A10_DatePicker的对话框设置(使用OnDateSetListener监听器)

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;
}

}