Develop Reference

How do I get each textview resource amount and add them all together into a single variable to be converted into a two sliced pie chart?

This is the code I have been working on for a while. The only issue is I cannot seem to be able to get the sum of values input into the editText fields that are dynamically added into the program and then place them into a pie chart. The data is to be transferred from the second activity to the third where the third activity will add up all resource amounts and display them into a pie chart.
SecondActivity.class
package com.example.a4mob;
import android.content.DialogInterface;
import android.content.Intent;
import android.graphics.Color;
import android.graphics.drawable.ColorDrawable;
import android.os.Bundle;
import android.text.InputType;
import android.view.MenuItem;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.appcompat.app.ActionBar;
import androidx.appcompat.app.ActionBarDrawerToggle;
import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.AppCompatSpinner;
import androidx.drawerlayout.widget.DrawerLayout;
import java.util.ArrayList;
import java.util.List;
public class SecondActivity extends AppCompatActivity implements View.OnClickListener {
public DrawerLayout drawerLayout;
public ActionBarDrawerToggle actionBarDrawerToggle;
private LinearLayout linearLayout;
private Button add;
//for button add resource
List<String> ColourList = new ArrayList<>();
ArrayList<Results> resultList = new ArrayList<>();
private Button submit;
private Number uinput;
#Override
protected void onCreate(Bundle savedInstance){
super.onCreate(savedInstance);
setContentView(R.layout.secondactivity);
// drawer layout instance to toggle the menu icon to open
// drawer and back button to close drawer
drawerLayout = findViewById(R.id.my_drawer_layout);
actionBarDrawerToggle = new ActionBarDrawerToggle(this, drawerLayout, R.string.nav_open, R.string.nav_close);
// pass the Open and Close toggle for the drawer layout listener
// to toggle the button
drawerLayout.addDrawerListener(actionBarDrawerToggle);
actionBarDrawerToggle.syncState();
// to make the Navigation drawer icon always appear on the action bar
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
ActionBar actionBar;
actionBar = getSupportActionBar();
// Define ColorDrawable object and parse color
// using parseColor method
// with color hash code as its parameter
ColorDrawable colorDrawable
= new ColorDrawable(Color.parseColor("grey"));
// Set BackgroundDrawable
actionBar.setBackgroundDrawable(colorDrawable);
//Adds more objects
linearLayout = findViewById(R.id.layout_list);
add = findViewById(R.id.CreateNew);
add.setOnClickListener(this);
ColourList.add("grey");
ColourList.add("green");
ColourList.add("blue");
ColourList.add("yellow");
// Creating submit button click listener
submit = findViewById(R.id.Submit);
submit.setOnClickListener(this);
}
public void onClick(View view){
switch (view.getId()){
case R.id.CreateNew:
addView();
break;
case R.id.Submit:
if(isValid()){
Intent intent = new Intent(SecondActivity.this, ThirdActivity.class);
Bundle bundle = new Bundle();
bundle.putSerializable("list", resultList);
intent.putExtras(bundle);
startActivity(intent);
}
break;
}
}
private boolean isValid() {
resultList.clear();
boolean valid = true;
for(int i = 0; i < linearLayout.getChildCount(); i++){
View resultView = linearLayout.getChildAt(i);
EditText resultName = (EditText) resultView.findViewById(R.id.RName);
EditText resultNumber = (EditText) resultView.findViewById(R.id.RAmount);
AppCompatSpinner COP = (AppCompatSpinner) resultView.findViewById(R.id.ColourOP);
Results results = new Results();
if(!resultName.getText().toString().equals("")){
results.setResName(resultName.getText().toString());
}else{
valid = false;
break;
}
if(!resultNumber.getText().toString().equals("")){
results.setResAmount(Integer.parseInt(resultNumber.getText().toString()));
}else{
valid = false;
break;
}
if(COP.getSelectedItemPosition()!=0){
}else{
valid = false;
break;
}
resultList.add(results);
}
if(resultList.size() == 0){
valid = false;
Toast.makeText(this, "Complete all fields first", Toast.LENGTH_SHORT).show();
} else if(!valid){
Toast.makeText(this, "Enter details correctly", Toast.LENGTH_SHORT).show();
}
return valid;
}
public void addAmount(){
for(int i = 0; i < linearLayout.getChildCount(); i++) {
View resultView = linearLayout.getChildAt(i);
EditText resultNumber = (EditText) resultView.findViewById(R.id.RAmount);
Results results = new Results();
}
}
private void sub(){
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Please input inventory space:");
// Set up the input
final EditText input = new EditText(this);
// Specify the type of input expected; this, for example, sets the input as a password, and will mask the text
input.setInputType(InputType.TYPE_CLASS_NUMBER);
builder.setView(input);
// Set up the buttons
builder.setPositiveButton("Continue", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
uinput = input.getInputType();
changeAct();
}
});
builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});
builder.show();
}
private void changeAct(){
Intent intent = new Intent(this, ThirdActivity.class);
startActivity(intent);
}
private void addView(){
View newResource = getLayoutInflater().inflate(R.layout.row_add_data, null, false);
ImageView imageClose = (ImageView)newResource.findViewById(R.id.Remove);
TextView RN = (TextView) newResource.findViewById(R.id.RName);
