As I am new to Android development I am trying to display DatePicker dialog on Android 2.3.3 emulator,but while it is crashing. I am followed what am I missing to include in my code? But this code is working in Android 4.0.
DatePickerFragment class
public class DatePickerFragment extends DialogFragment implements 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) {
// Do something with the date chosen by the user
}
}
The activity class that starts the DatePicker Dialog:
import android.os.Bundle;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.DialogFragment;
import android.support.v4.app.FragmentActivity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
#SuppressLint({ "NewApi", "NewApi", "NewApi" })
public class FormAnalysis extends FragmentActivity{
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.fanalysis);
//getActionBar().setDisplayHomeAsUpEnabled(true);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.fanalysis, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
//switch (item.getItemId()) {
// case android.R.id.home:
// NavUtils.navigateUpFromSameTask(this);
return true;
//}
//return super.onOptionsItemSelected(item);
}
public void generate(View view){
}
public void startDialog(View view){
DialogFragment newFragment = new DatePickerFragment();
newFragment.show(getSupportFragmentManager(), "datePicker");} }
Update
Here is the Stack Trace
[2012-11-16 00:31:55 - Food Security] ActivityManager: Starting: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] cmp=kz.bimash.food.security/.Starter }
[2012-11-16 00:31:55 - Food Security] ActivityManager: Warning: Activity not started, its current task has been brought to the front
Your DialogFragment import is for the incorrect version of the class. It needs to be android.support.v4.app.DialogFragment instead of android.app.DialogFragment, otherwise it will not work correctly on 2.3.
Related
I am trying to create an app that allows me to pick a date and a table is populated with appointments on that day. I am having troubles with getting the date picker to show.
I have taken a look at this https://developer.android.com/guide/topics/ui/controls/pickers and created a date picker from this code. I want to call that date picker from a button press found in the AddAppointmentActivity class.
Here is my Appointment class:
package com.example.dentdevils.ui.HomeLinks;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;
import androidx.fragment.app.DialogFragment;
import android.app.DatePickerDialog;
import android.app.Dialog;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.TextView;
import com.example.dentdevils.R;
import com.example.dentdevils.ui.HomeActivity;
import java.util.Calendar;
public class AddAppointmentActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_add_appointment);
// Date label
TextView dateLabel = (TextView) findViewById(R.id.txtDateLabel);
// Date Picker Button Functionality
Button datePicker = (Button) findViewById(R.id.btnDatePicker);
datePicker.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
}
});
// Back Button Functionality
Button btnBack = (Button) findViewById(R.id.btnBack);
btnBack.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent launchHomepage = new Intent(AddAppointmentActivity.this, HomeActivity.class);
startActivity(launchHomepage);
}
});
}
}
class DatePickerFragment extends DialogFragment implements DatePickerDialog.OnDateSetListener {
#NonNull
#Override
public Dialog onCreateDialog(#Nullable 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);
return new DatePickerDialog(getActivity(), this, year, month, day);
}
#Override
public void onDateSet(DatePicker view, int year, int month, int dayOfMonth) {
// Get date set by user and display appointments in table for the date chosen.
}
public void showDatePickerDialog() {
DialogFragment newFragment = new com.example.dentdevils.ui.HomeLinks.DatePickerFragment();
newFragment.show(getFragmentManager(), "datePicker");
}
}
I did have the classes in separate files but was testing different things hence why they are in the same file (I will move them back out again to separate files after I have managed to call the date picker).
My question is, how would I call the date picker dialog from the button press?
datePicker.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
DialogFragment newFragment = new DatePickerFragment();
newFragment.show(getSupportFragmentManager(), "datePicker");
}
});
You don't need create an extra dialog fragment for date picker. Just create DatePickerDialog object and call show().
Example:
val calendar = Calendar.getInstance()
val dialog = DatePickerDialog(context,
DatePickerDialog.OnDateSetListener { view, year, month, dayOfMonth ->
// TODO
}, calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_WEEK_IN_MONTH))
dialog.show()
I want to get the selected Date from the DatePickerDialog back to my Fragment.
Whe i test it, i only get in the Build Log this Error:
E/ViewRootImpl: sendUserActionEvent() mView == null
Testing my code on an Samsung Galaxy S6 Edge (7.0)
The Dialog appears, i can choose a date, click on ok but dont get the result to my TextView... Did i forget a little detail??
My Fragment where i call the DatePickerDialog:
package at.marcelklein.drautaxi;
import android.app.DatePickerDialog;
import android.app.Fragment;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.DialogFragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentTransaction;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.TextView;
import java.text.DateFormat;
import java.util.Calendar;
/**
* Created by Marcel on 10.09.2017.
