Develop Reference

Android Fragment: Overlapping - still visible after replace

I have a Fragment (PokedexFragment.java) which contains a GridView (via Custom Recyclerview) with a few items. When I click on an item the current Fragment will be replaced by another fragment (SinglePokemonFragment.java) with the details from the selected item.
The user would like to go to the last or next item in the gridview directly (pressing Forward- / Backbutton). When he presses the Hardware "Backbutton" the old Fragment (SinglePokemonFragment.java) is still visible!
I do not like to use addBackStack, because there should not be any backstacks.
What part of the code is wrong or has to be updated and why?
I thought replace means replace...
SinglePokemonFragment.java (Buttons)
cLayBack.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// Create new fragment and transaction
Fragment newFragment = new SinglePokemonFragment();
FragmentTransaction transaction = getFragmentManager().beginTransaction();
Bundle bundle = new Bundle();
bundle.putInt("POKEMON_ID", Integer.parseInt(db.getPokemonID(intPokeDexID-1)));
bundle.putInt("ARRAY_ID", intPokeArrayID-1);
bundle.putInt("POKEMON_ID_MAX", getIntPokemonIDMax);
bundle.putInt("POKEDEX_ID", intPokeDexID-1);
newFragment.setArguments(bundle);
transaction.replace(R.id.frame_container, newFragment);
// Commit the transaction
transaction.commit();
}
});
cLayForward.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// Create new fragment and transaction
Fragment newFragment = new SinglePokemonFragment();
FragmentTransaction transaction = getFragmentManager().beginTransaction();
Bundle bundle = new Bundle();
bundle.putInt("POKEMON_ID", Integer.parseInt(db.getPokemonID(intPokeDexID+1)));
bundle.putInt("ARRAY_ID", intPokeArrayID+1);
bundle.putInt("POKEMON_ID_MAX", getIntPokemonIDMax);
bundle.putInt("POKEDEX_ID", intPokeDexID+1);
newFragment.setArguments(bundle);
transaction.replace(R.id.frame_container, newFragment);
// Commit the transaction
transaction.commit();
}
});
MainFragment.java (with ViewPager)
public class MainFragment extends Fragment {
private TextView titleTxtView;
private static final String ARG_PARAM1 = "param1";
private String mParam1;
TabLayout tabLayout;
ViewPager viewPager;
private FragmentActivity myContext;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_main, container, false);
tabLayout = (TabLayout) view.findViewById(R.id.tab_layout);
viewPager = (ViewPager) view.findViewById(R.id.pager);
if (viewPager != null) {
Log.v("ViewPager", "IS NOT NULL");
setupViewPager(viewPager);
tabLayout.getTabAt(0).setIcon(R.drawable.ic_pokedex);
tabLayout.getTabAt(1).setIcon(R.drawable.pokedex_kanto);
tabLayout.getTabAt(2).setIcon(R.drawable.pokedex_johto);
tabLayout.getTabAt(3).setIcon(R.drawable.pokedex_hoenn);
}else{
Log.v("ViewPager", "ISNULL");
}
return view;
}
#Override
public void onAttach(Activity activity) {
myContext=(FragmentActivity) activity;
super.onAttach(activity);
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
mParam1 = getArguments().getString(ARG_PARAM1);
}
}
private void setupViewPager(ViewPager viewPager) {
PagerAdapter adapter = new PagerAdapter(getChildFragmentManager(), getActivity());
adapter.addFragment(new PokedexFragment().newInstance(0, 9999), "Alle");
adapter.addFragment(new PokedexFragment().newInstance(1, 151), "Kanto");
adapter.addFragment(new PokedexFragment().newInstance(152, 251), "Johto");
adapter.addFragment(new PokedexFragment().newInstance(252, 386), "Hoenn");
viewPager.setAdapter(adapter);
tabLayout.setupWithViewPager(viewPager);
}
}
PokedexFragment.java
package com.spicysoftware.goexpert;
import android.os.Bundle;
import android.support.constraint.ConstraintLayout;
import android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.view.ViewPager;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import android.widget.Toolbar;
import java.util.ArrayList;
import java.util.List;
import static android.content.ContentValues.TAG;
public class PokedexFragment extends Fragment{
private static final String ARG_PARAM1 = "param1";
private static final String ARG_PARAM2 = "param2";
MySQLiteHelper db;
// TODO: Rename and change types of parameters
private int param1, param2;
public PokedexFragment() {
// Required empty public constructor
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
param1 = getArguments().getInt(ARG_PARAM1);
param2 = getArguments().getInt(ARG_PARAM2);
}
}
public static PokedexFragment newInstance(int intDexFrom, int intDexTo) {
PokedexFragment fragment = new PokedexFragment();
Bundle args = new Bundle();
args.putInt(ARG_PARAM1, intDexFrom);
args.putInt(ARG_PARAM2, intDexTo);
fragment.setArguments(args);
Log.d(TAG, "newInstance: 2F");
return fragment;
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View myView = inflater.inflate(R.layout.fragment_pokedexall, container, false);
db = new MySQLiteHelper(getActivity());
RecyclerView recyclerView = (RecyclerView)myView.findViewById(R.id.rvPokedex);
recyclerView.setHasFixedSize(true);
RecyclerView.LayoutManager layoutManager = new GridLayoutManager(getActivity(),4);
recyclerView.setLayoutManager(layoutManager);
recyclerView.setItemViewCacheSize(20);
recyclerView.setDrawingCacheEnabled(true);
recyclerView.setDrawingCacheQuality(View.DRAWING_CACHE_QUALITY_HIGH);
CustomRecyclerAdapterPokedexGrid adapter = new CustomRecyclerAdapterPokedexGrid(getActivity(), db.getPokemon(param1,param2));
recyclerView.setAdapter(adapter);
return myView;
}
}
CustomRecyclerAdapterPokedexGrid.java (ItemClickListener)
viewHolder.setClickListener(new ItemClickListener() {
#Override
public void onClick(View view, int position, boolean isLongClick) {
if (isLongClick) {
} else {
String test = strPokemonInfo.get(i);
String[] separated = test.split("/");
intPokemonID = Integer.parseInt(separated[0]);
pokeDexID = Integer.parseInt(separated[1]);
Fragment myFragment = new SinglePokemonFragment();
Bundle bundle = new Bundle();
bundle.putInt("POKEMON_ID", intPokemonID);
bundle.putInt("ARRAY_ID", i);
bundle.putInt("POKEMON_ID_MAX", strPokemonInfo.size());
bundle.putInt("POKEDEX_ID", pokeDexID);
myFragment.setArguments(bundle);
AppCompatActivity activity = (AppCompatActivity) view.getContext();
activity.getSupportFragmentManager().beginTransaction().replace(R.id.frame_container, myFragment).addToBackStack(null).commit();
}
}
});

