设置日期对话框在手机经常用到，今天来学习下。

首先设置好布局文件：如图

xml对应代码

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      38     39 
     

注意：EditText里面android:editable="false"这句作用是让编辑框处于不可编辑状态

接下来我们修改下MainActivity.java代码，如下：

1 package com.example.datepickerdialog;  2   3 import java.util.Calendar;  4   5 import android.app.Activity;  6 import android.app.DatePickerDialog;  7 import android.app.Dialog;  8 import android.app.TimePickerDialog;  9 import android.os.Bundle; 10 import android.view.Menu; 11 import android.view.MenuItem; 12 import android.view.View; 13 import android.widget.Button; 14 import android.widget.DatePicker; 15 import android.widget.EditText; 16 import android.widget.TimePicker; 17  18 public class MainActivity extends Activity { 19  20     private EditText m_edit = null; 21     private Button m_btnDate = null; 22     private Button m_btnTime = null; 23     private final static int DIALOG_DATE = 0; 24     private final static int DIALOG_TIME = 1; 25     private Calendar c = null; 26      27     @Override 28     protected void onCreate(Bundle savedInstanceState) { 29         super.onCreate(savedInstanceState); 30         setContentView(R.layout.activity_main); 31          32         m_edit = (EditText)findViewById(R.id.edit1); 33         m_btnDate = (Button)findViewById(R.id.btnDate); 34         m_btnTime = (Button)findViewById(R.id.btnTime); 35               36         m_btnDate.setOnClickListener(new View.OnClickListener() { 37              38             @Override 39             public void onClick(View v) { 40                  showDialog(DIALOG_DATE);         41             } 42         }); 43          44         m_btnTime.setOnClickListener(new View.OnClickListener() { 45              46             @Override 47             public void onClick(View v) { 48                 showDialog(DIALOG_TIME);          49             } 50         }); 51     } 52      53     protected Dialog onCreateDialog(int id){ 54          55         Dialog dialog = null; 56         switch(id){ 57          58         case DIALOG_DATE: 59             c = Calendar.getInstance();  60              dialog = new DatePickerDialog(this,new DatePickerDialog.OnDateSetListener() {   61                  public void onDateSet(DatePicker dp, int year,int month, int dayOfMonth) {   62                      m_edit.setText("您选择了：" + year + "年" + (month+1) + "月" + dayOfMonth + "日");    63                  }    64              }, c.get(Calendar.YEAR), // 传入年份                 65              c.get(Calendar.MONTH), // 传入月份                  66              c.get(Calendar.DAY_OF_MONTH) // 传入天数  67              ); 68             break; 69              70         case DIALOG_TIME: 71             c=Calendar.getInstance();               72             dialog=new TimePickerDialog(this,new TimePickerDialog.OnTimeSetListener(){    73                 public void onTimeSet(TimePicker view, int hourOfDay, int minute) {     74                     m_edit.setText("您选择了："+hourOfDay+"时"+minute+"分");                    75                 }   76             },   77             c.get(Calendar.HOUR_OF_DAY),  //小时 78             c.get(Calendar.MINUTE),       //分钟 79             false   80             );   81             break; 82         } 83         return dialog;         84     } 85      86  87     @Override 88     public boolean onCreateOptionsMenu(Menu menu) { 89         // Inflate the menu; this adds items to the action bar if it is present. 90         getMenuInflater().inflate(R.menu.main, menu); 91         return true; 92     } 93  94     @Override 95     public boolean onOptionsItemSelected(MenuItem item) { 96         // Handle action bar item clicks here. The action bar will 97         // automatically handle clicks on the Home/Up button, so long 98         // as you specify a parent activity in AndroidManifest.xml. 99         int id = item.getItemId();100         if (id == R.id.action_settings) {101             return true;102         }103         return super.onOptionsItemSelected(item);104     }105 }

提示：在这里我犯了一个小错误,就是重写onCreateDialog函数时我错写成OnCreateDialog，结果运行程序，点击日期和时间对话框都没有效果显示，所以大家在写代码时要注意这些细节。

最后运行效果：