我在Android应用程序中有一个非常简单的时间戳功能。我之前有多次类似的工作，但是由于某种原因该功能无法更新。
public class HelperFunctions {
// ..some more functions
public static String generateTimestamp(){
long millis = System.currentTimeMillis();
System.out.println("generatetimestamp "+ String.valueOf(Math.round(millis/1000)));
return String.valueOf(Math.round(millis/1000));
}
}
现在我在我的应用程序中已经存在的可运行状态中使用了此功能，只是多次运行并查看其开发方式...
private final Runnable mUpdateUITimerTask = new Runnable() {
public void run() {
updateGraphics(); //the reason for the runnable
timestamp = HelperFunctions.generateTimestamp(); // my malfunctioning function
}
};
这是我的输出：
03-26 00:23:48.314: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:48.364: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:48.424: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:48.474: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:48.524: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:48.574: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:48.634: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:48.684: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:48.734: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:48.794: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:48.864: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:48.914: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:48.974: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:49.034: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:49.094: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:49.164: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:49.214: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:49.274: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:49.324: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:49.384: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:49.454: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:49.514: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:49.574: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:49.674: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:49.784: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:49.854: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:49.924: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:50.004: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:50.074: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:50.134: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:50.194: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:50.264: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:50.354: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:50.414: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:50.474: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:50.534: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:50.594: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:50.654: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:50.714: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:50.774: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:50.834: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:50.894: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:50.954: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:51.004: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:51.064: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:51.114: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:51.174: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:51.234: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:51.294: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:51.344: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:51.404: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:51.464: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:51.514: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:51.574: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:51.624: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:51.684: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:51.744: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:51.834: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:51.894: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:51.954: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:52.004: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:52.054: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:52.104: I/System.out(8345): generatetimestamp 1395789824
03-26 00:23:52.154: I/System.out(8345): generatetimestamp 1395789824
等等
时间戳由于某种原因而滞后，并保持不变...但是它应该在改变！
有谁知道为什么它不会改变？我觉得这很奇怪……好像system.getmillis卡住了。
不知道这是否重要，但是我正在使用Cyanogenmod在银河选项卡10.1上运行它。
最佳答案
检查设备日期和时间设置。如果日期和时间正确，则使用下面的代码获取时间。
Calendar cal = Calendar.getInstance();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String test = sdf.format(cal.getTime());
Log.d("TEST Date", test);
要不就
return cal.getTime();
它可能会帮助您。