TextView RA = (TextView) newResource.findViewById(R.id.RAmount);
AppCompatSpinner COP = (AppCompatSpinner) newResource.findViewById(R.id.ColourOP);
ArrayAdapter arrayAdapter = new ArrayAdapter(this, android.R.layout.simple_spinner_item, ColourList);
COP.setAdapter(arrayAdapter);
imageClose.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
removeView(newResource);
}
});
linearLayout.addView(newResource);
}
private void removeView(View view){
linearLayout.removeView(view);
}
#Override
public boolean onOptionsItemSelected(#NonNull MenuItem item) {
if (actionBarDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
return super.onOptionsItemSelected(item);
}
#Override
public void onPointerCaptureChanged(boolean hasCapture) {
super.onPointerCaptureChanged(hasCapture);
}
}
ThirdActivity.class
package com.example.a4mob;
import androidx.annotation.NonNull;
import androidx.appcompat.app.ActionBar;
import androidx.appcompat.app.ActionBarDrawerToggle;
import androidx.appcompat.app.AppCompatActivity;
import androidx.drawerlayout.widget.DrawerLayout;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import android.content.Intent;
import android.graphics.Color;
import android.graphics.drawable.ColorDrawable;
import android.os.Bundle;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.TextView;
import java.util.ArrayList;
public class ThirdActivity extends AppCompatActivity {
RecyclerView recycle_results;
ArrayList<Results> resultList = new ArrayList<>();
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.thirdactivity);
recycle_results = findViewById(R.id.res_results);
LinearLayoutManager linearLayoutManager = new LinearLayoutManager(this, RecyclerView.VERTICAL, false);
recycle_results.setLayoutManager(linearLayoutManager);
resultList = (ArrayList<Results>) getIntent().getExtras().getSerializable("list");
recycle_results.setAdapter(new ResultsAdapter(resultList));
}
}
Results.class
package com.example.a4mob;
import java.io.Serializable;
public class Results implements Serializable {
public String resourceName;
public int resourceAmount;
public int totalAmount;
public Results(){
}
public int getTotalAmount() {
return totalAmount;
}
public void setTotalAmount(int totalAmount) {
this.totalAmount = totalAmount;
}
public int getResAmount() {
return resourceAmount;
}
public void setResAmount(int resourceAmount) {
this.resourceAmount = resourceAmount;
}
public Results(String resourceName, int resourceAmount){
this.resourceName = resourceName;
this.resourceAmount = resourceAmount;
}
public String getResName() {
return resourceName;
}
public void setResName(String resourceName) {
this.resourceName = resourceName;
}
}
ResultsAdapter.class
package com.example.a4mob;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.EditText;
import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;
import java.util.ArrayList;
public class ResultsAdapter extends RecyclerView.Adapter<ResultsAdapter.ResultsView> {
ArrayList<Results> resultList = new ArrayList<>();
int total;
public ResultsAdapter(ArrayList<Results> resultList) {
this.resultList = resultList;
}
#NonNull
#Override
public ResultsView onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.row_results,parent,false);
return new ResultsView(view);
}
#Override
public void onBindViewHolder(#NonNull ResultsView holder, int position) {
Results results = resultList.get(position);
holder.resourceName.setText(results.getResName());
holder.resourceAmount.setText(String.valueOf(results.getResAmount()));
}
#Override
public int getItemCount() {
return resultList.size();
}
public class ResultsView extends RecyclerView.ViewHolder{
TextView resourceName, resourceAmount, resourceTotal;
public ResultsView(#NonNull View itemView) {
super(itemView);
resourceName = (TextView) itemView.findViewById(R.id.resNa);
resourceAmount = (TextView) itemView.findViewById(R.id.resAm);
resourceTotal = (TextView) itemView.findViewById(R.id.resTot);
}
}
}
thirdactivity.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".ThirdActivity">
<LinearLayout
android:id="#+id/layoutThird"
android:layout_width="0dp"
android:layout_height="0dp"
android:orientation="horizontal"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/res_results"
android:layout_width="match_parent"
android:layout_height="match_parent"></androidx.recyclerview.widget.RecyclerView>
</LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
row_results.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.cardview.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
xmlns:app="http://schemas.android.com/apk/res-auto"
app:cardBackgroundColor="#color/white"
android:layout_margin="5dp"
android:layout_marginBottom="20dp"
app:cardCornerRadius="10dp"
app:cardElevation="10dp">
<LinearLayout
android:padding="10dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:weightSum="1"
android:layout_marginBottom="0dp">
<TextView
android:id="#+id/resNa"
android:layout_marginLeft="5dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Resource Name"
android:textSize="18sp"
android:textColor="#color/black"></TextView>
<TextView
android:id="#+id/resAm"
android:layout_marginLeft="5dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Resource Amount"
android:textSize="14sp"
android:textColor="#color/black"></TextView>
<TextView
android:id="#+id/resTot"
android:layout_marginLeft="5dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Resource Amount"
android:textSize="14sp"
android:textColor="#color/black"></TextView>
</LinearLayout>
</androidx.cardview.widget.CardView>

