i'm a beginner trying to apply the idea of having tabbed layout inside a "main" fragment that allows me to navigate to other "secondary fragments" as well, there is a main activity with a button which when clicked will inflate the tabbed fragment inside this activity.
but what i got is this: the tabs are duplicated on just the first fragment for some reason.
here is my code: MainActiviy.java
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void fragny(View view) {
FragmentTransaction ft=getSupportFragmentManager().beginTransaction();
ft.replace(R.id.ma,new labRatFrag());
ft.commit();
}
}
main_activity.xml
<androidx.constraintlayout.widget.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/ma"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World!"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
android:onClick="fragny"
/>
FragmentPagerAdapter
public class FragAdapt extends FragmentPagerAdapter {
private static final String[] TAB_TITLES = new String[]{"test1","test2","test3"};
private final Context mContext;
public FragAdapt(Context context ,FragmentManager fm) {
super(fm);
mContext=context;
}
#NonNull
#Override
public Fragment getItem(int position) {
switch (position){
case 0:
return new labRatFrag();
case 1:
return new labRatFrag2();
case 2:
return new labRatFrag3();
default:
return null;
}
}
#Override
public String getPageTitle(int position) {
return TAB_TITLES[position];
}
#Override
public int getCount() {
return 3;
}
}
my main fragment (labRatFrag.java)
public class labRatFrag extends Fragment {
public labRatFrag() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View v= inflater.inflate(R.layout.fragment_lab_rat, container, false);
FragAdapt fa=new FragAdapt(getContext(),getActivity().getSupportFragmentManager());
ViewPager vp=v.findViewById(R.id.pagery);
vp.setAdapter(fa);
TabLayout tabs = v.findViewById(R.id.toto);
tabs.setupWithViewPager(vp);
return v;
}
}
fragment_lab_rat.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout 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"
>
<com.google.android.material.appbar.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay"
>
<com.google.android.material.tabs.TabLayout
android:id="#+id/toto"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"/>
</com.google.android.material.appbar.AppBarLayout>
<androidx.viewpager.widget.ViewPager
android:id="#+id/pagery"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
/>
</androidx.coordinatorlayout.widget.CoordinatorLayout>
i want to do this in order to apply this idea with bottom navigation or navigation drawer for a future app i'm planning
FragAdapt is for your secondary fragment, right?
if yes, try replacing
FragAdapt fa=new FragAdapt(getContext(),getActivity().getSupportFragmentManager());
with
FragAdapt fa=new FragAdapt(getContext(),getChildFragmentManager());.
It might help. If not, will prepare a demo for you
Related
When I start my app everything is fine except fragment overlapping my tab layout. Switching tab is fine, but it seems that fragment layout cover whole screen instead being under layout. Does anyone know solution ?
Screenshot: https://imgur.com/a/odeKD0W
Hope I didn't forgot to add something, if so, ask me.
Thanks.
ActivityMain
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
TabLayout tabLayout = findViewById(R.id.tabBar);
TabItem tabItem1 = findViewById(R.id.tab1);
TabItem tabItem2 = findViewById(R.id.tab2);
TabItem tabItem3 = findViewById(R.id.tab3);
final ViewPager viewPager = findViewById(R.id.viewPager);
PagerAdapter pagerAdapter = new PagerAdapter(getSupportFragmentManager(), tabLayout.getTabCount());
viewPager.setAdapter(pagerAdapter);
tabLayout.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
#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) {
}
});
viewPager.addOnPageChangeListener(new TabLayout
.TabLayoutOnPageChangeListener(tabLayout));
}
}
PagerAdapter class
public class PagerAdapter extends FragmentPagerAdapter {
private int numOfTabs;
public PagerAdapter (FragmentManager fm, int numOfTabs) {
super (fm);
this.numOfTabs = numOfTabs;
}
#NonNull
#Override
public Fragment getItem(int position) {
switch (position){
case 0:
return new FragmentTab1();
case 1:
return new FragmentTab2();
case 2:
return new FragmentTab3();
default:
return null;
}
}
#Override
public int getCount() {
return numOfTabs;
}
}
Activity_Main xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.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:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<com.google.android.material.tabs.TabLayout
android:id="#+id/tabBar"
android:layout_width="409dp"
android:layout_height="0dp"
android:layout_marginStart="1dp"
android:layout_marginEnd="1dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<com.google.android.material.tabs.TabItem
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/tab1"
android:text="Tab 1" />
<com.google.android.material.tabs.TabItem
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/tab2"
android:text="Tab 2" />
<com.google.android.material.tabs.TabItem
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/tab3"
android:text="Tab 3" />
</com.google.android.material.tabs.TabLayout>
<androidx.viewpager.widget.ViewPager
android:id="#+id/viewPager"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="#id/tabBar" />
</androidx.constraintlayout.widget.ConstraintLayout>
You are using
app:layout_constraintTop_toTopOf="#id/tabBar"
Instead of
app:layout_constraintTop_toBottomOf="#id/tabBar"
The first align the top of the fragment to that of the tablayout and they will overlap. The top of the fragment should instead be constrained to the bottom of the tabbar.
