I have a fragment that loads two other fragments as :
SoccerFragment loads -> MatchFragment,VoteFragment.
When first time the SoccerFragment is created i can refresh the twofragments and get the data in MatchFragment and VoteFragment successfully.
The problem is when switching between other fragments and going back to the SoccerFragment which is holding the two fragments i am not able to refresh the two fragments inside as below :
i have searched and found some solutions but didn t work as :
1- Deriving my class ViewPagerAdapter from FragmentpagerAdapter to extending FragmentStatePagerAdapter.
2- viewpager.setOffscreenPageLimit(0);
This is my SoccerFragment class :
public class SoccerFragment extends Fragment {
public CoordinatorLayout coordinatorLayout;
public boolean isConnected;
public ViewPager viewPager;
public TabLayout tabLayout;
public String id, name_team1, name_team2;
@Override
public void onPrepareOptionsMenu(Menu menu) {
super.onPrepareOptionsMenu(menu);
}
public SoccerFragment() {
// Required empty public constructor
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View v = inflater.inflate(R.layout.fragment_soccer, null);
viewPager = (ViewPager) v.findViewById(R.id.viewpager2);
addTabs(viewPager);
tabLayout = (TabLayout) v.findViewById(R.id.tabs2);
tabLayout.setupWithViewPager(viewPager);
return v;
}
private void addTabs(ViewPager viewPager) {
ViewPagerAdapter adapter = new ViewPagerAdapter(getActivity().getSupportFragmentManager());
adapter.addFrag(new ThreeFragment(),"المباريات");
adapter.addFrag(new VoteFragment(),"التصويت");
viewPager.setOffscreenPageLimit(0);
viewPager.setAdapter(adapter);
}
class ViewPagerAdapter extends FragmentStatePagerAdapter {
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 addFrag(Fragment fragment, String title) {
mFragmentList.add(fragment);
mFragmentTitleList.add(title);
}
@Override
public CharSequence getPageTitle(int position) {
return mFragmentTitleList.get(position);
}
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
inflater.inflate(R.menu.menu_main, menu);
super.onCreateOptionsMenu(menu, inflater);
}
}
What should i do ?
EDITED : this is the code of one of my two fragments inside the SoccerFragment:
public class VoteFragment extends Fragment implements ConnectivityReceiver.ConnectivityReceiverListener,
SwipeRefreshLayout.OnRefreshListener {
public LinearLayout coordinatorLayout;
public boolean isConnected;
public PostAdapter6 adapter;
public RecyclerView recycler_vote;
ArrayList<Vote_valid_data> post_array = new ArrayList<>();
public SwipeRefreshLayout swipeRefreshLayout;
public String id, st_image1, st_image2, st_team1, st_team2, stadium, tour, name_match,id_signin;
ImageView image1, image2;
public TextView name_team1, name_team2, between, between1, txt_team1, txt_team2;
public Button bt_increment1, bt_deincrement1, bt_increment2, bt_deincrement2, bt_tosignin;
public int calcul, calcul1 = 0, i = 0;
public String fb_email, fb_name,fb_image;
public Switch aSwitch2;
public VoteFragment() {
// Required empty public constructor
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
return super.onOptionsItemSelected(item);
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setHasOptionsMenu(true);
checkConnectivity();
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View v = inflater.inflate(R.layout.fragment_vote, null);
SharedPreferences sharedPreferences2 = getContext().getSharedPreferences(getContext().getString(R.string.PREF_LOGIN), MODE_PRIVATE);
fb_email = sharedPreferences2.getString(getString(R.string.email_signin), "");
fb_name = sharedPreferences2.getString(getString(R.string.name_signin), "");
fb_image = sharedPreferences2.getString(getString(R.string.image_signin), "");
id_signin= sharedPreferences2.getString(getString(R.string.id_signin), "");
coordinatorLayout = (LinearLayout) v.findViewById(R.id.coordinatorLayout);
recycler_vote = (RecyclerView) v.findViewById(R.id.recycler_vote);
LinearLayoutManager layoutManager = new LinearLayoutManager(this.getActivity());
recycler_vote.setLayoutManager(layoutManager);
recycler_vote.setNestedScrollingEnabled(false);
recycler_vote.setItemAnimator(new DefaultItemAnimator());
swipeRefreshLayout = (SwipeRefreshLayout) v.findViewById(R.id.swipe_refresh);
swipeRefreshLayout.setOnRefreshListener(this);