How to add Tabhost in Navigation Drawer

In my app I am using navigation drawer from this tutorial http://www.androidhive.info/2013/11/android-sliding-menu-using-navigation-drawer/
Now I am trying to add tabhost with fragment,but its not working
it shows error here tabss.setViewPager(mViewPager);
Cannot resolve method setviewpager(android.support.v4.view.viewpager)
public class All_Product_Details extends Fragment {
private TabHost mTabHost;
private ViewPager mViewPager;
private YourAdapter mTabsAdapter;
private Button descr;
private TextView general_desc;
private TextView short_desc;
private TextView full_desc;
private Button btn_add_to_cart;
public All_Product_Details(){}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
final View rootView = inflater.inflate(R.layout.all_product_detais, container, false);
mViewPager = (ViewPager)rootView.findViewById(R.id.viewpager);
mTabsAdapter= new YourAdapter(getFragmentManager());
mViewPager.setAdapter(mTabsAdapter);
TabWidget tabss = (TabWidget)rootView.findViewById(R.id.tabs);
tabss.setViewPager(mViewPager);
general_desc=(TextView)rootView.findViewById(R.id.general_desc);
short_desc=(TextView)rootView.findViewById(R.id.short_desc);
full_desc=(TextView)rootView.findViewById(R.id.full_desc);
btn_add_to_cart=(Button)rootView.findViewById(R.id.btn_addtocart);
btn_add_to_cart.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Add_to_cart tf = new Add_to_cart();
android.support.v4.app.FragmentManager fm = getFragmentManager();
android.support.v4.app.FragmentTransaction ft = fm.beginTransaction();
ft.replace(R.id.frame_container, tf);
ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE);
ft.addToBackStack(null);
ft.commit();
}
});
short_desc.setVisibility(View.GONE);
full_desc.setVisibility(View.GONE);
descr=(Button)rootView.findViewById(R.id.all_prod_description);
descr.setBackgroundResource(R.drawable.hidebackground);
descr.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
if (flag == 0) {
descr.setBackgroundResource(R.drawable.showbackground);
//lnrallbtns.setVisibility(View.GONE);
general_desc.setVisibility(View.GONE);
flag++;
} else {
descr.setBackgroundResource(R.drawable.hidebackground);
// lnrallbtns.setVisibility(View.VISIBLE);
general_desc.setVisibility(View.VISIBLE);
short_desc.setVisibility(View.GONE);
full_desc.setVisibility(View.GONE);
flag = 0;
}
}
});
return rootView;
}
public class YourAdapter extends FragmentStatePagerAdapter {
private String[] titles = { "Item 1", "Item 2", "Item 3" };
public YourAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int i) {
switch(i){
case 0:{
return new FragementA();
}case 1:{
return new FragmentB();
}case 2:{
return new FragmentC();
}
}
}
#Override
public int getCount() {
return titles.length;
}
#Override
public CharSequence getPageTitle(int position) {
return titles[position];
}
}
}

