I have a FloatingActionButton in my android navigation drawer with tablayout which displays the following message :
fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
homeFragment();
SnackBarMessage("Go To Inbox.");
}
});
using snackbar
public void SnackBarMessage(String message){
Snackbar.make(coordinatorLayout, message, Snackbar.LENGTH_LONG).setAction("Action", null).show();
}
let's say I have 3 tabs e.g (tab 0 ,tab 1 , tab 2)
how can I make the Floating action button take me to tab 2 once I click on it
This is the fragment containing the tabs
public class HomeFragment extends Fragment {
private TabLayout tabLayout;
private ViewPager mViewPager;
private OnFragmentInteractionListener mListener;
private SectionsPagerAdapter mSectionsPagerAdapter;
ArrayList<String> tabName;
public HomeFragment() {
// Required empty public constructor
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
}
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_home, container, false);
tabLayout = (TabLayout)view.findViewById(R.id.tabs);
mViewPager = (ViewPager)view.findViewById(R.id.container);
tabName=new ArrayList<String>();
int [] tabIcons = {
R.drawable.ic_home,
R.drawable.ic_move_to_inbox,
R.drawable.ic_notifications,
R.drawable.ic_swap_horiz,
R.drawable.ic_people,
};
String[] strings = { "Main Page Goes Here", "Messages Go Here", "Notifications Go Here", "Trade Page Goes Here", "People Online Page Goes Here"};
for(int i=0;i<5;i++){
tabLayout.addTab(tabLayout.newTab().setIcon(tabIcons[i]));
tabName.add((strings[i]));
}
tabLayout.setTabMode(TabLayout.MODE_SCROLLABLE);
tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);
mSectionsPagerAdapter = new SectionsPagerAdapter(getChildFragmentManager(),tabLayout.getTabCount(),tabName);
mViewPager.setAdapter(mSectionsPagerAdapter);
mViewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout));
tabLayout.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
#Override
public void onTabSelected(TabLayout.Tab tab) {
mViewPager.setCurrentItem(tab.getPosition());
getChildFragmentManager().beginTransaction().addToBackStack(null).commit();
}
#Override
public void onTabUnselected(TabLayout.Tab tab) {
}
#Override
public void onTabReselected(TabLayout.Tab tab) {
}
});
return view;
}
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
// Note that we are passing childFragmentManager, not FragmentManager
mSectionsPagerAdapter = new SectionsPagerAdapter(getChildFragmentManager(),tabLayout.getTabCount(),tabName);
mViewPager.setAdapter(mSectionsPagerAdapter);
}
#Override
public void onAttach(Context context) {
super.onAttach(context);
if (context instanceof OnFragmentInteractionListener) {
mListener = (OnFragmentInteractionListener) context;
} else {
throw new RuntimeException(context.toString()
+ " must implement OnFragmentInteractionListener");
}
}
#Override
public void onDetach() {
super.onDetach();
mListener = null;
}
#Override
public void onResume() {
super.onResume();
}
public interface OnFragmentInteractionListener {
// TODO: Update argument type and name
void onFragmentInteraction(Uri uri);
}
}
To be able to do this from another Fragment you will need to send a something in a Bundle, such as the position of the page, then do something like this:
HomeFragment fragment = new HomeFragment();
Bundle bundle = new Bundle();
bundle.putInt(YOUR_PAGE, youPage);
fragment.setArguments(bundle);
getSupportFragmentManager().beginTransaction().replace(R.id.container, fragment).addToBackStack("Name").commit();
Then in your HomeFragment:
Bundle bundle = this.getArguments();
if (bundle != null) { viewPager.setCurrentItem(bundle.getInt(YOUR_PAGE) }
Related
