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How to pass data from Activity A to fragment in Activity B?

I need to pass data from Activity "MainCalendar" to fragment "AddTaskFragment" in Activity "Add". I have a button in a fragment which opens an Activity "MainCalendar", where I select a date in the calendar, and then I need to send this date into a fragment.
When I click on Choose Button, there is opens a MainCalendar, where user need to choose date, after that, the activity closed, and than I want to put a date from MainCalendar to the text of "Choose Button".
Add Activity with a fragment,
MainCalendar Activity:MainCalendar
MainCalendar.class:
public class MainCalendar extends AppCompatActivity {
private CalendarView Calendar;
private String date;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main_calendar);
Calendar = (CalendarView) findViewById(R.id.calendarView);
Calendar.setOnDateChangeListener(new CalendarView.OnDateChangeListener() {
#Override
public void onSelectedDayChange(#NonNull CalendarView view, int year, int month, int dayOfMonth) {
date = (dayOfMonth+"/"+month+"/"+year);
System.out.println(date);
Intent intent = new Intent(MainCalendar.this, Add.class);
intent.putExtra("DATE_KEY", date);
finish();
}
});
}
Add.class:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_add);
BottomNavigationView bottomNav = findViewById(R.id.bottom_nav);
bottomNav.setSelectedItemId(R.id.add);
Button notes_button = findViewById(R.id.notes_btn);
Button tasks_button = findViewById(R.id.tasks_btn);
Button goals_button = findViewById(R.id.goals_btn);
RadioButton rb = findViewById(R.id.choose_day_btn);
String date = null;
Bundle extras = getIntent().getExtras();
if (extras != null) {
//The key argument here must match that used in the other activity
date = extras.getString("DATE_KEY");
}
AddTasksFragment frag = new AddTasksFragment();
Bundle bundle = new Bundle();
bundle.putString("DATE_KEY", date);
frag.setArguments(bundle);
Fragment fragment1 = new AddTasksFragment();
getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container,fragment1).commit();
bottomNav.setOnNavigationItemSelectedListener(new BottomNavigationView.OnNavigationItemSelectedListener() {
#Override
public boolean onNavigationItemSelected(#NonNull MenuItem item) {
switch (item.getItemId()){
case R.id.notes:
startActivity(new Intent(getApplicationContext(), Notes.class));
overridePendingTransition(0,0);
return true;
case R.id.add:
return true;
case R.id.tasks:
startActivity(new Intent(getApplicationContext(), Tasks.class));
overridePendingTransition(0,0);
return true;
case R.id.goals:
startActivity(new Intent(getApplicationContext(), Goals.class));
overridePendingTransition(0,0);
return true;
case R.id.statistics:
startActivity(new Intent(getApplicationContext(), Statistics.class));
overridePendingTransition(0,0);
return true;
}
return false;
}
});
Fragment fragment = new AddTasksFragment();
getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container,fragment).commit();
tasks_button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Fragment fragment = new AddTasksFragment();
getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container,fragment).commit();
}
});
notes_button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Fragment fragment = new AddNotesFragment();
getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container,fragment).commit();
}
});
goals_button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Fragment fragment = new AddGoalsFragment();
getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container,fragment).commit();
}
});
//
AddTaskFragment.class, which is in Add.class:
#Nullable
#Override
public View onCreateView(#NonNull LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
return inflater.inflate(R.layout.add_tasks_fragment, container, false);
}
#Override
public void onViewCreated(View view, #Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
subtask_btn = (Button) view.findViewById(R.id.add_subtask_btn);
subtask_name = (EditText) view.findViewById(R.id.subtask_name);
task_name = (EditText) view.findViewById(R.id.task_name);
lin_lay = (LinearLayout) view.findViewById(R.id.linear_layout);
sb_lay = (LinearLayout) view.findViewById(R.id.subtask_lay);
apply_btn = (Button) view.findViewById(R.id.apply_btn);
rgDay = (RadioGroup) view.findViewById(R.id.date_group);
rgPriority = (RadioGroup) view.findViewById(R.id.priority_group);
todayBtn = (RadioButton) view.findViewById(R.id.today_btn);
tomorrowBtn = (RadioButton) view.findViewById(R.id.tomorrow_btn);
chooseDayBtn = (RadioButton) view.findViewById(R.id.choose_day_btn);
lowPrBtn = (RadioButton) view.findViewById(R.id.low_btn);
mediumPrBtn = (RadioButton) view.findViewById(R.id.medium_btn);
highPrBtn = (RadioButton) view.findViewById(R.id.high_btn);
firebaseAuth = FirebaseAuth.getInstance();
firebaseUser = FirebaseAuth.getInstance().getCurrentUser();
dataBase = FirebaseDatabase.getInstance().getReference(TASKS_KEY);
this.getResources().getDisplayMetrics();
subtask_btn.setOnClickListener(this);
apply_btn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
writeTask();
}
});
chooseDayBtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(getActivity(), MainCalendar.class);
startActivity(intent);
}
});
String data;
data = getActivity().getIntent().getStringExtra(DATE_KEY);
}
#Override
public void onClick(View v) {
addView();
}
private void writeTask() {
String Task;
Task = task_name.getText().toString();
dataBase.push().setValue(Task);
String[] subTasks = new String[sb_lay.getChildCount()];
for (int i = 0; i < sb_lay.getChildCount(); i++) {
View subtaskView = sb_lay.getChildAt(i);
EditText editTextName = (EditText) subtaskView.findViewById(R.id.subtask_name);
subTasks[i] = editTextName.getText().toString();
dataBase.child(Task).child("Subtasks").push().setValue(subTasks[i]);
}
dataBase.child(Task).push().setValue(getDay());
}
private String getDay(){
String day=null;
if(todayBtn.isChecked()){
Date currentTime = Calendar.getInstance().getTime();
day = currentTime.toString();
}
else if(tomorrowBtn.isChecked()){
Date dt = new Date();
Calendar c = Calendar.getInstance();
c.setTime(dt);
c.add(Calendar.DATE, 1);
dt = c.getTime();
day = dt.toString();
}else if(chooseDayBtn.isChecked()) {
day = getArguments().getString("DATE_KEY");
System.out.println(" Date is choosed ----------------------------------------------------------------------------" + day);
chooseDayBtn.setText(day);
}
return day;
}
private void addView(){
final View subtaskView = getLayoutInflater().inflate(R.layout.subtask_raw, null, false);
EditText editText = (EditText)subtaskView.findViewById(R.id.subtask_name);
ImageView imageClose = (ImageView)subtaskView.findViewById(R.id.remove_subtask);
imageClose.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
removeView(subtaskView);
}
});
sb_lay.addView(subtaskView);
String day;
day = getArguments().getString("DATE_KEY");
System.out.println(" Date is choosed " + day);
}
private void removeView(View view){
sb_lay.removeView(view);
}