I found and referred an awsm example called Balaji-K13 .
You can add whatever your list in here like:
Inside MainActivity.java
package com.webileapps.navdrawer;
import android.content.res.Configuration;
import android.os.Bundle;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import com.actionbarsherlock.app.SherlockFragment;
import com.actionbarsherlock.app.SherlockFragmentActivity;
public class MainActivity extends SherlockFragmentActivity {
DrawerLayout mDrawerLayout;
ListView mDrawerList;
ActionBarDrawerToggle mDrawerToggle;
private CharSequence mDrawerTitle;
private CharSequence mTitle;
private String[] mPlanetTitles;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mTitle = mDrawerTitle = getTitle();
mPlanetTitles = getResources().getStringArray(R.array.planets_array);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mDrawerList = (ListView) findViewById(R.id.left_drawer);
// set a custom shadow that overlays the main content when the drawer
// opens
mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow,
GravityCompat.START);
// set up the drawer's list view with items and click listener
mDrawerList.setAdapter(new ArrayAdapter<String>(this,
R.layout.drawer_list_item, mPlanetTitles));
mDrawerList.setOnItemClickListener(new DrawerItemClickListener());
// enable ActionBar app icon to behave as action to toggle nav drawer
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setHomeButtonEnabled(true);
// ActionBarDrawerToggle ties together the the proper interactions
// between the sliding drawer and the action bar app icon
mDrawerToggle = new ActionBarDrawerToggle(this, /* host Activity */
mDrawerLayout, /* DrawerLayout object */
R.drawable.ic_drawer, /* nav drawer image to replace 'Up' caret */
R.string.drawer_open, /* "open drawer" description for accessibility */
R.string.drawer_close /* "close drawer" description for accessibility */
) {
public void onDrawerClosed(View view) {
getSupportActionBar().setTitle(mTitle);
invalidateOptionsMenu(); // creates call to
// onPrepareOptionsMenu()
}
public void onDrawerOpened(View drawerView) {
getSupportActionBar().setTitle(mDrawerTitle);
invalidateOptionsMenu(); // creates call to
// onPrepareOptionsMenu()
}
};
mDrawerLayout.setDrawerListener(mDrawerToggle);
if (savedInstanceState == null) {
selectItem(0);
}
}
#Override
public boolean onCreateOptionsMenu(com.actionbarsherlock.view.Menu menu) {
return super.onCreateOptionsMenu(menu);
}
#Override
public boolean onOptionsItemSelected(
com.actionbarsherlock.view.MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home: {
if (mDrawerLayout.isDrawerOpen(mDrawerList)) {
mDrawerLayout.closeDrawer(mDrawerList);
} else {
mDrawerLayout.openDrawer(mDrawerList);
}
break;
}
case R.id.action_contact:
// QuickContactFragment dialog = new QuickContactFragment();
// dialog.show(getSupportFragmentManager(), "QuickContactFragment");
// return true;
}
return super.onOptionsItemSelected(item);
}
// The click listener for ListView in the navigation drawer
private class DrawerItemClickListener implements
ListView.OnItemClickListener {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
selectItem(position);
}
}
#Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
// Sync the toggle state after onRestoreInstanceState has occurred.
mDrawerToggle.syncState();
}
#Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
// Pass any configuration change to the drawer toggles
mDrawerToggle.onConfigurationChanged(newConfig);
}
private void selectItem(int position) {
switch (position) {
case 0:
getSupportFragmentManager()
.beginTransaction()
.add(R.id.content,
PageSlidingTabStripFragment.newInstance(),
PageSlidingTabStripFragment.TAG).commit();
break;
default:
SherlockFragment fragment = new PlanetFragment();
Bundle args = new Bundle();
args.putInt(PlanetFragment.ARG_PLANET_NUMBER, position);
fragment.setArguments(args);