swipeRefreshLayout.setColorSchemeResources(R.color.colorGreen, R.color.black, R.color.colorRed);
try {
getData();
} catch (Exception e) {
e.printStackTrace();
}
return v;
}
public void getData() throws Exception {
if (checkConnectivity()) {
try {
swipeRefreshLayout.setRefreshing(true);
getAllMatchesVote();
} catch (Exception e) {
e.printStackTrace();
}
} else {
swipeRefreshLayout.setRefreshing(false);
// getAllPosts();
showSnack();
}
}
public boolean checkConnectivity() {
return ConnectivityReceiver.isConnected();
}
public void showSnack() {
Snackbar.make(coordinatorLayout, getString(R.string.no_internet_connected), Snackbar.LENGTH_INDEFINITE)
.setAction(getString(R.string.settings), new View.OnClickListener() {
@Override
public void onClick(View view) {
startActivity(new Intent(Settings.ACTION_WIRELESS_SETTINGS));
}
}).setActionTextColor(Color.RED)
.show();
}
@Override
public void onResume() {
super.onResume();
// Toast.makeText(getContext(),"u have resumed the app",Toast.LENGTH_SHORT).show();
AppController.getInstance().setConnectivityReceiver(this);
}
@Override
public void onRefresh() {
try {
// Toast.makeText(getContext(),"u have refreshed the app",Toast.LENGTH_SHORT).show();
//when u swipe the app..the getdata method is invoked !
getData();
} catch (Exception e) {
e.printStackTrace();
}
}
@Override
public void onPause() {
super.onPause();
// Toast.makeText(getContext(),"u have paused the app",Toast.LENGTH_SHORT).show();
}
@Override
public void onNetworkChange(boolean inConnected) {
this.isConnected = inConnected;
// Toast.makeText(getContext(),"the app network have been changed",Toast.LENGTH_SHORT).show();
}
public void getAllMatchesVote() throws Exception {
final String TAG = "MATCH_VOTE";
String url = Constants.MATCH_VOTE;
StringRequest jsonObjectRequest = new StringRequest(Request.Method.POST, url, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
Log.i("response", response);
parseJson(response);
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
try {
swipeRefreshLayout.setRefreshing(false);
Log.e("error", "" + error.getMessage());
} catch (NullPointerException e) {
swipeRefreshLayout.setRefreshing(false);
e.printStackTrace();
}
}
});
AppController.getInstance().addToRequestQueue(jsonObjectRequest, TAG);
swipeRefreshLayout.setRefreshing(false);
}
public void parseJson(String response) {
try {
JSONArray array = new JSONArray(response);
JSONObject jsonObject = null;
post_array.clear();
Vote_valid_data p;
for (int i = 0; i < array.length(); i++) {
jsonObject = array.getJSONObject(i);
/* String VOTE1 = jsonObject.getString("VOTE1");
String VOTE2 = jsonObject.getString("VOTE2");
String COUNT = jsonObject.getString("COUNT1");
String TOTAL = jsonObject.getString("TOTAL"); */
String id_livestream=jsonObject.getString("id_livestream");
String name_match=jsonObject.getString("name_match");
String name_team1= jsonObject.getString("name_team_1");
String name_team2= jsonObject.getString("name_team_2");
String image_team1= jsonObject.getString("image_team_1");
String image_team2= jsonObject.getString("image_team_2");
p = new Vote_valid_data();
p.setId_livestream(id_livestream);
p.setName_match(name_match);
p.setName_team1(name_team1);
p.setName_team2(name_team2);
p.setImage_team1(image_team1);
p.setImage_team2(image_team2);
post_array.add(p);
//realmHelper.save(p);
}
} catch (JSONException e) {
swipeRefreshLayout.setRefreshing(false);
e.printStackTrace();
//Log.d("error", e.getMessage());
}
adapter = new PostAdapter6(getContext(), post_array);
recycler_vote.setAdapter(adapter);
swipeRefreshLayout.setRefreshing(false);
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
inflater.inflate(R.menu.menu_main, menu);
super.onCreateOptionsMenu(menu,inflater);
}
}
XML layout for both two fragments :
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:ads="http://schemas.android.com/apk/res-auto"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/coordinatorLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<android.support.v4.widget.SwipeRefreshLayout
android:id="@+id/swipe_refresh"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_behavior="@string/appbar_scrolling_view_behavior">
<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.RecyclerView