As I understood, you Have to activities (Activity A and Activity B) and you have a fragment in Activity B. What you want to do is sending some data from activity A to that fragment for whatever reason.
Let's have a note first, You can't directly send data to any fragment of activity without launching it. So in order to send this data to the fragment you have to pass it from Activity A to Activity B as a first step and then send it from Activity B to the Fragment as a second step.
The type of data is very important. If you are sending a custom type (a model java class) you have to define it as Parcelable or if it is a primitive type such as int or float so you can send it directly
this is how to do it in Java
ActivityA.java
class ActivityA extends Activity{
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activityA);
// define your data here
int data = 5;
// define an intent to send the data to the second activity
Intent intent = new Intent(getBaseContext(), SignoutActivity.class);
intent.putExtra("DATA_KEY", data);
startActivity(intent);
}
}
Then what we need to do is
receiving the data in the Activity B
Inflating the fragment
pass the data to the fragment
class ActivityB extends Activity{
Int data;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activityB);
Bundle extras = getIntent().getExtras();
if (extras != null) {
//The key argument here must match that used in the other activity
data = extras.getInt("DATA_KEY");
}
// Fragment instance
FragmentClass frag = new FragmentClass();
Bundle bundle = new Bundle();
bundle.putInt("DATA_KEY", data );
frag.setArguments(bundle);
FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.replace(R.id.fragment_container, mFeedFragment);
fragmentTransaction.commit();
}
}
and then receive it the same way we received it in the Activity B

how to call dialog fragment with listview and search filter from a fragment and save selected item value in parent fragment as string?

