I have activity where I have created a viewpager that contains two fragments. I need to get a reference to the existing fragment or it's view, in the activity to refresh the list from the fragment if necessary. I was looking for a solution for two days, but found nothing on this occasion.
So here is my adapter
public class SearchPagerAdapter extends FragmentStatePagerAdapter {
CharSequence Titles[];
int NumbOfTabs;
public SearchPagerAdapter(FragmentManager fm,CharSequence mTitles[], int mNumbOfTabsumb) {
super(fm);
this.Titles = mTitles;
this.NumbOfTabs = mNumbOfTabsumb;
}
#Override
public Fragment getItem(int position) {
if(position == 0)
{
FragmentAyahSearch tab1 = new FragmentAyahSearch();
return tab1;
}
else
{
FragmentSurahList tab2 = new FragmentSurahList();
return tab2;
}
}
#Override
public void destroyItem(ViewGroup container, int position, Object object) {
super.destroyItem(container, position, object);
}
#Override
public CharSequence getPageTitle(int position) {
return Titles[position];
}
#Override
public int getCount() {
return NumbOfTabs;
}
}
below, I create a viewpager and adapter in MainActivity
searchAdapter = new SearchPagerAdapter(getSupportFragmentManager(), searchTitles, Numboftabs);
pager.setAdapter(searchAdapter);
tabs.setViewPager(pager);
I hope you will help me, because I'm losing my mind over this.
I would suggest maintain a list like
private List<Fragment> frag = new ArrayList<Fragment>();
then
public class SearchPagerAdapter extends FragmentStatePagerAdapter {
CharSequence Titles[];
int NumbOfTabs;
public SearchPagerAdapter(FragmentManager fm,CharSequence mTitles[], int mNumbOfTabsumb) {
super(fm);
this.Titles = mTitles;
this.NumbOfTabs = mNumbOfTabsumb;
}
#Override
public Fragment getItem(int position)
{
Fragment fragment = frag.get(position);
if(fragment == null )
{
if (position == 0)
{
fragment = new FragmentAyahSearch();
}
else
{
fragment = new FragmentSurahList();
}
}
return fragment;
}
#Override
public CharSequence getPageTitle(int position) {
return Titles[position];
}
#Override
public int getCount() {
return frag.size();
}
now if you want the reference of any fragment
just call , frag.get(<position>) will return you desire frgament
Related
I have two fragment in one activity, and I need to know how to just hide the second fragment and leave the firs one
So, i want to hide PerfilDatosFragmen();, but i also need to keep "2" in return statement. how can i do that?
public class ViewPagerAdapter extends FragmentStatePagerAdapter {
public ViewPagerAdapter(FragmentManager fragmentManager) {
super(fragmentManager);
}
String[] encabezado = {"Tarjeta", "Datos"};
#Override
public Fragment getItem(int position) {
switch (position) {
case 0:
return new PerfilTarjetaFragment();
case 1:
return new PerfilDatosFragmen();
}
return null;
}
#Override
public int getCount() {
System.out.println(vacio);
// int vacio = getIntent().getExtras().getInt("Acompañante");
/* if(vacio.equals("1")){
a= 1;
}else{
a= 2;
}*/
return 2;
}
It's very simple. PagerAdapter.getCount() is defined the count of your fragments. You always return 2. The best solution is:
public class ViewPagerAdapter extends FragmentStatePagerAdapter {
private final List<Fragment> fragments = new ArrayList<>();
public ViewPagerAdapter(FragmentManager fragmentManager) {
super(fragmentManager);
fragments.add(new PerfilTarjetaFragment());
fragments.add(new PerfilDatosFragmen());
}
String[] encabezado = {"Tarjeta", "Datos"};
#Override
public Fragment getItem(int position) {
return fragments.get(position);
}
#Override
public int getCount() {
return fragments.size();
}
I am calling ViewPager(Fragment C) from a ListView(Fragment A). But this only works once. If I move back to my list and select another item , it doesnot move into the listview. It just shows a blank layout of fragment c.
