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
1 <?xml version="1.0" encoding="utf-8"?> 2 <LinearLayout 3 android:id="@+id/LinearLayout01" 4 android:layout_width="fill_parent" 5 android:layout_height="fill_parent" 6 android:orientation="vertical" 7 xmlns:android="http://schemas.android.com/apk/res/android"> 8 9 <EditText 10 android:id="@+id/edit1" 11 android:layout_width="match_parent" 12 android:layout_height="wrap_content" 13 android:editable="false"/> 14 15 <Button 16 android:id="@+id/btnDate" 17 android:layout_width="match_parent" 18 android:layout_height="wrap_content" 19 android:text="日期对话框"/> 20 <Button 21 android:id="@+id/btnTime" 22 android:layout_width="match_parent" 23 android:layout_height="wrap_content" 24 android:text="时间对话框"/> 25 26 <DigitalClock 27 android:id="@+id/digitalClock1" 28 android:gravity="center" 29 android:layout_width="match_parent" 30 android:layout_height="wrap_content" 31 android:text="DigitalClock" /> 32 33 <AnalogClock 34 android:id="@+id/analogClock1" 35 android:gravity="center" 36 android:layout_width="match_parent" 37 android:layout_height="wrap_content" /> 38 39 </LinearLayout>
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:
时间: 2024-10-22 06:39:56