How to change setText when i delete the data

I want to change my Button text when i delete the items
i already checked it getText, when i getText it shows that the data
already changed but when i try to setText, it's not show to me
In this case what shold i do?
This is my f_productAdapter
package com.example.together.Adapter;
import android.content.Context;
import android.media.Image;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;
import com.example.together.Model.FuneralProdcutOrder;
import com.example.together.R;
import com.squareup.picasso.Picasso;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import static com.example.together.Activities.EditProfileActivity.TAG;
public class f_productAdapter extends BaseAdapter {
Button b;
LayoutInflater inflater = null;
private ArrayList<FuneralProdcutOrder> list;
public f_productAdapter(ArrayList<FuneralProdcutOrder> f_order) {
super();
list = f_order;
}
#Override
public int getCount() {
return list.size();
}
#Override
public Object getItem(int position) {
return list.get(position);
}
#Override
public long getItemId(int position) {
return list.get(position).hashCode();
}
#Override
public View getView(final int position, View convertView, ViewGroup parent) {
if(convertView == null) {
inflater = (LayoutInflater) parent.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.item_funeralorder, parent, false);
}
TextView tv_name = convertView.findViewById(R.id.productnm); //상품이름
TextView tv_price = convertView.findViewById(R.id.productpri); //상품 가격
ImageView tv_img = convertView.findViewById(R.id.pro_img);
Button tv_delete = convertView.findViewById(R.id.deleteBtn);
FuneralProdcutOrder getProlist = list.get(position);
tv_name.setText(getProlist.getName());
tv_price.setText(getProlist.getPrice());
Picasso.get().load(getProlist.getImg()).fit().into(tv_img);
LayoutInflater inflaters = (LayoutInflater) parent.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View Toplayout = inflaters.inflate(R.layout.activity_goodbyepet_reservation_result, null );
//
b = Toplayout.findViewById(R.id.f_orderBtn);
TextView test = Toplayout.findViewById(R.id.toolbar_title);
Log.e("test",test.getText()+"");
// Log.e("view context", parent.getContext()+"");
// Log.e("view position", position+"");
// Log.e("view count", list.size()+"");
// Log.e("view",b.getText()+"");
// b.setText("테스트");
b.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Log.e("view alert" ,"확실히 버튼 객체를 찾았습니다 눌림");
}
});
tv_delete.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
list.remove(position);
b.setText("Show me~~~~ u r change!!!");
notifyDataSetChanged();
Log.d(TAG, "onClick: What is you?"+list.size());
}
});
return convertView;
}
}
This is my reservationResultActivity
package com.example.together.Activities.GoodbyePet;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;
import android.support.v7.widget.Toolbar;
import com.example.together.Adapter.f_productAdapter;
import com.example.together.Model.FuneralProdcutOrder;
import com.example.together.R;
import java.lang.reflect.Array;
import java.util.ArrayList;
public class GoodbyepetReservationResultActivity extends AppCompatActivity {
// private TextView tvParent, tvChild;
Toolbar myToolbar;
ListView funeralview;
Button Btn;
private ArrayList<FuneralProdcutOrder> f_order = new ArrayList<>();
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_goodbyepet_reservation_result);
int total_price = 0;
//리스트뷰선언
funeralview = findViewById(R.id.funeral_order);
//예약 버튼
Btn = findViewById(R.id.f_orderBtn);
//툴바 선언
myToolbar = findViewById(R.id.my_toolbar);
setSupportActionBar(myToolbar);
//액션바 왼쪽에 버튼
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setHomeAsUpIndicator(R.drawable.ic_btn_back);
getSupportActionBar().setDisplayShowTitleEnabled(false);
for (int i = 0; i < MyCategoriesExpandableListAdapter.parentItems.size(); i++ ) {
for (int j = 0; j < MyCategoriesExpandableListAdapter.childItems.get(i).size(); j++ ){
String isChildChecked = MyCategoriesExpandableListAdapter.childItems.get(i).get(j).get(ConstantManager.Parameter.IS_CHECKED);
if (isChildChecked.equalsIgnoreCase(ConstantManager.CHECK_BOX_CHECKED_TRUE)) {
// tvParent.setText(tvParent.getText() + MyCategoriesExpandableListAdapter.childItems.get(i).get(j).get(ConstantManager.Parameter.SUB_CATEGORY_NAME));
// tvChild.setText(tvChild.getText() + MyCategoriesExpandableListAdapter.childItems.get(i).get(j).get(ConstantManager.Parameter.SUB_CATEGORY_PRICE));
String name = MyCategoriesExpandableListAdapter.childItems.get(i).get(j).get(ConstantManager.Parameter.SUB_CATEGORY_NAME);
String price = MyCategoriesExpandableListAdapter.childItems.get(i).get(j).get(ConstantManager.Parameter.SUB_CATEGORY_PRICE);
String img = MyCategoriesExpandableListAdapter.childItems.get(i).get(j).get(ConstantManager.Parameter.SUB_CATEGORY_IMAGE);
f_order.add(new FuneralProdcutOrder(name,price,img));
total_price = total_price + Integer.parseInt(price);
}
}
}
f_productAdapter orAdapter = new f_productAdapter(f_order);
// orAdapter.setHasStableId(true);
Log.e("view activiey", f_order.size()+"안녕");
funeralview.setAdapter(orAdapter);
Btn.setText(f_order.size()+"개 " + total_price+" 원 예약 신청하기");
Btn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
}
});
}
//액션바 등록
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.alldelete_manu, menu) ;
return true ;
}
//액션바 클릭 이벤트
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
// ((TextView)findViewById(R.id.textView)).setText("SEARCH") ;
return true;
case R.id.settings:
// ((TextView)findViewById(R.id.textView)).setText("ACCOUNT") ;
return true;
default:
return super.onOptionsItemSelected(item);
}
}
}
What i want to do
when i delete the button directly change buttons text also change
but setText() is not working
how to change that?
Click delete button
tv_delete.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
list.remove(position);
b.setText("Show me~~~~ u r change!!!");
notifyDataSetChanged();
Log.d(TAG, "onClick: What is you?"+list.size());
}
});
What i want to change the button text
Btn.setText(f_order.size()+"개 " + total_price+" 원 예약 신청하기");
This is my XML That include button what i want to change the text
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="fill_parent"
tools:context=".Activities.GoodbyePet.GoodbyepetReservationResultActivity">
<android.support.v7.widget.Toolbar
android:id="#+id/my_toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#color/mdtp_white"
android:elevation="4dp"
android:theme="#style/ThemeOverlay.AppCompat.ActionBar">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="예약 상세서"
android:layout_gravity="center"
android:id="#+id/toolbar_title"
android:textSize="20sp"
/>
</android.support.v7.widget.Toolbar>
<ListView
android:id="#+id/funeral_order"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="0.3"
android:drawSelectorOnTop="false">
</ListView>
<Button
android:id="#+id/f_orderBtn"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="0.8"
android:layout_margin="10dp"
android:text="바뀌어주세요"
android:background="#drawable/button_radius"
android:textSize="18dp"/>
</LinearLayout>

