21
1月
2016

android 中 系统日期时间的获取

  1. import    java.text.SimpleDateFormat;       
  2.        
  3. SimpleDateFormat    formatter    =   new    SimpleDateFormat    ("yyyy年MM月dd日    HH:mm:ss     ");       
  4. Date    curDate    =   new    Date(System.currentTimeMillis());//获取当前时间       
  5. String    str    =    formatter.format(curDate);       
 

可以获取当前的年月时分,也可以分开写:

 
  1. SimpleDateFormat    sDateFormat    =   new    SimpleDateFormat("yyyy-MM-dd    hh:mm:ss");       
  2. String    date    =    sDateFormat.format(new    java.util.Date());    
 

如果想获取当前的年月,则可以这样写(只获取时间或秒种一样):

Java代码

 

  1. SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM");    
  2. String date=sdf.format(new java.util.Date());    

 

当然还有就是可以指定时区的时间(待):

 

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

 

 

 

       

  1. ContentResolver cv = this.getContentResolver();  
  2.        String strTimeFormat = android.provider.Settings.System.getString(cv,  
  3.                                           android.provider.Settings.System.TIME_12_24);  
  4.         
  5.        if(strTimeFormat.equals("24"))  
  6.       {  
  7.               Log.i("activity","24");  
  8.        }  

 

 

 

 

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

 

 

 

利用Calendar获取

 

 

  1. Calendar c = Calendar.getInstance();  
  2. 取得系统日期:year = c.get(Calendar.YEAR)  
  3.                month = c.grt(Calendar.MONTH)  
  4.                day = c.get(Calendar.DAY_OF_MONTH)  
  5. 取得系统时间:hour = c.get(Calendar.HOUR_OF_DAY);  
  6.                   minute = c.get(Calendar.MINUTE)  
  7.                     Calendar c = Calendar.getInstance();  
  8. 取得系统日期:year = c.get(Calendar.YEAR)  
  9.                    month = c.grt(Calendar.MONTH)  
  10.                    day = c.get(Calendar.DAY_OF_MONTH)  
  11. 取得系统时间:hour = c.get(Calendar.HOUR_OF_DAY);  
  12.                      minute = c.get(Calendar.MINUTE)  

 

 

 

利用Time获取

 

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



唯一不足是取出时间只有24小时模式.

 

 注意月份要加1.

Categories: 安卓开发

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