I have this issue: when I change fragment the TextView below remain and the result is 2 TextView.
I explain better:
I have one TextView with a string "hello word"
when I change fragment I want to change the entire page and set another TextView but the result is 2 TextVIew
thanks a lot!
activityMain.xml:
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="start">
<FrameLayout
android:id="#+id/content_frame"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<include
layout="#layout/app_bar_main"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
<android.support.design.widget.NavigationView
android:id="#+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:headerLayout="#layout/nav_header_main"
app:menu="#menu/activity_main_drawer"/>
</android.support.v4.widget.DrawerLayout>
fragment.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:gravity="center"
android:background="#5ba4e5"
android:layout_height="match_parent"
android:id="#+id/fragment">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="40px"
android:textColor="#ffffff"
android:layout_gravity="center"
android:id="#+id/fragmentText"
/>
</LinearLayout>
this in MainActivity for change the fragment:
private void selectItem(int id) {
// update the main content by replacing fragments
Fragment fragment = new MyFragment();
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction().replace(R.id.content_frame, fragment).commit();
}
and this is MyFragment.java:
public class MyFragment extends Fragment {
public MyFragment() {
// Empty constructor required for fragment subclasses
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment, container, false);
// String planet = getResources().getStringArray(R.array.planets_array)[i];
String planet = "prova fragment";
int imageId = getResources().getIdentifier(planet.toLowerCase(Locale.getDefault()),
"drawable", getActivity().getPackageName());
((TextView) rootView.findViewById(R.id.fragmentText)).setText(planet);
return rootView;
}
}
i use:
fragmentManager.beginTransaction().replace(R.id.content_frame, fragment).commit();
but content_frame is a FrameLayout and the fragment is a LinearLayout so I change content_frame with the id of a LinearLayout in the content_main.xml and it works.
Related
i use Bottom Navigation View and on a fragment its not work fine the problem is there is no transition its only display the first selected
navigationView.setSelectedItemId(R.id.message_menu_Friend);
my code
public class MessageFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView =inflater.inflate(R.layout.fragment_message, container, false);
BottomNavigationView navigationView = rootView.findViewById(R.id.top_navigation_bar);
navigationView.setOnNavigationItemSelectedListener(topNav);
navigationView.setSelectedItemId(R.id.message_menu_Friend);
getChildFragmentManager().beginTransaction().replace(R.id.hostFragment_M,new FriendFragment()).commit();
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_message, container, false);
}
private BottomNavigationView.OnNavigationItemSelectedListener topNav = new BottomNavigationView.OnNavigationItemSelectedListener() {
#Override
public boolean onNavigationItemSelected(#NonNull MenuItem item) {
Fragment selectedItem = null;
switch (item.getItemId()) {
case R.id.message_menu_message:
selectedItem = new MessagesFragment();
break;
case R.id.message_menu_Friend:
selectedItem = new FriendFragment();
break;
}
assert selectedItem != null;
getChildFragmentManager().beginTransaction().replace(R.id.hostFragment_M,selectedItem).commit();
return true ;
}
};}
Xml file
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
tools:context=".MessageFragment">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<FrameLayout android:layout_marginTop="112dp"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/hostFragment_M">
</FrameLayout>
<EditText
android:id="#+id/editTextTextPersonSearch"
android:layout_width="match_parent"
android:layout_height="56dp"
android:background="#color/White"
android:backgroundTint="#color/White"
android:drawableEnd="#drawable/ic_baseline_search_24"
android:drawablePadding="8dp"
android:ems="10"
android:hint="#string/search"
android:inputType="textPersonName"
android:paddingStart="15dp"
android:paddingEnd="15dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="#+id/top_navigation_bar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/White"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/editTextTextPersonSearch"
app:menu="#menu/message_menu"
/>
</androidx.constraintlayout.widget.ConstraintLayout>
</FrameLayout>
how can i make it display the fragment when i click on the bottom navigation
Remove the line navigationView.setSelectedItemId(R.id.message_menu_Friend);, and also change getChildFragmentManager() to getSupportFragmentManager(). Also, in the onCreate method, just return rootView instead of inflating again.
I've been looking for the cause of this exception in answers for similar issues, and couldn't find what's wrong with my code. I changed the method that instantiates a fragment a few times and got the same exception. Maybe it has something to do with the splash screen. Couldn't find information about that.
Here's the beginning of the MainActivity in which the method for instantiating a fragment is called:
public class MainActivity extends AppCompatActivity {
Context context;
FragmentTransaction ft;
Fragment mlf;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_splash);
File file = new File(path);
if (file.exists()) {
Log.d(TAG, path + " exists");
new DBConnection(MainActivity.this);
if(savedInstanceState == null) {
toMovieListFragment();
}
//...
//...