Need a little help on how to approach saving state in my single activity application. I looked at a few resources but couldn't quite find one that fits the build. Essentially I have single activity with a Fragment container view that I'm using to swap out fragments as needed. My issue is that as my activity is destroyed when a lifecycle event occurs, the fragment with my view pager is restored but the individual fragments on the tabs are not loaded. I cannot figure out how to save the state properly. Below is my code:
Activity:
public class StartActivity extends AppCompatActivity {
FirebaseAuth mAuth;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_start);
mAuth = FirebaseAuth.getInstance();
if (savedInstanceState == null) {
LoginFragment fragment = new LoginFragment();
getSupportFragmentManager()
.beginTransaction()
.add(R.id.frameLayout, fragment)
.commit();
}
}
#Override
public void onStart() {
super.onStart();
FirebaseUser currentUser = mAuth.getCurrentUser();
if(currentUser != null){
MainActivity mainActivityFrag = new MainActivity();
getSupportFragmentManager()
.beginTransaction()
.add(R.id.frameLayout, mainActivityFrag)
.commit();
}
}
#Override
public void onSaveInstanceState(#NonNull Bundle outState, #NonNull PersistableBundle outPersistentState) {
super.onSaveInstanceState(outState, outPersistentState);
}
#Override
protected void onRestoreInstanceState(#NonNull Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
}
}
Fragment With View Pager:
public class MainActivity extends Fragment {
private FirebaseAuth mAuth;
private SectionsPagerAdapter sectionsPagerAdapter;
private ViewPager viewPager;
private TabLayout tabs;
private Toolbar toolbar;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mAuth = mAuth = FirebaseAuth.getInstance();
}
#Nullable
#Override
public View onCreateView(#NonNull LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.activity_main, container, false);
sectionsPagerAdapter = new SectionsPagerAdapter(getContext(),((AppCompatActivity)getActivity()).getSupportFragmentManager());
viewPager = view.findViewById(R.id.view_pager);
viewPager.setAdapter(sectionsPagerAdapter);
tabs = view.findViewById(R.id.tabs);
tabs.setupWithViewPager(viewPager);
tabs.showContextMenu();
toolbar = view.findViewById(R.id.topAppBar);
((AppCompatActivity)getActivity()).setSupportActionBar(toolbar);
((AppCompatActivity)getActivity()).getSupportActionBar().setDisplayShowTitleEnabled(false);
setHasOptionsMenu(true);
tabs.getTabAt(0).setIcon(R.drawable.home_selector);
tabs.getTabAt(1).setIcon(R.drawable.destination);
tabs.getTabAt(2).setIcon(R.drawable.mail_outline_blk);
tabs.getTabAt(3).setIcon(R.drawable.notification_bell);
return view;
}
#Override
public void onCreateOptionsMenu(#NonNull Menu menu, #NonNull MenuInflater inflater) {
super.onCreateOptionsMenu(menu, inflater);
menu.clear();
inflater.inflate(R.menu.main_menu, menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
super.onOptionsItemSelected(item);
switch (item.getItemId()){
case R.id.logout:
mAuth.signOut();
//navigate to home fragment
LoginFragment fragment = new LoginFragment();
((AppCompatActivity)getActivity()).getSupportFragmentManager()
.beginTransaction()
.replace(R.id.frameLayout, fragment)
.commit();
return true;
default:
return false;
}
}
#Override
public void onResume() {
super.onResume();
}
#Override
public void onSaveInstanceState(#NonNull Bundle outState) {
super.onSaveInstanceState(outState);
}
}
Adapter Code:
public class SectionsPagerAdapter extends FragmentPagerAdapter {
#StringRes
private static final int[] TAB_TITLES = new int[]{R.string.tab_text_1, R.string.tab_text_2, R.string.tab_text_3, R.string.tab_text_4};
private final Context mContext;
public SectionsPagerAdapter(Context context, FragmentManager fm) {
super(fm, BEHAVIOR_RESUME_ONLY_CURRENT_FRAGMENT);
mContext = context;
}
#Override
public Fragment getItem(int position) {
// getItem is called to instantiate the fragment for the given page.
