Develop Reference

FirebaseRecyclerAdapter OnItemClick from fragment to fragment

I'm using the firebaseRecyclerAdaper on a fragment and i want to open an item from de populated list from firebase and send the data to a new fragment. Can u guys tell me please how can i start the FragmentDetail from the onCLickListener on FragmentAllPosts and pass the PostModel parameter to it?
Main Activity:
public class MainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
private static final String TAG = "TAG" ;
private FirebaseAuth firebaseAuth;
private DatabaseReference databaseReference , postsRef;
private StorageReference profileImgRef;
private CircleImageView circleImageViewMain;
private TextView nameEdtTxt, emailEdtTxt;
Fragment fragment= null;
private RecyclerView recyclerView;
private FloatingActionButton fab;
private ProgressDialog progressDialog;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
progressDialog= new ProgressDialog(this);
progressDialog.setMessage("Please wait!");
progressDialog.setCanceledOnTouchOutside(false);
//Initialize Firebase modules
firebaseAuth=FirebaseAuth.getInstance();
databaseReference= FirebaseDatabase.getInstance().getReference().child("users");
postsRef= FirebaseDatabase.getInstance().getReference().child("posts");
profileImgRef= FirebaseStorage.getInstance().getReference();
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.addDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
View header = navigationView.getHeaderView(0);
circleImageViewMain = (CircleImageView) header.findViewById(R.id.circleImageHeader);
nameEdtTxt = (TextView) header.findViewById(R.id.txtName);
emailEdtTxt =(TextView)header.findViewById(R.id.txtEmail);
if (firebaseAuth.getCurrentUser()!=null){
LoadUserData(CheckUserDataBase());
}
ViewPager vp_pages= (ViewPager) findViewById(R.id.vp_pages);
PagerAdapter pagerAdapter=new FragmentAdapter(getSupportFragmentManager());
vp_pages.setAdapter(pagerAdapter);
TabLayout tbl_pages= (TabLayout) findViewById(R.id.tabs);
tbl_pages.setupWithViewPager(vp_pages);
tbl_pages.setTabTextColors(ColorStateList.valueOf(Color.parseColor("#FFFFFF")));
tbl_pages.setHorizontalScrollBarEnabled(true);
fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
fragment= new AddPostFrag();
FragmentManager fragmentManager = getSupportFragmentManager();
FragmentTransaction transaction= fragmentManager.beginTransaction();
transaction.add(R.id.add_post_container, fragment).commit();
fab.hide();
}
});
}
class FragmentAdapter extends FragmentPagerAdapter {
public FragmentAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int position) {
switch (position){
case 0:
return new FragmentAllPosts();
case 1:
return new FragmentLosts();
case 2:
return new FragmentFounds();
}
return null;
}
#Override
public int getCount() {
return 3;
}
#Override
public CharSequence getPageTitle(int position) {
switch (position){
//
//Your tab titles
//
case 0:return "All";
case 1:return "Losts";
case 2: return "Founds";
default:return null;
}
}
}
#Override
protected void onStart() {
super.onStart();
FirebaseUser user= firebaseAuth.getCurrentUser();
if (user == null){
SendUserToLogin();
} else {
CheckUserDataBase();
}
}
public static class PostsViewHolder extends RecyclerView.ViewHolder {
CircleImageView circleImageView;
ImageView imageView;
TextView authorNdate, location, description;
public PostsViewHolder(#NonNull View itemView) {
super(itemView);
circleImageView= itemView.findViewById(R.id.circleImageView_cv);
imageView= itemView.findViewById(R.id.imageView_cv);
authorNdate= itemView.findViewById(R.id.author_date_cv);
location = itemView.findViewById(R.id.location_cv);
description = itemView.findViewById(R.id.description_cv);
}
}
private void UpdateHome() {
}
private void LoadUserData(final String uid) {
try {
final File localFile =File.createTempFile("profile","png");
StorageReference filepath=profileImgRef.child(uid).child("profileImg/profile.png");
filepath.getFile(localFile)
.addOnSuccessListener(new OnSuccessListener<FileDownloadTask.TaskSnapshot>() {
#Override
public void onSuccess(FileDownloadTask.TaskSnapshot taskSnapshot) {