Here's the method:
private void toMovieListFragment() {
mlf = new MovieListFragment();
ft = getSupportFragmentManager().beginTransaction();
ft.replace(R.id.fragments_ontainer, mlf);
ft.addToBackStack(null); // add to back stack
ft.commit();
}
}
The MainActivity's xml:
<?xml version="1.0" encoding="utf-8"?><android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:id="#+id/fragments_container">
</LinearLayout>
The fragment class:
public class MovieListFragment extends Fragment {
Context context;
TextView listTtl;
RecyclerView rvMovies;
Adapter moviesAdapter;
List<Movie> moviesList;
Fragment mdf;
FragmentTransaction ft;
#Nullable
#Override
public View onCreateView(#NonNull LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
final View rootView = inflater.inflate(R.layout.fragment_list_movies, container, false);
context = getActivity();
listTtl = rootView.findViewById(R.id.moviesListTtlId);
rvMovies = rootView.findViewById(R.id.moviesRVId);
moviesList = new ArrayList<>();
moviesAdapter = new Adapter(context, moviesList);
rvMovies.setAdapter(moviesAdapter);
// setting a layout manager
rvMovies.setLayoutManager(new LinearLayoutManager(context)); // a regular one
Log.i(TAG,"In movieListFragment");
return rootView;
}
}
The fragment class's xml file:
<?xml version="1.0" encoding="utf-8"?><android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="#style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<LinearLayout
android:layout_width="match_parent"
android:orientation="vertical"
android:layout_height="match_parent">
<TextView
android:id="#+id/moviesListTtlId"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="#dimen/dot_height"
android:text="#string/moviesListTitle"
android:textAlignment="center"
android:textColor="#color/colorPrimaryDark"
android:textSize="#dimen/ttlSize" />
<android.support.v7.widget.RecyclerView
android:id="#+id/moviesRVId"
android:layout_margin="#dimen/dimen_10"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
</LinearLayout>
<include layout="#layout/change_name" />
Thanks.
For some reason your main activity layout is called R.layout.activity_splash I believe your intention was for it to be whatever main activity layout is called (the one that has R.id.fragments_container inside).
Like a lot of other people on the stackoverflow, for example:
https://ru.stackoverflow.com/questions/571704/%D0%A0%D0%B0%D0%B7%D0%BD%D1%8B%D0%B9-%D0%BA%D0%BE%D0%BD%D1%82%D0%B5%D0%BD%D1%82-%D0%BD%D0%B0-%D1%81%D1%82%D1%80%D0%B0%D0%BD%D0%B8%D1%86%D0%B0%D1%85-viewpager
I'm trying to create ViewPager with different layouts, but with:
https://github.com/ogaclejapan/SmartTabLayout
Expectation: beautiful ViewPager with 3 tabs, which can switch different layouts/fragments by clicking on the buttons or by swipe.
Reality: beautiful ViewPager with 3 tabs, which are doing nothing.
Looking for your help, thanks.
What I have done in MainActivity class:
public class MainActivity extends AppCompatActivity
{
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
getSupportActionBar().setElevation(0); //toolbar shadow
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
ViewGroup tab = findViewById(R.id.linear_test);
tab.addView(LayoutInflater.from(this).inflate(R.layout.activity_main, tab, false));
ViewPager viewPager = findViewById(R.id.viewpager);
SmartTabLayout viewPagerTab = findViewById(R.id.viewpagertab);
setup(viewPagerTab);
FragmentPagerItems pages = new FragmentPagerItems(this);
pages.add(FragmentPagerItem.of("Вкладка 1", DemoFragment.class));
pages.add(FragmentPagerItem.of("Вкладка 2", DemoFragment.class));
pages.add(FragmentPagerItem.of("Вкладка 3", DemoFragment.class));
FragmentPagerItemAdapter adapter = new FragmentPagerItemAdapter(
getSupportFragmentManager(), pages);
viewPager.setAdapter(adapter);
viewPagerTab.setViewPager(viewPager);
}
public void setup(final SmartTabLayout layout) {
//Do nothing.