getSupportFragmentManager().beginTransaction()
.add(R.id.content, fragment).commit();
break;
}
mDrawerLayout.closeDrawer(mDrawerList);
}
}
Inside PageSlidingTabStripFragment.java
package com.webileapps.navdrawer;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import com.actionbarsherlock.app.SherlockFragment;
import com.astuetz.PagerSlidingTabStrip;
public class PageSlidingTabStripFragment extends Fragment {
public static final String TAG = PageSlidingTabStripFragment.class
.getSimpleName();
public static PageSlidingTabStripFragment newInstance() {
return new PageSlidingTabStripFragment();
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setRetainInstance(true);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
return inflater.inflate(R.layout.pager, container, false);
}
#Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
PagerSlidingTabStrip tabs = (PagerSlidingTabStrip) view
.findViewById(R.id.tabs);
ViewPager pager = (ViewPager) view.findViewById(R.id.pager);
MyPagerAdapter adapter = new MyPagerAdapter(getChildFragmentManager());
pager.setAdapter(adapter);
tabs.setViewPager(pager);
}
public class MyPagerAdapter extends FragmentPagerAdapter {
public MyPagerAdapter(android.support.v4.app.FragmentManager fm) {
super(fm);
}
private final String[] TITLES = { "Categories", "Home", "Top Paid",
"Top Free" };
#Override
public CharSequence getPageTitle(int position) {
return TITLES[position];
}
#Override
public int getCount() {
return TITLES.length;
}
#Override
public SherlockFragment getItem(int position) {
return SuperAwesomeCardFragment.newInstance(position);
}
}
}
Inside PlanetFragment.java
package com.webileapps.navdrawer;
import java.util.Locale;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import com.actionbarsherlock.app.SherlockFragment;
public class PlanetFragment extends SherlockFragment {
public static final String ARG_PLANET_NUMBER = "planet_number";
public PlanetFragment() {
// Empty constructor required for fragment subclasses
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_planet, container,
false);
int i = getArguments().getInt(ARG_PLANET_NUMBER);
String planet = getResources().getStringArray(R.array.planets_array)[i];
int imageId = getResources().getIdentifier(
planet.toLowerCase(Locale.getDefault()), "drawable",
getActivity().getPackageName());
((ImageView) rootView.findViewById(R.id.image))
.setImageResource(imageId);
getActivity().setTitle(planet);
return rootView;
}
}
And finally SuperAwesomeCardFragment.java
package com.webileapps.navdrawer;
import android.os.Bundle;
import android.util.TypedValue;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.FrameLayout;
import android.widget.FrameLayout.LayoutParams;
import android.widget.TextView;
import com.actionbarsherlock.app.SherlockFragment;
public class SuperAwesomeCardFragment extends SherlockFragment{
private static final String ARG_POSITION = "position";
private int position;
public static SuperAwesomeCardFragment newInstance(int position) {
SuperAwesomeCardFragment f = new SuperAwesomeCardFragment();
Bundle b = new Bundle();
b.putInt(ARG_POSITION, position);
f.setArguments(b);
return f;
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
position = getArguments().getInt(ARG_POSITION);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
LayoutParams params = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
FrameLayout fl = new FrameLayout(getActivity());
fl.setLayoutParams(params);
final int margin = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 8, getResources()
.getDisplayMetrics());
TextView v = new TextView(getActivity());
params.setMargins(margin, margin, margin, margin);
v.setLayoutParams(params);
v.setLayoutParams(params);
v.setGravity(Gravity.CENTER);
v.setBackgroundResource(R.drawable.background_card);
v.setText("CARD " + (position + 1));
fl.addView(v);
return fl;
}
}
Hope this Helped :)