Picasso.get()
.load(localFile)
.placeholder(R.drawable.ic_account)
.into(circleImageViewMain);
}
}).addOnFailureListener(new OnFailureListener() {
#Override
public void onFailure(#NonNull Exception e) {
Toast.makeText(MainActivity.this,
"Profile photo not found, please update your profile!",
Toast.LENGTH_SHORT).show();
SendUserToSetup();
}
});
} catch (IOException e) {
e.printStackTrace();
}
databaseReference.child(uid).child("userInfo").addValueEventListener(
new ValueEventListener() {
#Override
public void onDataChange(#NonNull DataSnapshot dataSnapshot) {
if (dataSnapshot.hasChild("name")){
String name = dataSnapshot.child("name").getValue().toString();
nameEdtTxt.setText(name);
String email = dataSnapshot.child("email").getValue().toString();
emailEdtTxt.setText(email);
} else {
Toast.makeText(MainActivity.this,
"Profile name does not exists, please update your profile",
Toast.LENGTH_SHORT).show();
}
}
#Override
public void onCancelled(#NonNull DatabaseError databaseError) {
}
}
);
}
#Override
protected void onStop() {
super.onStop();
}
private String CheckUserDataBase() {
final String userID =firebaseAuth.getCurrentUser().getUid();
databaseReference.addValueEventListener(
new ValueEventListener() {
#Override
public void onDataChange(#NonNull DataSnapshot dataSnapshot) {
if (!dataSnapshot.child(userID).hasChild("userInfo")){
SendUserToSetup();
} else {
UpdateHome();
}
}
#Override
public void onCancelled(#NonNull DatabaseError databaseError) {
}
}
);
return userID;
}
private void SendUserToSetup() {
Intent i = new Intent(this,SetupActivity.class);
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(i);
}
private void SendUserToLogin() {
Intent i = new Intent(this,LoginActivity.class);
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(i);
}
#Override
public void onBackPressed() {
DrawerLayout drawer = findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else if (getSupportFragmentManager().getBackStackEntryCount() >0)
{
getSupportFragmentManager().beginTransaction().remove(fragment).commit();
} else
{
super.onBackPressed();
}
fab.show();
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
#SuppressWarnings("StatementWithEmptyBody")
#Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
switch (id){
case R.id.nav_home:
super.onResume();
if (fragment!=null){
FragmentManager fragmentManager = getSupportFragmentManager();
FragmentTransaction transaction= fragmentManager.beginTransaction();
transaction.remove(fragment).commit();
fab.show();
}
break;
case R.id.nav_profile:
super.onPause();
break;
case R.id.nav_my_posts:
super.onPause();
break;
case R.id.nav_messeges:
super.onPause();
break;
case R.id.nav_settings:
super.onPause();
break;
case R.id.nav_logout:
SendUserToLogin();
firebaseAuth.signOut();
break;
}
DrawerLayout drawer = findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
}
Fragment with the FirebaseRecyclerAdapter
public class FragmentAllPosts extends Fragment {
// TODO: Rename parameter arguments, choose names that match
// the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
private static final String ARG_PARAM1 = "param1";
private static final String ARG_PARAM2 = "param2";
// TODO: Rename and change types of parameters
private String mParam1;
private String mParam2;
private OnFragmentInteractionListener mListener;
private DatabaseReference postsRef;
private Context context= getContext();
Fragment mFragment;
Bundle mBundle;
public FragmentAllPosts() {
// Required empty public constructor
}
public static FragmentAllPosts newInstance(String param1, String param2) {
FragmentAllPosts fragment = new FragmentAllPosts();
Bundle args = new Bundle();
args.putString(ARG_PARAM1, param1);
args.putString(ARG_PARAM2, param2);
fragment.setArguments(args);
return fragment;
}
private RecyclerView recyclerAllPosts;
private ProgressDialog progressDialog;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
mParam1 = getArguments().getString(ARG_PARAM1);
mParam2 = getArguments().getString(ARG_PARAM2);
}
progressDialog= new ProgressDialog(getActivity());
