在布局文件中放一個TextView用來顯示時間，如下所示：
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<?xml version="1.0" encoding="utf-8"?>
開啟一個線程，然后通過handler發(fā)消息，來實時的更新TextView上顯示的系統(tǒng)時間：
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import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.text.format.DateFormat;
import android.widget.TextView;
public class TestActivity extends Activity {
private static final int msgKey1 = 1;
private TextView mTime;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.time);
mTime = (TextView) findViewById(R.id.mytime);
new TimeThread().start();
}
public class TimeThread extends Thread {
@Override
public void run () {
do {
try {
Thread.sleep(1000);
Message msg = new Message();
msg.what = msgKey1;
mHandler.sendMessage(msg);
}
catch (InterruptedException e) {
e.printStackTrace();
}
} while(true);
}
}
private Handler mHandler = new Handler() {
@Override
public void handleMessage (Message msg) {
super.handleMessage(msg);
switch (msg.what) {
case msgKey1:
mTime.setText(getTime());
break;
default:
break;
}
}
};
//獲得當(dāng)前年月日時分秒星期
public String getTime(){
final Calendar c = Calendar.getInstance();
c.setTimeZone(TimeZone.getTimeZone("GMT+8:00"));
String mYear = String.valueOf(c.get(Calendar.YEAR)); // 獲取當(dāng)前年份
String mMonth = String.valueOf(c.get(Calendar.MONTH) + 1);// 獲取當(dāng)前月份
String mDay = String.valueOf(c.get(Calendar.DAY_OF_MONTH));// 獲取當(dāng)前月份的日期號碼
String mWay = String.valueOf(c.get(Calendar.DAY_OF_WEEK));
String mHour = String.valueOf(c.get(Calendar.HOUR_OF_DAY));//時
String mMinute = String.valueOf(c.get(Calendar.MINUTE));//分
String mSecond = String.valueOf(c.get(Calendar.SECOND));//秒
if("1".equals(mWay)){
mWay ="天";
}else if("2".equals(mWay)){
mWay ="一";
}else if("3".equals(mWay)){
mWay ="二";
}else if("4".equals(mWay)){
mWay ="三";
}else if("5".equals(mWay)){
mWay ="四";
}else if("6".equals(mWay)){
mWay ="五";
}else if("7".equals(mWay)){
mWay ="六";
}
return mYear + "年" + mMonth + "月" + mDay+"日"+" "+"星期"+mWay+" "+mHour+":"+mMinute+":"+mSecond;
}
} 以上所述是小編給大家介紹的Android動態(tài)顯示當(dāng)前年月日時分秒系統(tǒng)時間，希望對大家有所幫助，如果大家有任何疑問請給我留言，小編會及時回復(fù)大家的。在此也非常感謝大家對創(chuàng)新互聯(lián)網(wǎng)站的支持！