*/
public class FourthFragment extends Fragment implements DatePickerDialog.OnDateSetListener {
View myView;
TextView textView;
Button btnDayStart, btnDayEnd;
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
myView = inflater.inflate(R.layout.fourth_layout, container, false);
btnDayStart = (Button) myView.findViewById(R.id.button_daystart);
btnDayEnd = (Button) myView.findViewById(R.id.button_dayend);
textView = (TextView) myView.findViewById(R.id.textView12);
btnDayStart.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
DialogFragment datePicker = new DatePickerFragment();
FragmentTransaction ft = ((FragmentActivity)getActivity()).getSupportFragmentManager().beginTransaction();
datePicker.show(ft, "datepicker");
}
});
btnDayEnd.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
//showDialog();
}
});
return myView;
}
#Override
public void onDateSet(DatePicker view, int year, int month, int dayOfMonth) {
Calendar c = Calendar.getInstance();
c.set(Calendar.YEAR, year);
c.set(Calendar.MONTH, month);
c.set(Calendar.DAY_OF_MONTH, dayOfMonth);
String currentDateString = DateFormat.getDateInstance(DateFormat.FULL).format(c.getTime());
textView.setText(currentDateString);
}
}
DatePickerDialog Fragment:
package at.marcelklein.drautaxi;
import android.app.DatePickerDialog;
import android.app.Dialog;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v4.app.DialogFragment;
import java.util.Calendar;
public class DatePickerFragment extends DialogFragment {
DatePickerDialog.OnDateSetListener onDateSet;
#NonNull
#Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
Calendar c = Calendar.getInstance();
int year = c.get(Calendar.YEAR);
int month = c.get(Calendar.MONTH);
int day = c.get(Calendar.DAY_OF_MONTH);
return new DatePickerDialog(getActivity(), onDateSet, year, month, day);
}
}
Thanks in advance!
You forgot to assign your fragment as a listener. Add it as listener like this
btnDayStart.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
DialogFragment datePicker = new DatePickerFragment();
datePicker.onDateSet = FourthFragment.this
FragmentTransaction ft = ((FragmentActivity)getActivity()).getSupportFragmentManager().beginTransaction();
datePicker.show(ft, "datepicker");
}
});
I changed my code to this: DatePickerDialog
public class DatePickerFragment extends DialogFragment implements DatePickerDialog.OnDateSetListener {
#NonNull
#Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
Calendar c = Calendar.getInstance();
int year = c.get(Calendar.YEAR);
int month = c.get(Calendar.MONTH);
int day = c.get(Calendar.DAY_OF_MONTH);
return new DatePickerDialog(getActivity(), this, year, month, day);
}
#Override
public void onDateSet(DatePicker view, int year, int month, int day) {
TextView tv = (TextView) getActivity().findViewById(R.id.textView12);
DecimalFormat df = new DecimalFormat("00");
tv.setText("Gewähltes Datum:");
tv.setText(tv.getText() + "\nJahr: " + year);
tv.setText(tv.getText() + "\nMonat: " + df.format(month));
tv.setText(tv.getText() + "\nTag: " + df.format(day));
}
----------- And my Fragment where i call the DatePickerDialog:
public class FourthFragment extends Fragment {
View myView;
public TextView textView;
Button btnDayStart, btnDayEnd;
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
myView = inflater.inflate(R.layout.fourth_layout, container, false);
btnDayStart = (Button) myView.findViewById(R.id.button_daystart);
btnDayEnd = (Button) myView.findViewById(R.id.button_dayend);
textView = (TextView) myView.findViewById(R.id.textView12);
btnDayStart.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
DialogFragment datePicker = new DatePickerFragment();
datePicker.show(getFragmentManager(), "date Picker");
}
});
return myView;
}
Now i change the TextView directly from the DatePickerDialog.
I think thats not the best Solution...
The think i want is a Range Date Picker like "TimeSquare DatePicker".
But i cant choose days from the past in "TimeSquare DatePicker".
Any suggestions?
I'm new in programming and android. I'm having problem with a datePickerfragment. Error when implementing DatePickerFragment.OnFragmentInteractionListener on mainActivity, it says that "Class MainActivity must either be declared abstract or implement abstract method 'returnDate(String)' in 'OnFragmentInteractionListener'."
I used the datePicker as shown in http://developer.android.com/guide/topics/ui/controls/pickers.html.
The datePicker works but I want to transfer the value selected to mainActivity and I took some tips in this other post: How to transfer the formatted date string from my DatePickerFragment?.
