package com.example.a10_datepicker; import android.app.Activity; import android.app.DatePickerDialog; import android.app.DatePickerDialog.OnDateSetListener; import android.app.Dialog; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.DatePicker; import android.widget.Toast; public class MainActivity extends Activity { private Button button; private static final int DATE_PICKER_ID = 1; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); button = (Button)findViewById(R.id.buttonId); button.setOnClickListener(new ButtonListener()); } // 设置DatePicker对话框的监听器 DatePickerDialog.OnDateSetListener datePickerListener = new OnDateSetListener() { public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) { Toast.makeText(MainActivity.this, year + "年" + monthOfYear + "月" + dayOfMonth + "日", Toast.LENGTH_SHORT).show(); } }; //实现按钮监听器 class ButtonListener implements OnClickListener{ public void onClick(View v) { //该方法用于显示对话框，是继承Activity中的方法，执行该方法系统就会调用onCreateDialog()方法 showDialog(DATE_PICKER_ID); } } //复写该方法显示对话框 @Override protected Dialog onCreateDialog(int id) { if(id == DATE_PICKER_ID){ return new DatePickerDialog(this,datePickerListener,2012,6,1); } return null; } }