Below is the code for Fragment A:
public class FragmentA extends Fragment implements AdapterView.OnItemClickListener{
ListView list;
Communicator communicator;
ArrayList<Book> book_a;
ArrayList<String> book_titles;
#Nullable
#Override
public View onCreateView(#NonNull LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
View view= inflater.inflate(R.layout.fragment_a,container,false);
savedInstanceState = getArguments();
if (getArguments() != null) {
// savedInstanceState = getArguments();
book_a = (ArrayList<Book>) getArguments().getSerializable("bookarray");
book_titles = getList(book_a);
//Log.d("Frag_a:Title",book_a.get(5).getTitle());
list= (ListView) view.findViewById(R.id.listview);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(),android.R.layout.simple_list_item_1,book_titles);
list.setAdapter(adapter);
list.setOnItemClickListener(this);
}
return view;
}
public ArrayList<String> getList(ArrayList<Book> book2){
ArrayList<String> list_titles = new ArrayList<String>();
int size = book2.size();
for(int i=0;i<size;i++){
Book object;
object = book2.get(i);
list_titles.add(object.title);
}
return list_titles;
}
public void setCommunicator(Communicator communicator)
{
this.communicator = communicator;
}
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
communicator.respond(position);
}
public interface Communicator{
public void respond(int index);
}
#Override
public void onAttach(Context context) {
super.onAttach(context);
if(context instanceof Communicator){
communicator = (Communicator) context;
} else {
throw new RuntimeException(context.toString()+"must implement Communicator");
}
}
#Override
public void onDetach() {
super.onDetach();
communicator = null;
}
}
Below is the code for MainActivity:
public class MainActivity extends AppCompatActivity implements FragmentA.Communicator{
FragmentB f2;
ArrayList<Book> b = new ArrayList<Book>();
FragmentManager manager;
static int flag = 0;
static String search="great";
SearchView sv ;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
sv = (SearchView) findViewById(R.id.searchView);
sv.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
#Override
public boolean onQueryTextSubmit(String query) {
flag = 1;
search = query;
getBooks();
return false;
}
#Override
public boolean onQueryTextChange(String newText) {
getBooks();
return false;
}
});
getBooks();
/*
manager = getSupportFragmentManager();
f1 = (FragmentA) manager.findFragmentById(R.id.fragment);
f1.setCommunicator(this);*/
}
#Override
public void respond(int index) {
f2 = (FragmentB) manager.findFragmentById(R.id.fragment2);
if(f2!=null && f2.isVisible())
{
f2.changeData(index);
}
else
{
Bundle bundle = new Bundle();
bundle.putInt("index", index);
bundle.putSerializable("bookarray",(ArrayList<Book>)b);
Fragment newFragment = new FragmentC();
newFragment.setArguments(bundle);
FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
transaction.replace(R.id.fragment, newFragment);
transaction.addToBackStack(null);
transaction.commit();
}
}
public void afterGetBooks(ArrayList<Book> bks) {
for (Book h : bks) {
b.add(h);
}
manager = getSupportFragmentManager();
Bundle args = new Bundle();
args.putSerializable("bookarray",(ArrayList<Book>)bks);
FragmentA f1 = new FragmentA();
f1.setArguments(args);
FragmentTransaction transaction = manager.beginTransaction();
transaction.replace(R.id.fragment,f1);
transaction.addToBackStack(null);
transaction.commit();
f1.setCommunicator(this);
}
private void getBooks(){
String url;
if(flag==0){
url = "https://kamorris.com/lab/audlib/booksearch.php/";}
else{
url = "https://kamorris.com/lab/audlib/booksearch.php?search=" + search;
flag=0;
}
//ArrayList<Book> boo;
Retrofit retrofit = new Retrofit.Builder().baseUrl("https://kamorris.com/lab/audlib/booksearch.php/").addConverterFactory(GsonConverterFactory.create()).build();
Book.API api = retrofit.create(Book.API.class);
Call<ArrayList<Book>> call = api.getBooks(url);
call.enqueue(new Callback<ArrayList<Book>>() {
#Override
public void onResponse(Call<ArrayList<Book>> call, Response<ArrayList<Book>> response) {
