Android_Slip_2B

In the res/layout/activity_main.xml file, add a Button and a TextView:

lt;Button
android:id="@+id/buttonShowDatePicker"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Show DatePicker"
android:onClick="showDatePickerDialog"/>

<TextView
android:id="@+id/textViewSelectedDate"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Selected Date will appear here"/>

In the MainActivity.java file, implement the showDatePickerDialog method:

import android.app.DatePickerDialog;
import android.os.Bundle;
import android.view.View;
import android.widget.DatePicker;
import android.widget.TextView;
import androidx.appcompat.app.AppCompatActivity;

import java.util.Calendar;

public class MainActivity extends AppCompatActivity {

private TextView selectedDateTextView;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

selectedDateTextView = findViewById(R.id.textViewSelectedDate);
}

public void showDatePickerDialog(View view) {
Calendar calendar = Calendar.getInstance();
int year = calendar.get(Calendar.YEAR);
int month = calendar.get(Calendar.MONTH);
int dayOfMonth = calendar.get(Calendar.DAY_OF_MONTH);

new DatePickerDialog( this, (DatePicker view1, int year1, int month1, int dayOfMonth1) -> {
String selectedDate = dayOfMonth1 + "/" + (month1 + 1) + "/" + year1;
selectedDateTextView.setText(selectedDate);
},
year,
month,
dayOfMonth
).show();
}
}