}
}
What I have done in my DemoFragment:
public class DemoFragment extends Fragment {
static final String ARGUMENT_PAGE_NUMBER = "arg_page_number";
private int page;
static DemoFragment newInstance(int page) {
DemoFragment pageFragment = new DemoFragment();
Bundle arguments = new Bundle();
arguments.putInt(ARGUMENT_PAGE_NUMBER, page);
pageFragment.setArguments(arguments);
return pageFragment;
}
#Override
public View onCreateView(LayoutInflater inflater, #Nullable ViewGroup container,
#Nullable Bundle savedInstanceState) {
// View view = inflater.inflate(R.layout.activity_main, container, false);
page = getArguments().getInt("someInt", 0);
return inflater.inflate(R.layout.activity_main, container, false);
// return view;
}
#Override
public void onViewCreated(View view, #Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
int position = FragmentPagerItem.getPosition(getArguments());
getItem(position);
}
public Fragment getItem(int position) {
switch (position) {
case 0: // Fragment # 0 - This will show FirstFragment
return DemoFragment.newInstance(1);
case 1: // Fragment # 0 - This will show FirstFragment different title
return DemoFragment.newInstance(2);
case 2: // Fragment # 1 - This will show SecondFragment
return DemoFragment.newInstance(3);
default:
return null;
}
}
}
Here is activity_main.xml:
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#android:color/white">
<LinearLayout
android:id="#+id/linear_test"
android:layout_width="match_parent"
android:layout_height="wrap_content"
tools:ignore="MissingConstraints"
android:background="#color/colorPrimary"
android:orientation="horizontal" >
<com.ogaclejapan.smarttablayout.SmartTabLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/viewpagertab"
android:layout_width="match_parent"
android:layout_height="#dimen/tab_height_large"
app:stl_customTabTextLayoutId="#layout/test_layout"
app:stl_customTabTextViewId="#id/custom_tab_text"
app:stl_distributeEvenly="true"
app:stl_defaultTabTextAllCaps="false"
app:stl_indicatorInterpolation="linear"
app:stl_defaultTabTextColor="#color/white"
app:stl_indicatorColor="#color/colorBlue"
app:stl_underlineColor="#color/colorBlue"
app:stl_defaultTabBackground="#color/colorPrimary"
app:stl_indicatorThickness="3dp"
app:stl_underlineThickness="1dp"
/>
<android.support.v4.view.ViewPager
android:id="#+id/viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#+id/viewpagertab"
/>
</LinearLayout>
<android.support.v7.widget.RecyclerView
android:id="#+id/playlist_recycler"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/linear_test" />
<TextView
android:id="#+id/dl_params"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="10dp"
android:layout_marginTop="10dp"
android:visibility="gone"
android:layout_weight="1"
tools:ignore="MissingConstraints"/>
</android.support.constraint.ConstraintLayout>
And finally test_layout which one is filling those SmartTabLayout:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/tab"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="?attr/selectableItemBackground"
>
<android.support.v4.widget.Space
android:id="#+id/center_anchor"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_centerInParent="true"
/>
<aectann.pr1.TintableImageView
android:id="#+id/custom_tab_icon"
android:layout_width="24dp"
android:layout_height="24dp"
android:layout_above="#id/center_anchor"
android:layout_centerHorizontal="true"
android:scaleType="center"
android:src="#drawable/custom_icon"
/>
<TextView
android:id="#+id/custom_tab_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#id/center_anchor"
android:layout_centerHorizontal="true"
android:layout_marginTop="2dp"
android:maxLines="1"
android:textSize="14sp"
android:textColor="#color/white"
/>
</RelativeLayout>
Any ideas, guys?
I am currently working on adding tabs into my activity. For the same, I am using the Google SlidingTabLayout and SlidingTabStrip.
My fragment xml looks like this:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent" > >
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Large Text"
android:id="#+id/textViewTab" />
</RelativeLayout>
My contents xml looks like this:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:context="com.example.musicisfun.allaboutfootball.MainActivity"
tools:showIn="#layout/activity_main">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<com.example.musicisfun.allaboutfootball.tabs.SlidingTabLayout
android:layout_width="match_parent"
android:id="#+id/tabs"
android:layout_height="wrap_content">
</com.example.musicisfun.allaboutfootball.tabs.SlidingTabLayout>
<android.support.v4.view.ViewPager
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="0dp"
/>
</LinearLayout>
</RelativeLayout>
and my code looks like this:
public static class TabFragment extends Fragment{
public static TabFragment getInstance(int position){
TabFragment tabFragment = new TabFragment();
Bundle bundle = new Bundle();
bundle.putInt("site",position);
tabFragment.setArguments(bundle);
return tabFragment;
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View layout = inflater.inflate(R.layout.fragment_tab,container,false);
TextView textViewTab = (TextView) layout.findViewById(R.id.textViewTab);
Bundle bundle = getArguments();
if (bundle!=null){
textViewTab.setText("Current Tab is" + bundle.getInt("site"));
}
return layout;
}
}
My fragment adaptor looks like this:
class TabPagerAdaptor extends FragmentPagerAdapter{
String[] tab_names;
public TabPagerAdaptor(FragmentManager fm) {
super(fm);
tab_names=getResources().getStringArray(R.array.feed_names);
}
#Override
public Fragment getItem(int position) {
TabFragment tabFragment = TabFragment.getInstance(position);
return tabFragment;
}
#Override
public CharSequence getPageTitle(int position) {
return tab_names[position];
}
#Override
public int getCount() {
return 2;
}
}
and this is how i am invoking the tabs:
mViewPager= (ViewPager) findViewById(R.id.pager);
mViewPager.setAdapter(new TabPagerAdaptor(getSupportFragmentManager()));
mTabs = (SlidingTabLayout) findViewById(R.id.tabs);
mTabs.setViewPager(mViewPager);
But when I run the code, I can't find the textview being shown even though two tabs are working fine.