public class fragment_oneway_flight extends Fragment {
private Spinner spinner1 ;
Context thiscontext;
private int mYear, mMonth, mDay, mHour, mMinute;
int countadult= 1;
int countchild= 0;
int countinfant= 0;
private ProgressDialog pDialog,pDialog1;
TextView quantity_adult_textview, quantity_child_textview, quantity_infant_textview, textview_city_slct_from_oneway, textview_city_slct_to_oneway;
private ImageButton increment_adult_Button, decrement_adult_Button, increment_child_Button, decrement_child_Button, increment_infant_Button, decrement_infant_Button;
private Button prcdtoonwyrslt;
public fragment_oneway_flight() {
// Required empty public constructor
}
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
thiscontext = container.getContext();
View rootView = inflater.inflate(R.layout.fragment_oneway_flight, container, false);
LinearLayout select_dep_date = (LinearLayout) rootView.findViewById(R.id.date_from_select_oneway);
select_dep_date.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
DialogFragment dFragment = new DatePickerFragment();
// Show the date picker dialog fragment
dFragment.show(getFragmentManager(), "Date Picker");
}
});
LinearLayout city_slct_from_oneway = (LinearLayout) rootView.findViewById(R.id.city_slct_from_oneway);
city_slct_from_oneway.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
DialogBoxFragment DialogBoxFragment = new DialogBoxFragment ();
DialogBoxFragment.show(getFragmentManager(),"dialog");
}
});
LinearLayout city_slct_to_oneway = (LinearLayout) rootView.findViewById(R.id.city_slct_to_oneway);
city_slct_to_oneway.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
DialogBoxFragment2 DialogBoxFragment2 = new DialogBoxFragment2 ();
DialogBoxFragment2.show(getFragmentManager(),"dialog2");
}
});
prcdtoonwyrslt = (Button) rootView.findViewById( R.id.prcdtoonwyrslt );
prcdtoonwyrslt.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(getActivity(), activity_flight_result_oneway.class);
pDialog1 = new ProgressDialog(getActivity());
pDialog1.setMessage("Please Wait...");
pDialog1.setCancelable(false);
String countadult = quantity_adult_textview.getText().toString();
String countchild = quantity_child_textview.getText().toString();
String countinfant = quantity_infant_textview.getText().toString();
String selectedfromcity = textview_city_slct_from_oneway.getText().toString();
String selectedtocity = textview_city_slct_to_oneway.getText().toString();
intent.putExtra("adultsnos", countadult);
intent.putExtra("childsnos", countchild);
intent.putExtra("infantsnos", countinfant);
intent.putExtra("fromcity", selectedfromcity);
intent.putExtra("tocity", selectedtocity);
startActivity(intent);
}
});
// button function start
increment_adult_Button = (ImageButton) rootView.findViewById( R.id.increment_adult_Button );
decrement_adult_Button = (ImageButton) rootView.findViewById( R.id.decrement_adult_Button );
increment_child_Button = (ImageButton) rootView.findViewById( R.id.increment_child_Button );
decrement_child_Button = (ImageButton) rootView.findViewById( R.id.decrement_child_Button );
increment_infant_Button = (ImageButton) rootView.findViewById( R.id.increment_infant_Button );
decrement_infant_Button = (ImageButton) rootView.findViewById( R.id.decrement_infant_Button );
quantity_adult_textview = (TextView) rootView.findViewById(R.id.quantity_adult_textview);
quantity_child_textview = (TextView) rootView.findViewById(R.id.quantity_child_textview);
quantity_infant_textview = (TextView) rootView.findViewById(R.id.quantity_infant_textview);
increment_adult_Button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
countadult++;
if(countadult>7){
countadult=7;
}
display(countadult);
}
});
decrement_adult_Button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
countadult--;
if(countadult<1){
countadult=1;
}
display(countadult);
}
});
increment_child_Button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
countchild++;
if(countchild>5){
countchild=5;
}
display(countchild);
}
});
decrement_child_Button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
countchild--;
if(countchild<0){
countchild=0;
}
display(countchild);
}
});
increment_infant_Button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
countinfant++;
if(countinfant>5){
countinfant=5;
}
display(countinfant);
}
});
decrement_infant_Button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
countinfant--;
if(countinfant<0){
countinfant=0;
}
display(countinfant);
}
});
// button function end
setSpinnerContent( rootView );
spinner1.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> id, View rootView, int pos, long arg3) {
if (pos == 0) {
Toast.makeText(getActivity().getApplicationContext(),
"Select Class", Toast.LENGTH_SHORT)
.show();
} else if (pos == 1) {
Toast.makeText(getActivity().getApplicationContext(),
"You have selected Economy", Toast.LENGTH_SHORT)
.show();
} else if (pos == 2) {
Toast.makeText(getActivity().getApplicationContext(),
"You have selected Premium Economy", Toast.LENGTH_SHORT)
.show();
} else if (pos == 3) {
Toast.makeText(getActivity().getApplicationContext(),
"You have selected Business", Toast.LENGTH_SHORT)
.show();
}else if (pos == 4) {
Toast.makeText(getActivity().getApplicationContext(),
"You have selected First Class", Toast.LENGTH_SHORT)
.show();
}
}
#Override
public void onNothingSelected(AdapterView<?> arg0) {
Toast.makeText(getActivity().getApplicationContext(), "Nothing to select", Toast.LENGTH_LONG).show();
}
});
return rootView;
}
private void setSpinnerContent( View rootView ) {
spinner1 = (Spinner) rootView.findViewById( R.id.spinner_flight );