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_all_posts,container,false);
postsRef= FirebaseDatabase.getInstance().getReference().child("posts");
recyclerAllPosts= v.findViewById(R.id.recycler_all_posts);
LinearLayoutManager linearLayoutManager = new LinearLayoutManager(getActivity());
linearLayoutManager.setReverseLayout(true);
linearLayoutManager.setStackFromEnd(true);
recyclerAllPosts.setLayoutManager(linearLayoutManager);
return v;
}
#Override
public void onAttach(Context context) {
super.onAttach(context);
this.context=context;
}
#Override
public void onStart() {
super.onStart();
progressDialog.show();
FirebaseRecyclerOptions<PostsModel> options=
new FirebaseRecyclerOptions.Builder<PostsModel>()
.setQuery(postsRef,PostsModel.class)
.setLifecycleOwner(this)
.build();
FirebaseRecyclerAdapter<PostsModel,PostsViewHolder> adapter=
new FirebaseRecyclerAdapter<PostsModel, PostsViewHolder>(options) {
#Override
protected void onBindViewHolder(#NonNull final PostsViewHolder holder, int position, #NonNull final PostsModel model) {
String processedTime= CalculateTime(model.getData());
Picasso.get().load(Uri.parse(model.getUserImg())).into(holder.circleImageView);
Picasso.get().load(Uri.parse(model.getImageUri())).into(holder.imageView);
holder.authorNdate.setText(model.getAuthor()+" updated "+processedTime);
holder.location.setText(model.getLocation());
holder.description.setText(model.getDescription());
holder.itemView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Fragment frag= new FragmentDetail();
getFragmentManager().beginTransaction().replace(R.id.add_post_container,frag)
.addToBackStack(null).commit();
}
});
}
#NonNull
#Override
public PostsViewHolder onCreateViewHolder(#NonNull ViewGroup viewGroup, int i) {
View view= LayoutInflater.from(viewGroup.getContext())
.inflate(R.layout.card_view,viewGroup,false );
PostsViewHolder viewHolder= new PostsViewHolder(view);
return viewHolder;
}
};
recyclerAllPosts.setAdapter(adapter);
progressDialog.dismiss();
adapter.startListening();
}
// TODO: Rename method, update argument and hook method into UI event
public void onButtonPressed(Uri uri) {
if (mListener != null) {
mListener.onFragmentInteraction(uri);
}
}
public String CalculateTime(String inputTime){
String timeOut;
Calendar currentTime= Calendar.getInstance();
SimpleDateFormat dateFormat= new SimpleDateFormat(getString(R.string.date_format));
dateFormat.format(currentTime.getTime());
SimpleDateFormat postFormat= new SimpleDateFormat(getString(R.string.date_format));
Calendar postTime = Calendar.getInstance();
try {
Date datePost=postFormat.parse(inputTime);
postTime.setTime(datePost);
} catch (ParseException e) {
e.printStackTrace();
}
long timeCurrent= currentTime.getTimeInMillis();
long timePost = postTime.getTimeInMillis();
long diff= timeCurrent- timePost;
long minutes= diff/(60*1000);
long hours = diff/(60 * 60 * 1000);
long days = diff/(24 * 60 * 60 * 1000);
if (minutes<59 && minutes>1){
timeOut=Long.toString(minutes)+" mins ago";
} else if (minutes<1){
timeOut=" just now";
}else if (hours<24 && minutes>59){
timeOut=Long.toString(hours)+" hour(s) ago";
}else {
timeOut=Long.toString(days)+" day(s) ago";
}
return timeOut;
}
static class PostsViewHolder extends RecyclerView.ViewHolder {
CircleImageView circleImageView;
ImageView imageView;
TextView authorNdate, location, description;
public PostsViewHolder(#NonNull View itemView) {
super(itemView);
itemView.setTag(this);
circleImageView= itemView.findViewById(R.id.circleImageView_cv);
imageView= itemView.findViewById(R.id.imageView_cv);
authorNdate= itemView.findViewById(R.id.author_date_cv);
location = itemView.findViewById(R.id.location_cv);
description = itemView.findViewById(R.id.description_cv);
}
}
#Override
public void onDetach() {
super.onDetach();
mListener = null;
}
public interface OnFragmentInteractionListener {
// TODO: Update argument type and name
void onFragmentInteraction(Uri uri);
}
}
Detail Fragment:
public class FragmentDetail extends Fragment {
public FragmentDetail() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_detail, container, false);
}
}