// Return a PlaceholderFragment (defined as a static inner class below).
switch (position){
case 0:
PostFragment postFragment = new PostFragment();
return postFragment;
case 1:
TestFragment userFeedFragmentt = new TestFragment();
return userFeedFragmentt;
default:
TestFragment userFeedFragmenttt = new TestFragment();
return userFeedFragmenttt;
}
}
#Nullable
#Override
public CharSequence getPageTitle(int position) {
return mContext.getResources().getString(TAB_TITLES[position]);
}
#Override
public int getCount() {
// Show 2 total pages.
return 4;
}
}
I have an app that the user can go through different fragments using BottomNavigationView and one of those fragments is a Unity3D application. So when i open the Unity fragment it works but when i open another fragment and open the Unity fragment back it crashes how do i fix this here is my code.
MainActivity.java
public class MainActivity extends AppCompatActivity {
BottomNavigationView mBottomNavigationView;
NavController mNavController;
NavDestination mDestination;
AppBarConfiguration appBarConfiguration;
String tab;
private boolean doubleBackToExitPressedOnce ;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
boolean b = this.requestWindowFeature(Window.FEATURE_NO_TITLE);
this.setContentView(R.layout.activity_main);
ActionBar mActionBar = getSupportActionBar();
mActionBar.setDisplayShowHomeEnabled(false);
mActionBar.setDisplayShowTitleEnabled(false);
LayoutInflater li = LayoutInflater.from(this);
View customView = li.inflate(R.layout.top_menu_custom, null);
mActionBar.setCustomView(customView);
mActionBar.setDisplayShowCustomEnabled(true);
mBottomNavigationView = (BottomNavigationView) findViewById(R.id.nav_view);
ImageButton profileButton = (ImageButton) customView.findViewById(R.id.profile_button);
ImageButton notificationButton = (ImageButton) customView.findViewById(R.id.noti_button);
profileButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
ProfileFragment profileFragment = new ProfileFragment();
getSupportFragmentManager().beginTransaction()
.replace(R.id.nav_host_fragment,profileFragment)
.addToBackStack(tab)
.setReorderingAllowed(true)
.commit();
mBottomNavigationView.setVisibility(View.GONE);
}
});
notificationButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
NotificationFragment notificationFragment = new NotificationFragment();
getSupportFragmentManager().beginTransaction()
.replace(R.id.nav_host_fragment,notificationFragment)
.addToBackStack(tab)
.setReorderingAllowed(true)
.commit();
mBottomNavigationView.setVisibility(View.GONE);
}
});
mBottomNavigationView.setItemIconTintList(null);
mBottomNavigationView.setItemTextColor(ColorStateList.valueOf(getColor(R.color.black)));
mNavController = Navigation.findNavController(this, R.id.nav_host_fragment);
// Passing each menu ID as a set of Ids because each
// menu should be considered as top level destinations.