I don't really know what I'm missing. I would also like to know if its possible to transfer de Date value instead of a String value. I wanted to manipulate the Date in mainActivity. Hope someone can help me. Here is my code:
package com.example.android.datepickertest;
import android.app.Activity;
import android.os.Bundle;
import android.support.v4.app.DialogFragment;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.TextView;
public class MainActivity extends FragmentActivity
implements DatePickerFragment.OnFragmentInteractionListener
{
private TextView dataSelecionada;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
dataSelecionada = (TextView)findViewById(R.id.data_selecionada);
}
public void showDatePickerDialog(View v) {
DialogFragment newFragment = new DatePickerFragment();
newFragment.show(getSupportFragmentManager(), "datePicker");
}
#Override
public void setTextDate (int year, int month, int day) {
TextView displayDataSelecionada = (TextView) findViewById(R.id.data_selecionada);
dataSelecionada.setText(day + "/" + month +"/" + year);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// 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);
}
}
and datePickerFragment:n
package com.example.android.datepickertest;
import android.app.Activity;
import android.app.DatePickerDialog;
import android.app.Dialog;
import android.app.Fragment;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.DialogFragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.DatePicker;
import android.widget.TextView;
import java.text.SimpleDateFormat;
import java.util.Calendar;
/**
* A simple {#link Fragment} subclass.
* Activities that contain this fragment must implement the
* {#link DatePickerFragment.OnFragmentInteractionListener} interface
* to handle interaction events.
* Use the {#link DatePickerFragment#newInstance} factory method to
* create an instance of this fragment.
*/
public class DatePickerFragment extends DialogFragment
implements DatePickerDialog.OnDateSetListener {
OnFragmentInteractionListener listener;
public interface OnFragmentInteractionListener {
public void returnDate(String date);
};
#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);
listener=(OnFragmentInteractionListener)getActivity();
// 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
Calendar c= Calendar.getInstance();
c.set(year,month,day);
SimpleDateFormat date = new SimpleDateFormat();
String dateSet = date.format(c.getTime());
if (listener !=null){
listener.returnDate(dateSet);
}
}
}
The error has the answer, when you implement an interface, you should implement all the methods in the interface.
In your case there is no method returndate in your mainactivity.
1.Create the method returnDate or if you use Android studio, just go to file MainActivity and put your cursor over 'public class MainActivity' then press Alt+Enter, the method ll be automatically created, and you ll the date in your mainactivity through this method.
If you need date instead of string change the argument of returndate method to Date, and remove that Simpledateformat instead use
new Date (c.getTime())
I'm trying to have a DatePicker dialog display when a user clicks on a button that says "Set your birthday", and what I need then is for the button to then display the user's selection back in the button. I have tried some of the solutions listed on this site with a TextView, but all to no avail. The DatePicker is displaying just fine, but I can't get the data to show up on the Button. I've tried these solutions: DatePicker not updating Textview in Android Display datepickers value in a textview Android: DatePicker and DatePicker Dialog How to transfer the formatted date string from my DatePickerFragment?
Here's my code:
First the DatePickerFragment:
public class DatePickerFragment extends DialogFragment implements DatePickerDialog.OnDateSetListener {
TheListener listener;
public interface TheListener {
public void returnDate(String date);
}
#Override
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);
return new DatePickerDialog(getActivity(), this, year, month, day);
}
#Override
public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
Calendar c = Calendar.getInstance();
c.set(year, monthOfYear, dayOfMonth);
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
String formattedDate = sdf.format(c.getTime());
if (listener != null) {
listener.returnDate(formattedDate);
}
}
}
Now, the Fragment that is calling it:
public class SignUpFragment extends Fragment implements MyBirthday.TheListener {
private Button btnBirthday;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_signup, container, false);
return view;
}
#Override
public void onResume() {
super.onResume();
btnBirthday = (Button) getActivity().findViewById(R.id.signup_birthday_button);
btnBirthday.setText("Set your birthday");
btnBirthday.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
DialogFragment picker = new DatePickerFragment();
picker.show(getFragmentManager(), "datePicker");
}
});
}
#Override
public void returnDate(String date) {
btnBirthday.setText(date);
}
}
Any and all help will be greatly appreciated. If this is a duplicate question, I'm sorry for that, but I couldn't find a way to get my program to behave in the way I would like for it to. I couldn't find a solution on here.
Thanks in advance.