I'd suggest a read on the documentation. Passing data between two activities should be done via interfaces.
As suggested by the official site

RecycleView on Fragment using Custom Adapter with Retrofit

public class AgentAdapter extends RecyclerView.Adapter<AgentAdapter.CustomViewHolder> {
private List<Agent> agentList;
private Context mContext;
public AgentAdapter(Context context, List<Agent> agentList) {
this.agentList= agentList;
this.mContext = context;
}
#Override
public CustomViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
View view = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.agent_row, null);
CustomViewHolder viewHolder = new CustomViewHolder(view);
return viewHolder;
}
#Override
public void onBindViewHolder(CustomViewHolder customViewHolder, int i) {
final Agent agent = agentList.get(i);
//Setting text view title
customViewHolder.textViewAgentName.setText(agent.getAgentName());
customViewHolder.textViewAgentPhone.setText(agent.getAgentPhone());
customViewHolder.textViewAgentRegion.setText(agent.getRegion());
customViewHolder.textViewAgentStatus.setText(agent.getAgentStatus());
View.OnClickListener listener = new View.OnClickListener() {
#Override
public void onClick(View v) {
onItemClickListener.onItemClick(agent);
}
};
customViewHolder.textViewAgentName.setOnClickListener(listener);
}
#Override
public int getItemCount() {
return (null != agentList ? agentList.size() : 0);
}
public void updateAnswers(List<Agent>agent ) {
agentList = agent;
notifyDataSetChanged();
}
class CustomViewHolder extends RecyclerView.ViewHolder {
protected TextView textViewAgentName;
protected TextView textViewAgentPhone;
protected TextView textViewAgentRegion;
protected TextView textViewAgentStatus;
public CustomViewHolder(View view) {
super(view);
this.textViewAgentName = (TextView) view.findViewById(R.id.textAgentName);
this.textViewAgentPhone= (TextView) view.findViewById(R.id.textAgentPhone);
this.textViewAgentRegion = (TextView) view.findViewById(R.id.textAgentRegion);
this.textViewAgentStatus = (TextView) view.findViewById(R.id.textAgentStatus);
}
}
private OnItemClickListener onItemClickListener;
public OnItemClickListener getOnItemClickListener() {
return onItemClickListener;
}
public void setOnItemClickListener(OnItemClickListener onItemClickListener) {
this.onItemClickListener = onItemClickListener;
}
That's my fragment and this is my Adapter
public class AgentAdapter extends RecyclerView.Adapter<AgentAdapter.CustomViewHolder> {
private List<Agent> agentList;
private Context mContext;
public AgentAdapter(Context context, List<Agent> agentList) {
this.agentList= agentList;
this.mContext = context;
}
#Override
public CustomViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
View view = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.agent_row, null);
CustomViewHolder viewHolder = new CustomViewHolder(view);
return viewHolder;
}
#Override
public void onBindViewHolder(CustomViewHolder customViewHolder, int i) {
final Agent agent = agentList.get(i);
//Setting text view title
customViewHolder.textViewAgentName.setText(agent.getAgentName());
customViewHolder.textViewAgentPhone.setText(agent.getAgentPhone());
customViewHolder.textViewAgentRegion.setText(agent.getRegion());
customViewHolder.textViewAgentStatus.setText(agent.getAgentStatus());
View.OnClickListener listener = new View.OnClickListener() {
#Override
public void onClick(View v) {
onItemClickListener.onItemClick(agent);
}
};
customViewHolder.textViewAgentName.setOnClickListener(listener);
}
#Override
public int getItemCount() {
return (null != agentList ? agentList.size() : 0);
}
public void updateAnswers(List<Agent>agent ) {
agentList = agent;
notifyDataSetChanged();
}
class CustomViewHolder extends RecyclerView.ViewHolder {
protected TextView textViewAgentName;
protected TextView textViewAgentPhone;
protected TextView textViewAgentRegion;
protected TextView textViewAgentStatus;
public CustomViewHolder(View view) {
super(view);
this.textViewAgentName = (TextView) view.findViewById(R.id.textAgentName);
this.textViewAgentPhone= (TextView) view.findViewById(R.id.textAgentPhone);
this.textViewAgentRegion = (TextView) view.findViewById(R.id.textAgentRegion);
this.textViewAgentStatus = (TextView) view.findViewById(R.id.textAgentStatus);
}
}
private OnItemClickListener onItemClickListener;
public OnItemClickListener getOnItemClickListener() {
return onItemClickListener;
}
public void setOnItemClickListener(OnItemClickListener onItemClickListener) {
this.onItemClickListener = onItemClickListener;
}
and this is my MainActivity
public class MainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main2);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
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.addDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
//add this line to display menu1 when the activity is loaded
displaySelectedScreen(R.id.nav_menu2);
}
#Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
#SuppressWarnings("StatementWithEmptyBody")
#Override
public boolean onNavigationItemSelected(MenuItem item) {
displaySelectedScreen(item.getItemId());
return true;
}
private void displaySelectedScreen(int itemId) {
//creating fragment object
Fragment fragment = null;
//initializing the fragment object which is selected
switch (itemId) {
case R.id.nav_menu1:
fragment = new caseFragment();
break;
case R.id.nav_menu2:
fragment = new testFragment();
break;
}
//replacing the fragment
if (fragment != null) {
FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
ft.replace(R.id.content_frame, fragment);
ft.commit();
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
}
when i tried to open my fragment, the app crashed and the logcat is blank.
previously i could show my json data from activity but now when i tried to use fragment instead, it crashed.
Im using java and android studio.
Anyone know why? Thx in advance.