appBarConfiguration = new AppBarConfiguration.Builder(
R.id.navigation_home, R.id.navigation_dashboard,R.id.navigation_map, R.id.navigation_card,R.id.navigation_deals)
.build();
NavigationUI.setupActionBarWithNavController(this, mNavController, appBarConfiguration);
NavigationUI.setupWithNavController(mBottomNavigationView, mNavController);
mNavController.addOnDestinationChangedListener(new NavController.OnDestinationChangedListener() {
#Override
public void onDestinationChanged(#NonNull NavController controller, #NonNull NavDestination destination, #Nullable Bundle arguments) {
Toast.makeText(getApplicationContext(),"hi",Toast.LENGTH_SHORT).show();
mDestination = mNavController.getCurrentDestination();
tab = mDestination.toString();
}
});
}
#Override
public void onBackPressed() {
//Toast.makeText(getApplicationContext(), mDestination.toString(),Toast.LENGTH_SHORT).show();
if (doubleBackToExitPressedOnce) {
getSupportFragmentManager().popBackStackImmediate();
mNavController.navigate(mDestination.getId());
mBottomNavigationView.setVisibility(View.VISIBLE);
super.onBackPressed();
return;
}
this.doubleBackToExitPressedOnce = true;
Toast.makeText(this, "Please click BACK again to exit", Toast.LENGTH_SHORT).show();
new Handler().postDelayed(new Runnable() {
#Override
public void run() {
doubleBackToExitPressedOnce=false;
}
}, 2000);
}
UnityMapFragment
public class MapFragment extends Fragment{
protected UnityPlayer mUnityPlayer;
FrameLayout frameLayoutForUnity;
public MapFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
mUnityPlayer = new UnityPlayer(getActivity());
View view = inflater.inflate(R.layout.fragment_map, container, false);
this.frameLayoutForUnity = (FrameLayout) view.findViewById(R.id.frameLayoutForUnity);
this.frameLayoutForUnity.addView(mUnityPlayer.getView(),
FrameLayout.LayoutParams.MATCH_PARENT, FrameLayout.LayoutParams.MATCH_PARENT);
mUnityPlayer.requestFocus();
mUnityPlayer.windowFocusChanged(true);
return view;
}
#Override
public void onPause() {
super.onPause();
mUnityPlayer.pause();
}
#Override
public void onResume() {
super.onResume();
mUnityPlayer.resume();
}
// Quit Unity
#Override
public void onDestroy ()
{
mUnityPlayer.quit();
super.onDestroy();
}
So I managed to make a solution for this problem don't know if its good to make it this way or not but what i did was I instantiate the UnityPlayer in my MainActivity and in my fragment i call upon the UnityPlayer that was instatiated in my Main Activity.
MainActivity.java
public class MainActivity extends AppCompatActivity {
public BottomNavigationView mBottomNavigationView;
public NavController mNavController;
public NavDestination mDestination;
AppBarConfiguration appBarConfiguration;
String tab;
int onBackTimes = 0;
public UnityPlayer mUnityPlayer; <----Call unity player
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mUnityPlayer = new UnityPlayer(this); <----UNITY PLAYER HERE
boolean b = this.requestWindowFeature(Window.FEATURE_NO_TITLE);
this.setContentView(R.layout.activity_main);
ActionBar mActionBar = getSupportActionBar();
mActionBar.setDisplayShowHomeEnabled(false);
mActionBar.setDisplayShowTitleEnabled(false);
LayoutInflater li = LayoutInflater.from(this);
View customView = li.inflate(R.layout.top_menu_custom, null);
mActionBar.setCustomView(customView);
mActionBar.setDisplayShowCustomEnabled(true);
mBottomNavigationView = (BottomNavigationView) findViewById(R.id.nav_view);
ImageButton profileButton = (ImageButton) customView.findViewById(R.id.profile_button);
ImageButton notificationButton = (ImageButton) customView.findViewById(R.id.noti_button);
profileButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
ProfileFragment profileFragment = new ProfileFragment();
getSupportFragmentManager().beginTransaction()
.replace(R.id.nav_host_fragment,profileFragment)
.addToBackStack(tab)
.setReorderingAllowed(true)
.commit();
mBottomNavigationView.setVisibility(View.GONE);
}
});
notificationButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
NotificationFragment notificationFragment = new NotificationFragment();
getSupportFragmentManager().beginTransaction()
.replace(R.id.nav_host_fragment,notificationFragment)
.addToBackStack(tab)
.setReorderingAllowed(true)
.commit();
mBottomNavigationView.setVisibility(View.GONE);
}
});
mBottomNavigationView.setItemIconTintList(null);
mBottomNavigationView.setItemTextColor(ColorStateList.valueOf(getColor(R.color.black)));
mNavController = Navigation.findNavController(this, R.id.nav_host_fragment);
// Passing each menu ID as a set of Ids because each
// menu should be considered as top level destinations.
