//模拟时钟
public class AnalogClockActivity extends Activity {private TextView timeTextView;private Handler handler;protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.analog_clock);timeTextView = (TextView) findViewById(R.id.timeTextViewId);
//        Handler机制发送消息handler = new Handler() {public void handleMessage(Message msg) {timeTextView.setText(currentTime());}};
//        设置时间
        timeTextView.setText(currentTime());new CurrentTimeThread(handler).start();}private String currentTime() {Calendar c = Calendar.getInstance();int year = c.get(Calendar.YEAR);int month = c.get(Calendar.MONTH) + 1;int day = c.get(Calendar.DAY_OF_MONTH);int hour = c.get(Calendar.HOUR_OF_DAY);int minute = c.get(Calendar.MINUTE);int second = c.get(Calendar.SECOND);//(month < 10 ? "0" + month : month)三目运算法String currentTime = year + "-" + (month < 10 ? "0" + month : month) + "-" + (day < 10 ? "0" + day : day) + " "+ (hour < 10 ? "0" + hour : hour) + ":" + (minute < 10 ? "0" + minute : minute) + ":"+ (second < 10 ? "0" + second : second);return currentTime;}}
//开启一个子线程
class CurrentTimeThread extends Thread {private Handler handler;public CurrentTimeThread(Handler handler) {this.handler = handler;}public void run() {while (true) {try {Thread.sleep(1000);handler.sendEmptyMessage(1);} catch (InterruptedException e) {e.printStackTrace();}}}
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical"android:padding="5dp" ><DigitalClockandroid:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_gravity="center"android:textSize="20sp" />
<!-- 模拟时钟 --><AnalogClockandroid:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_gravity="center"android:dial="@drawable/biao_pan" /><TextViewandroid:id="@+id/timeTextViewId"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_gravity="center"android:textSize="20sp" /></LinearLayout>