Create an interface class like this;
You can set many kind of information as a parameter about your deleted item and send it to your activity.
public interface ItemSelectedListener{
void onItemSelected(boolean isDeleted);
}
In your adapter initialize your interface;
private List<ItemSelectedListener> mItemSelectedSubscribers = new ArrayList<ItemSelectedListener>();
Add this method in your adapter ;
public void subscribeItemSelection(ItemSelectedListener listener) {
mItemSelectedSubscribers .add(listener);
}
Set this loop in your click events;
tv_delete.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
for (ItemSelectedListener listener : mItemSelectedSubscribers ) {
listener.onItemSelected(true);
}
list.remove(position);
b.setText("Show me~~~~ u r change!!!");
notifyDataSetChanged();
Log.d(TAG, "onClick: What is you?"+list.size());
}
});
In your activity, implement your interface and you will set a implemented methods. this methods look like this;
boolean isDeleted;
#Override
public void onItemSelected(boolean isDeleted) {
this.isDeleted = isDeleted;
}
You know now item is deleted or not. When a button deleted you can change text by using your method.
if(isDeleted){
btn.setText(changeText)
}
Hope this help!

Android Studio toolbar title updating error with back stack from one fragment to the another fragment

i have a fragment_home that has 6 buttons and these 6 buttons have there own link(to display something like registration form ) but i have one button from these 6 buttons which is linked to another fragment and has tabbed view with view pager the title of any other fragment will update when i press back but when i entered to the button that links to the tabbed view it makes the toolbar title constant and it won't update there the application unless i exit and open again
for more information i have added some photos with description below
shortly
when application Starts
first image
when i clicked users
second image
when i click back
third image
it updates the title correctly , when i click register own
fourth image
it updates correctly again but now when i press back
last image
it doesnt update the title
main navigation class
package com.example.arada_tech.myapplication;
import android.nfc.Tag;
import android.support.v4.app.FragmentManager;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.NavigationView;
import android.support.design.widget.Snackbar;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Toast;
public class Navi extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
Fragment fragment1;
DrawerLayout drawer;
Tag tag;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_navi);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
// FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
// fab.setOnClickListener(new View.OnClickListener() {
// #Override
// public void onClick(View view) {
// Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
// .setAction("Action", null).show();
// }
// });
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);
Displayfragment(R.id.nav_home);
}
boolean doubleBackToExitPressedOnce=false;
// #Override
// public void onBackPressed() {
//
// DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
// if (drawer.isDrawerOpen(GravityCompat.START)) {
// drawer.closeDrawer(GravityCompat.START);
//
// } else {
// if (getFragmentManager().getBackStackEntryCount() > 1) {
// getFragmentManager().popBackStack();
// } else if (!doubleBackToExitPressedOnce) {
// this.doubleBackToExitPressedOnce = true;
// Toast.makeText(this,"Please click BACK again to exit.", Toast.LENGTH_SHORT).show();
// new Handler().postDelayed(new Runnable() {
// #Override
// public void run() {
// doubleBackToExitPressedOnce = false;
// }
// }, 2000);
// }
// else {
// System.exit(1);
//// 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.navi, 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);
}
private void Displayfragment(int id)
{
Fragment fragment=null;
switch(id) {
case R.id.nav_home:
fragment = new Fragment_Home();
break;
case R.id.nav_addbirr:
// fragment = new Fragment_addbirr();
break;
case R.id.nav_adduser:
fragment = new Fragment_addusers();
break;
case R.id.nav_followorders:
// fragment = new Fragment_followorders();
break;
case R.id.nav_Deleteusers:
// fragment = new Fragment_deleteusers();
