get value from other class revisited - java

My previous question get the value from a method in another class is understandably closed because its duplicate, but I still can't find a way to solve the problem. I will be grateful if someone kindly help. I have progressed a little, but thats not enough.
First, my current code:
MainActivity.java
public class MainActivity extends AppCompatActivity
implements CalFragment.OnDateSelected{
private TextView mTextMessage;
String date = new SimpleDateFormat("yyyy-MM-dd", Locale.getDefault()).format(new Date());
private BottomNavigationView.OnNavigationItemSelectedListener mOnNavigationItemSelectedListener
= new BottomNavigationView.OnNavigationItemSelectedListener() {
#Override
public boolean onNavigationItemSelected(#NonNull MenuItem item) {
switch (item.getItemId()) {
case R.id.navigation_home:
mTextMessage.setText(R.string.menu_home);
return true;
case R.id.navigation_dashboard:
//mTextMessage.setText(date);
showDateDialog();
mTextMessage.setText(date);
return true;
case R.id.navigation_notifications:
mTextMessage.setText(R.string.menu_location);
return true;
}
return false;
}
};
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mTextMessage = (TextView) findViewById(R.id.message);
BottomNavigationView navigation = (BottomNavigationView) findViewById(R.id.navigation);
navigation.setOnNavigationItemSelectedListener(mOnNavigationItemSelectedListener);
}
public void showDateDialog() {
DialogFragment CalFragment = new CalFragment();
CalFragment.show(getSupportFragmentManager(), "timePicker");
//date = "Hello";
}
}
and
CalFragment.java
public class CalFragment extends DialogFragment
implements DatePickerDialog.OnDateSetListener {
OnDateSelected mcallback;
public interface OnDateSelected {
public void NewStrDate(String strDate);
}
#Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
// Use the current date as the default date in the picker
final Calendar c = Calendar.getInstance();
int year = c.get(Calendar.YEAR);
int month = c.get(Calendar.MONTH);
int day = c.get(Calendar.DAY_OF_MONTH);
// Create a new instance of DatePickerDialog and return it
return new DatePickerDialog(getActivity(), this, year, month, day);
}
public void onDateSet(DatePicker view, int year, int month, int day) {
// Do something with the date chosen by the user
SimpleDateFormat dateFormatter = new SimpleDateFormat("MM-dd-yyyy");
Date d = new Date(year, month, day);
String strDate = dateFormatter.format(d);
}
}
I want to supply the date from CalFragment to ShowDate dialogue, but its not working. At the present state, it shows implements declaration in MainActivity is faulty. I am reading some java tutorial, but its just my 2nd day. So kindly help a bit.

Related

Showing data using DatePickerDialog on EditText

I was trying to make an EditText where when I click on it a DatePickerDialog will show up so I can choose my birthday and then the date I choose will be written in the EditText. I found this code online but I am having problems with it as the line where it says:
new DatePickerDialog(TheClassName.this, datePickerListener, myCalendar..
The datePickerListener is colored red and I don't understand why? If someone can help me I would really appreciate it.
//some of the needed imports
import android.widget.DatePicker;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Locale;
//private field variables in the Activity class
private Calendar myCalendar = Calendar.getInstance();
private EditText etDate;
//onCreate method of the Activity class
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
etDate = (EditText) findViewById(R.id.et_date);
etDate.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
new DatePickerDialog(TheClassName.this, datePickerListener, myCalendar
.get(Calendar.YEAR), myCalendar.get(Calendar.MONTH),
myCalendar.get(Calendar.DAY_OF_MONTH)).show();
}
});
DatePickerDialog.OnDateSetListener datePickerListener = new DatePickerDialog.OnDateSetListener() {
#Override
public void onDateSet(DatePicker view, int year, int monthOfYear,
int dayOfMonth) {
myCalendar.set(Calendar.YEAR, year);
myCalendar.set(Calendar.MONTH, monthOfYear);
myCalendar.set(Calendar.DAY_OF_MONTH, dayOfMonth);
String myFormat = "MM/dd/yy";
SimpleDateFormat sdf = new SimpleDateFormat(myFormat, Locale.US);
etDate.setText(sdf.format(myCalendar.getTime()));
}
};
}