How to add back button animation to Hamburger button animation

I am using appcompat v7 and support design 23.1.1.
I want to add back button in the hamburger button animation, when back pressed application will go back to started page.
Now in my application I have hamburger button. When it is pressed in main window (marked with orange rectangle) material navigation opens, selected Home (marked as red rectangle) when the application navigates to selected window there are hamburger (yellow rectangle) button again, and I would like to change it.
My MainActivity.java:
public class MainActivity extends AppCompatActivity implements FragmentDrawer.FragmentDrawerListener {
private static String TAG = MainActivity.class.getSimpleName();
private Toolbar mToolbar;
private TabLayout tabLayout;
private ViewPager viewPager;
private FragmentDrawer drawerFragment;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
viewPager = (ViewPager) findViewById(R.id.view_pager);
viewPager.setAdapter(new PagerAdapter(this));
viewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout));
tabLayout = (TabLayout) findViewById(R.id.tab_layout);
tabLayout.setupWithViewPager(viewPager);
mToolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(mToolbar);
mToolbar.setNavigationOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
getSupportFragmentManager().popBackStack();
}
});
drawerFragment = (FragmentDrawer)
getSupportFragmentManager().findFragmentById(R.id.fragment_navigation_drawer);
drawerFragment.setUp(R.id.fragment_navigation_drawer, (DrawerLayout) findViewById(R.id.drawer_layout), mToolbar);
drawerFragment.setDrawerListener(this);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.action_settings:
return true;
case R.id.action_search:
Toast.makeText(getApplicationContext(), "Search action is selected!", Toast.LENGTH_SHORT).show();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
#Override
public void onDrawerItemSelected(View view, int position) {
displayView(position);
}
private void displayView(int position) {
Fragment fragment = null;
String title = getString(R.string.app_name);
switch (position) {
case 0:
fragment = new HomeFragment();
title = getString(R.string.title_home);
break;
case 1:
fragment = new FriendsFragment();
title = getString(R.string.title_friends);
break;
case 2:
fragment = new MessagesFragment();
title = getString(R.string.title_messages);
break;
default:
break;
}
if (fragment != null) {
getSupportFragmentManager()
.beginTransaction()
.replace(R.id.container, fragment)
.addToBackStack(fragment.getClass().getSimpleName())
.commit();
mToolbar.setTitle(title);
}
}
}
FragmentDrawer.java:
public class FragmentDrawer extends Fragment {
private static String TAG = FragmentDrawer.class.getSimpleName();
private RecyclerView recyclerView;
private ActionBarDrawerToggle mDrawerToggle;
private DrawerLayout mDrawerLayout;
private NavigationDrawerAdapter adapter;
private View containerView;
private static String[] titles = null;
private FragmentDrawerListener drawerListener;
public FragmentDrawer() {
}
public void setDrawerListener(FragmentDrawerListener listener) {
this.drawerListener = listener;
}
public static List<NavDrawerItem> getData() {
List<NavDrawerItem> data = new ArrayList<>();
// preparing navigation drawer items
for (int i = 0; i < titles.length; i++) {
NavDrawerItem navItem = new NavDrawerItem();
navItem.setTitle(titles[i]);
data.add(navItem);
}
return data;
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// drawer labels
titles = getActivity().getResources().getStringArray(R.array.nav_drawer_labels);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflating view layout
View layout = inflater.inflate(R.layout.fragment_navigation_drawer, container, false);
recyclerView = (RecyclerView) layout.findViewById(R.id.drawerList);
adapter = new NavigationDrawerAdapter(getActivity(), getData());
recyclerView.setAdapter(adapter);
recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
recyclerView.addOnItemTouchListener(new RecyclerTouchListener(getActivity(), recyclerView, new ClickListener() {
#Override
public void onClick(View view, int position) {
drawerListener.onDrawerItemSelected(view, position);
mDrawerLayout.closeDrawer(containerView);
}
#Override
public void onLongClick(View view, int position) {
}
}));
return layout;
}