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(getActivity(), R.array.flight_class_array, android.R.layout.simple_spinner_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner1.setAdapter( adapter );
}
public static class DatePickerFragment extends DialogFragment implements DatePickerDialog.OnDateSetListener{
#Override
public Dialog onCreateDialog(Bundle savedInstanceState){
final Calendar calendar = Calendar.getInstance();
int year = calendar.get(Calendar.YEAR);
int month = calendar.get(Calendar.MONTH);
int day = calendar.get(Calendar.DAY_OF_MONTH);
/*
Initialize a new DatePickerDialog
DatePickerDialog(Context context, DatePickerDialog.OnDateSetListener callBack,
int year, int monthOfYear, int dayOfMonth)
*/
DatePickerDialog dpd = new DatePickerDialog(getActivity(), R.style.DateDialog,this,year,month,day);
return dpd;
}
public void onDateSet(DatePicker view, int year, int month, int day){
// Do something with the chosen date
TextView dep_date_flight = (TextView) getActivity().findViewById(R.id.text_dep_date);
// Create a Date variable/object with user chosen date
Calendar cal = Calendar.getInstance();
cal.setTimeInMillis(0);
cal.set(year, month, day, 0, 0, 0);
Date chosenDate = cal.getTime();
// Format the date using style and locale
DateFormat df = DateFormat.getDateInstance(DateFormat.MEDIUM, Locale.US);
String formattedDate = df.format(chosenDate);
// Display the chosen date to app interface
dep_date_flight.setText(formattedDate);
}
}
private void display(int number) {
quantity_adult_textview.setText(String.valueOf(countadult));
quantity_child_textview.setText(String.valueOf(countchild));
quantity_infant_textview.setText(String.valueOf(countinfant));
}
public static class DialogBoxFragment extends DialogFragment {
//declaring variables
private ListView listviewforresults;
//Adapter for listview
ArrayAdapter<String> list1adapter;
//Edittext for search
EditText searchdata;
//ArrayList for listview
ArrayList<String> data=new ArrayList<String>();
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState){
View rootView1 = inflater.inflate(R.layout.fragment_city_select_flight, container, false);
prepareDummyData();
listviewforresults=(ListView)rootView1.findViewById(R.id.showdata);
searchdata=(EditText)rootView1.findViewById(R.id.searchdata);
//set data to Adapter
list1adapter=new ArrayAdapter<String>(getActivity(), country_list,R.id.results,data);
listviewforresults.setAdapter(list1adapter);
//search data when text changes in edittext
searchdata.addTextChangedListener(new TextWatcher() {
#Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
list1adapter.getFilter().filter(s);
}
#Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
#Override
public void afterTextChanged(Editable s) {
}
});
listviewforresults.setOnItemClickListener(new AdapterView.OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// When clicked, show a toast with the TextView text
String selectedFromList = (String) listviewforresults.getItemAtPosition(position).toString();
TextView textview_city_slct_from_oneway = (TextView) getActivity().findViewById(R.id.textview_city_slct_from_oneway);
textview_city_slct_from_oneway.setText(selectedFromList);
getDialog().dismiss();
}
});
getDialog().setTitle("dialog");
return rootView1;
}
public void prepareDummyData()
{
data.add("Chennai");
data.add("Mumbai");
data.add("Bangalore");
data.add("Madurai");
data.add("Coimbatore");
data.add("Newdelhi");
}
}
public static class DialogBoxFragment2 extends DialogFragment {
//declaring variables
private ListView listviewforresults2;
//Adapter for listview
ArrayAdapter<String> list2adapter;
//Edittext for search
EditText searchdata;
//ArrayList for listview
ArrayList<String> data=new ArrayList<String>();
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState){
View rootView2 = inflater.inflate(R.layout.fragment_city_select_flight2, container, false);
prepareDummyData2();
listviewforresults2=(ListView)rootView2.findViewById(R.id.showdata);
searchdata=(EditText)rootView2.findViewById(R.id.searchdata);
//set data to Adapter
list2adapter=new ArrayAdapter<String>(getActivity(), country_list,R.id.results,data);
listviewforresults2.setAdapter(list2adapter);
//search data when text changes in edittext
searchdata.addTextChangedListener(new TextWatcher() {
#Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
list2adapter.getFilter().filter(s);
}
#Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
#Override
public void afterTextChanged(Editable s) {
}
});
listviewforresults2.setOnItemClickListener(new AdapterView.OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// When clicked, show a toast with the TextView text
String selectedFromList2 = (String) listviewforresults2.getItemAtPosition(position).toString();
TextView textview_city_slct_to_oneway = (TextView) getActivity().findViewById(R.id.textview_city_slct_to_oneway);
textview_city_slct_to_oneway.setText(selectedFromList2);
getDialog().dismiss();
}
});
getDialog().setTitle("dialog2");
return rootView2;
}
public void prepareDummyData2() {
data.add("Chennai");
data.add("Mumbai");
data.add("Bangalore");
data.add("Madurai");
data.add("Coimbatore");
data.add("Newdelhi");
}
}
}
the above code is full fragment code with gialog innerclass too. im a beginner can you gys help me out of it?
and actually what i need is i have to click the from and to area in tab view fragment. after slecting it opens a dialog with search filter and listview. after clicking any list item it should diaplay in textview on parent fragment and after that i should be able wo pass the value to next fragment using put intent method.
currently im getting null value when i pass it to the next fragment.
i dont know why.
i have attached an image to get you the clear view. please check it.see here