You cannot view your textView because the height of the ViewPager is 0dp in your xml -
<android.support.v4.view.ViewPager
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="0dp"
/>
you have to change that to either wrap_content or match_parent-
<android.support.v4.view.ViewPager
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
Also, Your LinearLayout's orientation is horizontal and the width of SlidingTabLayout is match_parent. SlidingTabLayout is occupying whole screen width leaving no room to display Viewpager.
Your LinearLayout's orientation should be vertical not horizontal
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<com.example.musicisfun.allaboutfootball.tabs.SlidingTabLayout
android:layout_width="match_parent"
android:id="#+id/tabs"
android:layout_height="wrap_content">
</com.example.musicisfun.allaboutfootball.tabs.SlidingTabLayout>
<android.support.v4.view.ViewPager
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
</LinearLayout>
so I know there are a few topics around here that ask about this but none seemed to be the cause of my issue. I have an ActionBarActivity that is going to be switching between a few different fragments, but I'm having a problem getting one of the fragments to show up. The activity does show a fragment when it is first loaded and does that fine. Here is the code that is setting up the initial fragment with the method to switch between fragments that I'm using.
#Override
protected void onCreate(final Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_container);
final ActionBar actionBar = getSupportActionBar();
actionBar.setTitle("");
if (savedInstanceState == null) navigateTo(START_SCREEN);
}
public void navigateTo(int sectionNumber, Serializable objectParam) {
Fragment fragment = null;
switch (sectionNumber) {
case START_SCREEN:
fragment = createStartScreenFragment(); //returns an instance of the class for this fragment
break;
case SCREEN_TWO:
fragment = createSecondScreenFragment(); //returns an instance of the class for this fragment
break;
}
if (fragment == null) return;
FragmentManager fm = getSupportFragmentManager();
FragmentTransaction trans = fm.beginTransaction();
trans.add(R.id.activity_container, fragment, fragment.getTag());
trans.commit();
trans.show(fragment);
}
activity_containers.xml
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:id="#+id/activity_container"
android:layout_width="match_parent"
android:layout_height="match_parent">
</FrameLayout>
The first fragment that loads successfuly
<GridLayout
android:id="#+id/fragment_start_screen"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.android.Activity">
<TextView
android:id="#+id/text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:clickable="true"
/>
...
</GridLayout>
And here is the fragment xml that isn't showing up
<TextView android:id="#+id/section_label" android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<ListView
android:id="#+id/list"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:scrollbars="vertical"
android:fadingEdge="vertical"
android:cacheColorHint="#00000000"
android:fastScrollEnabled="true"
android:padding="2dp">
</ListView>
And here is the misbehaving fragments relevant code:
public class SecondFragment extends Fragment {
public final static int SECTION_NUMBER = 1;
private String mTag = "TAG";
private ParentActivity parentActivity;
public SecondFragment() {
}
public static fragment newInstance() {
SecondFragment fragment = new SecondFragment();
Bundle args = new Bundle();
fragment.setArguments(args);
return fragment;
}
#Override
public void onAttach(final Activity activity) {
super.onAttach(activity);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
parentActivity = (ParentActivity) getActivity();
View rootView = inflater.inflate(R.layout.fragment_second_fragment, container, false);
ListView list = (ListView) rootView.findViewById(R.id.list);
return super.onCreateView(inflater, container, savedInstanceState);
}
}
The biggest problem I'm having here is that there is no error message shown. The text view in the first fragment is supposed to trigger the second fragment to show up on the screen. This used to work when I had that fragment as a DialogFragment and just called .show() on an instance of it. I need it to be a regular fragment now and it doesn't show up. There's no error message that I can see, though debugging it does show it running through all of my code successfully and it looks like its properly inflating the view.
So what could I be missing here that is preventing the fragment from displaying?
Your layout
<TextView android:id="#+id/section_label" android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<ListView
android:id="#+id/list"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:scrollbars="vertical"
android:fadingEdge="vertical"
android:cacheColorHint="#00000000"
android:fastScrollEnabled="true"
android:padding="2dp">
</ListView>
Should be within a ViewGroup
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<TextView android:id="#+id/section_label" android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<ListView
android:id="#+id/list"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:scrollbars="vertical"
android:fadingEdge="vertical"
android:cacheColorHint="#00000000"
android:fastScrollEnabled="true"
android:padding="2dp">
</ListView>
</LinearLayout>
And you should return rootView in onCreateView().
Also, you might need to use replace method of Fragment Manager to replace one fragment with another, instead of add.