder.mItem = customer;
holder.mIdView.setText(String.valueOf(customer.getId()));
holder.mContentView.setText(customer.getCompanyName());
holder.mView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (null != mListener) {
mListener.onListFragmentInteraction(holder.mItem);
}
}
});
}
#Override
public int getItemCount() {
return mValues.size();
}
public class ViewHolder extends RecyclerView.ViewHolder {
public final View mView;
public final TextView mIdView;
public final TextView mContentView;
public Customer mItem;
public ViewHolder(View view) {
super(view);
mView = view;
mIdView = (TextView) view.findViewById(R.id.id);
mContentView = (TextView) view.findViewById(R.id.content);
}
#Override
public String toString() {
return super.toString() + " '" + mContentView.getText() + "'";
}
}
}
UPDATE: It looks like I needed to add both onListFragmentInteraction AND onFragmentInteraction. The first is for the CustomerListFragment and the 2nd is for the CustomerDetailFragment.
And to get the CustomerDetailFragment working with the tabs, I followed this and got it working:
https://medium.com/#nilan/separate-back-navigation-for-a-tabbed-view-pager-in-android-459859f607e4#.lrjeexdcp
#Override
public void onListFragmentInteraction(Customer customer){
FragmentManager fm = getSupportFragmentManager();
CustomerDetailFragment fragment = CustomerDetailFragment.newInstance(customer);
fm.beginTransaction().add(R.id.pager, fragment).commit();
}
#Override
public void onFragmentInteraction(Uri uri) {
}

You need to put
public void onListFragmentInteraction(Customer customer){
FragmentManager fm = getSupportFragmentManager();
CustomerDetailFragment fragment = CustomerDetailFragment.newInstance(customer);
fm.beginTransaction().add(R.id.pager, fragment).commit();
}
Inside your MainActivity class instead of outside of it.
If that's not actually how your code is, edit your answer to break up the blocks to accurately represent how your code is built and include your interfance inside the fragment for the listener. You also may need the #Override tag above the onListFragmentInteraction implementation
Edit
As I mentioned above you need to put the #Override tag above the onListFragmentInteraction implementation, look at every other listener implementation you already have.

Error on Fragment?