Problem with secondary Activity cant get data from texView (Solved -- Oleg Golomoz Answer)

Hi i have 2 Activitys in my app and i would take the data from the first activity and insert them on the second one.
Pics:
I have 2 datepickers to select date range and i save it on texView and texView2.
Code: Main Activity
selectDate = (Button) findViewById(R.id.button);
date = (TextView) findViewById(R.id.textView);
selectDate2 = (Button) findViewById(R.id.button2);
date2 = (TextView) findViewById(R.id.textView2);
selectDate.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
calendar = Calendar.getInstance();
year = calendar.get(Calendar.YEAR);
month = calendar.get(Calendar.MONTH);
dayOfMonth = calendar.get(Calendar.DAY_OF_MONTH);
datePickerDialog = new DatePickerDialog(MainActivity.this,
new DatePickerDialog.OnDateSetListener() {
#Override
public void onDateSet(DatePicker datePicker, int year, int month, int day) {
date.setText("Entrada: "+day + "/" + (month + 1) + "/" + year);
}
}, year, month, dayOfMonth);
datePickerDialog.show();
}
});
selectDate2.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
calendar2 = calendar2.getInstance();
year2 = calendar2.get(Calendar.YEAR);
month2 = calendar2.get(Calendar.MONTH);
dayOfMonth2 = calendar2.get(Calendar.DAY_OF_MONTH);
datePickerDialog2 = new DatePickerDialog(MainActivity.this,
new DatePickerDialog.OnDateSetListener() {
#Override
public void onDateSet(DatePicker datePicker, int year, int month, int day) {
date2.setText("Salida: "+day + "/" + (month + 1) + "/" + year);
}
}, year2, month2, dayOfMonth2);
datePickerDialog2.show();
}
});
Activity2:
package com.example.mand.consumirapirest;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.TextView;
public class json extends AppCompatActivity {
TextView tvJSON;
TextView textView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_json);
setTextView();
}
public void setTextView() {
tvJSON = (TextView) findViewById(R.id.tvJSON);
textView = (TextView) findViewById(R.id.textView);
String s = textView.getText().toString();
tvJSON.setText(s);
//String text = textView.getText().toString();
//return text;
}
/*public String getText()
{
}*/
}
Any idea thanks..!