You need to do some changes as below
Initialize the myCalendar to avoid NullPointerException
myCalendar = new GregorianCalendar();
Declare datePickerListener before using it to avoid Unresolved
variable
Change TheClassName.this to your activity class name to get the
context; I assumed below it as MainActivity.this
Make EditText & DatePickerDialog.OnDateSetListener as final in order to access them from the EditText OnClickListener callback
So with these changes in place, you can replace your code with below:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final EditText etDate = (EditText) findViewById(R.id.et_date);
myCalendar = new GregorianCalendar();
final DatePickerDialog.OnDateSetListener datePickerListener = new DatePickerDialog.OnDateSetListener() {
#Override
public void onDateSet(DatePicker view, int year, int monthOfYear,
int dayOfMonth) {
myCalendar.set(Calendar.YEAR, year);
myCalendar.set(Calendar.MONTH, monthOfYear);
myCalendar.set(Calendar.DAY_OF_MONTH, dayOfMonth);
String myFormat = "MM/dd/yy";
SimpleDateFormat sdf = new SimpleDateFormat(myFormat, Locale.US);
etDate.setText(sdf.format(myCalendar.getTime()));
}
};
etDate.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
new DatePickerDialog(MainActivity.this, datePickerListener, myCalendar
.get(Calendar.YEAR), myCalendar.get(Calendar.MONTH),
myCalendar.get(Calendar.DAY_OF_MONTH)).show();
}
});
}

"cannot find symbol method setOnDismissListener(<anonymous OnDismissListener>)"

So, I try to set an OnDismissListener on a dialog thing.
Datepicker dialog = new Datepicker(v);
dialog.setOnDismissListener(new DialogInterface.OnDismissListener() {
#Override
public void onDismiss(DialogInterface Dialog) {
mGoogleMap.clear();
setMap(mGoogleMap);
}
});
But it says
"Cannot resolve method 'setOnDismissListener(anonymous android.content.DialogInterface.OnDismissListener)'"
The Datepicker class extends DialogFragment, so it should have the setOnDismissListener method?
I've imported android.content.DialogInterface'. Is it confused on thenew DialogInterface.onDismissListener()` for some reason?
Edit: Someone asked for some of the Datepicker code. So here's the constructor and stuff. Let me know if you need anything else.
public class Datepicker extends DialogFragment implements DatePickerDialog.OnDateSetListener {
EditText txtDate;
String strdate;
public Datepicker(View v){
txtDate = (EditText)v;
}
public Dialog onCreateDialog(Bundle savedInstanceState) {
final Calendar c = Calendar.getInstance();
int year = c.get(Calendar.YEAR);
int month = c.get(Calendar.MONTH);
int day = c.get(Calendar.DAY_OF_MONTH);
SimpleDateFormat simpleformat = new SimpleDateFormat("MM/dd/yyyy");
strdate = simpleformat.format(c.getTime());
return new DatePickerDialog(getActivity(), this, year, month, day);
}
}

You have to resolve this issue with a help of interface
public class Main3Activity extends AppCompatActivity implements DatePickerListener{
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
.........
//Initialise or create your dialog like this
DatePicker dialog = new DatePicker(v,this);
}
#Override
public void onDatePickerDismissed() {
//Here You receive the dialog dissmiss listner
mGoogleMap.clear();
setMap(mGoogleMap);
}
}
Create a interface class like
public interface DatePickerListener {
public void onDatePickerDismissed();
}
Change you dialog picker like this
#SuppressLint("ValidFragment")
public class DatePicker extends DialogFragment implements DatePickerDialog.OnDateSetListener {
EditText txtDate;
String strdate;
DatePickerListener datePickerListener;
#SuppressLint("ValidFragment")
public DatePicker(View v, DatePickerListener _datePickerListener){
txtDate = (EditText)v;
this.datePickerListener = _datePickerListener;
}
public DatePicker() {
}
public Dialog onCreateDialog(Bundle savedInstanceState) {
final Calendar c = Calendar.getInstance();
int year = c.get(Calendar.YEAR);
int month = c.get(Calendar.MONTH);
int day = c.get(Calendar.DAY_OF_MONTH);
SimpleDateFormat simpleformat = new SimpleDateFormat("MM/dd/yyyy");
strdate = simpleformat.format(c.getTime());
return new DatePickerDialog(getActivity(), this, year, month, day);
}
#Override
public void onDateSet(android.widget.DatePicker datePicker, int i, int i1, int i2) {
}
#Override
public void onDismiss(DialogInterface dialog) {
datePickerListener.onDatePickerDismissed();
super.onDismiss(dialog);
}
}
Hope it will help you :)

