Android应用开发UI（日期和时间）
Android中的日期和时间很酷，用到了DatePicker和TimePicker组件，效果图：http://dl.iteye.com/upload/attachment/454269/f6ec8c5d-c82d-3769-a260-fc70a7dd3437.jpg
http://dl.iteye.com/upload/attachment/454271/812fcace-8368-3f62-bd93-af5c8b379380.jpg
http://dl.iteye.com/upload/attachment/454273/ce88547c-684f-3c99-9319-d23b99cc3f50.jpg
代码：
1.res/values/string.xml
<?xml version="1.0" encoding="utf-8"?><resources> <string name="title_tx">设置日期和时间:</string> <string name="app_name">设置日期和时间</string> <string name="set_date">设置日期</string> <string name="set_time">设置时间</string></resources>
2,res/layout/main.xml
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" ><TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/title_tx" android:id="@+id/title_tx"> </TextView> <DatePicker android:id="@+id/datePicker1" android:layout_width="wrap_content" android:layout_height="wrap_content"></DatePicker><TimePicker android:id="@+id/timePicker1" android:layout_width="wrap_content" android:layout_height="wrap_content"></TimePicker><Button android:text="@string/set_date"android:id="@+id/set_date" android:layout_width="wrap_content" android:layout_height="wrap_content"></Button><Button android:text="@string/set_time"android:id="@+id/set_time" android:layout_width="wrap_content" android:layout_height="wrap_content"></Button></LinearLayout>
3.Activity类
package com.cottsoft.android;import java.util.Calendar;import android.app.Activity;import android.app.DatePickerDialog;import android.app.TimePickerDialog;import android.os.Bundle;import android.view.View;import android.widget.Button;import android.widget.DatePicker;import android.widget.TextView;import android.widget.TimePicker;public class A010Activity extends Activity {private TextView m_title;private DatePicker m_datePicker;private TimePicker m_timePicker;private Button m_set_date_btn,m_set_time_btn;private Calendar c; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); c = Calendar.getInstance(); m_title = (TextView) findViewById(R.id.title_tx); m_title.setTextSize(20); m_datePicker = (DatePicker) findViewById(R.id.datePicker1); m_datePicker.init(c.get(Calendar.YEAR), c.get(Calendar.MONTH), c.get(Calendar.DAY_OF_MONTH), new DatePicker.OnDateChangedListener() {@Overridepublic void onDateChanged(DatePicker view, int year, int monthOfYear,int dayOfMonth) {//c.set(year, monthOfYear, dayOfMonth);}}); m_timePicker = (TimePicker) findViewById(R.id.timePicker1); m_timePicker.setIs24HourView(true); m_timePicker.setOnTimeChangedListener(new TimePicker.OnTimeChangedListener(){@Overridepublic void onTimeChanged(TimePicker view, int hourOfDay, int minute) {//c.set(year, month, day, hourOfDay, minute)} }); m_set_date_btn = (Button) findViewById(R.id.set_date); m_set_time_btn = (Button) findViewById(R.id.set_time); m_set_date_btn.setOnClickListener(new Button.OnClickListener(){@Overridepublic void onClick(View v) {new DatePickerDialog(A010Activity.this, new DatePickerDialog.OnDateSetListener() {@Overridepublic void onDateSet(DatePicker view, int year, int monthOfYear,int dayOfMonth) {//}}, c.get(Calendar.YEAR), c.get(Calendar.MONTH), c.get(Calendar.DAY_OF_MONTH)).show();} }); m_set_time_btn.setOnClickListener(new Button.OnClickListener(){@Overridepublic void onClick(View v) {new TimePickerDialog(A010Activity.this, new TimePickerDialog.OnTimeSetListener() {@Overridepublic void onTimeSet(TimePicker view, int hourOfDay, int minute) {//}}, c.get(Calendar.HOUR_OF_DAY), c.get(Calendar.MINUTE), true).show();} }); }}
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