Android Java简单的时间戳到日期转换
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Java simple Timestamp to Date conversion
提问by Tom G
I've been trying to find the answer to this for a while today and there's just so much contradictory information....
我今天一直试图找到这个问题的答案，但有很多相互矛盾的信息......
What I'd like to do is get a current unix timestamp in android, and then convert it to a format that allows me to getHours() and getMinutes().
我想要做的是在 android 中获取当前的 unix 时间戳，然后将其转换为允许我使用 getHours() 和 getMinutes() 的格式。
I'm currently doing this:
我目前正在这样做：
int time = (int) (System.currentTimeMillis());
Timestamp ts = new Timestamp(time);
mHour = ts.getHours();
mMinute = ts.getMinutes();
But it's not giving me a correct value for hour or minute (it's returning 03:38 for the current East-coast time of 13:33).
但它没有给我一个正确的小时或分钟值（它返回 03:38 当前东海岸时间 13:33）。
回答by Paul Burke
This works:
这有效：
final Calendar cal = Calendar.getInstance();
cal.setTimeInMillis(System.currentTimeMillis());
Date date = cal.getTime();
mHour = date.getHours();
mMinute = date.getMinutes();
回答by Mark B
Just use the Java Calendarclass.
只需使用 Java Calendar类。
Calendar c = new GregorianCalendar(); // This creates a Calendar instance with the current time
mHour = c.get(Calendar.HOUR);
mMinute = c.get(Calendar.MINUTE);
Also note that your Android emulator will return times in GMT for the current time. I advise testing this type of code on a real device.
另请注意，您的 Android 模拟器将返回当前时间的 GMT 时间。我建议在真实设备上测试这种类型的代码。
回答by shanmugamgsn
Take a look of this.
看看这个。
Hope this is wat you need.
希望这是你需要的。
Good Luck!!
祝你好运！！
回答by felix fan
int time = (int) (System.currentTimeMillis());
here you should use longinstead of int.
在这里你应该使用long而不是int。