appBarConfiguration = new AppBarConfiguration.Builder(
R.id.navigation_home, R.id.navigation_dashboard,R.id.navigation_map, R.id.navigation_card,R.id.navigation_deals)
.build();
NavigationUI.setupActionBarWithNavController(this, mNavController, appBarConfiguration);
NavigationUI.setupWithNavController(mBottomNavigationView, mNavController);
mNavController.addOnDestinationChangedListener(new NavController.OnDestinationChangedListener() {
#Override
public void onDestinationChanged(#NonNull NavController controller, #NonNull NavDestination destination, #Nullable Bundle arguments) {
mDestination = mNavController.getCurrentDestination();
tab = mDestination.toString();
}
});
}
#Override
public void onBackPressed() {
Toast.makeText(this, "Please click BACK again to exit", Toast.LENGTH_SHORT).show();
onBackTimes +=1;
if(onBackTimes>1){
LoginActivity.close.finish();
finish();
}
else{
getSupportFragmentManager().popBackStackImmediate();
mBottomNavigationView.setVisibility(View.VISIBLE);
super.onBackPressed();
mNavController.navigate(mDestination.getId());
}
new Handler().postDelayed(new Runnable() {
#Override
public void run() {
onBackTimes=0;
}
}, 2000);
}
#Override
protected void onStop() {
super.onStop();
}
//UNITY STUFF OVER HERE
#Override
protected void onPause() {
super.onPause();
mUnityPlayer.pause();
}
#Override protected void onResume()
{
super.onResume();
mUnityPlayer.resume();
}
#Override
protected void onDestroy(){
super.onDestroy();
}
}
UnityMapFragment
public class MapFragment extends Fragment{
private MainActivity mUnityMainActivity;
private UnityPlayer mUnityPlayer;
public MapFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
//this code calls the UNITYPLAYER from MainActivity and return it here
mUnityMainActivity = (MainActivity) getActivity();
View unityPlayViewer = mUnityMainActivity.mUnityPlayer.getView();
mUnityMainActivity.mUnityPlayer.requestFocus();
mUnityMainActivity.mUnityPlayer.windowFocusChanged(true);
return unityPlayViewer;
}
/** FOR UNITY **/
#Override
public void onPause() {
super.onPause();
mUnityMainActivity.mUnityPlayer.pause();
}
// Resume Unity
#Override public void onResume()
{
super.onResume();
mUnityMainActivity.mUnityPlayer.resume();
}
I don't know why i have to include the OnPause, OnResume etc on both file but if one of them doesn't have it it'll crash.
The problem is, a new UnityPlayer is being created every-time we switch to the unity fragment and this crashes the app. So we need to create the UnityPlayer only for the first time or only when the player has been stopped. This works on my side.
In the UnityFragment class, my global variables :
protected UnityPlayer mUnityPlayer;
private View view;
private FrameLayout frameLayoutForUnity;
In onCreate a new UnityPlayer is created, which is called only for the first time :
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mUnityPlayer = new UnityPlayer(getActivity()); // create Unity Player
}
In onCreateView we refresh the view for UnityPlayer :
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
if(mUnityPlayer.getParent() != null){
((ViewGroup)mUnityPlayer.getParent()).removeAllViews();
}
view = inflater.inflate(R.layout.fragment_unity, container, false);
this.frameLayoutForUnity = (FrameLayout) view.findViewById(R.id.unityFragmentLayout);
this.frameLayoutForUnity.addView(mUnityPlayer.getView(),
FrameLayout.LayoutParams.MATCH_PARENT, FrameLayout.LayoutParams.MATCH_PARENT);
mUnityPlayer.requestFocus();
mUnityPlayer.windowFocusChanged(true);
return view;
}
Rest remains same. There could be better solutions than this. Cheers :)
I am trying to pass information from my alert dialog to my second fragment (I am using tabbed activity layout).
I want to pass information from alert dialog to fragment when I click on my ImageView, but my app keep crashing until I implement my interface inside MainActivity.java. My main mission here is to open alert dialog which contains several buttons. When I click first button I want to print "Test br 3" but it does not work inside my Fragment, it only works inside my MainActivity.java where method prints "Test br 2".
