Show hide fragment in android

Question

I am developing application which contains 2 fragments and i want to show hide according to my need  Following code has simple example of my problem   This simple Fragmentactivity contains 1 button and one listfragment   This simple example works flawless  but i am not satisfied with show hide fragment  If you remove layout setVisibility View GONE   from the code then ft hide f   will not hide fragment  In fact we are not hiding fragment we are hiding container    My Question is  IS this a way to show hide fragments  If not then please explain with tested example How to hide and show Fragments because lots of people are facing this problem    public class MainActivity extends FragmentActivity implements OnClickListener            Fragment1 f          Button b          LinearLayout layout          Fragment myf           Override         public void onCreate Bundle savedInstanceState               super onCreate savedInstanceState               setContentView R layout activity main               b    Button  findViewById R id button1               layout    LinearLayout  findViewById R id ll               f   new Fragment1                        Override         public void onClick View v                 FragmentTransaction ft   getSupportFragmentManager   beginTransaction                ft setCustomAnimations android R animator fade in  android R animator fade out                if  f isHidden                      ft show f                   layout setVisibility View VISIBLE                   b setText  Hide                  else                   ft hide f                   b setText  Show                    layout setVisibility View GONE                             ft commit                   TODO Auto-generated method stub

User · Answer

public void showHideFragment final Fragment fragment        FragmentTransaction ft   getFragmentManager   beginTransaction        ft setCustomAnimations android R animator fade in                      android R animator fade out        if  fragment isHidden              ft show fragment           Log d  hidden   Show          else           ft hide fragment           Log d  Shown   Hide                                       ft commit

User · Answer

I may be way way too late but it could help someone in the future  This answer is a modification to mangu23 answer I only added a for loop to avoid repetition and to easily add more fragments without boilerplate code     We first need a list of the fragments that should be displayed    public class MainActivity extends AppCompatActivity                List lt Fragment gt  fragmentList   new ArrayList lt  gt         Then we need to fill it with our fragments     Override protected void onCreate Bundle savedInstanceState                  HomeFragment homeFragment   new HomeFragment        MessagesFragment messagesFragment   new MessagesFragment        UserFragment userFragment   new UserFragment        FavoriteFragment favoriteFragment   new FavoriteFragment        MapFragment mapFragment   new MapFragment         fragmentList add homeFragment       fragmentList add messagesFragment       fragmentList add userFragment       fragmentList add favoriteFragment       fragmentList add mapFragment       And we need a way to know which fragment were selected from the list  so we need getFragmentIndex function    private int getFragmentIndex Fragment fragment        int index   -1      for  int i   0  i  lt  fragmentList size    i              if  fragment hashCode      fragmentList get i  hashCode                 return i                      return index      And finally  the displayFragment method will like this     private void displayFragment Fragment fragment            int index   getFragmentIndex fragment           FragmentTransaction transaction   getSupportFragmentManager   beginTransaction            if  fragment isAdded         if the fragment is already in container             transaction show fragment             else      fragment needs to be added to frame container             transaction add R id placeholder  fragment                        hiding the other fragments         for  int i   0  i  lt  fragmentList size    i                  if  fragmentList get i  isAdded    amp  amp  i    index                    transaction hide fragmentList get i                                    transaction commit            In this way  we can call displayFragment homeFragment  for example  This will automatically show the HomeFragment and hide any other fragment in the list  This solution allows you to append more fragments to the fragmentList without having to repeat the if statements in the old displayFragment version  I hope someone will find this useful

User · Answer

From my code  comparing to above solution  the simplest way is to define a layout which contains the fragment  then you could hide or unhide the fragment by controlling the layout attribute which is align with the general way of view  No additional code needed in this case and the additional deployment attributes of the fragment could be moved to the outer layout    lt LinearLayout style   style StHorizontalLinearView       gt        lt fragment         android layout width  match parent          android layout height  390dp          android layout alignParentTop  true            gt    lt  LinearLayout gt