public void setUp(int fragmentId, DrawerLayout drawerLayout, final Toolbar toolbar) {
containerView = getActivity().findViewById(fragmentId);
mDrawerLayout = drawerLayout;
mDrawerToggle = new ActionBarDrawerToggle(getActivity(), drawerLayout, toolbar, R.string.drawer_open, R.string.drawer_close) {
#Override
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
getActivity().invalidateOptionsMenu();
}
#Override
public void onDrawerClosed(View drawerView) {
super.onDrawerClosed(drawerView);
getActivity().invalidateOptionsMenu();
}
#Override
public void onDrawerSlide(View drawerView, float slideOffset) {
super.onDrawerSlide(drawerView, slideOffset);
toolbar.setAlpha(1 - slideOffset / 2);
}
};
mDrawerLayout.setDrawerListener(mDrawerToggle);
mDrawerLayout.post(new Runnable() {
#Override
public void run() {
mDrawerToggle.syncState();
}
});
}
public static interface ClickListener {
public void onClick(View view, int position);
public void onLongClick(View view, int position);
}
static class RecyclerTouchListener implements RecyclerView.OnItemTouchListener {
private GestureDetector gestureDetector;
private ClickListener clickListener;
public RecyclerTouchListener(Context context, final RecyclerView recyclerView, final ClickListener clickListener) {
this.clickListener = clickListener;
gestureDetector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() {
#Override
public boolean onSingleTapUp(MotionEvent e) {
return true;
}
#Override
public void onLongPress(MotionEvent e) {
View child = recyclerView.findChildViewUnder(e.getX(), e.getY());
if (child != null && clickListener != null) {
clickListener.onLongClick(child, recyclerView.getChildPosition(child));
}
}
});
}
#Override
public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent e) {
View child = rv.findChildViewUnder(e.getX(), e.getY());
if (child != null && clickListener != null && gestureDetector.onTouchEvent(e)) {
clickListener.onClick(child, rv.getChildPosition(child));
}
return false;
}
#Override
public void onTouchEvent(RecyclerView rv, MotionEvent e) {
}
#Override
public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {
}
}
public interface FragmentDrawerListener {
public void onDrawerItemSelected(View view, int position);
}
}
NavDrawerItem.java:
public class NavDrawerItem {
private boolean showNotify;
private String title;
public NavDrawerItem() {
}
public NavDrawerItem(boolean showNotify, String title) {
this.showNotify = showNotify;
this.title = title;
}
public boolean isShowNotify() {
return showNotify;
}
public void setShowNotify(boolean showNotify) {
this.showNotify = showNotify;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
}
DrawerActivity.java :
public class DrawerActivity extends AppCompatActivity implements FragmentDrawer.FragmentDrawerListener{
private Toolbar mToolbar;
private FragmentDrawer drawerFragment;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ButterKnife.bind(this);
mToolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(mToolbar);
drawerFragment = (FragmentDrawer)
getSupportFragmentManager().findFragmentById(R.id.fragment_navigation_drawer);
drawerFragment.setUp(R.id.fragment_navigation_drawer, (DrawerLayout) findViewById(R.id.drawer_layout), mToolbar);
drawerFragment.setDrawerListener(this);
// display the first navigation drawer view on app launch
displayView(0);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.action_settings:
return true;
case R.id.action_search:
Toast.makeText(getApplicationContext(), "Search action is selected!", Toast.LENGTH_SHORT).show();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
#Override
public void onDrawerItemSelected(View view, int position) {
displayView(position);
}
private void displayView(int position) {
Fragment fragment = null;
String title = getString(R.string.app_name);
switch (position) {
case 0:
fragment = new HomeFragment();
title = getString(R.string.title_home);
break;
case 1:
fragment = new FriendsFragment();
title = getString(R.string.title_friends);
break;
case 2:
fragment = new MessagesFragment();
title = getString(R.string.title_messages);
break;
default:
break;
}
if (fragment != null) {
FragmentManager fragmentManager = getSupportFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.replace(R.id.container, fragment);
fragmentTransaction.commit();
// set the toolbar title
getSupportActionBar().setTitle(title);
}
}
}

