Android 動態顯示時間

標籤：

package code.example.newcodeview;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.text.format.DateFormat;import android.widget.TextView;import android.app.Activity;public class MainActivity extends Activity {private static final int msgKey = 1;private TextView txtTime;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);txtTime = (TextView) findViewById(R.id.txtSystemtime);new TimeThread().start();}public class TimeThread extends Thread {@Overridepublic void run() {do {try {Thread.sleep(1000);Message msg = new Message();msg.what = msgKey;mHandler.sendMessage(msg);} catch (InterruptedException e) {e.printStackTrace();}} while (true);}}private Handler mHandler = new Handler() {@Overridepublic void handleMessage(Message msg) {super.handleMessage(msg);switch (msg.what) {case msgKey:long sysTime = System.currentTimeMillis();CharSequence sysTimeStr = DateFormat.format("hh:mm:ss", sysTime);txtTime.setText("北京時間：" + sysTimeStr);break;default:break;}}};}

　　附圖：

Android 動態顯示時間