How to access parameters from one method to another one

I'm stuck at here in this program,I want to access parameters of DatePickerFragment into TimePickerFragment.Please help.
public class datepicker extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_datepicker);
Button btn = (Button) findViewById(R.id.datepick);
Button btn2 = (Button) findViewById(R.id.timepick);
// TextView textview = (TextView) findViewById(R.id.textView1);
btn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
DialogFragment dFragment = new DatePickerFragment();
// Show the date picker dialog fragment
dFragment.show(getFragmentManager(), "Date Picker");
}
});
btn2.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
DialogFragment dFragment = new TimePickerFragment();
// Show the time picker dialog fragment
dFragment.show(getFragmentManager(),"Time Picker");
}
});
}
public 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);
DatePickerDialog dpd = new DatePickerDialog(getActivity(),
AlertDialog.THEME_HOLO_DARK, this, year, month, day);
return dpd;
}
public void onDateSet(DatePicker view, int year, int month, int day) {
// Do something with the chosen date
Button textview = (Button) getActivity().findViewById(R.id.datepick);
textview.setText(day + ":" + (month + 1) + ":" + year);
}
}
public class TimePickerFragment extends DialogFragment implements TimePickerDialog.OnTimeSetListener{
public Dialog onCreateDialog(Bundle savedInstanceState) {
// Get a Calendar instance
final Calendar calendar = Calendar.getInstance();
// Get the current hour and minute
int hour = calendar.get(Calendar.HOUR_OF_DAY);
int minute = calendar.get(Calendar.MINUTE);
TimePickerDialog tpd = new TimePickerDialog(getActivity(),
AlertDialog.THEME_DEVICE_DEFAULT_LIGHT, this, hour, minute, false);
return tpd;
}
public void onTimeSet(TimePicker timePicker, int i, int i1) {
Button tv = (Button) getActivity().findViewById(R.id.timepick);
tv.setText(i + ":" + i1);
DatePickerFragment b = new DatePickerFragment();
b.onDateSet(view ,int year,int month,int day);
}
}}
I need year,month,day in TimePickerFragment method.Please solve it asap.Thanks in advance.