Somewhere in first activity (MainActivity.java):
Button button = findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(MainActivity.this, SecondActivity.class);
// Pass some data
// Key "DATE_KEY" is static field from SecondActivity
intent.putExtra(DATE_KEY, "20.03.2019");
startActivity(intent);
}
});
And in second activity (SecondActivity.java):
public class SecondActivity extends AppCompatActivity {
static final String DATE_KEY = "DATE_KEY";
#Override
protected void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_second);
// Read passed data - String "20.03.2019"
String date = getIntent().getStringExtra(DATE_KEY);
}
}

Use startActivityForResult when calling your second activity then in your second activity use setResult to bring back selected values to first Activity:
in FirstActivity:
void openSecondActivity(){
Intent intent = Intent(context, SecondActivity.class)
startActivityForResult(intent,1004)
}
#Override
void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == 1004) {
if (resultCode == Activity.RESULT_OK) {
//do something with results
}
super.onActivityResult(requestCode, resultCode, data)
}
In SecondActivity:
void returnResult(String result){
Intent returnIntent = new Intent()
returnIntent.putExtra("result", result)
setResult(Activity.RESULT_OK, returnIntent)
finish()
}

Try this
In your MainActivity
buscarButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
startActivity(new Intent(MainActivity.this, json.class).putExtra("extra1",date.getText().toString()).putExtra("extra2",date2.getText().toString()));
}
});
In your json activity
if (getIntent().hasExtra("extra1")){
tvJSON.setText(getIntent().getStringExtra("extra1"));
}
if (getIntent().hasExtra("extra2")){
textView.setText(getIntent().getStringExtra("extra2"));
}

According to documentation.
Send data from FirstActivity:
public void sendMessage(View view) {
Intent intent = new Intent(this, SecondActivity.class);
String message = date.getText().toString();
String message2 = date2.getText().toString();
intent.putExtra(EXTRA_MESSAGE, message);
intent.putExtra(EXTRA_MESSAGE_2, message2);
startActivity(intent);
}
Receive data in SecondActivity:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_second);
// Get the Intent that started this activity and extract the string
Intent intent = getIntent();
String message = intent.getStringExtra(FirstActivity.EXTRA_MESSAGE);
String message2 = intent.getStringExtra(FirstActivity.EXTRA_MESSAGE_2);
// Capture the layout's TextView and set the string as its text
TextView textView = findViewById(R.id.textView);
textView.setText(message);
}