ArrayList<Book> Books = response.body();
for(Book h: Books){
Log.d("Retro-Title",h.getTitle());
//b.add(h);
}
afterGetBooks(Books);
}
#Override
public void onFailure(Call<ArrayList<Book>> call, Throwable t) {
Toast.makeText(getApplicationContext(),t.getMessage(),Toast.LENGTH_SHORT).show();
}
});
}
Below is the code for Fragment C:
public class FragmentC extends Fragment {
ViewPager vp;
static int list_pos;
FragmentPagerAdapter adapterViewPager;
public static ArrayList<Book> book_c;
#Nullable
#Override
public View onCreateView(#NonNull LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_c,container,false);
if(getArguments()!= null){
book_c = (ArrayList<Book>) getArguments().getSerializable("bookarray");
list_pos = getArguments().getInt("index");
}
vp = (ViewPager) view.findViewById(R.id.viewpager);
adapterViewPager = new MyPagerAdapter(getFragmentManager());
vp.setAdapter(adapterViewPager);
return view;
}
public static class MyPagerAdapter extends FragmentPagerAdapter {
private static int NUM_ITEMS = 11;
public MyPagerAdapter(FragmentManager fragmentManager) {
super(fragmentManager);
}
// Returns total number of pages
#Override
public int getCount() {
return NUM_ITEMS;
}
// Returns the fragment to display for that page
#Override
public Fragment getItem(int position) {
switch (list_pos) {
case 0: // Fragment # 0 - This will show FirstFragment
list_pos = position;
return FragmentB.newInstance(book_c,0);
case 1: // Fragment # 0 - This will show FirstFragment different title
list_pos = position;
return FragmentB.newInstance(book_c,1);
case 2: // Fragment # 1 - This will show SecondFragment
list_pos = position;
return FragmentB.newInstance(book_c,2);
case 3: list_pos = position;
return FragmentB.newInstance(book_c,3);
case 4:list_pos = position;
return FragmentB.newInstance(book_c,4);
case 5:list_pos = position;
return FragmentB.newInstance(book_c,5);
case 6:list_pos = position;
return FragmentB.newInstance(book_c,6);
case 7:list_pos = position;
return FragmentB.newInstance(book_c,7);
case 8:list_pos = position;
return FragmentB.newInstance(book_c,8);
case 9:list_pos = position;
return FragmentB.newInstance(book_c,9);
default:
return null;
}
}
// Returns the page title for the top indicator
#Override
public CharSequence getPageTitle(int position) {
return "Page " + position;
}
}
}
Also is there a way, where I can start my viewpager from the description of the listitem which I selected.
Also Fragment B is just a text view holder.
I tried to see the control flow with the debugger. But when I try it that way these lines in Fragment C are not working ..
{
book_c = (ArrayList<Book>) getArguments().getSerializable("bookarray");
list_pos = getArguments().getInt("index");
}
vp = (ViewPager) view.findViewById(R.id.viewpager);
adapterViewPager = new MyPagerAdapter(getFragmentManager());
vp.setAdapter(adapterViewPager);
Your fragment has not been destroyed and therefore when it is brought back, onCreateView is not being called. Instead override setUserVisibleHint.
#Override
public void setUserVisibleHint(boolean isVisibleToUser) {
super.setUserVisibleHint(isVisibleToUser);
if (isVisibleToUser) {
// This is true when your fragment is visible, write code to populate view here
} else {
// This is true when your fragment is hidden.
}
}
The solution i found is to change the Fragment Manager
adapterViewPager = new MyPagerAdapter(getFragmentManager());
to
adapterViewPager = new MyPagerAdapter(getChildFragmentManager());
I am creating an application with dynamic tabs. I created tabs are able to add tabs by clicking a button and are able to remove from the back. But when I tried to remove the first tab, it is removed while after removing the first tab and tried to delete the last tab it is force closing with out-of-bounds exception.
I figure out the issue. Suppose there are 4 TABS and when I tried to delete the first tab 0th position tab (TAB 1) is deleted, now when I tried to delete the last tab say now the 4th TAB tab(now Supposedly 2nd position) it crashes as when I tried to log the position on deleting it shows the position as 3rd position.