Try this way in your xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="56dp"
android:layout_gravity="start"
android:background="#android:color/transparent"
android:minHeight="?attr/actionBarSize"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light"
app:theme="#style/toolBarStyle"
app:titleTextAppearance="#style/Toolbar.TitleText" />
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#+id/toolbar"
android:fitsSystemWindows="true">
<RelativeLayout
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="0dp"
android:background="#android:color/transparent" />
<fragment
android:id="#+id/navigation_drawer"
class="com.buzzintown.consumer.drawer.NavigationDrawerFragment"
android:layout_width="310dp"
android:layout_height="match_parent"
android:layout_gravity="start"
tools:layout="#layout/drawer_layout" />
</android.support.v4.widget.DrawerLayout>
</RelativeLayout>

If the activity figured in your third picture is a new one, you can just add the follow code in the new activity`s onCreate() method. it may help...
final ActionBar toolbar = getSupportActionBar();
if (toolbar != null) {
toolbar.setDisplayHomeAsUpEnabled(true);
}
If it`s in one same activity, and just different fragments through viewpager, use the Toolbar.setNavigationIcon() to change your up icon.

Parsing string during fragment creation

in an application , I wish I would pass a string fragment and display it in a toast.
The problem is with my code, the creation of the fragment I have a toast that appears, but empty ...
I do not understand where did my problem ( it's the first time I try to do that )
My code :
MainActivity :
public class MainActivity extends ActionBarActivity
implements NavigationDrawerCallbacks {
private NavigationDrawerFragment mNavigationDrawerFragment;
private Toolbar mToolbar;
private CharSequence mUrl;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mToolbar = (Toolbar) findViewById(R.id.toolbar_actionbar);
setSupportActionBar(mToolbar);
mNavigationDrawerFragment = (NavigationDrawerFragment)
getFragmentManager().findFragmentById(R.id.fragment_drawer);
// Set up the drawer.
mNavigationDrawerFragment.setup(R.id.fragment_drawer, (DrawerLayout) findViewById(R.id.drawer), mToolbar);
}
#Override
public void onNavigationDrawerItemSelected(int position) {
Fragment objFragment = null;
switch (position) {
case 0:
Intent intent = new Intent(MainActivity.this, fragment_test.class);
intent.putExtra("message", "test");
objFragment = new fragment_test();
break;
case 1:
objFragment = new menu2_Fragment();
break;
case 2:
objFragment = new menu3_Fragment();
break;
case 3:
objFragment = new menu4_Fragment();
break;
case 4:
objFragment = new menu5_Fragment();
break;
case 5:
objFragment = new menu6_Fragment();
break;
case 6:
objFragment = new menu8_Fragment();
break;
case 7:
objFragment = new menu9_Fragment();
break;
case 8:
objFragment = new menu7_Fragment();
break;
}
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.container, objFragment)
.commit();
}
#Override
public void onBackPressed() {
if (mNavigationDrawerFragment.isDrawerOpen())
mNavigationDrawerFragment.closeDrawer();
else
super.onBackPressed();
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
if (!mNavigationDrawerFragment.isDrawerOpen()) {
// Only show items in the action bar relevant to this screen
// if the drawer is not showing. Otherwise, let the drawer
// decide what to show in the action bar.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
return super.onCreateOptionsMenu(menu);
}
/*#Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
return super.onOptionsItemSelected(item);
}*/}
Fragment_test :
public class fragment_test extends Fragment {
View rootview;
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
rootview = inflater.inflate(R.layout.xml1, container, false);
Intent intent = getActivity().getIntent();
String message = intent.getStringExtra("message");
Toast toast = Toast.makeText(getActivity(), message, Toast.LENGTH_LONG);
toast.show();
return rootview;
}}
thx in advance
ps : sorry for my english french

Your code
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction().replace(R.id.container, objFragment).commit();
Replace with
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction().replace(R.id.container, objFragment).commit();
Bundle bundle = new Bundle();
bundle.putString(key, value);
objFragment.setArguments(bundle);
Write below code in your another activity
if (getArguments() != null)
{
m_searchText = getArguments().getString(Key);
}