User · Answer

Hi you do it by using this approach  all fragments will remain in the container once added initially and then we are simply revealing the desired fragment and hiding the others within the container       Within an activity private FragmentA fragmentA  private FragmentB fragmentB  private FragmentC fragmentC    Override protected void onCreate Bundle savedInstanceState        super onCreate savedInstanceState       setContentView R layout activity main       if  savedInstanceState    null            fragmentA   FragmentA newInstance  foo            fragmentB   FragmentB newInstance  bar            fragmentC   FragmentC newInstance  baz                 Replace the switch method protected void displayFragmentA         FragmentTransaction ft   getSupportFragmentManager   beginTransaction        if  fragmentA isAdded         if the fragment is already in container         ft show fragmentA         else      fragment needs to be added to frame container         ft add R id flContainer  fragmentA   A                 Hide fragment B     if  fragmentB isAdded      ft hide fragmentB            Hide fragment C     if  fragmentC isAdded      ft hide fragmentC            Commit changes     ft commit        Please see https   github com codepath android guides wiki Creating-and-Using-Fragments for more info  I hope I get to help anyone  Even if it this is an old question

User · Answer

This worked for me  FragmentTransaction ft   getSupportFragmentManager   beginTransaction            if tag equalsIgnoreCase  dashboard                  DashboardFragment dashboardFragment    DashboardFragment                      fragmentManager findFragmentByTag  dashboard                if dashboardFragment  null  ft show dashboardFragment                ShowcaseFragment showcaseFragment    ShowcaseFragment                      fragmentManager findFragmentByTag  showcase                if showcaseFragment  null  ft hide showcaseFragment              else if tag equalsIgnoreCase  showcase                 DashboardFragment dashboardFragment    DashboardFragment                      fragmentManager findFragmentByTag  dashboard                if dashboardFragment  null  ft hide dashboardFragment                ShowcaseFragment showcaseFragment    ShowcaseFragment                      fragmentManager findFragmentByTag  showcase                if showcaseFragment  null  ft show showcaseFragment                      ft commit

User · Answer

final Fragment fragment1   new fragment1    final Fragment fragment2   new fragment2    final FragmentManager fm   getSupportFragmentManager    Fragment active   fragment1    In onCreate  after setContentView  i hid two fragments and committed them to the fragment manager  but i didn t hide the first fragment that will serve as home   fm beginTransaction   add R id main container  fragment2   2   hide fragment2  commit    fm beginTransaction   add R id main container fragment1   1   commit      Override     public void onClick View v            Fragment another   fragment1           if active  fragment1             another   fragment2                         fm beginTransaction   hide active  show another  commit                active   another      Ref   https   medium com  oluwabukunmi aluko bottom-navigation-view-with-fragments-a074bfd08711

User · Answer

the answers here are correct and i liked  Jyo the Whiff idea of a show and hide fragment implementation except the way he has it currently would hide the fragment on the first run so i added a slight change in that i added the isAdded check and show the fragment if its not already  public void showHideCardPreview int id        FragmentManager fm   getSupportFragmentManager        Bundle b   new Bundle        b putInt Constants CARD  id       cardPreviewFragment setArguments b       FragmentTransaction ft   fm beginTransaction            setCustomAnimations android R anim fade in  android R anim fade out       if   cardPreviewFragment isAdded             ft add R id full screen container  cardPreviewFragment           ft show cardPreviewFragment         else           if  cardPreviewFragment isHidden                  Log d TAG                       show                ft show cardPreviewFragment             else               Log d TAG                       hide                ft hide cardPreviewFragment                        ft commit

User · Answer

In addittion  you can do in a Fragment  for example when getting server data failed     getView   setVisibility View GONE

User · Answer

Don t mess with the visibility flags of the container - FragmentTransaction hide show does that internally for you   So the correct way to do this is   FragmentManager fm   getFragmentManager    fm beginTransaction              setCustomAnimations android R animator fade in  android R animator fade out             show somefrag             commit        OR if you are using android support v4 app Fragment   FragmentManager fm   getSupportFragmentManager     fm beginTransaction              setCustomAnimations android R anim fade in  android R anim fade out             show somefrag             commit

User · Answer

Try this    MapFragment mapFragment    MapFragment getFragmentManager   findFragmentById R id mapview   mapFragment getView   setVisibility View GONE

[android] Show hide fragment in android

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