Pass Data from Dialog to new Activity

I am trying pass data from my dialog box to a new Activity. So basically what i want to do for example in my Dialog box i have Name: John, when i click on my okay button it opens a new activity but i want that John to be set in my edit box on my new activity:
Here is my Activity where my Dialog box code is:
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
/** To change selected state view */
view.setSelected(true);
HashMap<String, Object> obj = (HashMap<String, Object>) ADAhere.getItem(position);
String SlectedName = (String) obj.get("NAME");
String SlectedPrice = (String) obj.get("PRICE");
String SlectedSize = (String) obj.get("SIZE");
String SlectedRange = (String) obj.get("RANGE");
String SlectedSupp = (String) obj.get("SUPPLIER");
// Toast.makeText(getActivity().getApplicationContext(), SlectedName, Toast.LENGTH_SHORT).show();
final Dialog dialog = new Dialog(getActivity());
dialog.getWindow();
//dialog.setTitle("Confirm your Vote");
dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
dialog.setContentView(R.layout.diaglog);
final TextView VName = (TextView) dialog.findViewById(R.id.Name);
final TextView VRange = (TextView) dialog.findViewById(R.id.Range);
final TextView VSUPPLIER = (TextView) dialog.findViewById(R.id.Supplier);
final TextView VSIZE = (TextView) dialog.findViewById(R.id.Size);
final TextView VPrice = (TextView) dialog.findViewById(R.id.Price);
VName.setText(SlectedName);
VRange.setText(SlectedRange);
VSUPPLIER.setText(SlectedSupp);
VSIZE.setText(SlectedSize);
VPrice.setText(SlectedPrice);
dialog.show();
Button cancelBtn = (Button) dialog.findViewById(R.id.cancel_btn);
cancelBtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
dialog.dismiss();
}
});
Button UpdateBtn = (Button) dialog.findViewById(R.id.btn_update);
UpdateBtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent i = new Intent(getActivity().getApplicationContext(),Upvalence.class);
startActivity(i);
}
});
Button deleteBtn = (Button) dialog.findViewById(R.id.btn_delete);
deleteBtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent i = new Intent(getActivity().getApplicationContext(),Upvalence.class);
startActivity(i);
}
});
dialog.show();
}
});
so i want to pass VName.setText(SlectedName); to a new activity:
name1.setText(dialogactivityname);

Pass in as an extra:
instead of:
Intent i = new Intent(getActivity().getApplicationContext(),Upvalence.class);
startActivity(i);
you should pass in the name
Intent i = new Intent(getActivity().getApplicationContext(),Upvalence.class);
i.putExtra("string", SlectedName);
startActivity(i);
Then, on your Upvalence activity:
#Override
protected void onCreate(#Nullable Bundle savedInstanceState) {
Bundle arguments = this.getIntent().getExtras();
String yourString = arguments.getString("string");
}