break;
case R.id.nav_setings:
// fragment = new Fragment_settings();
Intent tin=new Intent(getApplicationContext(),Menus.class);
startActivity(tin);
break;
}
if(fragment!=null)
{
FragmentManager fragmentManager=getSupportFragmentManager();
FragmentTransaction ft= fragmentManager.beginTransaction();
fragment1=fragmentManager.findFragmentById(R.id.nav_home);
ft.replace(R.id.myframelayout,fragment);
// ft.addToBackStack(fragment.getClass().getName());
ft.addToBackStack(fragment.getClass().getName());
ft.commit();
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
}
#SuppressWarnings("StatementWithEmptyBody")
#Override
public boolean onNavigationItemSelected(MenuItem item) {
Displayfragment(item.getItemId());
return true;
}
public void setActionBarTitle(String title) {
getSupportActionBar().setTitle(title);
}
}
my Fragment_home
package com.example.arada_tech.myapplication;
import android.app.Activity;
import android.content.Intent;
import android.graphics.drawable.AnimationDrawable;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.CardView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.RelativeLayout;
public class Fragment_Home extends Fragment implements View.OnClickListener {
CardView im,in,du,ro;
Fragment fragment=null;
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, #Nullable ViewGroup container, Bundle savedInstanceState) {
getActivity().setTitle("home");
return inflater.inflate(R.layout.mukera,container,false);
}
#Override
public void onViewCreated(View view, #Nullable Bundle savedInstanceState) {
im= (CardView) view.findViewById(R.id.card_user);
ro= (CardView) view.findViewById(R.id.card_registerown);
im.setOnClickListener(this);
ro.setOnClickListener(this);
in= (CardView) view.findViewById(R.id.card_order);
in.setOnClickListener(this);
du= (CardView) view.findViewById(R.id.card_deleteuser);
du.setOnClickListener(this);
super.onViewCreated(view, savedInstanceState);
}
#Override
public void onClick(View v) {
if(v==im){
fragment = new Fragment_addusers();
FragManager();
}
else if (v==in)
{
// fragment = new Fragment_followorders();
FragManager();
}
else if (v==du)
{
// fragment = new Fragment_deleteusers();
FragManager();
}
else if (v==ro)
{
fragment = new Fragment_registerown();
FragManager();
}
}
public void FragManager()
{
if(fragment!=null)
{
FragmentManager fragmentManager=getFragmentManager();
FragmentTransaction ft= fragmentManager.beginTransaction();
ft.replace(R.id.myframelayout,fragment);
ft.addToBackStack(null);
ft.commit();
}
}
}
and my registerown fragment
package com.example.arada_tech.myapplication;
import android.content.Context;
import android.os.Bundle;
import android.os.Handler;
import android.support.annotation.Nullable;
import android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
public class Fragment_registerown extends Fragment {
Context context;
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, #Nullable ViewGroup container, Bundle savedInstanceState) {
getActivity().setTitle("register Own");
setHasOptionsMenu(true);
return inflater.inflate(R.layout.mainslide,container,false);
}
#Override
public void onViewCreated(View view, #Nullable Bundle savedInstanceState) {
Toolbar toolbar = (Toolbar) view.findViewById(R.id.toolbar);
((AppCompatActivity)getActivity()).setSupportActionBar(toolbar);
TabLayout tabLayout = (TabLayout) view.findViewById(R.id.tab_layout);
tabLayout.addTab(tabLayout.newTab().setText("View"));
tabLayout.addTab(tabLayout.newTab().setText("Create"));
tabLayout.addTab(tabLayout.newTab().setText("Edit"));
tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);
final ViewPager viewPager = (ViewPager) view.findViewById(R.id.pager);
final ViewAdapter adapter = new ViewAdapter(((FragmentActivity) getContext()).getSupportFragmentManager(), tabLayout.getTabCount());
viewPager.setAdapter(adapter);
viewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout));
tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
#Override
public void onTabSelected(TabLayout.Tab tab) {
viewPager.setCurrentItem(tab.getPosition());
}
#Override
public void onTabUnselected(TabLayout.Tab tab) {
}
#Override
public void onTabReselected(TabLayout.Tab tab) {
}
});
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
// super.onViewCreated(view, savedInstanceState);
}
for any help thanks in advance