Logo is not showing up on action bar

I'm trying to simply put a logo on my ActionBar in android but nothing seems to be working. I have literally tried every solution I could find on this website and others without any luck. Any help would be appreciated,
Jacob
Here is my java:
public class Home extends ActionBarActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
setTheme(R.style.AppTheme);
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
getSupportActionBar().setDisplayUseLogoEnabled(true);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setLogo(R.drawable.ic_launcher);
mNavItems.add(new NavItem("Home", "Find everything you need to know in one place", R.drawable.home_icon));
mNavItems.add(new NavItem("Learn About Our Programs", "Learn about what we do to help the city", R.drawable.list));
mNavItems.add(new NavItem("About Us", "Get to know about us on the personal level", R.drawable.info_circled_alt));
mNavItems.add(new NavItem("Contact Us", "Want to know more about something? Send us an email or phone call", R.drawable.questionm));
// DrawerLayout
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawerLayout);
mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START);
// Populate the Navigtion Drawer with options
mDrawerPane = (RelativeLayout) findViewById(R.id.drawerPane);
mDrawerList = (ListView) findViewById(R.id.navList);
DrawerListAdapter adapter = new DrawerListAdapter(this, mNavItems);
mDrawerList.setAdapter(adapter);
// Drawer Item click listeners
mDrawerList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
selectItemFromDrawer(position);
}
});
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout, R.string.drawer_opem, R.string.drawer_close) {
#Override
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
invalidateOptionsMenu();
}
#Override
public void onDrawerClosed(View drawerView) {
super.onDrawerClosed(drawerView);
Log.d(TAG, "onDrawerClosed: " + getTitle());
invalidateOptionsMenu();
}
};
mDrawerLayout.setDrawerListener(mDrawerToggle);
}
#Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
mDrawerToggle.syncState();
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Pass the event to ActionBarDrawerToggle
// If it returns true, then it has handled
// the nav drawer indicator touch event
if (mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
// Handle your other action bar items...
return super.onOptionsItemSelected(item);
}
private void selectItemFromDrawer(int position) {
// Close the drawer
mDrawerLayout.closeDrawer(mDrawerPane);
Intent intent;
switch (position) {
case 0:
new Handler().postDelayed(new Runnable() {
#Override
public void run() {
Intent i = new Intent(Home.this, Home.class);
i.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_NO_ANIMATION);
startActivity(i);
overridePendingTransition(R.animator.animation1, R.animator.animation2);
}
}, 300);
break;
case 1:
new Handler().postDelayed(new Runnable() {
#Override
public void run() {
Intent i = new Intent(Home.this, FindOpp.class);
i.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_NO_ANIMATION);
startActivity(i);
overridePendingTransition(R.animator.animation1, R.animator.animation2);;
}
}, 300);
break;
case 2:
new Handler().postDelayed(new Runnable() {
#Override
public void run() {
Intent i = new Intent(Home.this, About_Us.class);
i.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_NO_ANIMATION);
startActivity(i);
overridePendingTransition(R.animator.animation1, R.animator.animation2);;
}
}, 300);
break;
}
}
}
class NavItem {
String mTitle;
String mSubtitle;
int mIcon;
public NavItem(String title, String subtitle, int icon) {
mTitle = title;
mSubtitle = subtitle;
mIcon = icon;
}
}
class DrawerListAdapter extends BaseAdapter {
Context mContext;
ArrayList<NavItem> mNavItems;
public DrawerListAdapter(Context context, ArrayList<NavItem> navItems) {
mContext = context;
mNavItems = navItems;
}
#Override
public int getCount() {
return mNavItems.size();
}
#Override
public Object getItem(int position) {
return mNavItems.get(position);
}
#Override
public long getItemId(int position) {
return 0;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View view;
if (convertView == null) {
LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = inflater.inflate(R.layout.drawer_item, null);
}
else {
view = convertView;
}
TextView titleView = (TextView) view.findViewById(R.id.title);
TextView subtitleView = (TextView) view.findViewById(R.id.subTitle);
ImageView iconView = (ImageView) view.findViewById(R.id.icon);
titleView.setText( mNavItems.get(position).mTitle );
subtitleView.setText( mNavItems.get(position).mSubtitle );
iconView.setImageResource(mNavItems.get(position).mIcon);
return view;
}
}
class PreferencesFragment extends Fragment {
public PreferencesFragment() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_prefences, container, false);
}
}

This may help you , try this
getSupportActionBar().setDisplayShowHomeEnabled(true);
getSupportActionBar().setIcon(R.drawable.ic_launcher);