I am working on my app and I just implemented a bottom navigation that scrolls through fragments when the respected tab is selected. I added a recyclerview also into my home fragment. Everything works properly except for one issue. When I open the app, the app will load into the Home Fragment, which I want, but the alerts icon is selected and the text box is selected, which I don't want. When I click on any of the icons, the fragments work the way they should. I just want the app to open, and load the app on the home fragment with the home icon selected and the searchbox isn't selected. I have attached images at the bottom to show what I mean. I have been looking and trying everything but know luck. How can I solve this?
I didn't post my entire alerts/favorite fragment code but the XML is just a simple text box and the java code is just the standard below for both:
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_"alert or favs", container, false);
Main Activity
public class MainActivity extends AppCompatActivity implements
BottomNavigationView.OnNavigationItemSelectedListener{
private FirebaseAuth firebaseAuth;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
firebaseAuth = FirebaseAuth.getInstance();
loadFragment(new HomeFragment());
BottomNavigationView navigation= findViewById(R.id.bottom_navigation);
navigation.setOnNavigationItemSelectedListener(this);
}
private void user_logout() {
firebaseAuth.signOut();
finish();
startActivity(new Intent(MainActivity.this, SignIn.class));
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.logoutMenu: {
user_logout();
}
}
return super.onOptionsItemSelected(item);
}
@Override
public boolean onNavigationItemSelected(@NonNull MenuItem item) {
Fragment selectedFragment = null;
switch (item.getItemId()) {
case R.id.ic_home:
selectedFragment = new HomeFragment();
break;
case R.id.ic_alert:
selectedFragment = new AlertFragment();
break;
case R.id.ic_favorite:
selectedFragment = new FavoriteFragment();
break;
default:
selectedFragment = new HomeFragment();
break;
}
getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container, selectedFragment).commit();
return loadFragment(selectedFragment);
}
private boolean loadFragment(Fragment fragment){
if( fragment != null){
getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container,fragment).commit();
return true;
} return false;
}
}
Main Activity XML
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/container">
<FrameLayout
android:id="@+id/fragment_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="@+id/bottom_navigation">
</FrameLayout>
<android.support.design.widget.BottomNavigationView
android:id="@+id/bottom_navigation"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
app:menu="@menu/bottom_nav_menu"
android:background="?android:attr/windowBackground"/>
</RelativeLayout>
Home Fragment
public class HomeFragment extends Fragment {
private RecyclerView.Adapter adapter;
private List<ListItem> listItems;
private RecyclerView recyclerView;
private EditText SearchText;
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup
container, @Nullable Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_home, container, false);
listItems = new ArrayList<>();
recyclerView = (RecyclerView) v.findViewById(R.id.recyclerView);
SearchText = (EditText) v.findViewById(R.id.search_text);
recyclerView.setHasFixedSize(true);
recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
loadRecyclerViewData();
SearchText.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {
}
@Override
public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
}
@Override
public void afterTextChanged(Editable editable) {
filter(editable.toString());
}
});
return v;
}
private void filter(String text){
List<ListItem> filteredList = new ArrayList<>();
for(ListItem item :listItems ){
if (item.getHead().toLowerCase().contains(text.toLowerCase()) || item.getDesc().toLowerCase().contains(text.toLowerCase())){
filteredList.add(item);
}
}
adapter = new MyAdapter(filteredList, getContext());
recyclerView.setAdapter(adapter);
}
private void loadRecyclerViewData() {
final ProgressDialog progressDialog = new ProgressDialog(getContext());
progressDialog.setMessage("Loading Data...");
progressDialog.show();
StringRequest stringRequest = new StringRequest(Request.Method.GET,
URL_DATA,
new Response.Listener<String>() {
@Override
public void onResponse(String response) {
progressDialog.dismiss();
try {
JSONArray array = new JSONArray(response);
for(int i=0; i < array.length(); i++){
JSONObject o = array.getJSONObject(i);
ListItem item = new ListItem(
o.getString("name"),
o.getString("symbol"),
);
listItems.add(item);
}
adapter = new MyAdapter(listItems, getContext());
recyclerView.setAdapter(adapter);
} catch (JSONException e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
progressDialog.dismiss();
Toast.makeText(getContext(),error.getMessage(), Toast.LENGTH_LONG).show();
}
});
RequestQueue requestQueue = Volley.newRequestQueue(getContext());
requestQueue.add(stringRequest);
}
Home Fragment XML
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:background="#28394D">
<EditText
android:id="@+id/search_text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:drawableLeft="@drawable/ic_search_black_24dp"
android:hint="Enter Coin Name"
android:textSize="25dp"
android:layout_marginLeft="5dp"
android:layout_marginRight="5dp"
android:layout_marginTop="5dp"
android:background="@drawable/rounded_edittext"
android:layout_marginBottom="5dp" />
<android.support.v7.widget.RecyclerView
android:id="@+id/recyclerView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="@+id/search_text"
android:background="#28394D">
</android.support.v7.widget.RecyclerView>
</RelativeLayout>
My Adapter
public class MyAdapter extends RecyclerView.Adapter<MyAdapter.ViewHolder> {
private List<ListItem> listItems;
private Context context;
public MyAdapter(List<ListItem> listItems, Context context) {
this.listItems = listItems;
this.context = context;
}
@NonNull
@Override
public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View v = LayoutInflater.from(parent.getContext())
.inflate(R.layout.list_item, parent, false);
return new ViewHolder(v);
}
@Override
public void onBindViewHolder(@NonNull final ViewHolder holder, final int position) {
final ListItem listItem = listItems.get(position);
holder.textViewHead.setText(listItem.getHead());
}
@Override
public int getItemCount() {
return 50;
}
public void filterList(ArrayList<ListItem> filteredList){
this.listItems = filteredList;
notifyDataSetChanged();
}