you just need to debug and check
public void setActionBarTitle(String title) {
getSupportActionBar().setTitle(title);
}
method is call or not on the back event of register own fragment.you are not mentions the code line where you called setActionBarTitle() method in the code.

It works when i delete the first two lines of code in registerown_fragment in onviewcreated method Thank you for your help

How to load the MainActivity on pressing the Back button of the Phone

I have a MainActivity that has a NavigationDrawer in it.In the menu of the drawer each item starts a new activity.Now when i press the Back button from any of these activities i end up in a blank page,when i press it again it goes to main activity.What i want is to go directly to the main activity.
my MainActivity.java:
package com.defcomm.invento;
import android.support.design.widget.CollapsingToolbarLayout;
import android.support.design.widget.CoordinatorLayout;
import android.support.v4.view.ViewPager;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBar;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import com.defcomm.invento.NavigationDrawerActivity;
import android.support.v4.widget.NestedScrollView;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
public class INVENTO extends AppCompatActivity {
private Toolbar toolbar;
private CoordinatorLayout mCoordinator;
private CollapsingToolbarLayout mCollapsableLayout;
private NestedScrollView nestedScrollView;
private ViewPager mPager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_new);
mCoordinator= (CoordinatorLayout) findViewById(R.id.coordinator_layout);
mCollapsableLayout = (CollapsingToolbarLayout) findViewById(R.id.collapsing_toolbar);
toolbar= (Toolbar) findViewById(R.id.appbar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayShowHomeEnabled(true);
mCollapsableLayout.setTitle(getResources().getString(R.string.app_name));
nestedScrollView= (NestedScrollView) findViewById(R.id.rvToDoList);
mCollapsableLayout.setExpandedTitleTextAppearance(R.style.ExpandedTitleTextAppearence);
mCollapsableLayout.setCollapsedTitleTextColor(getResources().getColor(R.color.textColor));
NavigationDrawerActivity drawerFragment= (NavigationDrawerActivity) getSupportFragmentManager().
findFragmentById(R.id.navigation_drawer);
drawerFragment.setUp(R.id.navigation_drawer, (DrawerLayout) findViewById(R.id.drawerlayout), toolbar);
}
#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_invento, 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);
}
}
my NavigationDrawer.java1:
package com.defcomm.invento;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.res.Configuration;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.design.widget.CoordinatorLayout;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBar;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.Toolbar;
import android.view.LayoutInflater;
import android.support.design.widget.CollapsingToolbarLayout;
import android.view.View;
import android.view.ViewGroup;
import android.widget.LinearLayout;
import java.util.ArrayList;
import java.util.List;
public class NavigationDrawerActivity extends Fragment implements MyAdapter.clickListener {
private ActionBarDrawerToggle mdrawerToggle;
private DrawerLayout mdrawerLayout;
private boolean mUserLearnedState;
private MyAdapter adapter;
private CoordinatorLayout mcoordinator;
private RecyclerView recyclerView;
private CollapsingToolbarLayout collapsingToolbarLayout;
View containerId;
public static final String file_pref_name = "Testpef";
public static final String KEY_USER_VALUE = "user_learned_drawer";
private boolean mfromSavedInstanceState;
public NavigationDrawerActivity() {
// Required empty public constructor
}
#Override
public void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mUserLearnedState = Boolean.valueOf(readPreference(getActivity(), KEY_USER_VALUE, "false"));
if (savedInstanceState != null) {
mfromSavedInstanceState = true;
}
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View layout=inflater.inflate(R.layout.fragment_navigation_drawer, container, false);
recyclerView= (RecyclerView) layout.findViewById(R.id.recycler);
adapter=new MyAdapter(getActivity(),getdata());
adapter.setClicklistener(this);
recyclerView.setAdapter(adapter);
recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
return layout;
}
public static List<ListItems> getdata(){
List<ListItems> nav_data=new ArrayList<>();
int[] icons={R.drawable.variable,R.drawable.ignore};
String[] texts={"Coding","Hacking"};
for(int i=0;i<icons.length&&i<icons.length;i++){
ListItems current=new ListItems();
current.iconId=icons[i];
current.IconName=texts[i];
nav_data.add(current);
}
return nav_data;
}
public void setUp(final int fragmentId, DrawerLayout drawerlayout, final Toolbar toolbar) {
mdrawerLayout = drawerlayout;
containerId = getActivity().findViewById(fragmentId);
mdrawerToggle = new ActionBarDrawerToggle(getActivity(), drawerlayout, toolbar,
R.string.drawer_open, R.string.drawer_close) {
#Override
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
if (!mUserLearnedState) {
mUserLearnedState = true;
saveToPreference(getActivity(), KEY_USER_VALUE, mUserLearnedState + "");
}
getActivity().invalidateOptionsMenu();
}
#Override
public void onDrawerClosed(View drawerView) {
super.onDrawerClosed(drawerView);
getActivity().invalidateOptionsMenu();
}
#Override
public void onDrawerSlide(View drawerView, float slideOffset) {
if (slideOffset < 0.5f) {
toolbar.setAlpha(1 - slideOffset);
}
}
};
if (!mUserLearnedState && !mfromSavedInstanceState) {
mdrawerLayout.openDrawer(containerId);
}
mdrawerLayout.setDrawerListener(mdrawerToggle);
mdrawerLayout.post(new Runnable() {
#Override
public void run() {
mdrawerToggle.syncState();
}
});
}
public static void saveToPreference(Context context, String preferenceName, String preferenceValue) {
SharedPreferences shared = context.getSharedPreferences(file_pref_name, Context.MODE_PRIVATE);
SharedPreferences.Editor editor = shared.edit();
editor.putString(preferenceName, preferenceValue);
editor.apply();
}
public static String readPreference(Context context, String preferenceName, String defaultValue) {
SharedPreferences share = context.getSharedPreferences(file_pref_name, Context.MODE_PRIVATE);
return share.getString(preferenceName, defaultValue);
}
#Override
public void ItemCLick(View view, int position) {
if(position==0){
startActivity(new Intent(getActivity(),Coding.class));
}
if(position==1){
startActivity(new Intent(getActivity(),Hacking.class));
}
}
}
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.defcomm.invento" >
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".INVENTO"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".Coding"
android:label="#string/title_activity_coding" >
</activity>
<activity
android:name=".Hacking"
android:label="#string/title_activity_hacking" >
</activity>
</application>

