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  • 安卓杂记(一) 获取时间总结整理

    1.配合使用SimpleDateFormat与Date:
    import    java.text.SimpleDateFormat;     
         
    SimpleDateFormat    formatter    =   new    SimpleDateFormat    ("yyyy年MM月dd日    HH:mm:ss     ");     
    Date    curDate    =   new    Date(System.currentTimeMillis());//获取当前时间     
    String    str    =    formatter.format(curDate);     
    

    若要显示日期,可用‘E’字符,默认为英文,若要变为中文,可参考如下代码:

    SimpleDateFormat sdf = new SimpleDateFormat("yyyy年MM月dd日 E",Locale.CHINA);

    也可以这样写:

    df=DateFormat.getDateTimeInstance(DateFormat.FULL,DateFormat.FULL,Locale.CHINA);
    System.out.println(df.format(new Date()));

    2.获取Android小时制(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)


    3.利用Calender获取时间:

    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)


    4.利用Time获取时间:

    Time t=new Time(); // or Time t=new Time("GMT+8"); 加上Time Zone资料。
    t.setToNow(); // 取得系统时间。
    int year = t.year;
    int month = t.month;
    int date = t.monthDay;
    int hour = t.hour; // 0-23
    int minute = t.minute;
    int second = t.second;

    注:Time取出的只有24小时制



     

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  • 原文地址:https://www.cnblogs.com/jscitlearningshare/p/4340651.html
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