Why tabs are not visible inside fragment?

In my app I want to use swipe views of four tabs inside a fragment. The four tabs are contains different fragments each and all the four fragments are sliding by swipe from right to left or vice versa. The fragments are working fine but the tabs are not visible within the fragment. Anyone have any solution for this. Thanks in advance :)
this is the main fragment which contains the tabs:-
public class DashboardTabFragment extends Fragment implements ActionBar.TabListener {
private static final String ARG_SECTION_NUMBER = "arg_section_number";
private String[] tabTitle = {"Cleanness", "Product Display", "Hygiene", "Asm Visits"};
public static DashboardTabFragment newInstance(int position) {
DashboardTabFragment fragment = new DashboardTabFragment();
Bundle args = new Bundle();
args.putInt(ARG_SECTION_NUMBER, position);
fragment.setArguments(args);
return fragment;
}
private ViewPager viewPager;
public DashboardTabFragment() {
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
#TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_dashboard_tab, container, false);
setHasOptionsMenu(true);
ActionBar actionBar = ((ActionBarActivity) getActivity()).getSupportActionBar();
assert actionBar != null;
actionBar.setHomeButtonEnabled(false);
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
actionBar.setHomeButtonEnabled(true);
actionBar.setDisplayOptions(0, ActionBar.DISPLAY_SHOW_TITLE);
viewPager = (ViewPager) rootView.findViewById(R.id.pager);
TabPageAdapter tabPageAdapter = new TabPageAdapter(getActivity().getSupportFragmentManager(), getActivity());
viewPager.setAdapter(tabPageAdapter);
for (String aTabTitle : tabTitle)
actionBar.addTab(actionBar.newTab().setText(aTabTitle).setTabListener(this));
return rootView;
}
This is the adapter for fragments:-
public class TabPageAdapter extends FragmentPagerAdapter {
Context context;
public TabPageAdapter(FragmentManager fm,Context context) {
super(fm);
this.context = context;
}
#Override
public Fragment getItem(int position) {
switch (position) {
case 0:
return new CleannessChartFragment(context);
case 1:
return new ProductDisplayChartFragment(context);
case 2:
return new HygieneChartFragment(context);
case 3:
return new AsmVisitsChartFragment(context);
}
return null;
}
#Override
public int getCount() {
return 4;
}

