android十进制格式为阿拉伯语，符号在数字的右侧 [英] android decimalformat for arabic, symbol is on right side of number

问题描述

我正在尝试支持左语言的RTL，并且正在测试阿拉伯语(对此我一无所知).

I'm trying to support RTL to left languages, and I'm testing with Arabic (which I know nothing about).

负/正符号应该位于数字的右侧还是左侧?我认为应该在左侧，但是当我使用Android的DecimalFormat将数字放入设备设置的语言环境中时，该符号会显示在右侧.

Is the negative/positive symbol supposed to be on the right or left of the number? I think it's supposed to be on the left, but when I use Android's DecimalFormat to put the number in the locale the device is set to, the symbol appears on the right..

有人遇到过这种情况，知道如何解决吗?我能想到的最好是，如果它为负数，则用括号将其打印出来，应该可以解决这个问题，但不是理想的选择.

Has anyone encountered this, know how to work around it? Best I can think is to print it with parentheses if it's negative, that should get around this but isnt ideal.

编辑

对不起，代码总是有帮助的.如果我打印以下内容(经度为负):

Sorry, code always helps. If I print the below (and the longitude is negative):

DecimalFormat coord_df = new DecimalFormat("#.000000");
coord_df.format(loc.getLongitude())

它是这样印刷的

##,######-

其中#号是阿拉伯数字(例如此处的阿拉伯东部行显示的数字): http://en.wikipedia.org/wiki/Eastern_Arabic_numerals )

where the # signs are numbers in arabic (like those shown on the eastern arabic row here: http://en.wikipedia.org/wiki/Eastern_Arabic_numerals)

我需要在数字的正确边上得到负数(我相信这是左边)

I need to get the negative on the correct side of the number (which is the left I believe)

解决方案

我最终只是在需要弄乱显示数字(如答案)时检查设备是否处于RTL中:

I ended up just checking whether the device was in RTL whenever I needed to mess with displaying numbers like the answer here: android determine if device is in right to left language/layout

如果设备是RTL，则我使用带有负号的负子模式作为后缀，如下所示:

If the device is RTL then I use a negative subpattern with a negative sign as a suffix like this:

"#.000000,#.000000-"

推荐答案

只需共享另一种方法，即可在文本视图中将文本方向设置为从左到右"，它将正确显示负号.

Just sharing another approach, in your text views you can set the text direction to Left to Right, it will shows the negative sign correctly.

textView.setTextDirection(TextView.TEXT_DIRECTION_LTR);

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