ALl the deleting is done from viewPage adapter. and the code is :
public class ViewPagerAdapter extends FragmentStatePagerAdapter {
private final ArrayList<Fragment> mFragmentList = new ArrayList<>();
private final ArrayList<String> mFragmentTitleList = new ArrayList<>();
Context context;
ViewPager viewPager;
TabLayout tabLayout;
int selectedTabPosition;
private boolean doNotifyDataSetChangedOnce = false;
public ViewPagerAdapter(FragmentManager manager, Context context, ViewPager viewPager,
TabLayout tabLayout) {
super(manager);
this.context = context;
this.viewPager = viewPager;
this.tabLayout = tabLayout;
}
#Override
public Fragment getItem(int position) {
return mFragmentList.get(position);
}
#Override
public int getCount() {
if (doNotifyDataSetChangedOnce) {
doNotifyDataSetChangedOnce = false;
notifyDataSetChanged();
}
return mFragmentList.size();
}
public void addFrag(Fragment fragment, String title) {
mFragmentList.add(fragment);
mFragmentTitleList.add(title);
}
public void removeFrag(int position) {
Log.e("REMOVING POSITION ",String.valueOf(position));
Fragment fragment = mFragmentList.get(position);
mFragmentList.remove(fragment);
mFragmentTitleList.remove(position);
Log.e("mFragmentList_REMOVE",String.valueOf(mFragmentList.size()));
Log.e("TitleList_REMOVE",String.valueOf(mFragmentTitleList.size()));
removeTab(position);
//destroyFragmentView(viewPager, position, fragment);
notifyDataSetChanged();
}
public View getTabView(final int position) {
Log.e("mFragmentList",String.valueOf(mFragmentList.size()));
Log.e("TitleList",String.valueOf(mFragmentTitleList.size()));
View view = LayoutInflater.from(context).inflate(R.layout.custom_tab_item, null);
TextView tabItemName = (TextView) view.findViewById(R.id.textViewTabItemName);
CircleImageView tabItemAvatar =
(CircleImageView) view.findViewById(R.id.imageViewTabItemAvatar);
ImageButton remove = (ImageButton) view.findViewById(R.id.imageButtonRemove);
Log.e("getCount()-MAIN",String.valueOf(getCount()));
if(getCount() == 1){
remove.setVisibility(View.INVISIBLE);
}
else{
remove.setVisibility(View.VISIBLE);
}
ImageButton add = (ImageButton) view.findViewById(R.id.imageButtonAdd);
remove.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Log.d("Remove", "Remove");
if(getCount() != 1){
removeFrag(position);
}
else{
// Toast.makeText("Atleast One Tab is requied")
}
}
});
add.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Log.e("getCount()-ADD",String.valueOf(getCount()));
View view = LayoutInflater.from(context).inflate(R.layout.custom_tab_item, null);
ImageButton remove = (ImageButton) view.findViewById(R.id.imageButtonRemove);
if(getCount() == 1){
remove.setVisibility(View.INVISIBLE);
}
else{
remove.setVisibility(View.VISIBLE);
}
Bundle bundle = new Bundle();
bundle.putString("data", "POS"+position);
FragmentChild fragmentChild = new FragmentChild();
fragmentChild.setArguments(bundle);
addFrag(fragmentChild, "POS"+position);
notifyDataSetChanged();
if (getCount() > 0) tabLayout.setupWithViewPager(viewPager);
viewPager.setCurrentItem(getCount() - 1);
setupTabLayout();
}
});
tabItemName.setText(mFragmentTitleList.get(position));
tabItemName.setTextColor(context.getResources().getColor(android.R.color.background_light));
tabItemAvatar.setImageResource(R.drawable.boy);
return view;
}
public void setupTabLayout() {
selectedTabPosition = viewPager.getCurrentItem();
for (int i = 0; i < tabLayout.getTabCount(); i++) {
tabLayout.getTabAt(i).setCustomView(getTabView(i));
}
}
public void destroyFragmentView(ViewGroup container, int position, Object object) {
FragmentManager manager = ((Fragment) object).getFragmentManager();
FragmentTransaction trans = manager.beginTransaction();
trans.remove((Fragment) object);
trans.commit();
notifyDataSetChanged();
}
public void removeTab(int position) {
if (tabLayout.getChildCount() > 0 && tabLayout!=null) {
tabLayout.removeTabAt(position);
}
viewPager.setAdapter(this);
notifyDataSetChanged();
}
#Override
public int getItemPosition(Object object) {
return POSITION_NONE;
}
#Override
public CharSequence getPageTitle(int position) {
return mFragmentTitleList.get(position);
}
}
TAB STYLE:
Please help me to sort out this issue! what am i doing wrong here.I used a tutorial and done exactly as explained.