I found the solution. I used TabHost for tabs with viewpager.
This is my fragment :-
package com.itpp.trt;
import android.annotation.TargetApi;
import android.app.Activity;
import android.graphics.Color;
import android.os.Build;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.app.FragmentTabHost;
import android.support.v4.view.ViewPager;
import android.support.v7.app.ActionBar;
import android.support.v7.app.ActionBarActivity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.TabHost;
public class DashboardTabFragment extends Fragment implements ViewPager.OnPageChangeListener {
private static final String ARG_SECTION_NUMBER = "arg_section_number";
private ViewPager mViewPager;
private TabHost tabHost;
private String[] tabSpec = {"Tab_1", "Tab_2", "Tab_3", "Tab_4"};
private String[] tabTitle = {"Cleanness", "Product Display", "Hygiene", "Asm Visits"};
private TabHost.TabContentFactory mFactory = new TabHost.TabContentFactory() {
#Override
public View createTabContent(String tag) {
View v = new View(getActivity());
v.setMinimumHeight(0);
return v;
}
};
public static DashboardTabFragment newInstance(int position) {
DashboardTabFragment fragment = new DashboardTabFragment();
Bundle args = new Bundle();
args.putInt(ARG_SECTION_NUMBER, position);
fragment.setArguments(args);
return fragment;
}
public DashboardTabFragment() {
tabHost = null;
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
#TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_dashboard_tab, container, false);
mViewPager = (ViewPager) rootView.findViewById(R.id.pager);
mViewPager.setAdapter(new TabPageAdapter(getChildFragmentManager(), getActivity()));
tabHost = (TabHost) rootView.findViewById(android.R.id.tabhost);
tabHost.setup();
mViewPager.setOnPageChangeListener(this);
for (int i = 0; i < tabSpec.length; i++) {
tabHost.addTab(tabHost.newTabSpec(tabSpec[i]).setIndicator(tabTitle[i]).setContent(mFactory));
}
tabHost.setOnTabChangedListener(new TabHost.OnTabChangeListener() {
#Override
public void onTabChanged(String tabId) {
if (tabId.equals("Tab_1")) {
mViewPager.setCurrentItem(0);
} else if (tabId.equals("Tab_2")) {
mViewPager.setCurrentItem(1);
} else if (tabId.equals("Tab_3")) {
mViewPager.setCurrentItem(2);
} else if (tabId.equals("Tab_4")) {
mViewPager.setCurrentItem(3);
}
}
});
return rootView;
}
#Override
public void onAttach(Activity activity) {
super.onAttach(activity);
((MyActivity) activity).onSectionAttached(getArguments().getInt(ARG_SECTION_NUMBER));
}
#Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
}
#Override
public void onPageSelected(int position) {
tabHost.setCurrentTab(position);
}
#Override
public void onPageScrollStateChanged(int state) {
}
#Override
public void onDetach() {
super.onDetach();
}
}
This is my tabpager adapter :-
package com.itpp.trt;
import android.content.Context;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.app.FragmentStatePagerAdapter;
/**
* Created by biswajit on 28-11-14.
*/
public class TabPageAdapter extends FragmentStatePagerAdapter{
Context context;
public TabPageAdapter(FragmentManager fm,Context context) {
super(fm);
this.context = context;
}
#Override
public Fragment getItem(int position) {
switch (position) {
case 0:
return new CleannessChartFragment(context);
case 1:
return new ProductDisplayChartFragment(context);
case 2:
return new HygieneChartFragment(context);
case 3:
return new AsmVisitsChartFragment(context);
}
return null;
}
#Override
public int getCount() {
return 4;
}
}
Hope this helps other. Thanks :)

Where to place MediaPlayer in a fragment?

I would like to make my sound file play automatically when I arrive at a new fragment (by swiping). Right now, the sound doesn't play. Is there perhaps a fundamental difference between
public void OnAttach(Activity Fragment1){
and
public void OnAttach(Fragment Fragment1){
Thanks for any help. Code:
package com.example.test21;
import java.util.Locale;
import android.app.ActionBar;
import android.app.FragmentTransaction;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.View;
import android.view.ViewGroup;
public class MainActivity extends FragmentActivity implements
ActionBar.TabListener {
SectionsPagerAdapter mSectionsPagerAdapter;
ViewPager mViewPager;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final ActionBar actionBar = getActionBar();
actionBar.hide();
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
mSectionsPagerAdapter = new SectionsPagerAdapter(
getSupportFragmentManager());
mViewPager = (ViewPager) findViewById(R.id.pager);
mViewPager.setAdapter(mSectionsPagerAdapter);
mViewPager
.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
#Override
public void onPageSelected(int position) {
actionBar.setSelectedNavigationItem(position);
}
});
for (int i = 0; i < mSectionsPagerAdapter.getCount(); i++) {
actionBar.addTab(actionBar.newTab()
.setText(mSectionsPagerAdapter.getPageTitle(i))
.setTabListener(this));
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
#Override
public void onTabSelected(ActionBar.Tab tab,
FragmentTransaction fragmentTransaction) {
mViewPager.setCurrentItem(tab.getPosition());
}
#Override
public void onTabUnselected(ActionBar.Tab tab,
FragmentTransaction fragmentTransaction) {
}
#Override
public void onTabReselected(ActionBar.Tab tab,
FragmentTransaction fragmentTransaction) {
}
public class SectionsPagerAdapter extends FragmentPagerAdapter {
public SectionsPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int position) {
switch (position) {
case 0:
return new Fragment0();
case 1:
return new Fragment1();
case 2:
return new Fragment2();
default:
return null;
}}
#Override
public int getCount() {
return 3;
}
#Override
public CharSequence getPageTitle(int position) {
Locale l = Locale.getDefault();
switch (position) {
case 0:
return getString(R.string.title_section1).toUpperCase(l);
case 1:
return getString(R.string.title_section2).toUpperCase(l);
case 2:
return getString(R.string.title_section3).toUpperCase(l);
}
return null;
}
}
public static class Fragment0 extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_0, null);
return view;
}
}
public static class Fragment1 extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_1, null);
return view;
}
public void OnAttach(Activity Fragment1){
super.onAttach(Fragment1);
MediaPlayer mp = MediaPlayer.create(Fragment1.getApplication(), R.raw.s1);
mp.start();
}
}
//This fragment is supposed to start the MediaPlayer, but is doesn't
public static class Fragment2 extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_2, null);
return view;
}
}
}