showDialog not displayed Android

Inside an Activity, I am calling different fragments , I want the user to be able to change the date by clicking on a textView that displays the current date, the showDialog does not want to be displayed.
dateView.setOnClickListener(new View.OnClickListener() {
#SuppressWarnings("deprecation")
public void onClick(View v) {
getActivity().showDialog(999);
}
});
Android Studio tells me that CreateDialog is never used.
protected Dialog onCreateDialog(int id) {
// TODO Auto-generated method stub
if (id == 999) {
return new DatePickerDialog(getContext(),
myDateListener, year, month, day);
}
return null;
}
Full code:
public class Fragment5 extends android.support.v4.app.Fragment {
private DatePicker datePicker;
private Calendar calendar;
private TextView dateView;
TimePicker timePicker2;
private int year, month, day;
public Fragment5() {
}
#RequiresApi(api = Build.VERSION_CODES.N)
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_fragment5, container, false);
dateView = (TextView) rootView.findViewById(R.id.textView3);
calendar = Calendar.getInstance();
year = calendar.get(Calendar.YEAR);
month = calendar.get(Calendar.MONTH);
day = calendar.get(Calendar.DAY_OF_MONTH);
showDate(year, month+1, day);
dateView.setOnClickListener(new View.OnClickListener() {
#SuppressWarnings("deprecation")
public void onClick(View v) {
getActivity().showDialog(999);
}
});
return rootView;
}
protected Dialog onCreateDialog(int id) {
// TODO Auto-generated method stub
if (id == 999) {
return new DatePickerDialog(getContext(),
myDateListener, year, month, day);
}
return null;
}
private DatePickerDialog.OnDateSetListener myDateListener = new
DatePickerDialog.OnDateSetListener() {
#Override
public void onDateSet(DatePicker arg0,
int arg1, int arg2, int arg3) {
// TODO Auto-generated method stub
// arg1 = year
// arg2 = month
// arg3 = day
showDate(arg1, arg2+1, arg3);
}
};
private void showDate(int year, int month, int day) {
dateView.setText(new StringBuilder().append(day).append("/")
.append(month).append("/").append(year));
}
}
MainActivity
public class MainActivity extends AppCompatActivity {
public static Bundle myBundl = new Bundle();
private List<ItemSlideMenu> listSliding;
private SlidingMenuAdapter3 adapter;
private Calendar calendar;
private TextView dateView;
TimePicker timePicker2;
final Context context = this ;
private int year, month, day;
private ListView listViewSliding;
private DrawerLayout drawerLayout;
private ActionBarDrawerToggle actionBarDrawerToggle;
String name1;
#RequiresApi(api = Build.VERSION_CODES.N)
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
calendar = Calendar.getInstance();
year = calendar.get(Calendar.YEAR);
month = calendar.get(Calendar.MONTH);
day = calendar.get(Calendar.DAY_OF_MONTH);
showDate(year, month+1, day);
//Init component
listViewSliding = (ListView) findViewById(R.id.lv_sliding_menu);
drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
listSliding = new ArrayList<>();
//Add item for sliding list
listSliding.add(new ItemSlideMenu(R.drawable.home_96,"Accueil" ));
listSliding.add(new ItemSlideMenu(R.drawable.cocktail,"Organiser une Sortie"));
listSliding.add(new ItemSlideMenu(R.drawable.geo,"Autour de moi"));
listSliding.add(new ItemSlideMenu(R.drawable.ami,"Liste d'amis" ));
listSliding.add(new ItemSlideMenu(R.drawable.message,"Contact"));
listSliding.add(new ItemSlideMenu(R.drawable.information,"Credits"));
adapter = new SlidingMenuAdapter3(this, listSliding);
listViewSliding.setAdapter(adapter);
//Display icon to open/ close sliding list
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
//Set title
setTitle(listSliding.get(0).getTitle());
//item selected
listViewSliding.setItemChecked(0, true);
//Close menu
drawerLayout.closeDrawer(listViewSliding);
//Display fragment 1 when start
replaceFragment(0);
//Hanlde on item click
listViewSliding.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
//Set title
setTitle(listSliding.get(position).getTitle());
//item selected
listViewSliding.setItemChecked(position, true);
if (position==2){
Intent i2 = new Intent(getApplicationContext(), MapsActivity.class);
startActivity(i2);
} else
{//Replace fragment
replaceFragment(position);
}//Close menu
drawerLayout.closeDrawer(listViewSliding);
}
});
actionBarDrawerToggle = new ActionBarDrawerToggle(this, drawerLayout, R.string.drawer_opened, R.string.drawer_closed){
#Override
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
invalidateOptionsMenu();
}
#Override
public void onDrawerClosed(View drawerView) {
super.onDrawerClosed(drawerView);
invalidateOptionsMenu();
}
};
drawerLayout.setDrawerListener(actionBarDrawerToggle);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main_menu, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
if(actionBarDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
return super.onOptionsItemSelected(item);
}
#Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
actionBarDrawerToggle.syncState();
}
//Create method replace fragment
private void replaceFragment(int pos) {
android.support.v4.app.Fragment fragment = null;
switch (pos) {
case 0:
fragment = new Fragment1();
break;
case 1:
fragment = new Fragment2();
break;
case 2:
fragment = new Fragment3();
break;
case 3 :
fragment = new Fragment4();
break;
}
if(null!=fragment) {
android.support.v4.app.FragmentManager fragmentManager = getSupportFragmentManager();
android.support.v4.app.FragmentTransaction transaction = fragmentManager.beginTransaction();
transaction.replace(R.id.main_content,fragment);
transaction.addToBackStack(null);
transaction.commit();
}
}
#SuppressWarnings("deprecation")
protected Dialog onCreateDialog(int id) {
// TODO Auto-generated method stub
if (id == 999) {
return new DatePickerDialog(this,
myDateListener, year, month, day);
}
else if (id ==98) {
final Dialog dialog = new Dialog(context);
dialog.setContentView(R.layout.custom);
dialog.setTitle("Title...");
// set the custom dialog components - text, image and button
Button dialogButton = (Button) dialog.findViewById(R.id.dialogButtonOK);
dialogButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Fragment6 fragment = null;
fragment = new Fragment6();
FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction transaction = fragmentManager.beginTransaction();
transaction.replace(R.id.contact, fragment);
transaction.addToBackStack(null);
transaction.commit();
dialog.dismiss();
}
});
dialog.show();
// if button is clicked, close the custom dialog
}
return null;
}
private DatePickerDialog.OnDateSetListener myDateListener = new
DatePickerDialog.OnDateSetListener() {
#Override
public void onDateSet(DatePicker arg0,
int arg1, int arg2, int arg3) {
// TODO Auto-generated method stub
// arg1 = year
// arg2 = month
// arg3 = day
showDate(arg1, arg2+1, arg3);
}
};
private void showDate(int year, int month, int day) {
StringBuilder abbes = new StringBuilder().append(day).append("/")
.append(month).append("/").append(year);
Bundle bundle = new Bundle();
bundle.putString("edttext", String.valueOf(abbes));
// set Fragmentclass Arguments
Fragment5 fragobj = new Fragment5();
fragobj.setArguments(bundle);
}
}

