Java tutorial
package com.firsttry.mumbaiparking.helpers; import com.makeshift.wheretopark.R.id; import android.app.Activity; import android.app.DatePickerDialog; import android.app.Dialog; import android.app.DatePickerDialog.OnDateSetListener; import android.content.Context; import android.content.SharedPreferences; import android.os.Bundle; import android.support.v4.app.DialogFragment; import android.util.Log; import android.view.ViewGroup; import android.webkit.WebView.FindListener; import android.widget.DatePicker; import android.widget.EditText; /*Created this class after spending more than 2 hrs on understanding the Fragment * and how it works. * This class is being used to pick dates for the ReminderActivity * #Saavn : Ehsaan tera hoga mujhpar, Junglee * #Saavn : Aaj kal tere mere pyaar ke charche */ public class DatePickerHelper extends DialogFragment implements OnDateSetListener { EditText pucBox, insuranceBox, licenseBox; Context context; SharedPreferences prefs; @Override public Dialog onCreateDialog(Bundle savedInstanceState) { prefs = getActivity().getSharedPreferences("Reminders", 0); int year, monthOfYear, dayOfMonth; year = dayOfMonth = monthOfYear = 0; //The tag value will decide which values ie:puc,insurance,license will be set as default if (getTag().equals("PUC")) { year = prefs.getInt("PUC_YEAR", 0); monthOfYear = prefs.getInt("PUC_MONTH", 0); dayOfMonth = prefs.getInt("PUC_DATE", 0); } else if (getTag().equals("INSURANCE")) { year = prefs.getInt("INSURANCE_YEAR", 0); monthOfYear = prefs.getInt("INSURANCE_MONTH", 0); dayOfMonth = prefs.getInt("INSURANCE_DATE", 0); } else if (getTag().equals("LICENSE")) { year = prefs.getInt("LICENSE_YEAR", 0); monthOfYear = prefs.getInt("LICENSE_MONTH", 0); dayOfMonth = prefs.getInt("LICENSE_DATE", 0); } return new DatePickerDialog(getActivity(), this, year, monthOfYear, dayOfMonth); } @Override public void onDateSet(DatePicker picker, int year, int monthOfYear, int dayOfMonth) { prefs = getActivity().getSharedPreferences("Reminders", 0); SharedPreferences.Editor edit = prefs.edit(); if (getTag().equals("PUC")) { edit.putInt("PUC_YEAR", year); edit.putInt("PUC_MONTH", monthOfYear); edit.putInt("PUC_DATE", dayOfMonth); } else if (getTag().equals("INSURANCE")) { edit.putInt("INSURANCE_YEAR", year); edit.putInt("INSURANCE_MONTH", monthOfYear); edit.putInt("INSURANCE_DATE", dayOfMonth); } else if (getTag().equals("LICENSE")) { edit.putInt("LICENSE_YEAR", year); edit.putInt("LICENSE_MONTH", monthOfYear); edit.putInt("LICENSE_DATE", dayOfMonth); } edit.commit(); Log.i("parking", "calling updateddisplay"); Log.i("parking", "inside updateddisplay"); updateDisplay(); } public void updateDisplay() { pucBox = (EditText) getActivity().findViewById(id.pucBox); insuranceBox = (EditText) getActivity().findViewById(id.insuranceBox); licenseBox = (EditText) getActivity().findViewById(id.licenseBox); String pucString = prefs.getInt("PUC_DATE", 0) + "/" + (int) (prefs.getInt("PUC_MONTH", 0) + 1) + "/" + prefs.getInt("PUC_YEAR", 0); pucBox.setText(pucString); Log.i("parking", "puc value :" + pucString); String insuranceString = prefs.getInt("INSURANCE_DATE", 0) + "/" + (int) (prefs.getInt("INSURANCE_MONTH", 0) + 1) + "/" + prefs.getInt("INSURANCE_YEAR", 0); insuranceBox.setText(insuranceString); Log.i("parking", "ins value :" + insuranceString); String licenseString = prefs.getInt("LICENSE_DATE", 0) + "/" + (int) (prefs.getInt("LICENSE_MONTH", 0) + 1) + "/" + prefs.getInt("LICENSE_YEAR", 0); licenseBox.setText(licenseString); Log.i("parking", "license value :" + licenseString); } }