I am trying to use a androidx.recyclerview.widget.RecyclerView inside a Fragment and having a tough time trying to add basic items to it via an adapter. Following is my Fragment:
public class TimelineFragment extends Fragment {
private DataBoundAdapter timelineAdapter;
private View rootView;
#Override
public View onCreateView(
LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState
) {
// Inflate the layout for this fragment
rootView = inflater.inflate(R.layout.fragment_timeline_home, container, false);
initStuff(container);
return rootView;
}
#Override
public void onActivityCreated(#Nullable Bundle savedInstanceState){
super.onActivityCreated(savedInstanceState);
}
public void onViewCreated(#NonNull View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
}
private void initStuff(ViewGroup container) {
ArrayList<FernPost> list = {...};
timelineAdapter = new DataBoundAdapter(list);
RecyclerView recyclerView = rootView.findViewById(R.id.scroll_timeline);
recyclerView.setLayoutManager(new GridLayoutManager(getContext(),2));
recyclerView.setAdapter(timelineAdapter);
timelineAdapter.notifyDataSetChanged();
}
}
This is the fragment xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_height="match_parent"
android:layout_width="match_parent"
android:orientation="vertical">
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="100dp"
android:text="hi there bullshit!!!"/>
<androidx.recyclerview.widget.RecyclerView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/scroll_timeline"
android:scrollbars="vertical"
android:visibility="visible">
</androidx.recyclerview.widget.RecyclerView>
</LinearLayout>
The Main activity layout xml:
<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:tools="http://schemas.android.com/tools"
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"
tools:context=".MainActivity">
<com.google.android.material.appbar.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay">
<androidx.appcompat.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" />
</com.google.android.material.appbar.AppBarLayout>
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="#+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:layout_margin="#dimen/fab_margin"
app:srcCompat="#android:drawable/ic_input_add" />
<fragment
android:id="#+id/timeline_fragment"
android:name="com.blinkfast.fern.TimelineFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.coordinatorlayout.widget.CoordinatorLayout>
here is the adapter code for the recycler view:
public class DataBoundAdapter extends RecyclerView.Adapter<DataBoundViewHolder> {
private List<FernPost> fernPosts;
public DataBoundAdapter(List<FernPost> fernPosts) {
this.fernPosts = fernPosts;
}
#NonNull
#Override
public DataBoundViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View itemLayoutView = LayoutInflater.from(parent.getContext())
.inflate(R.layout.fernpost, null);
return new DataBoundViewHolder(itemLayoutView);
}
#Override
public void onBindViewHolder(#NonNull DataBoundViewHolder holder, int position) {
holder.bind(fernPosts.get(position));
}
#Override
public int getItemCount() {
return fernPosts.size()
}
}
And the view holder:
public class DataBoundViewHolder extends RecyclerView.ViewHolder {
private FernPost post;
private View fernPostView;
public DataBoundViewHolder(#NonNull View itemView) {
super(itemView);
this.fernPostView = itemView;
Log.i(DataBoundViewHolder.class.getName(), "");
}
public void bind(FernPost fernPost){
Log.i(DataBoundViewHolder.class.getName(), "binding");
this.post = fernPost;
}
}
I have spent entire day trying various thing making it work, but nothing has so far. The onCreateViewHolder / onBindViewHolder methods are just not getting called. Not sure what i am doing wrong.
Assuming your fragment (the one holding RecyclerView) is displayed and your list has items before passed to DataBoundAdapter, please use different inflation inside your adapter's onCreateViewHolder:
LayoutInflater.from(parent.getContext()).inflate(viewType, parent, false)
I am trying to create a horizontal slider of images fitted in my imageview in my main layout file. But instead of imageview sliding on touch, the code is moving the whole layout horizontally.
