小编Gau*_*bey的帖子

GregorianCalendar setFirstDayOfWeek不影响前牛轧糖上的WEEK_OF_YEAR

下面的代码给出了Nougat和pre-Nougat的不同结果.看看,如果你想要自己尝试一下.如果有人能解释我为什么并给出解决方案,我将不胜感激.

我想在所有Android版本上获得正确的WEEK_OF_YEAR值,具体取决于一周的第一天.我有一个时间表应用程序,我正在使用gregorianCalendar很多,所以我不想切换到另一个类/ lib.

    //default first day of the week is Monday for replication. I live in the Netherlands, it's weird.
    Locale l = new Locale("nl", "NL");

    GregorianCalendar test = new GregorianCalendar(l);
    test.set(Calendar.YEAR, 2017);
    test.set(Calendar.MONTH, 0);
    test.set(Calendar.DAY_OF_MONTH, 29);//this is a Sunday

    int week = test.get(Calendar.WEEK_OF_YEAR);//should be 4
    test.setFirstDayOfWeek(1);//Set it to Sunday
    int week2 = test.get(Calendar.WEEK_OF_YEAR);//should be 5 but is 4 below nougat???
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android dayofweek gregorian-calendar week-number

11
推荐指数
1
解决办法
452
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创建一个计时器,以秒,分,小时,天为单位显示事件剩余时间

Hello I am trying to create a timer wherein it will take the date and time of the event that will happen and convert it into milliseconds and also it will take current time and then subtract the current time from the event time and will calculate the hour minutes seconds and days from it. What I want to do is display those values in a textview but as and when I try and set it in textview it stops …
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android countdowntimer

3
推荐指数
1
解决办法
5760
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运行start-dfs.sh时出现权限被拒绝错误

我在执行时遇到此错误 start-dfs.sh

Starting namenodes on [localhost] 
pdsh@Gaurav: localhost: rcmd: socket: Permission denied 
Starting datanodes
pdsh@Gaurav: localhost: rcmd: socket: Permission denied
Starting secondary namenodes [Gaurav]
pdsh@Gaurav: Gaurav: rcmd: socket: Permission denied 2017-03-13 09:39:29,559 
WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
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使用hadoop 3.0 alpha 2版本.

任何帮助表示赞赏

sockets hadoop hdfs hadoop-yarn hadoop2

3
推荐指数
4
解决办法
5996
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