如何在Android中设置长整型以始终显示两位数 [英] How to format longs in android to always display two digits
本文介绍了如何在Android中设置长整型以始终显示两位数的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
String.format(%[B] 02d [/ B],x);
在那里我把x从long转换为string。它不起作用。我想要一个等价的 String.format(%2d,1)
解决方案
您可以使用DeclimalFormat :
NumberFormat f = new DecimalFormat(00 );
long time = 9;
textView.setText(f.format(time));
输出:
09
或者您可以使用 String.format()也是如此:
字符串格式=%1 $ 02d; //两个数字
textView.setText(String.format(format,time));
I have a countdown timer which shows seconds from 60 to 0 (1 min countdown timer). When it reaches 1 digit numbers such as 9,8,7.. it shows 9 instead of 09. I tried using String.format("%[B]02d[/B]", x);
where I converted x from long to string. It didn't work.
I want an equivalent of String.format("%2d", 1)
解决方案
You can accomplish it with DecimalFormat:
NumberFormat f = new DecimalFormat("00");
long time = 9;
textView.setText(f.format(time));
Output:
09
Or you can use String.format() as well:
String format = "%1$02d"; // two digits
textView.setText(String.format(format, time));
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