Try this. This will show you how to render the information in a textview, but you can transfer that to a button as well. You can find the full source code on http://www.ahotbrew.com/android-datepicker-example/
package com.ahotbrew.datepicker;
import android.app.DatePickerDialog;
import android.app.Dialog;
import android.support.v4.app.DialogFragment;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.DatePicker;
import android.widget.TextView;
import java.util.Calendar;
public class MainActivity extends ActionBarActivity {
public static TextView SelectedDateView;
public static 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) {
SelectedDateView.setText("Selected Date: " + (month + 1) + "-" + day + "-" + year);
}
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
SelectedDateView = (TextView) findViewById(R.id.selected_date);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// 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);
}
public void showDatePickerDialog(View v) {
DialogFragment newFragment = new DatePickerFragment();
newFragment.show(getSupportFragmentManager(), "datePicker");
}
}
I have 1 Activity showing 1 DialogFragment and I use setAlwaysFinish app to force the Activity to get killed after onPause.
After pausing & restoring the Activity, I sometimes got 2 or 3 of the same DialogFragment shown. Does anybody know how to prevent this?
Note: I left the Activity with the Dialog still showing. The bug's revealed after several trying with setAlwaysFinish.
Code: Activity
package com.example.testdialog;
import java.util.Calendar;
import android.os.Bundle;
import android.support.v4.app.DialogFragment;
import android.support.v4.app.FragmentActivity;
import android.view.Menu;
import android.view.View;
public class MainActivity extends FragmentActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void showDialog(View v) {
Calendar today = Calendar.getInstance();
DialogFragment d = DateDialog.newInstance(today.get(Calendar.DAY_OF_MONTH), today.get(Calendar.MONTH), today.get(Calendar.YEAR));
d.show(getSupportFragmentManager(), "mydialog");
}
}
Code: DialogFragment
package com.example.testdialog;
import android.app.DatePickerDialog;
import android.app.DatePickerDialog.OnDateSetListener;
import android.app.Dialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.DialogFragment;
import android.widget.DatePicker;
public class DateDialog extends DialogFragment implements OnDateSetListener {
public static final String TAG = "datepicker";
public static final int SEARCH_FLIGHT = 0;
public static final int PASSENGER = 1;
static DateDialog newInstance(int day, int month, int year) {
DateDialog d = new DateDialog();
Bundle bun = new Bundle();
bun.putInt("day", day);
bun.putInt("month", month);
bun.putInt("year", year);
d.setArguments(bun);
return d;
}
#Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
Bundle bun = getArguments();
int year = bun.getInt("year");
int month = bun.getInt("month");
int day = bun.getInt("day");
DatePickerDialog d = new DatePickerDialog(getActivity(), this, year, month, day);
d.setButton(DialogInterface.BUTTON_POSITIVE, "OK", d);
d.setTitle("my dialog");
return d;
}
#Override
public void onDestroyView() {
Dialog d = getDialog();
if (d != null && getRetainInstance())
d.setDismissMessage(null);
super.onDestroyView();
}
}
You can prefent it by using this in your dialogfragment:
#Override
public void show(FragmentManager manager, String tag) {
if (tag != null && tag.equals("FRAGMENT_TAG_MAX_ONE_INSTANCE")) {
// we do not show it twice
if (manager.findFragmentByTag(tag) == null) {
super.show(manager, tag);
}
} else {
super.show(manager, tag);
}
}
and changing:
d.show(getSupportFragmentManager(), "FRAGMENT_TAG_MAX_ONE_INSTANCE");
I have same issue and dont know real way to solve it but this way can help you
private void showLostPassDialog() {
if (!dialogShown) {
dialogShown = true;
DialogFragment newFragment = new LostPassDialogFragment();
newFragment.setCancelable(false);
newFragment.show(getSupportFragmentManager(), "dialog");
}
}
and when destroy dialog set dialogShown=false as i did :
public static class LostPassDialogFragment extends SherlockDialogFragment {
....
#Override
public void onDestroy() {
// TODO Auto-generated method stub
dialogShown = false;
super.onDestroy();
}
hope to b e useful
Whenever you close the dialog, close it properly by calling
dialog.dismiss();
dialog.cancel();
For me this same problem occurred when I usedgetDialog().setOnDismissListener() inside DialogFragment.
After going through DialogFragment's documentation I found this:
Note: DialogFragment own the Dialog.setOnCancelListener and
Dialog.setOnDismissListener callbacks. You must not set them yourself.
To find out about these events, override onCancel(DialogInterface) and
onDismiss(DialogInterface) Source: here
Removing getDialog().setOnDismissListener() and implementing onDismiss(DialogInterface) fixed this.