FINALLY FOUND A SOLUTION
if (getCount() > 0) tabLayout.setupWithViewPager(viewPager);
viewPager.setCurrentItem(getCount() - 1);
setupTabLayout();
added this piece of code to removeFrag function!
public void removeFrag(int position) {
removeTab(position);
Log.e("REMOVING POSITION ",String.valueOf(position));
Fragment fragment = mFragmentList.get(position);
mFragmentList.remove(fragment);
mFragmentTitleList.remove(position);
Log.e("mFragmentList_REMOVE",String.valueOf(mFragmentList.size()));
Log.e("TitleList_REMOVE",String.valueOf(mFragmentTitleList.size()));
//destroyFragmentView(viewPager, position, fragment);
notifyDataSetChanged();
if (getCount() > 0) tabLayout.setupWithViewPager(viewPager);
viewPager.setCurrentItem(getCount() - 1);
setupTabLayout();
}
Use this function to remove..this is happening because :-
The position of your getView(int position) is not updated after you are removing a tab.. so write the function of click listener of remove(imageButton) like this..
remove.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Log.d("Remove", "Remove");
if(getCount() != 1){
remove.setEnabled(false); // it here..
removeFrag(position);
}
else{
// Toast.makeText("Atleast One Tab is requied")
}
}
});
public void removeFrag(int position) {
Log.e("REMOVING POSITION ",String.valueOf(position));
Fragment fragment = mFragmentList.get(position);
mFragmentList.remove(fragment);
mFragmentTitleList.remove(position);
Log.e("mFragmentList_REMOVE",String.valueOf(mFragmentList.size()));
Log.e("TitleList_REMOVE",String.valueOf(mFragmentTitleList.size()));
removeTab(position);
//destroyFragmentView(viewPager, position, fragment);
notifyDataSetChanged();
setupTabLayout(); // do the setup of tablayout after removing
}
Edit Do one more thing dont forget to disable the button.. because if the user clicks the button two consecutive times..in a flash the might crash..
remove.setEnabled(false); disable and enable again at getView(int position) again..
getView(int position)
{
........
remove.setEnabled(true); //enable
}
Update :-
public void removeTab(int position) {
if (tabLayout.getChildCount() > 0 && tabLayout!=null) {
tabLayout.removeTabAt(position);
//notifyDataSetChanged(); //notify here
removeTabPage(position);
}
//viewPager.setAdapter(this);
}
You also need to remove the page..
