MainActivity.java
package com.cfsuman.androidtutorials;
import android.app.DatePickerDialog;
import android.app.Dialog;
import android.os.Bundle;
import android.widget.Button;
import android.widget.DatePicker;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.view.ContextThemeWrapper;
import androidx.fragment.app.DialogFragment;
import java.util.Calendar;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Get the widgets reference from XML layout
Button button = findViewById(R.id.button);
// Show the date picker dialog
button.setOnClickListener(v -> {
// Initialize a new date picker dialog fragment
DialogFragment dialogFragment = new DatePickerFragment();
// Show the date picker dialog fragment
dialogFragment.show(
getSupportFragmentManager(),
"Date Picker"
);
});
}
public static class DatePickerFragment extends DialogFragment
implements DatePickerDialog.OnDateSetListener{
@NonNull
@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);
// Create a ContextThemeWrapper instance
ContextThemeWrapper contextThemeWrapper
= new ContextThemeWrapper(
getActivity(),
android.R.style.Theme_Holo_Light_Dialog
//android.R.style.Theme_Holo_Dialog
);
// Return the DatePickerDialog
return new DatePickerDialog(
getActivity(),
contextThemeWrapper.getThemeResId(),
this,year,month,day
);
}
public void onDateSet(
DatePicker view, int year, int month, int day){
// Do something with the chosen date
}
}
}
activity_main.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"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#DCDCDC"
android:padding="24dp">
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Show DatePickerDialog"
android:textAllCaps="false"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh79cFCtzLYv9U6i15751nkh6hgUse09BpQVSceq-_aRa9I9vpt7VxJqtZff6QukOZOTcnJFXEGK50-ItTQtdV8H1ompzI1H8A8tUK2tEay6HjqrcFfj8BYSjiSschCTJwqDfT5PnQyBc9p8bcQIAll-hfIY2sHI09JdkcGvRnDpiCB6O4pq3uEwaWkpw/s1600/android_datepickerdialog_theme.png)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhtopgcki65ztawFFfYnL_bQX5G1DseqSduY3UdR6fFeqjbwpFFDbGl469tpewflADmReEUihBbUnC_mDIJObdKVJr0jB_XHJx9w4rOxjCwYjJ_J0P2n9qpJ9VYGV1XyMMNTVAYPNykFF1j0vFvxBu-icXs5F5iCBmfclCHYPCZHxm70l9cB57uHccVFQ/s1600/android_datepickerdialog_theme2.png)