public void dispatchDemoCommand(String command, Bundle args) { if (!mDemoMode && command.equals(COMMAND_ENTER)) { mDemoMode = true; } else if (mDemoMode && command.equals(COMMAND_EXIT)) { mDemoMode = false; updateClock(); } else if (mDemoMode && command.equals(COMMAND_CLOCK)) { String millis = args.getString("millis"); String hhmm = args.getString("hhmm"); if (millis != null) { mCalendar.setTimeInMillis(Long.parseLong(millis)); } else if (hhmm != null && hhmm.length() == 4) { int hh = Integer.parseInt(hhmm.substring(0, 2)); int mm = Integer.parseInt(hhmm.substring(2)); mCalendar.set(Calendar.HOUR, hh); mCalendar.set(Calendar.MINUTE, mm); } mCalendar.setTimeInMillis(mCalendar.getTimeInMillis() + 1000); setText(getSmallTime());如何获取到当前系统时间并实时在状态栏中同步更新秒
时间: 2024-03-12 19:47:38 浏览: 16
要获取当前系统时间并实时在状态栏中同步更新秒,可以使用Android系统提供的类来实现。具体步骤如下:
1. 在Activity或Service中获取系统时间,可以使用以下代码:
```
Calendar calendar = Calendar.getInstance();
```
2. 将获取到的时间格式化为需要的字符串格式,可以使用以下代码:
```
SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss");
String timeStr = sdf.format(calendar.getTime());
```
3. 在状态栏中显示时间,可以使用以下代码:
```
NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
NotificationCompat.Builder builder = new NotificationCompat.Builder(this, CHANNEL_ID)
.setSmallIcon(R.drawable.ic_launcher)
.setContentTitle("Title")
.setContentText(timeStr);
Notification notification = builder.build();
notificationManager.notify(NOTIFICATION_ID, notification);
```
其中,CHANNEL_ID和NOTIFICATION_ID分别是通知渠道和通知ID,需要在代码中定义。