My Main Activity
public class MainActivity extends AppCompatActivity implements ExercisesAlertDialog.DataTransfer {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
SectionsPagerAdapter sectionsPagerAdapter = new SectionsPagerAdapter(this, getSupportFragmentManager());
ViewPager viewPager = findViewById(R.id.view_pager);
viewPager.setAdapter(sectionsPagerAdapter);
TabLayout tabs = findViewById(R.id.tabs);
tabs.setupWithViewPager(viewPager);
}
#Override
public void ApplyData() {
System.out.println("Test br 2");
}
My Fragment
public class Frag2 extends Fragment implements ExercisesAlertDialog.DataTransfer {
ImageView plusbtn;
#Nullable
#Override
public View onCreateView(#NonNull LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.frag2, container, false);
plusbtn = (ImageView) v.findViewById(R.id.plusbtn);
plusbtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
ExercisesDialog();
}
});
return v;
}
public void ExercisesDialog()
{
ExercisesAlertDialog exercisesAlertDialog = new ExercisesAlertDialog();
exercisesAlertDialog.show(getFragmentManager(), "Exercises Dialog");
}
#Override
public void ApplyData() {
System.out.println("Test br 3");
}
My Alert Dialog
public class ExercisesAlertDialog extends AppCompatDialogFragment {
ImageButton one, two;
private DataTransfer listener;
public int first;
#Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
final AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
LayoutInflater inflater = getActivity().getLayoutInflater();
View v = inflater.inflate(R.layout.workout_custom_menu, null);
builder.setView(v);
builder.setTitle("Choose your Workout");
builder.setPositiveButton("Cancel", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
dismiss();
}
});
one = (ImageButton) v.findViewById(R.id.first);
two = (ImageButton) v.findViewById(R.id.second);
one.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
first = 1;
if(first ==1)
{
listener.ApplyData();
}
}
});
return builder.create();
}
public interface DataTransfer
{
void ApplyData();
}
#Override
public void onAttach(Context context) {
super.onAttach(context);
try {
listener = (DataTransfer) context;
}
catch (ClassCastException e)
{
throw new ClassCastException(toString() + "Must implement DataTransfer");
}
}
}
I changed getChildFragmentManager() instead of getFragmentManager() in the show() call. Second thing is onAttach() to listener = (DataTransfer) getParentFragment(); instead of context.
I am trying a simple interaction between two fragments in Tabbed activity.
I have a two layouts with TextView, EditText and Button. I am trying to achieve move text from EditText in FragmentOne to the EdidText (or TextView) in Fragment two when the Button from FragmentOne is pressed. But it doesnt works.
During debuging there isnt any problem. App doesnt stop working.
Is something problem in ViewPager or SectionsPagerAdapter?
I have this two fragments.