MediaPlayer need a context to instantiate. You are passing in a Fragment. You can create it at onAttach
http://developer.android.com/reference/android/app/Fragment.html#onAttach(android.app.Activity)
http://developer.android.com/guide/components/fragments.html#EventCallbacks

You put it in method onCreateView() if you want play sound when you start new fragment.

Media Player creation needs context but fragment don't have the context
For creating Media Player in a fragment you need to use getActivity() for getting the context
Example:
// creating media player in a fragment
happyBirthdaySong = MediaPlayer.create(getActivity(), R.raw.happy_birthday_female);
happyBirthdaySong.setLooping(true);
happyBirthdaySong.start();

Android: tabs with swipe not showing listfragment

I'm dealing with this tutorial: http://www.lucazanini.eu/2012/android/tabs-and-swipe-views/?lang=en .
The problem is that if I set as layout of the tab a simple static layout, like this (as the tutorial does), everything works fine:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/tab1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:gravity="center">
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="#string/body1" />
</LinearLayout>
But I need the tab to be a ListFragment, and the matter is that my ListFragment shows nothing at all.
Here is the code. Don't desperate: I put lots of code but I think you will probably just need to look at the classes SongsFragment and SongsListAdapter (well, I am not sure because I were it I would not write here, however I suppose it because with a static layout everything works fine!)
EDIT: I post just one listfragment in the exemple, however it seems that every listfragment has the same issue
EDIT: probably the problem is that I need to use a method to show the fragment when the tab is selected
THANKS A LOT
Activity:
import android.app.ActionBar;
import android.app.ActionBar.Tab;
import android.app.FragmentTransaction;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.view.ViewPager;
public class PlayerActivity extends FragmentActivity implements
ActionBar.TabListener {
CollectionPagerAdapter mCollectionPagerAdapter;
ViewPager mViewPager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mCollectionPagerAdapter = new CollectionPagerAdapter(getSupportFragmentManager());
final ActionBar actionBar = getActionBar();
actionBar.setHomeButtonEnabled(false);
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
mViewPager = (ViewPager) findViewById(R.id.pager);
mViewPager.setAdapter(mCollectionPagerAdapter);
mViewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
#Override
public void onPageSelected(int position) {
// When swiping between different app sections, select
// the corresponding tab.
// We can also use ActionBar.Tab#select() to do this if
// we have a reference to the Tab.
actionBar.setSelectedNavigationItem(position);
}
});
for (int i = 0; i < mCollectionPagerAdapter.getCount(); i++) {
actionBar.addTab(actionBar.newTab()
.setText(mCollectionPagerAdapter.getPageTitle(i))
.setTabListener(this));
}
}
public void onTabSelected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
mViewPager.setCurrentItem(tab.getPosition());
}
public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
// TODO Auto-generated method stub
}
public void onTabReselected(Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub
}
}
SongsFragment
import java.util.ArrayList;
import java.util.List;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.ListFragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;
public class SongsFragment extends ListFragment {
import java.util.ArrayList;
import java.util.List;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.ListFragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;
public class SongsFragment extends ListFragment {
List<String[]> songs;
#Override
public void onAttach(Activity activity) {
super.onAttach(activity);
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
songs = SongsDataSource.getInstance().getAllSongs();