I need to create a first and last button for my ViewPager

Hello need help with a class trying to figure out how to create a first and last button in a fragment that will jump to the first item in a ViewPager and the last item in a ViewPager I'm a bit lost with how to implement. Here is the fragment.
public class CrimeFragment extends Fragment {
private static final String ARG_CRIME_ID = "crime_id";
private static final String DIALOG_DATE = "DialogDate";
private static final int REQUEST_DATE = 0;
private Crime mCrime;
private EditText mTitleField;
private Button mDateButton;
private CheckBox mSolvedCheckBox;
private Spinner mSpinner;
private Button mFirstButton;
private Button mLastButton;
public static CrimeFragment newInstance(UUID crimeId) {
Bundle args = new Bundle();
args.putSerializable(ARG_CRIME_ID, crimeId);
CrimeFragment fragment = new CrimeFragment();
fragment.setArguments(args);
return fragment;
}
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode != Activity.RESULT_OK) {
return;
}
if (requestCode == REQUEST_DATE) {
Date date =
(Date) data.getSerializableExtra(DatePickerFragment.EXTRA_DATE);
mCrime.setDate(date);
updateDate();
}
}
private void updateDate() {
mDateButton.setText(mCrime.getDate().toString());
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
UUID crimeId = (UUID) getArguments().getSerializable(ARG_CRIME_ID);
mCrime = CrimeLab.get(getActivity()).getCrime(crimeId);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_crime, container, false);
mTitleField = (EditText)v.findViewById(R.id.crime_title);
mTitleField.setText(mCrime.getTitle());
mTitleField.addTextChangedListener(new TextWatcher() {
#Override
public void beforeTextChanged(
CharSequence s, int start, int count, int after) {
}
#Override
public void onTextChanged(
CharSequence s, int start, int before, int count) {
}
#Override
public void afterTextChanged(Editable s) {
}
});
mDateButton = (Button) v.findViewById(R.id.crime_date);
updateDate();
mDateButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
FragmentManager manager = getFragmentManager();
DatePickerFragment dialog = DatePickerFragment.newInstance(mCrime.getDate());
dialog.setTargetFragment(CrimeFragment.this, REQUEST_DATE);
dialog.show(manager, DIALOG_DATE);
}
});
mSpinner = (Spinner) v.findViewById(R.id.crime_severity);
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this.getActivity(),
R.array.severity_array, android.R.layout.simple_spinner_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
mSpinner.setAdapter(adapter);
mSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> parentView, View selectedItemView, int position, long id) {
mCrime.setSeverity((String) mSpinner.getSelectedItem());
}
#Override
public void onNothingSelected(AdapterView<?> parentView) {
}
});
mSolvedCheckBox = (CheckBox) v.findViewById(R.id.crime_solved);
mSolvedCheckBox.setChecked(mCrime.isSolved());
mSolvedCheckBox.setOnCheckedChangeListener(
new CompoundButton.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(CompoundButton compoundButton, boolean isChecked) {
mCrime.setSolved(isChecked);
}
});
mFirstButton = (Button) v.findViewById(R.id.first_crime_button);
mFirstButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
}
});
mLastButton = (Button) v.findViewById(R.id.last_crime_button);
mLastButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
}
});
return v;
}
}
Here is the Activity with the ViewPager.
public class CrimePagerActivity extends FragmentActivity{
private static final String EXTRA_CRIME_ID = "com.martin.android.criminalintent.crime_id";
private ViewPager mViewPager;
private List<Crime> mCrimes;
public static Intent newIntent(Context packageContext, UUID crimeId) {
Intent intent = new Intent(packageContext, CrimePagerActivity.class);
intent.putExtra(EXTRA_CRIME_ID, crimeId);
return intent;
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_crime_pager);
UUID crimeId = (UUID) getIntent().getSerializableExtra(EXTRA_CRIME_ID);
mViewPager = (ViewPager) findViewById(R.id.activity_crime_pager_view_pager);
mCrimes = CrimeLab.get(this).getCrimes();
FragmentManager fragmentManager = getSupportFragmentManager();
mViewPager.setAdapter(new FragmentStatePagerAdapter(fragmentManager) {
#Override
public Fragment getItem(int position) {
Crime crime = mCrimes.get(position);
return CrimeFragment.newInstance(crime.getId());
}
#Override
public int getCount() {
return mCrimes.size();
}
});
for (int i = 0; i < mCrimes.size(); i++) {
if (mCrimes.get(i).getId().equals(crimeId)) {
mViewPager.setCurrentItem(i);
break;
}
}
}
}
For the First button Im pretty sure I just need to set item to 0? For last button I need to set item to size - 1 just not sure how to do that.

In your CrimePagerActivity, write two method's to jump to the ViewPager first page and last page.
CrimePagerActivity.java:
public void jumpToFirstPage() {
mViewPager.setCurrentItem(0);
}
public void jumpToLastPage() {
mViewPager.setCurrentItem(mCrimes.size() - 1);
}
Call those method's from mFirstButton and mLastButton click listener method:
CrimeFragment.java:
mFirstButton = (Button) v.findViewById(R.id.first_crime_button);
mFirstButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
((CrimePagerActivity)getActivity()).jumpToFirstPage();
}
});
mLastButton = (Button) v.findViewById(R.id.last_crime_button);
mLastButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
((CrimePagerActivity)getActivity()).jumpToLastPage();
}
});
Hope this will work perfectly.

Ok this was a answer that I was given by the teacher incase anyone is interested.
mFirstButton = (Button) v.findViewById(R.id.first_crime_button);
mFirstButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
ViewPager pager = (ViewPager) getActivity().findViewById(R.id.activity_crime_pager_view_pager);
pager.setCurrentItem(0);
}
});
mLastButton = (Button) v.findViewById(R.id.last_crime_button);
mLastButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
ViewPager pager = (ViewPager) getActivity().findViewById(R.id.activity_crime_pager_view_pager);
pager.setCurrentItem(CrimeLab.get(getActivity()).getCrimes().size()-1);
}
});

Create two button and on click set
viewPager.setCurrentItem(0); // for top
and
viewPager.setCurrentItem(mCrimes.size()); // for last