Following is my Java code for sliding:
public class Artprofile extends FragmentActivity {
static final int NUM_ITEMS = 5;
ImageFragmentPagerAdapter imageFragmentPagerAdapter;
ViewPager viewPager;
public static final String[] IMAGE_NAME = {"a", "b", "c", "d", "e",};
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.fragment_page);
imageFragmentPagerAdapter = new ImageFragmentPagerAdapter(getSupportFragmentManager());
viewPager = (ViewPager) findViewById(R.id.pager);
viewPager.setAdapter(imageFragmentPagerAdapter);
}
public static class ImageFragmentPagerAdapter extends FragmentPagerAdapter {
public ImageFragmentPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public int getCount() {
return NUM_ITEMS;
}
#Override
public Fragment getItem(int position) {
SwipeFragment fragment = new SwipeFragment();
return SwipeFragment.newInstance(position);
}
}
public static class SwipeFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View swipeView = inflater.inflate(R.layout.layoutart, container, false);
ImageView imageView = (ImageView) swipeView.findViewById(R.id.image_view1);
Bundle bundle = getArguments();
int position = bundle.getInt("position");
String imageFileName = IMAGE_NAME[position];
int imgResId = getResources().getIdentifier(imageFileName, "drawable", "com.example.user.myapplication1");
imageView.setImageResource(imgResId);
return swipeView;
}
static SwipeFragment newInstance(int position) {
SwipeFragment swipeFragment = new SwipeFragment();
Bundle bundle = new Bundle();
bundle.putInt("position", position);
swipeFragment.setArguments(bundle);
return swipeFragment;
}
}
}
Following is my main layout file:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:background="#drawable/mobileback"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<ImageView android:id="#+id/image_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:maxWidth="150dp"
android:maxHeight="150dp"
android:scaleType="fitCenter"
android:layout_marginRight="50dp"
android:layout_marginTop="30dp"
android:layout_marginLeft="400dp"
android:src="#drawable/profilewindow1"
android:layout_marginEnd="58dp"
android:layout_alignParentTop="true"
android:layout_alignParentEnd="true" />
<FrameLayout
android:layout_width="match_parent"
android:layout_height="330dp"
android:layout_alignParentStart="true"
android:maxWidth="150dp"
android:maxHeight="150dp"
android:layout_below="#+id/image_view"
android:id="#+id/layout_mobile1">
<ImageView
android:id="#+id/image_view1"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
</FrameLayout>
</RelativeLayout>
And this is the Fragment layout used for sliding:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<android.support.v4.view.ViewPager
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent">
</android.support.v4.view.ViewPager>
I dont understand the problem. Kindly help. Thanks in advance
You can use a layout to wrap imageview and then wrap the layout in horizontal scrollview
How can I change the text size of TextView of a fragment. I need it, because text size is small, maybe some users want it to get bigger.
I see, some people advise to use seekbar, or pinch-to-zoom but I can not make it work in a fragment.
Thanks for your help.
my fragment_one.xml
<RelativeLayout 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="org.aultoon.webovietab.fragments.OneFragment"
android:id="#+id/oneFragmentId"
>
<ScrollView
android:id="#+id/scrollView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fadingEdge="none"
android:fillViewport="true"
>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_gravity="top|center"
android:gravity="center"
>
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/tvFragmentOne"
android:text="#string/turkce1"
android:textSize="27sp"
android:textIsSelectable="true"
android:layout_margin="10dp"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
/>
</RelativeLayout>
</ScrollView>
here is the my OneFragment.java
public class OneFragment extends Fragment {
//static WebView mWebview;
public OneFragment() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_one, container, false);
return rootView;
}
}
here is the my activity
public class SimpleTabsActivity extends AppCompatActivity {
private Toolbar toolbar;
private TabLayout tabLayout;
private ViewPager viewPager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_simple_tabs);
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(false);
viewPager = (ViewPager) findViewById(R.id.viewpager);
setupViewPager(viewPager);
tabLayout = (TabLayout) findViewById(R.id.tabs);
tabLayout.setupWithViewPager(viewPager);
}
private void setupViewPager(ViewPager viewPager) {
ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());
adapter.addFragment(new OneFragment(), "tab1");
adapter.addFragment(new TwoFragment(), "tab2");
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);
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()){
case R.id.aboutMenuItem:
Intent i = new Intent(this, About_Activity.class);
startActivity(i);
return true;
default:
return super.onOptionsItemSelected(item);
}
}
}
First, please read the following Q&A about the textsize "sp" unit in android. You should understand why it used sp as unit for textView and your question should be solved.
Should use "sp" instead of "dp" for text sizes
What is the difference between "px", "dp", "dip" and "sp" on Android?
Android sp vs dp texts - what would adjust the 'scale' and what is the philosophy of support
http://www.singhajit.com/tutorial-1-android-ui-desgin-and-styling/
Now, you should know the usage of "sp" unit in TextView since it can be adjusted due to the user accessibility setting. That's mean if your boss cannot see it clearly, he/she can set the font size setting in the devices instead of code change.