public void removeTabPage(int position) {
if (!mFragmentList.isEmpty() && position<mFragmentList.size()) {
mFragmentList.remove(position);
notifyDataSetChanged();
}
}
public class ViewPagerAdapter extends FragmentStatePagerAdapter {
private final ArrayList<Fragment> mFragmentList = new ArrayList<>();
private final ArrayList<String> mFragmentTitleList = new ArrayList<>();
Context context;
ViewPager viewPager;
TabLayout tabLayout;
public ViewPagerAdapter(FragmentManager manager, Context context, ViewPager viewPager,
TabLayout tabLayout) {
super(manager);
this.context = context;
this.viewPager = viewPager;
this.tabLayout = tabLayout;
}
#Override
public Fragment getItem(int position) {
return mFragmentList.get(position);
}
#Override
public int getCount() {
return mFragmentList.size();
}
public void addFrag(Fragment fragment, String title) {
mFragmentList.add(fragment);
mFragmentTitleList.add(title);
}
public void removeFrag(int position) {
removeTab(position);
Fragment fragment = mFragmentList.get(position);
mFragmentList.remove(fragment);
mFragmentTitleList.remove(position);
notifyDataSetChanged();
viewPager.setAdapter(this);
}
public View getTabView(final int position) {
View view = LayoutInflater.from(context).inflate(R.layout.custom_tab_item, null);
TextView tabItemName = (TextView) view.findViewById(R.id.textViewTabItemName);
CircleImageView tabItemAvatar =
(CircleImageView) view.findViewById(R.id.imageViewTabItemAvatar);
ImageButton remove = (ImageButton) view.findViewById(R.id.imageButtonRemove);
remove.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Log.d("Remove", "Remove");
removeFrag(position);
}
});
tabItemName.setText(mFragmentTitleList.get(position));
tabItemName.setTextColor(context.getResources().getColor(android.R.color.background_light));
switch (mFragmentTitleList.get(position)) {
case "Gaiduk":
tabItemAvatar.setImageResource(R.drawable.gaiduk);
break;
case "Nguyen":
tabItemAvatar.setImageResource(R.drawable.avatar);
break;
case "Balakin":
tabItemAvatar.setImageResource(R.drawable.balakin);
break;
case "Golovin":
tabItemAvatar.setImageResource(R.drawable.golovin);
break;
case "Ovcharov":
tabItemAvatar.setImageResource(R.drawable.ovcharov);
break;
case "Solovienko":
tabItemAvatar.setImageResource(R.drawable.solovei);
break;
default:
tabItemAvatar.setImageResource(R.drawable.boy);
break;
}
return view;
}
public void removeTab(int position) {
if (tabLayout.getChildCount() > 0) {
tabLayout.removeTabAt(position);
}
}
#Override
public int getItemPosition(Object object) {
return POSITION_NONE;
}
#Override
public CharSequence getPageTitle(int position) {
return mFragmentTitleList.get(position);
}
}
Added removeFrag function as:
public void removeFrag(int position) {
removeTab(position);
Log.e("REMOVING POSITION ",String.valueOf(position));
Fragment fragment = mFragmentList.get(position);
mFragmentList.remove(fragment);
mFragmentTitleList.remove(position);
Log.e("mFragmentList_REMOVE",String.valueOf(mFragmentList.size()));
Log.e("TitleList_REMOVE",String.valueOf(mFragmentTitleList.size()));
//destroyFragmentView(viewPager, position, fragment);
notifyDataSetChanged();
if (getCount() > 0) tabLayout.setupWithViewPager(viewPager);
viewPager.setCurrentItem(getCount() - 1);
setupTabLayout();
}
I faced with a problem I can not solve. How can you replace icons in the text resource. Let's say instead of the first icons - current , the second icon - finished .
public class ViewPageAdapter extends FragmentPagerAdapter implements PagerSlidingTabStrip.CustomTabProvider {
private Context mContext;
private final int[] ICONS = {
R.drawable.selector_icon_active,
R.drawable.selector_icon_inactive
};
public ViewPageAdapter(FragmentManager fm, Context context) {
super(fm);
mContext = context;
}
#Override
public void tabUnselected(View view) {
view.setSelected(false);
}
#Override
public void tabSelected(View view) {
view.setSelected(true);
}
#Override
public View getCustomTabView(ViewGroup parent, int position) {
FrameLayout customLayout = (FrameLayout) LayoutInflater.from(mContext).inflate(R.layout.custom_tab, parent, false);
((ImageView) customLayout.findViewById(R.id.image)).setImageResource(ICONS[position]);
return customLayout;
}
#Override
public CharSequence getPageTitle(int position) {
// return null;
return super.getPageTitle(position);
}
#Override
public int getCount() {
return ICONS.length;
}
#Override
public Fragment getItem(int position) {
Bundle bundle = new Bundle();
switch (position) {
case 0:
default:
bundle.putSerializable("TYPE", NotificationsType.ACTIVE);