you can try this.
#Override
public void onBackPressed() {
startActivity(new Intent(this,MainActivity.class));
this.finish();
}

Try this
Intent intent = new Intent(this, MainActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(intent);
This will close all other activities and start MainActivity

This will close the drawer when it's open and back is pressed rather than taking you back to the previous activity (or exiting).
DrawerLayout drawer...
#Override
public void onBackPressed() {
// TODO Auto-generated method stub
if(drawer.isDrawerOpen(Gravity.LEFT)){
drawer.closeDrawer(Gravity.LEFT);
startActivity(new Intent(CurrentActivity.this , MainActivity.class))
finish();
}else{
super.onBackPressed();
}
}

Up caret shows navigation drawer

Nothing much more to say. I'm using a single activity and I go into a Fragment which calls setDisplayHomeAsUpEnabled(Boolean.TRUE) and setHasOptionsMenu(Boolean.TRUE). The menu has two items and the interactions with them are right. I have set breakpoints on all onOptionsItemSelected of the app (which includes the Activity, the Fragment, and the drawer toggle) but when I debug, the menu opens and no breakpoint is triggered.
The Activity and Fragment code in case they help:
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/navigation_drawer"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:animateLayoutChanges="true">
<include
android:id="#+id/toolbar_actionbar"
layout="#layout/toolbar_default"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<FrameLayout
android:id="#+id/content_fragment_container"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
<fragment
android:id="#+id/navigation_drawer_fragment"
android:name="org.jorge.lolin1.ui.fragment.NavigationDrawerFragment"
android:layout_width="#dimen/navigation_drawer_width"
android:layout_height="match_parent"
android:layout_gravity="start"
layout="#layout/fragment_navigation_drawer" />
The Fragment code:
import android.app.Activity;
import android.content.Context;
import android.graphics.drawable.ColorDrawable;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v7.app.ActionBar;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.ScrollView;
import android.widget.TextView;
import com.melnykov.fab.FloatingActionButton;
import com.squareup.picasso.Picasso;
import org.jorge.lolin1.LoLin1Application;
import org.jorge.lolin1.R;
import org.jorge.lolin1.datamodel.FeedArticle;
import org.jorge.lolin1.ui.activity.MainActivity;
import org.jorge.lolin1.ui.util.StickyParallaxNotifyingScrollView;
import org.jorge.lolin1.util.PicassoUtils;
public class ArticleReaderFragment extends Fragment {
private Context mContext;
private int mDefaultImageId;
private String TAG;
private FeedArticle mArticle;
public static final String ARTICLE_KEY = "ARTICLE";
private MainActivity mActivity;
private Drawable mActionBarBackgroundDrawable;
private final Drawable.Callback mDrawableCallback = new Drawable.Callback() {
#Override
public void invalidateDrawable(Drawable who) {
final ActionBar actionBar = mActivity.getSupportActionBar();
if (actionBar != null)
actionBar.setBackgroundDrawable(who);
}
#Override
public void scheduleDrawable(Drawable who, Runnable what, long when) {
}
#Override
public void unscheduleDrawable(Drawable who, Runnable what) {
}
};
private ActionBar mActionBar;
private float mOriginalElevation;
private FloatingActionButton mMarkAsReadFab;
#Override
public void onAttach(Activity activity) {
super.onAttach(activity);
mContext = LoLin1Application.getInstance().getContext();
Bundle args = getArguments();
if (args == null)