Since,
Callback for creating dialogs that are managed (saved and restored) for you by the Activity.
Implement this method in Activityinstead of Fragment
#Override
protected Dialog onCreateDialog(int id) {
// TODO Auto-generated method stub
if (id == 999) {
return new DatePickerDialog(getContext(),
myDateListener, year, month, day);
}
return null;
}
Call Fragment like this;
private void showDate(int year, int month, int day) {
StringBuilder abbes = new StringBuilder().append(day).append("/")
.append(month).append("/").append(year);
if(fragment instanceof Fragment4){
((Fragemnt4)fragment).dateView.setText(""+abbes);
}
}
Make dateView public

showDialog() is deprecated. Replace this code
public class Fragment5 extends android.support.v4.app.Fragment {
private DatePicker datePicker;
private Calendar calendar;
private TextView dateView;
TimePicker timePicker2;
private int year, month, day;
DialogFragment dateFragment;
public Fragment5() {
}
#RequiresApi(api = Build.VERSION_CODES.N)
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_fragment5, container, false);
dateView = (TextView) rootView.findViewById(R.id.textView3);
calendar = Calendar.getInstance();
year = calendar.get(Calendar.YEAR);
month = calendar.get(Calendar.MONTH);
day = calendar.get(Calendar.DAY_OF_MONTH);
showDate(year, month+1, day);
dateView.setOnClickListener(new View.OnClickListener() {
#SuppressWarnings("deprecation")
public void onClick(View v) {
dateFragment = new DatePickerFragment();
dateFragment.show(getFragmentManager(), "datePicker");
}
});
return rootView;
}
private void showDate(int year, int month, int day) {
dateView.setText(new StringBuilder().append(day).append("/")
.append(month).append("/").append(year));
}
class DatePickerFragment extends DialogFragment implements
DatePickerDialog.OnDateSetListener {
#Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
// Use the current date as the default date in the picker
final Calendar c = Calendar.getInstance();
int year = c.get(Calendar.YEAR);
int month = c.get(Calendar.MONTH);
int day = c.get(Calendar.DAY_OF_MONTH);
// Create a new instance of DatePickerDialog and return it
return new DatePickerDialog(getActivity(), this, year, month, day);
}
public void onDateSet(DatePicker view, int year, int month, int day) {
showDate(year,month,day);
}
} }

What exactly showDialog (int id) method does is show a dialog managed by activity. A call to onCreateDialog(int, Bundle) will be made with the same id the first time this is called for a given id. From thereafter, the dialog will be automatically saved and restored.
You must write your onCreateDialog method in Activity as said by #Burhanuddin Rashid but that could cause complexity in data transition between Activity and Fragment.
Further,
void showDialog (int id)
This method was deprecated in API level 13.
Use the new DialogFragment class with FragmentManager instead; this is also available on older platforms through the Android compatibility package.
PS,
I recommend you to use a DialogFragment
For more info check out this official documentation

LayoutInflater with DatePicker Dialog

I am trying to set an editText with a DatePickerDialog inside a .setOnClickListener. where, when the user clicks on the editText the DatePickerDialog will appear and then after the user selects the desirable date it will set it on the editText... something like this : Android:DatePickerDialog on EditText Click Event
and here is my code mycode
Any ideas how to do that?
I tried the above example and many more but nothing seems to work inside the .SetOnClickListener

Use this code:
public class MainActivity extends AppCompatActivity {
EditText text;
private int year,currentYear;
private int month,currentMonth;
private int day,currentDay;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
text = (EditText)findViewById(R.id.edit);
// Get current date by calender
final Calendar c = Calendar.getInstance();
year = c.get(Calendar.YEAR);
month = c.get(Calendar.MONTH);
day = c.get(Calendar.DAY_OF_MONTH);
text.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
new DatePickerDialog(MainActivity.this, new DatePickerDialog.OnDateSetListener() {
#Override
public void onDateSet(DatePicker datePicker, int mYear, int mMonth, int mDay) {
currentDay = mDay;
currentMonth = mMonth+1;
currentYear = mYear;
text.setText(mDay+"-"+(mMonth+1)+"-"+mYear);
}
},year,month,day).show();
}
});
}
}
I have store the user selected year, month, day in currentYear,currentMonth,currentDay respectively.

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