break;
case 1:
bundle.putSerializable("TYPE", NotificationsType.INACTIVE);
break;
}
Fragment fragment = new TabFragment();
fragment.setArguments(bundle);
return fragment;
}
}
//SampleTabsWithIcons.java
public class SampleTabsWithIcons extends FragmentActivity {
private static final int[] ICONS = new int[] {
R.drawable.events,
R.drawable.rss,
R.drawable.user,
R.drawable.bell,
R.drawable.search
};
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.simple_tabs);
FragmentPagerAdapter adapter = new GoogleMusicAdapter(getSupportFragmentManager());
ViewPager pager = (ViewPager)findViewById(R.id.pager);
pager.setAdapter(adapter);
TabPageIndicator indicator = (TabPageIndicator)findViewById(R.id.indicator);
indicator.setViewPager(pager);
}
class GoogleMusicAdapter extends FragmentPagerAdapter implements IconPagerAdapter {
public GoogleMusicAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int position) {
return TestFragment.newInstance(ICONS[position % ICONS.length]);
}
#Override public int getIconResId(int index) {
return ICONS[index];
}
#Override
public int getCount() {
return ICONS.length;
}
}
}
//TestFragment.java
public final class TestFragment extends Fragment {
private static final String KEY_CONTENT = "TestFragment:Content";
public static TestFragment newInstance(int icons) {
TestFragment fragment = new TestFragment();
StringBuilder builder = new StringBuilder();
for (int i = 0; i < 20; i++) {
builder.append(icons).append(" ");
}
builder.deleteCharAt(builder.length() - 1);
fragment.mContent = builder.toString();
return fragment;
}
private String mContent = "???";
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if ((savedInstanceState != null) && savedInstanceState.containsKey(KEY_CONTENT)) {
mContent = savedInstanceState.getString(KEY_CONTENT);
}
}
#SuppressWarnings("deprecation")
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
TextView text = new TextView(getActivity());
text.setGravity(Gravity.CENTER);
text.setText(mContent);
text.setTextSize(20 * getResources().getDisplayMetrics().density);
text.setPadding(20, 20, 20, 20);
LinearLayout layout = new LinearLayout(getActivity());
layout.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
layout.setGravity(Gravity.CENTER);
layout.addView(text);
return layout;
}
#Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putString(KEY_CONTENT, mContent);
}
}
//TestFragmentAdapter.java
class TestFragmentAdapter extends FragmentPagerAdapter implements IconPagerAdapter {
private static final int[] ICONS = new int[] {
R.drawable.events,
R.drawable.rss,
R.drawable.user,
R.drawable.bell,
R.drawable.search
};
private int mCount = ICONS.length;
public TestFragmentAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int position) {
return TestFragment.newInstance(ICONS[position % ICONS.length]);
}
#Override
public int getCount() {
return mCount;
}
#Override
public int getIconResId(int index) {
return ICONS[index % ICONS.length];
}
public void setCount(int count) {
if (count > 0 && count <= 10) {
mCount = count;
notifyDataSetChanged();
}
}
}
and my output is,
My question is instead of displaying numbers while selecting each tabs, I want to go to new fragment activity (ie, newpage.java). Now some numbers are showing on each tab selection. How can i implement this.
I have 5 class (first.java,second.java,third.java,four.java,five.java) and 5 layout for each tabs (first.xml... respectively)
I tried a lot but no success. Does anyone know the answer.
Thanks.
Ok you can make your own Fragments and then return them in the getItem(int position); for example, you could have an array of your Fragments calendar, feed, etc. then on each position you return one.
//SampleTabsWithIcons.java
Fragment[] tabFragments = new Fragment[] {CalendarFragment.newInstance(),
FeedFragment.newInstance()}
.....
#Override
public Fragment getItem(int position) {
return tabFragments[position];
}
You can simply use this and set the tab to the viewPager ...
#Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
viewPager.setCurrentItem(tab.getPosition());
}
Inside fragment pager adapter you can do like this.
#Override
public Fragment getItem(int position) {
switch (position) {
case 0:
frag = UsageRecoSummaryFragemrent.newInstance(position);
// changeColor(newColor);
break;
Inside fragment
public static UsageRecoSummaryFragemrent newInstance(int position) {
UsageRecoSummaryFragemrent f = new UsageRecoSummaryFragemrent();
Bundle b = new Bundle();
b.putInt(ARG_POSITION, 0);
f.setArguments(b);
return f;
}