If you still need workaround for the programming. Here is the solution
I have added the seekbar in your fragment layout.
Update xml.
<RelativeLayout android:id="#+id/oneFragmentId"
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"
>
<SeekBar
android:id="#+id/seekBar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentStart="true"/>
<ScrollView
android:id="#+id/scrollView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/seekBar"
android:fadingEdge="none"
android:fillViewport="true"
>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="top|center"
android:gravity="center"
android:orientation="vertical"
>
<TextView
android:id="#+id/tvFragmentOne"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_margin="10dp"
android:text="Hello world"
android:textIsSelectable="true"
android:textSize="27sp"
/>
</RelativeLayout>
</ScrollView>
</RelativeLayout>
I have change your textView text as "Hello world" for testing, please change back to your own string resource.
Here is the fragment code.
public class OneFragment extends Fragment {
//static WebView mWebview;
public OneFragment() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_one, container, false);
final TextView tvFragmentOne = (TextView) rootView.findViewById(R.id.tvFragmentOne);
SeekBar lSeekBar = (SeekBar) rootView.findViewById(R.id.seekBar);
lSeekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
#Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
tvFragmentOne.setTextSize(progress);
}
#Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
#Override
public void onStopTrackingTouch(SeekBar seekBar) {
}
});
return rootView;
}
}
If you like to use other control pinch to zoom, up/down button or other control component to change the text size of the textview, you can do it with the following procedures:
Change other widget instead of seekbar
Change the listener for listening the component control change( like OnSeekBarChangeListener )
Reset the textView size
I have a Android fragment containing a ListView, and I have attached an ArrayAdapter to the ListView, but when I insert items into the ArrayAdapter, the ListView only shows the first item.
onCreateView iterates over my Technologies, if they're unlocked, it adds them to the ArrayList shownTechs, but only the first item ever appears
public class TabTechnologyList extends Fragment {
private static final String TAB_NAME = "tab_name";
private ListView techList;
private ArrayList<Technology> shownTechs = new ArrayList<>();
ArrayAdapter<Technology> techListAdapter;
public TabTechnologyList() { }
public static TabTechnologyList newInstance() {
TabTechnologyList fragment = new TabTechnologyList();
return fragment;
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
tabData = Globals.getTabData();
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_technology_list, container, false);
techList = (ListView) view.findViewById(R.id.tabTechListList);
techListAdapter = new ArrayAdapter<>(getActivity().getApplicationContext(), R.layout.layout_techlist_element, shownTechs);
techList.setAdapter(techListAdapter);
for(Technology tech: tabData.getTechnologies()) {
shownTechs.add(tech);
}
//Only the first one is shown on the screen
return view;
}
}
}
When I google for similar issues, people seem to be recreating the ArrayAdapter instead of editing the existing one, but I'm not doing that, and cant' figure out what problem remains. Any suggestions?
fragment_technology_list.xml:
<RelativeLayout 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.tbohne.kittens.front.TabTechnologyList"
>
<ListView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="#+id/tabTechListList" />
</RelativeLayout>
layout_techlist_element.xml
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</TextView>
Addition
I have just realized that this fragment is not filling the parent height, and is only tall enough to show the one entry, as if the fragment height were wrap_content. (I can't scroll it, so it appears as if there's only the one). This makes me think the nesting of fragments may be related, so here's the code that creates the fragment:
public class TabTechnology extends Fragment {
private TabTechnologyList table;
private OnFragmentInteractionListener mListener;
public TabTechnology() {}
public static TabTechnology newInstance(String tabName) {[SNIP]}
#Override public static onAttach(Activity activity) {[SNIP]}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_technology, container, false);
table = TabTechnologyList.newInstance(tabName);
FragmentTransaction transaction = getChildFragmentManager().beginTransaction();
transaction.add(R.id.view_table, table);
transaction.commit();
return view;
}
}
fragment_technology.xml
<LinearLayout 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.tbohne.kittens.front.TabTechnology"
android:orientation="vertical">
<ScrollView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1"
android:id="#+id/view_table"
android:layout_above="#+id/view_details" />
<View android:layout_width="match_parent"
android:layout_height="1px"
android:background="?android:attr/listDivider" />
<ScrollView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1"
android:id="#+id/view_details"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignParentRight="true" />
</LinearLayout>
Putting the Fragment inside the ScrollView was the source of the problem. Simply replaced those with FrameLayout, and suddenly everything magically works. Very strange.
I suspect the problem has something to do with nesting scrollable objects.