android:id="@+id/recycler_post"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</android.support.v4.widget.NestedScrollView>
</android.support.v4.widget.SwipeRefreshLayout>
</LinearLayout>
The activity that holds all fragments :
public class navigation extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
private TabLayout tabLayout;
private TextView txt_developedby,txtName,txtWebsite,txt_points;
private ImageView imgProfile;
private View navHeader;
private ViewPager viewPager;
private String name,email,photo,id_signin;
private int[] tabIcons = {
R.drawable.ic_favorite_final,
R.drawable.soccer_icon,
R.drawable.ic_sort,
R.drawable.video_icon,
R.drawable.trophy_icon
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
FacebookSdk.sdkInitialize(getApplicationContext());
setContentView(R.layout.activity_navigation);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
try {
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayShowTitleEnabled(false);
if ((getIntent().getFlags() & Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT) != 0) {
// Activity was brought to front and not created,
// Thus finishing this will get us to the last viewed activity
finish();
return;
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.setDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navHeader=navigationView.getHeaderView(0);
navigationView.setItemIconTintList(null);
navigationView.setNavigationItemSelectedListener(this);
txtName = (TextView)navHeader.findViewById(R.id.name);
txtWebsite = (TextView)navHeader.findViewById(R.id.website);
// txt_points = (TextView)navHeader.findViewById(R.id.txt_points);
imgProfile = (ImageView)navHeader.findViewById(R.id.img_profile);
viewPager = (ViewPager) findViewById(R.id.viewpager);
setupViewPager(viewPager);
tabLayout = (TabLayout) findViewById(R.id.tabs);
tabLayout.setupWithViewPager(viewPager);
setupTabIcons();
SharedPreferences sharedPreferences = getApplicationContext().getSharedPreferences(getString(R.string.PREF_LOGIN), MODE_PRIVATE);
name = sharedPreferences.getString(getString(R.string.name_signin), "");
email = sharedPreferences.getString(getString(R.string.email_signin), "");
photo = sharedPreferences.getString(getString(R.string.image_signin), "");
id_signin = sharedPreferences.getString(getString(R.string.id_signin), "");
if(name.equals("")) {
navigationView.getMenu().clear();
navigationView.inflateMenu(R.menu.activity_notregistered); }
else
{
navigationView.getMenu().clear();
navigationView.inflateMenu(R.menu.activity_navigation_drawer);
}
if(name.equals("") && email.equals("") && photo.equals("")) {
//txtName.setText(getString(R.string.notregistered));
txtWebsite.setText(getString(R.string.User));
Glide.with(this).load(R.drawable.defaultimag)
.crossFade()
.thumbnail(0.5f)
.bitmapTransform(new CircleTransform(this))
.diskCacheStrategy(DiskCacheStrategy.ALL)
.into(imgProfile);
}
else {
// txtName.setText(name);
txtWebsite.setText(name);
// Loading profile image
Glide.with(this).load(photo)
.crossFade()
.thumbnail(0.5f)
.bitmapTransform(new CircleTransform(this))
.diskCacheStrategy(DiskCacheStrategy.ALL)
.into(imgProfile);
txt_developedby = (TextView) findViewById(R.id.footer_item_2);
txt_developedby.setMovementMethod(LinkMovementMethod.getInstance());
getAllPosts();
}
} catch (Exception e) {
e.printStackTrace();
}
}
private void setupTabIcons() {
// tabLayout.getTabAt(0).setIcon(buildCounterDrawable(,R.drawable.ic_cart_count));
tabLayout.getTabAt(0).setIcon(tabIcons[0]);
tabLayout.getTabAt(1).setIcon(tabIcons[1]);
tabLayout.getTabAt(2).setIcon(tabIcons[2]);
tabLayout.getTabAt(3).setIcon(tabIcons[3]);
tabLayout.getTabAt(4).setIcon(tabIcons[4]);
}
private void setupViewPager(ViewPager viewPager) {
ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());
adapter.addFrag(new OneFragment());
adapter.addFrag(new SoccerFragment());
adapter.addFrag(new StandingFragment());
adapter.addFrag(new VideoFragment());
adapter.addFrag(new WinnerFragment());
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 addFrag(Fragment fragment) {
mFragmentList.add(fragment);
// mFragmentTitleList.add(title);
}
}
@Override
public void onBackPressed() {
try {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}catch (IllegalArgumentException e)
{
e.printStackTrace();
}
}
