相信对于手机的时间日期设置大家一定都不陌生吧，今天举一个关于时间日期设置的示例，其中有些许不完善之处，例如如何使设置的时间日期和手机系统同步等。感兴趣的读者可以根据自身经验加以完善。
现来看看具体示例，希望对大家有所帮助。
首先是时间设置：
.java文件（mainactivity.java）代码如下：
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package com.example.activity_time_date;
import java.util.calendar;
import android.app.activity;
import android.app.dialog;
import android.app.timepickerdialog;
import android.content.intent;
import android.os.bundle;
import android.view.menu;
import android.view.menuitem;
import android.view.view;
import android.view.view.onclicklistener;
import android.widget.button;
import android.widget.textview;
import android.widget.timepicker;
public class mainactivity extends activity {
private textview mytext = null;
private button mybutton1 = null;
private button mybutton2 = null;
private int mhour;
private int mminute;
static final int time_dialog_id = 0;
private timepickerdialog.ontimesetlistener mtimesetlistener = new timepickerdialog.ontimesetlistener() {
@override
public void ontimeset(timepicker view, int hourofday, int minute) {
// todo auto-generated method stub
mhour = hourofday;
mminute = minute;
updatedisplay();
}
};
@override
protected void oncreate(bundle savedinstancestate) {
super.oncreate(savedinstancestate);
setcontentview(r.layout.activity_main);
mytext = (textview)findviewbyid(r.id.textview);
mybutton1 = (button)findviewbyid(r.id.button1);
mybutton2 = (button)findviewbyid(r.id.button2);
mybutton1.setonclicklistener(new onclicklistener() {
@override
public void onclick(view v) {
// todo auto-generated method stub
showdialog(time_dialog_id);
}
});
mybutton2.setonclicklistener(new onclicklistener() {
@override
public void onclick(view v) {
// todo auto-generated method stub
mainactivity.this.startactivity(new intent(mainactivity.this, dateactivity.class));
}
});
final calendar cal = calendar.getinstance();
mhour = cal.get(calendar.hour_of_day);
mminute = cal.get(calendar.minute);
updatedisplay();
}
private void updatedisplay(){
mytext.settext(new stringbuilder().append(pad(mhour)).append(":")
.append(pad(mminute)));
}
private static string pad(int i){
if (i >= 10)
return string.valueof(i);
else
return "0" + string.valueof(i);
}
@override
protected dialog oncreatedialog(int id) {
switch (id) {
case time_dialog_id:
return new timepickerdialog(this, mtimesetlistener, mhour, mminute,
false);
}
return null;
}
}
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布局文件(activity_main.xml)代码如下：
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<relativelayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="${relativepackage}.${activityclass}" >
<linearlayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
>
<textview
android:id="@+id/textview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
<button
android:id="@+id/button1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="设置时间"
/>
<button
android:id="@+id/button2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="下一页"
/>
</linearlayout>
</relativelayout>
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运行效果如下图所示：
日期设置和时间设置基本一致，在此不再赘述。读者可以调试并改进本文示例代码，相信会有新的收获！