throw new IllegalStateException("ArticleReader created without arguments");
mArticle = args.getParcelable(ARTICLE_KEY);
TAG = mArticle.getUrl();
mActivity = (MainActivity) activity;
mDefaultImageId = getArguments().getInt(FeedListFragment.ERROR_RES_ID_KEY);
}
#Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
super.onCreateOptionsMenu(menu, inflater);
inflater.inflate(R.menu.actionbar_article_reader, menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.homeAsUp:
mActivity.onBackPressed();
return Boolean.TRUE;
case R.id.action_browse_to:
mArticle.requestBrowseToAction(mContext);
return Boolean.TRUE;
case R.id.action_share:
mArticle.requestShareAction(mContext);
return Boolean.TRUE;
default:
return super.onOptionsItemSelected(item);
}
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR1) {
mActionBarBackgroundDrawable.setCallback(mDrawableCallback);
}
}
#Override
public View onCreateView(LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
setHasOptionsMenu(Boolean.TRUE);
final View ret = inflater.inflate(R.layout.fragment_article_reader, container, Boolean.FALSE);
View mHeaderView = ret.findViewById(R.id.image);
PicassoUtils.loadInto(mContext, mArticle.getImageUrl(), mDefaultImageId, (android.widget.ImageView) mHeaderView, TAG);
final String title = mArticle.getTitle();
mHeaderView.setContentDescription(title);
((TextView) ret.findViewById(R.id.title)).setText(title);
((TextView) ret.findViewById(android.R.id.text1)).setText(mArticle.getPreviewText());
mActionBar = mActivity.getSupportActionBar();
mActionBar.setDisplayHomeAsUpEnabled(Boolean.TRUE);
mActionBarBackgroundDrawable = new ColorDrawable(mContext.getResources().getColor(R.color.toolbar_background));
mActionBar.setBackgroundDrawable(mActionBarBackgroundDrawable);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
mOriginalElevation = mActionBar.getElevation();
mActionBar.setElevation(0); //So that the shadow of the ActionBar doesn't show over the article title
}
mActionBar.setTitle(mActivity.getString(R.string.section_title_article_reader));
StickyParallaxNotifyingScrollView scrollView = (StickyParallaxNotifyingScrollView) ret.findViewById(R.id.scroll_view);
scrollView.setOnScrollChangedListener(mOnScrollChangedListener);
scrollView.smoothScrollTo(0, 0);
if (!mArticle.isRead()) {
mMarkAsReadFab = (FloatingActionButton) ret.findViewById(R.id.fab_button_mark_as_read);
mMarkAsReadFab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
mArticle.markAsRead();
mMarkAsReadFab.hide();
}
});
mMarkAsReadFab.show();
}
return ret;
}
private StickyParallaxNotifyingScrollView.OnScrollChangedListener mOnScrollChangedListener = new StickyParallaxNotifyingScrollView.OnScrollChangedListener() {
public void onScrollChanged(ScrollView who, int l, int t, int oldl, int oldt) {
if (mMarkAsReadFab != null)
if (!who.canScrollVertically(1)) {
mMarkAsReadFab.show();
} else if (t < oldt) {
mMarkAsReadFab.show();
} else if (t > oldt) {
mMarkAsReadFab.hide();
}
}
};
#Override
public void onDestroy() {
super.onDestroy();
Picasso.with(mContext).cancelTag(TAG);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
mActionBar.setElevation(mOriginalElevation);
}
}
#Override
public Animation onCreateAnimation(int transit, boolean enter, int nextAnim) {
if (enter) {
return AnimationUtils.loadAnimation(mContext, R.anim.move_in_from_bottom);
} else {
return AnimationUtils.loadAnimation(mContext, R.anim.move_out_to_bottom);
}
}
}

I have opted for making an activity only for that fragment which doesn't include the nav drawer. But obviously this doesn't answer the question, it just gets a relatively similar behavior.