@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.share) {
share();
} else if (id == R.id.check) {
check();
} else if (id == R.id.feedback) {
feedback();
} else if (id == R.id.settings_notification) {
Intent i = new Intent(getApplicationContext(), SettingsActivity.class);
startActivity(i);
}else if(id==R.id.signout_press)
{
SharedPreferences sharedPreferences = getApplicationContext().getSharedPreferences(getApplicationContext().getString(R.string.PREF_LOGIN_JUST_STATUS), MODE_PRIVATE);
SharedPreferences.Editor editor = sharedPreferences.edit();
editor.putString(getApplicationContext().getString(R.string.status_points), "false");
editor.apply();
LoginManager.getInstance().logOut();
Intent i = new Intent(getApplicationContext(),MainActivity.class);
startActivity(i);
finish();
}else if(id==R.id.signin_press)
{
Intent i = new Intent(getApplicationContext(),MainActivity.class);
startActivity(i);
finish();
}
else if(id==R.id.ic_team)
{
Intent i = new Intent(getApplicationContext(),TeamActivity.class);
startActivity(i);
finish();
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == R.id.action_settings) {
rateMe();
}
return super.onOptionsItemSelected(item);
}
private void share() {
try {
int applicationNameId = this.getApplicationInfo().labelRes;
final String appPackageName = this.getPackageName();
Intent i = new Intent(Intent.ACTION_SEND);
i.setType("text/plain");
i.putExtra(Intent.EXTRA_SUBJECT, this.getString(applicationNameId));
String link = "https://play.google.com/store/apps/details?id=" + appPackageName;
i.putExtra(Intent.EXTRA_TEXT, getString(R.string.text) + " " + link);
startActivity(Intent.createChooser(i, getString(R.string.shareapp)));
} catch (Exception e) {
}
}
private void rateMe() {
Uri uri = Uri.parse("market://details?id=" + navigation.this.getPackageName());
Intent goToMarket = new Intent(Intent.ACTION_VIEW, uri);
// To count with Play market backstack, After pressing back button,
// to taken back to our application, we need to add following flags to intent.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
goToMarket.addFlags(Intent.FLAG_ACTIVITY_NO_HISTORY |
Intent.FLAG_ACTIVITY_NEW_DOCUMENT |
Intent.FLAG_ACTIVITY_MULTIPLE_TASK);
}
try {
startActivity(goToMarket);
} catch (ActivityNotFoundException e) {
startActivity(new Intent(Intent.ACTION_VIEW,
Uri.parse("http://play.google.com/store/apps/details?id=" + navigation.this.getPackageName())));
}
}
private void check() {
Uri uri = Uri.parse("market://details?id=" + navigation.this.getPackageName());
Intent goToMarket = new Intent(Intent.ACTION_VIEW, uri);
// To count with Play market backstack, After pressing back button,
// to taken back to our application, we need to add following flags to intent.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
goToMarket.addFlags(Intent.FLAG_ACTIVITY_NO_HISTORY |
Intent.FLAG_ACTIVITY_NEW_DOCUMENT |
Intent.FLAG_ACTIVITY_MULTIPLE_TASK);
}
try {
startActivity(goToMarket);
} catch (ActivityNotFoundException e) {
startActivity(new Intent(Intent.ACTION_VIEW,
Uri.parse("http://play.google.com/store/apps/details?id=" + navigation.this.getPackageName())));
}
}
private void feedback() {
try {
Intent Email = new Intent(Intent.ACTION_SEND);
Email.setType("text/email");
Email.putExtra(Intent.EXTRA_EMAIL, new String[]{"alahedclub1@gmail.com"});
Email.putExtra(Intent.EXTRA_SUBJECT, getString(R.string.feedbacksubject));
Email.putExtra(Intent.EXTRA_TEXT, "");
startActivity(Intent.createChooser(Email, getString(R.string.feedbacktitle)));
} catch (Exception e) {
e.printStackTrace();
}
}
public void getAllPosts() throws Exception {
final String TAG = "POINTS_URL";
String url = Constants.POINTS_URL;
StringRequest jsonObjectRequest = new StringRequest(Request.Method.POST, url, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
// Log.i("response_points", response);
try {
txtName.setText(response + " " + "points");
}catch (Exception e)
{
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
try {
Log.e("error", "" + error.getMessage());
} catch (NullPointerException e) {
e.printStackTrace();
}
}
}) {
@Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String, String> params = new HashMap<String, String>();
params.put("email", id_signin);
return params;
}
};
AppController.getInstance().addToRequestQueue(jsonObjectRequest, TAG);
}
}
