android 时间

引用：http://www.itokit.com/2011/0517/66276.html

Android的文件有建议用Time代替Calendar。用Time对CPU的负荷会较小。在写Widget时特别重要。

Time t=new Time(); // or Time t=new Time("GMT+8"); 加上Time Zone资料。

来看下IT动力的完整代码吧：

Java Code 复制内容到剪贴板

packageitokit.com;
importandroid.app.Activity;
importandroid.os.Bundle;
importandroid.text.format.Time;
importandroid.widget.TextView;
publicclassShowTimeextendsActivity{
/**Calledwhentheactivityisfirstcreated.*/
@Override
publicvoidonCreate(BundlesavedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
TextViewmyTextView=(TextView)findViewById(R.id.myTextView);
Timetime=newTime("GMT+8");
time.setToNow();
intyear=time.year;
intmonth=time.month;
intday=time.monthDay;
intminute=time.minute;
inthour=time.hour;
intsec=time.second;
myTextView.setText("当前时间为："+year+
"年"+month+
"月"+day+
"日"+hour+
"时"+minute+
"分"+sec+
"秒");
}
}

唯一不足是取出时间只有24小时模式.

========================================================================================

long time=System.currentTimeMillis();
final Calendar mCalendar=Calendar.getInstance();
mCalendar.setTimeInMillis(time);
取得小时：mHour=mCalendar.get(Calendar.HOUR);
取得分钟：mMinuts=mCalendar.get(Calendar.MINUTE);

如何获取Android系统时间是24小时制还是12小时制
ContentResolver cv = this.getContentResolver();
String strTimeFormat = android.provider.Settings.System.getString(cv,
android.provider.Settings.System.TIME_12_24);

if(strTimeFormat.equals("24"))

{
Log.i("activity","24");
}

Calendar c = Calendar.getInstance();
取得系统日期:year = c.get(Calendar.YEAR)
month = c.grt(Calendar.MONTH)
day = c.get(Calendar.DAY_OF_MONTH)
取得系统时间：hour = c.get(Calendar.HOUR_OF_DAY);
minute = c.get(Calendar.MINUTE)

利用Calendar获取
Calendar c = Calendar.getInstance();
取得系统日期:year = c.get(Calendar.YEAR)
month = c.grt(Calendar.MONTH)
day = c.get(Calendar.DAY_OF_MONTH)
取得系统时间：hour = c.get(Calendar.HOUR_OF_DAY);
minute = c.get(Calendar.MINUTE)
Calendar c = Calendar.getInstance();
取得系统日期:year = c.get(Calendar.YEAR)
month = c.grt(Calendar.MONTH)
day = c.get(Calendar.DAY_OF_MONTH)
取得系统时间：hour = c.get(Calendar.HOUR_OF_DAY);
minute = c.get(Calendar.MINUTE)

更多相关文章

随机推荐