Fragments One:
public class FragmentOne extends Fragment {
TextView textView;
EditText editText;
Button button;
private OnFragmentOneInteractionListener mListener;
public FragmentOne()
{
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState)
{
View view = inflater.inflate(R.layout.fragment_one, container, false);
editText = (EditText) view.findViewById(R.id.fragOne_txb);
textView = (TextView) view.findViewById(R.id.fragTwo_header);
button = (Button) view.findViewById(R.id.fragOne_btn_to2);
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v)
{
String text = editText.getText().toString();
mListener.onFragmentOneInteraction(text);
}
});
return view;
}
#Override
public void onAttach(Context context) {
super.onAttach(context);
if (context instanceof OnFragmentOneInteractionListener) {
mListener = (OnFragmentOneInteractionListener) context;
} else {
throw new RuntimeException(context.toString()
+ " must implement OnFragmentOneInteractionListener");
}
}
#Override
public void onDetach()
{
super.onDetach();
mListener = null;
}
public interface OnFragmentOneInteractionListener
{
void onFragmentOneInteraction(String string);
}
}
And fragments two:
public class FragmentTwo extends Fragment{
private OnFragmentTwoInteractionListener mListener;
public EditText editText;
public FragmentTwo()
{
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState)
{
View view = inflater.inflate(R.layout.fragment_two, container, false);
editText = (EditText) view.findViewById(R.id.fragTwo_txb);
return view;
}
public void onUpdateEditText(String string)
{
this.editText.setText(string);
}
#Override
public void onAttach(Context context) {
super.onAttach(context);
if (context instanceof OnFragmentTwoInteractionListener) {
mListener = (OnFragmentTwoInteractionListener) context;
} else {
throw new RuntimeException(context.toString()
+ " must implement OnFragmentTwoInteractionListener");
}
}
#Override
public void onDetach()
{
super.onDetach();
mListener = null;
}
public interface OnFragmentTwoInteractionListener
{
void onFragmentTwoInteraction(Uri uri);
}
}
And this is my main activity:
public class MainActivity extends AppCompatActivity
implements FragmentOne.OnFragmentOneInteractionListener,
FragmentTwo.OnFragmentTwoInteractionListener
{
private SectionsPagerAdapter mSectionsPagerAdapter;
private ViewPager mViewPager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());
mViewPager = (ViewPager) findViewById(R.id.container);
mViewPager.setAdapter(mSectionsPagerAdapter);
TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs);
mViewPager.addOnPageChangeListener(
new TabLayout.TabLayoutOnPageChangeListener(tabLayout));
tabLayout.addOnTabSelectedListener(
new TabLayout.ViewPagerOnTabSelectedListener(mViewPager));
}
#Override
public void onFragmentOneInteraction(String string)
{
FragmentTwo fr2 = (FragmentTwo) getSupportFragmentManager().findFragmentById(R.id.fr2);
fr2.onUpdateEditText(string);
}
#Override
public void onFragmentTwoInteraction(Uri uri)
{
}
public class SectionsPagerAdapter extends FragmentPagerAdapter
{
public SectionsPagerAdapter(FragmentManager fm)
{
super(fm);
}
#Override
public Fragment getItem(int position)
{
switch (position)
{
case 0:
FragmentOne fragmentOne = new FragmentOne();
return fragmentOne;
case 1:
FragmentTwo fragmentTwo = new FragmentTwo();
return fragmentTwo;
default:
return null;
}
}
#Override
public int getCount()
{
// Show 2 total pages.
return 2;
}
}
}
I just tried your code and this is the update i did to make it work. Please mark it correct if its what you are looking for
private SectionsPagerAdapter mSectionsPagerAdapter;
private ViewPager mViewPager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());
mViewPager = (ViewPager) findViewById(R.id.container);
mViewPager.setAdapter(mSectionsPagerAdapter);
TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs);
mViewPager.addOnPageChangeListener(
new TabLayout.TabLayoutOnPageChangeListener(tabLayout));
tabLayout.addOnTabSelectedListener(
new TabLayout.ViewPagerOnTabSelectedListener(mViewPager));
}
#Override
public void onFragmentOneInteraction(String string)
{
fragmentTwo.onUpdateEditText(string);
/*FragmentTwo fr2 = (FragmentTwo) getSupportFragmentManager().findFragmentById(R.id.fr2);
fr2.onUpdateEditText(string);*/
}
#Override
public void onFragmentTwoInteraction(Uri uri)
{
}
FragmentTwo fragmentTwo = new FragmentTwo();
public class SectionsPagerAdapter extends FragmentPagerAdapter
{
public SectionsPagerAdapter(FragmentManager fm)
{
super(fm);
}
#Override
public Fragment getItem(int position)
{
switch (position)
{
case 0:
FragmentOne fragmentOne = new FragmentOne();
return fragmentOne;
case 1:
return fragmentTwo;
default:
return null;
}
}
#Override
public int getCount()
{
// Show 2 total pages.
return 2;
}
}
I suggest to use getActivity() instead
if (getActivity() instanceof OnFragmentOneInteractionListener) {
mListener = (OnFragmentOneInteractionListener) getActivity();
} else {
throw new RuntimeException(context.toString()
+ " must implement OnFragmentOneInteractionListener");
}
i have four tabs in the tab bar when i select the contact tab from the tab bar the tab bar is disappeared.i want to show the tab bar when i select the contact tab.