Hello everyone I am developing an android app and I am new to this development.
I am facing on error which says:
Error:(134, 19) error: RecyclerTouchListener is not abstract and does not override abstract method onRequestDisallowInterceptTouchEvent(boolean) in OnItemTouchListener
Here is my code from where the above error appears
FragmentDrawer.java
public class FragmentDrawer extends Fragment {
private static String TAG = FragmentDrawer.class.getSimpleName();
private RecyclerView recyclerView;
private ActionBarDrawerToggle mDrawerToggle;
private DrawerLayout mDrawerLayout;
private NavigationDrawerAdapter adapter;
private View containerView;
private static String[] titles = null;
private FragmentDrawerListener drawerListener;
public FragmentDrawer() {
}
public void setDrawerListener(FragmentDrawerListener listener) {
this.drawerListener = listener;
}
public static List<NavDrawerItem> getData() {
List<NavDrawerItem> data = new ArrayList<>();
// preparing navigation drawer items
for (int i = 0; i < titles.length; i++) {
NavDrawerItem navItem = new NavDrawerItem();
navItem.setTitle(titles[i]);
data.add(navItem);
}
return data;
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// drawer labels
titles = getActivity().getResources().getStringArray(R.array.nav_drawer_labels);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflating view layout
View layout = inflater.inflate(R.layout.fragment_navigation_drawer, container, false);
recyclerView = (RecyclerView) layout.findViewById(R.id.drawerList);
adapter = new NavigationDrawerAdapter(getActivity(), getData());
recyclerView.setAdapter(adapter);
recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
recyclerView.addOnItemTouchListener(new RecyclerTouchListener(getActivity(), recyclerView, new ClickListener() {
#Override
public void onClick(View view, int position) {
drawerListener.onDrawerItemSelected(view, position);
mDrawerLayout.closeDrawer(containerView);
}
#Override
public void onLongClick(View view, int position) {
}
}));
return layout;
}
public void setUp(int fragmentId, DrawerLayout drawerLayout, final Toolbar toolbar) {
containerView = getActivity().findViewById(fragmentId);
mDrawerLayout = drawerLayout;
mDrawerToggle = new ActionBarDrawerToggle(getActivity(), drawerLayout, toolbar, R.string.drawer_open, R.string.drawer_close) {
#Override
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
getActivity().invalidateOptionsMenu();
}
#Override
public void onDrawerClosed(View drawerView) {
super.onDrawerClosed(drawerView);
getActivity().invalidateOptionsMenu();
}
#Override
public void onDrawerSlide(View drawerView, float slideOffset) {
super.onDrawerSlide(drawerView, slideOffset);
toolbar.setAlpha(1 - slideOffset / 2);
}
};
mDrawerLayout.setDrawerListener(mDrawerToggle);
mDrawerLayout.post(new Runnable() {
#Override
public void run() {
mDrawerToggle.syncState();
}
});
}
public static interface ClickListener {
public void onClick(View view, int position);
public void onLongClick(View view, int position);
}
static class RecyclerTouchListener implements RecyclerView.OnItemTouchListener {
private GestureDetector gestureDetector;
private ClickListener clickListener;
public RecyclerTouchListener(Context context, final RecyclerView recyclerView, final ClickListener clickListener) {
this.clickListener = clickListener;
gestureDetector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() {
#Override
public boolean onSingleTapUp(MotionEvent e) {
return true;
}
#Override
public void onLongPress(MotionEvent e) {
View child = recyclerView.findChildViewUnder(e.getX(), e.getY());
if (child != null && clickListener != null) {
clickListener.onLongClick(child, recyclerView.getChildPosition(child));
}
}
});
}
#Override
public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent e) {
View child = rv.findChildViewUnder(e.getX(), e.getY());
if (child != null && clickListener != null && gestureDetector.onTouchEvent(e)) {
clickListener.onClick(child, rv.getChildPosition(child));
}
return false;
}
#Override
public void onTouchEvent(RecyclerView rv, MotionEvent e) {
}
}
/* public void myClickMethod(View v) {
switch(v.getid()) {
// Just like you were doing
}
}*/
public interface FragmentDrawerListener {
public void onDrawerItemSelected(View view, int position);
}
MainActivity.java
public class MainActivity extends ActionBarActivity implements FragmentDrawer.FragmentDrawerListener {
private static String TAG = MainActivity.class.getSimpleName();
private CharSequence mDrawerTitle;
private ActionBar actionBar;
// used to store app title
private CharSequence mTitle;
private Toolbar mToolbar;
private FragmentDrawer drawerFragment;
private ActionBarDrawerToggle mDrawerToggle;
private Fragment fra;
// FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
View view;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ImageView myImage = (ImageView) findViewById(R.id.imageView);
myImage.setAlpha(50);
mToolbar = (Toolbar) findViewById(R.id.tool_bar1);
setSupportActionBar(mToolbar);
mToolbar.setNavigationIcon(R.drawable.logofinal);
mTitle = mDrawerTitle = getTitle();
/* getSupportActionBar().setDisplayShowHomeEnabled(true);
getSupportActionBar().setHomeButtonEnabled(false);*/
drawerFragment = (FragmentDrawer) getSupportFragmentManager().findFragmentById(R.id.fragment_navigation_drawer);
drawerFragment.setUp(R.id.fragment_navigation_drawer, (DrawerLayout) findViewById(R.id.drawer_layout), mToolbar);
drawerFragment.setDrawerListener(this);
/**
* Creating all buttons instances
* */
// Dashboard News feed button
/*Button btn_newsfeed = (Button)findViewById(R.id.btn_news_feed);
btn_newsfeed.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
switch(view.getId())
{
case R.id.btn_news_feed:
fra= new HomeFragment();
break;
}
}
});
Button btn_friends = (Button) findViewById(R.id.btn_events);
btn_friends.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