List<String[]> values = new ArrayList<String[]>();
if (songs.size() == 0) {
values.add(new String[] { "No files found", "Try to update your database", "" });
}
for (String[] song : songs) {
values.add(new String[] { song[1], song[2], song[0] });
}
SongsListAdapter adapter = new SongsListAdapter(getActivity().getApplicationContext(),
R.layout.songs, R.id.songsFragment_titleTextView,R.id.songsFragment_artistTextView, values);
setListAdapter(adapter);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.songs, container, false);
return view;
}
#Override
public void onListItemClick(ListView l, View v, int position, long id) {
}
}
SongsListAdapter
import java.util.List;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.TextView;
public class SongsListAdapter extends ArrayAdapter<List<String[]>> {
private final Context context;
private final List<String[]> values;
private final Integer listViewId;
private final Integer titleTextViewId;
private final Integer artistTextViewId;
public SongsListAdapter(Context context, Integer listViewId, Integer titleTextViewId,
Integer artistTextViewId, List values) {
super(context, listViewId, values);
this.context = context;
this.listViewId = listViewId;
this.values = values;
this.titleTextViewId = titleTextViewId;
this.artistTextViewId = artistTextViewId;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View rowView = inflater.inflate(listViewId, parent, false);
TextView titleView = (TextView) rowView.findViewById(titleTextViewId);
TextView artistView = (TextView) rowView.findViewById(artistTextViewId);
titleView.setText(values.get(position)[0]);
artistView.setText(values.get(position)[1]);
return rowView;
}
}
PagerAdapter
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
public class CollectionPagerAdapter extends FragmentPagerAdapter {
public CollectionPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int i) {
Fragment fragment = new TabFragment();
Bundle args = new Bundle();
args.putInt(TabFragment.ARG_OBJECT, i);
fragment.setArguments(args);
return fragment;
}
#Override
public int getCount() {
return MyApplication.getInstance().infoFragments.length;
}
#Override
public CharSequence getPageTitle(int position) {
String tabLabel = null;
if(0 <= position && position < MyApplication.getInstance().infoFragments.length) {
tabLabel = MyApplication.getInstance().infoFragments[position].getLabel();
}
return tabLabel;
}
}
TabFragment class:
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
/**
* A fragment that launches other parts of the demo application.
*/
public class TabFragment extends Fragment {
public static final String ARG_OBJECT = "object";
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
Bundle args = getArguments();
int position = args.getInt(ARG_OBJECT);
int tabLayout = 0;
if(0 <= position && position < MyApplication.getInstance().infoFragments.length) {
tabLayout = MyApplication.getInstance().infoFragments[position].getLayout();
}
View rootView = inflater.inflate(tabLayout, container, false);
return rootView;
}
}
MyApplication class
import android.app.Application;
public class MyApplication extends Application {
//SIGLETON DECLARATION
private static MyApplication mInstance = null;
public static MyApplication getInstance() {
if (mInstance == null) {
mInstance = new MyApplication();
}
return mInstance;
}
public static InfoFragment[] infoFragments = new InfoFragment[] {
new InfoFragment("Songs", R.layout.songs)
};
public static class InfoFragment {
private String label;
private int layout;
public InfoFragment(String label, int layout) {
this.label = label;
this.layout = layout;
}
public String getLabel() {
return label;
}
public int getLayout() {
return layout;
}
}
}

Oh, it seems like you never actually return your SongsFragment in your getItem() method. It actually seems like you never use it!
#Override
public Fragment getItem(int i) {
Fragment fragment = new TabFragment();
Bundle args = new Bundle();
args.putInt(TabFragment.ARG_OBJECT, i);
fragment.setArguments(args);
return fragment;
}