关于安卓开始实现最简单地获取系统时间

 1 package lianxi;
 2
 3 import com.example.jichu_lianxi.R;
 4
 5 import android.app.Activity;
 6
 7 import android.os.Bundle;
 8
 9 import android.text.format.Time;
10
11 import android.widget.TextView;
12 import android.widget.Toast;
13
14 public class GetTime extends Activity {
15
16 /** Called when the activity is first created. */
17
18 @Override
19
20 public void onCreate(Bundle savedInstanceState) {
21
22 super.onCreate(savedInstanceState);
23
24 setContentView(R.layout.gettime);
25
26 TextView myTextView = (TextView)findViewById(R.id.getTime);
27 Time time = new Time("GMT+8");
28 time.setToNow();
29 int year = time.year;           //获取年份
30 int month = time.month;         //获取月份
31 int day = time.monthDay;        //获取日号
32 int hour = time.hour;           //获取小时，注意，这里的小时是24制的
33 int minute = time.minute;       //获取分钟
34 int sec = time.second;          //获取秒
35 String time_s = "当前时间为：" + year + "年 " + month + "月 " + day + "日 " + hour + "时 " + minute + "分 " + sec + "秒";
36 Toast.makeText(GetTime.this,time_s, Toast.LENGTH_SHORT).show();
37
38
39 }
40
41 } 

第二种方法：

package lianxi;

import com.example.jichu_lianxi.R;

import android.app.Activity; 

import android.os.Bundle; 

import android.text.format.Time; 

import android.widget.TextView;
import android.widget.Toast;

public class GetTime extends Activity { 

/** Called when the activity is first created. */ 

@Override 

public void onCreate(Bundle savedInstanceState) { 

super.onCreate(savedInstanceState); 

setContentView(R.layout.gettime); 

 Calendar c = Calendar.getInstance();
                int year = c.get(Calendar.YEAR);   //获取年份
                int month = c.get(Calendar.MONTH);  //获取月份
                int day = c.get(Calendar.DAY_OF_MONTH);  //获取日期
                int hour = c.get(Calendar.HOUR_OF_DAY);  //获取小时
                int minute = c.get(Calendar.MINUTE); //获取分钟String time_s = "当前时间为：" + year + "年 " + month + "月 " + day + "日 " + hour + "时 " + minute + "分 ";Toast.makeText(GetTime.this,time_s, Toast.LENGTH_SHORT).show();

} 

} 

效果图：

参考于    http://www.01yun.com/mobile_development/20130425/378941.html （转载请说明）