switch(view.getId())
{
case R.id.btn_events:
fra= new ContactFragment();
break;
}
}
});*/
// Dashboard Friends button
Button btn_newsfeed = (Button)findViewById(R.id.btn_news_feed);
Button btn_friends = (Button) findViewById(R.id.btn_friends);
// Dashboard Messages button
Button btn_messages = (Button) findViewById(R.id.btn_messages);
// Dashboard Places button
Button btn_places = (Button) findViewById(R.id.btn_places);
// Dashboard Events button
Button btn_events = (Button) findViewById(R.id.btn_events);
// Dashboard Photos button
Button btn_photos = (Button) findViewById(R.id.btn_photos);
//Button btn_Maps = (Button) findViewById(R.id.btn_maps);
/**
* Handling all button click events
* */
// Listening to News Feed button click*/
btn_friends.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
// Launching News Feed Screen
Intent i = new Intent(MainActivity.this, AboutActivity.class);
startActivity(i);
}
});
// Listening Friends button click
btn_newsfeed.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
// Launching News Feed Screen
Intent i = new Intent(MainActivity.this, HomeFragment.class);
startActivity(i);
}
});
// Listening Messages button click
btn_messages.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
// Launching News Feed Screen
Intent i = new Intent(MainActivity.this, MessagesFragment.class);
startActivity(i);
}
});
// Listening to Places button click
btn_places.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
// Launching News Feed Screen
Intent i = new Intent(MainActivity.this, FriendsFragment.class);
startActivity(i);
}
});
// Listening to Events button click
btn_events.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
// Launching News Feed Screen
Intent i = new Intent(MainActivity.this, CampusFragment.class);
startActivity(i);
}
});
// Listening to Photos button click
btn_photos.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
// Launching News Feed Screen
Intent i = new Intent(MainActivity.this, ContactFragment.class);
startActivity(i);
}
});
}
/* public void myClickmethod(View v) {
switch (v.getId()) {
case R.id.btn_news_feed:
Intent i = new Intent(MainActivity.this, HomeFragment.class);
startActivity(i);
break;
default:
break;
}
}*/
#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_main, menu);
return true;
}
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);
}
}
#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;
}
if(id == R.id.action_search){
Toast.makeText(getApplicationContext(), "Search action is selected!", Toast.LENGTH_SHORT).show();
return true;
}
return super.onOptionsItemSelected(item);
}
public void setTitle(CharSequence title) {
mTitle = title;
getSupportActionBar().setTitle(mTitle);
}
#Override
public void onDrawerItemSelected(View view, int position) {
displayView(position);
}
private void displayView(int position) {
Fragment fragment = null;
Intent intent;
String title = getString(R.string.app_name);
switch (position) {
case 0:
Intent i = new Intent(MainActivity.this, HomeFragment.class);
title = getString(R.string.title_home);
startActivity(i);
break;
case 1:
i = new Intent(MainActivity.this, FriendsFragment.class);
title = getString(R.string.title_friends);
startActivity(i);
break;
case 2:
Intent i2=new Intent(getApplicationContext(),MessagesFragment.class);
title = getString(R.string.title_messages);
startActivity(i2);
break;
/* case 3:
Intent i1 = new Intent(MainActivity.this, FriendsFragment.class);
startActivity(i1);
title = getString(R.string.title_department);
startActivity(i1);
break;*/
case 3:
i = new Intent(MainActivity.this, CampusFragment.class);
title = getString(R.string.title_campus_life);
startActivity(i);
break;
case 4:
i = new Intent(MainActivity.this, ContactFragment.class);
title = getString(R.string.title_contact);
startActivity(i);
break;
default:
break;
}
if (fragment != null) {
FragmentManager fragmentManager = getSupportFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.replace(R.id.container_body, fragment);
fragmentTransaction.commit();
// set the toolbar title
getSupportActionBar().setTitle(title);
}
}
public void onBackPressed() {
AlertDialog.Builder alertDlg = new AlertDialog.Builder(this);
alertDlg.setMessage("Are you sure you want to exit?");
alertDlg.setCancelable(false);
alertDlg.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
MainActivity.super.onBackPressed();
}
}
);
alertDlg.setNegativeButton("No", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
// We do nothing
}
});
alertDlg.create().show();
}
}
Would be grateful if anyone helps me.

It sounds like you just need to override the onRequestDisallowTouchEvent() method on your RecyclerTouchListener.
Try adding this within your RecyclerTouchListener class:
#Override
public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {
}
So.. your code should now look like this:
public RecyclerTouchListener(Context context, final RecyclerView recyclerView, final ClickListener clickListener) {
this.clickListener = clickListener;
gestureDetector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() {
#Override
public boolean onSingleTapUp(MotionEvent e) {
return true;
}
#Override
public void onLongPress(MotionEvent e) {
View child = recyclerView.findChildViewUnder(e.getX(), e.getY());
if (child != null && clickListener != null) {
clickListener.onLongClick(child, recyclerView.getChildPosition(child));
}
}
});
#Override
public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept){
}
}
You can refer to this question for more info.
I hope this helps!

Your code is missing one method:
onRequestDisallowInterceptTouchEvent(boolean disallowIntercept)
See in: https://developer.android.com/reference/android/support/v7/widget/RecyclerView.OnItemTouchListener.html
Inside your RecyclerTouchListener class, you need to add this:
#Override
public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {
//Any desired code
}