Here is code
TabActivity.java
public class Tab_Activity extends TabActivity
{
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Resources obj_res = getResources();
TabHost tabHost = (TabHost)findViewById(android.R.id.tabhost);
TabSpec m_tab1 = tabHost.newTabSpec("First Tab");
TabSpec m_tab2 = tabHost.newTabSpec("Second Tab");
Intent intent1 = new Intent().setClass(this, Phone.class);
Intent intent3 = new Intent().setClass(this, Settings.class);
Intent intent4 = new Intent().setClass(this, Contact.class);
m_tab4.setIndicator("Tab4");
m_tab4=tabHost.newTabSpec("tab4").setIndicator("", obj_res.getDrawable(R.drawable.pic1)).setContent(intent3);
m_tab5.setIndicator("Tab4");
m_tab5=tabHost.newTabSpec("tab4").setIndicator("", obj_res.getDrawable(R.drawable.pic3)).setContent(intent4);
tabHost.addTab(m_tab2);
tabHost.addTab(m_tab4);
tabHost.addTab(m_tab5);
}}
Contact.java
public class Contact extends Activity
{
protected void onCreate(Bundle savedInstanceState)
{
//this.requestWindowFeature(Window.FEATURE_NO_TITLE);
//this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
super.onCreate(savedInstanceState);
//setContentView(R.layout.contact);
Intent Contacts = new Intent(Intent.ACTION_GET_CONTENT);
Contacts.addFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT);
Contacts.setType(ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE);
startActivityForResult(Contacts, 1);
}}
This is your activity in which u can put how many tab you want to display.
public class GuestListAdminActivity extends FragmentActivity implements
ActionBar.TabListener {
private ViewPager viewPager;
private TabsPagerAdapter mAdapter;
private ActionBar actionBar;
// Tab titles
private String[] tabs = { "Bride", "Groom", "Create Gueset List" };
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_guest_list_admin);
// Initilization
viewPager = (ViewPager) findViewById(R.id.pager);
actionBar = getActionBar();
mAdapter = new TabsPagerAdapter(getSupportFragmentManager());
viewPager.setAdapter(mAdapter);
actionBar.setHomeButtonEnabled(false);
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
getActionBar().setHomeButtonEnabled(true);
// Adding Tabs
for (String tab_name : tabs) {
actionBar.addTab(actionBar.newTab().setText(tab_name)
.setTabListener(this));
}
/**
* on swiping the viewpager make respective tab selected
* */
viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
#Override
public void onPageSelected(int position) {
// on changing the page
// make respected tab selected
actionBar.setSelectedNavigationItem(position);
}
#Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
}
#Override
public void onPageScrollStateChanged(int arg0) {
}
});
}
#Override
public void onTabReselected(Tab tab, FragmentTransaction ft) {
}
#Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
// on tab selected
// show respected fragment view
viewPager.setCurrentItem(tab.getPosition());
}
#Override
public void onTabUnselected(Tab tab, FragmentTransaction ft) {
}
}
This is pager adapter which will show your all fragments.
public class TabsPagerAdapter extends FragmentPagerAdapter {
public TabsPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int index) {
switch (index) {
case 0:
return new BrideGuestList();
case 1:
return new GroomGuestList();
case 2:
return new NewGuestListActivity();
default:
break;
}
return null;
}
#Override
public int getCount() {
// get item count - equal to number of tabs
return 3;
}
}
And make your fragment activity like following
public class BrideGuestList extends android.support.v4.app.Fragment{
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.bride_guest_list, container, false);
return rootView;
}