本文主要是介绍日期对话框DatePickerDialog,希望对大家解决编程问题提供一定的参考价值,需要的开发者们随着小编来一起学习吧!
在Android应用中,设置日期和时间是非常简单的事,由日期和时间对话框控件搞定。
一、界面
1、打开“src/com.genwoxue.datetimediy/active_main.java”文件。
然后输入以下代码:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:id="@+id/LinearLayout01"android:layout_width="fill_parent"android:layout_height="fill_parent"android:orientation="vertical" ><EditTextandroid:id="@+id/et"android:layout_width="match_parent"android:layout_height="wrap_content"android:enabled="false"android:cursorVisible="true" /><Buttonandroid:id="@+id/dateBtn"android:layout_width="fill_parent" android:layout_height="wrap_content"android:text="@string/date" /> <!-- fill_parent宽度填充整个屏幕 --><Buttonandroid:id="@+id/timeBtn"android:layout_width="fill_parent"android:layout_height="wrap_content"android:text="@string/time" /><DigitalClockandroid:id="@+id/digitalClock"android:layout_width="fill_parent"android:textSize="20sp"android:gravity="center"android:layout_height="wrap_content" /><AnalogClockandroid:id="@+id/analogClock"android:layout_gravity="center"android:layout_width="fill_parent"android:layout_height="wrap_content" /></LinearLayout>
2、打开“src/com.genwoxue.datetimediy/MainActivity.java”文件。
然后输入以下代码:
import java.util.Calendar;import android.app.Activity;
import android.app.DatePickerDialog;
import android.app.Dialog;
import android.app.TimePickerDialog;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.EditText;
import android.widget.TimePicker;public class MainActivity extends Activity {private Button dateBtn = null;private Button timeBtn = null;private EditText et = null;private final static int DATE_DIALOG = 0;private final static int TIME_DIALOG = 1;private Calendar c = null;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);et = (EditText) findViewById(R.id.et);dateBtn = (Button) findViewById(R.id.dateBtn);timeBtn = (Button) findViewById(R.id.timeBtn);dateBtn.setOnClickListener(new View.OnClickListener() {//这样写不用import android.view.View.OnClickListener;@SuppressWarnings("deprecation")@Overridepublic void onClick(View v) {showDialog(DATE_DIALOG);//废弃的自带方法}});timeBtn.setOnClickListener(new OnClickListener() {//这样写要import android.view.View.OnClickListener;@Overridepublic void onClick(View arg0) {showDialog(TIME_DIALOG);}});}//创建日期及时间选择对话框protected Dialog onCreateDialog(int id){Dialog dialog = null;switch(id){case DATE_DIALOG:c = Calendar.getInstance();dialog = new DatePickerDialog(this,new DatePickerDialog.OnDateSetListener() {@Overridepublic void onDateSet(DatePicker dp, int year, int month, int dayOfMonth) {et.setText("您选择了:"+year+"年"+(month+1)+"月"+dayOfMonth+"日");}}, c.get(Calendar.YEAR),//传入年份c.get(Calendar.MONTH),//传入月份c.get(Calendar.DAY_OF_MONTH));//传入天数break;case TIME_DIALOG:c = Calendar.getInstance();dialog = new TimePickerDialog(this, new TimePickerDialog.OnTimeSetListener() {@Overridepublic void onTimeSet(TimePicker view, int hourOfDay, int minute) {et.setText("您选择了:"+hourOfDay+"时"+minute+"分");}}, c.get(Calendar.HOUR_OF_DAY),c.get(Calendar.MINUTE), false);break;}return dialog;}}
2、运行,显示界面:
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