Android应用源码之33.日期、时间控件学习-IT计算机-毕业设计.zip

package com.szy.datepicker; import java.util.Calendar; import android.app.Activity; import android.app.DatePickerDialog; import android.app.Dialog; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.DatePicker; import android.widget.TextView; import android.widget.Toast; import android.widget.DatePicker.OnDateChangedListener; public class MainActivity extends Activity { private DatePicker datePicker; private TextView mDateDisplay; private Button mPickDate; private int mYear; private int mMonth; private int mDay; static final int DATE_DIALOG_ID = 0; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); // capture our View elements mDateDisplay = (TextView) findViewById(R.id.dateDisplay); mPickDate = (Button) findViewById(R.id.pickDate); // add a click listener to the button mPickDate.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { showDialog(DATE_DIALOG_ID); } }); // get the current date final Calendar c = Calendar.getInstance(); mYear = c.get(Calendar.YEAR); mMonth = c.get(Calendar.MONTH); mDay = c.get(Calendar.DAY_OF_MONTH); // display the current date (this method is below) updateDisplay(); datePicker=(DatePicker)findViewById(R.id.datePicker); datePicker.init(mYear, mMonth, mDay, new OnDateChangedListener() { @Override public void onDateChanged(DatePicker view, int year, int monthOfYear, int dayOfMonth) { Toast.makeText(MainActivity.this, year+"-"+monthOfYear+"-"+dayOfMonth, Toast.LENGTH_LONG).show(); } }); } @Override protected Dialog onCreateDialog(int id) { switch (id) { case DATE_DIALOG_ID: return new DatePickerDialog(this, mDateSetListener, mYear, mMonth, mDay); } return null; } // the callback received when the user "sets" the date in the dialog private DatePickerDialog.OnDateSetListener mDateSetListener = new DatePickerDialog.OnDateSetListener() { public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) { mYear = year; mMonth = monthOfYear; mDay = dayOfMonth; updateDisplay(); } }; // updates the date in the TextView private void updateDisplay() { mDateDisplay.setText(new StringBuilder() // Month is 0 based so add 1 .append("时间：").append(mYear).append("-").append(mMonth + 1).append("-").append(mDay)); } }