Android中阿拉伯文字中的阿拉伯数字 [英] Arabic number in Arabic text in Android

问题描述

编辑

我要将我的应用程序移植到阿拉伯语言环境.我有一些参数类似的getString():

I'm porting my app to Arabic locale. I have some getString() with parameters like:

getString(R.string.distance, distance)

其中<string name="distance">%1d km</string>

要求是阿拉伯语我应该这样显示:"2.3كم".

The requirement is that in Arabic I should show it like this: "2.3 كم".

如果我将其设置为沙特阿拉伯(国家="sa")或阿联酋(国家="ae")的语言环境，则该数字以东阿拉伯语显示，但我的客户希望以西阿拉伯语显示.

If I set as the locale for Saudi Arabia (country = "sa") or UAE (country = "ae") the number are shown in Eastern-Arabic but my client wants them in Western-Arabic.

在 此处 使用的解决方案埃及是当地的一个国家，但对我而言这是不可能的.

The solution here is to use Egypt as a country in the locale but this is not possible for me.

我尝试过:

@TargetApi(Build.VERSION_CODES.LOLLIPOP)
public void setAppContextLocale(Locale savedLocale) {
    Locale.Builder builder = new Locale.Builder();
    builder.setLocale(savedLocale).setExtension(Locale.UNICODE_LOCALE_EXTENSION, "nu-latn");
    Locale locale = builder.build();
    Configuration config = new Configuration();
    config.locale = locale;
    config.setLayoutDirection(new Locale(savedLocale.getLanguage()));
    mAppContext.getResources().updateConfiguration(config, mContext.getResources().getDisplayMetrics());
}

如此问题中所建议，但是此后会忽略该国家/地区，因此SA和AE语言环境都将使用默认文件中的字符串.

as suggested in this question but after that the country is ignored so both SA and AE locales use the strings in the default file.

推荐答案

Google的Bugtracker中存在以下问题:

There's such issue in Google's bugtracker: Arabic numerals in arabic language intead of Hindu-Arabic numeral system

如果特别是埃及语言环境由于某些客户的问题而无法工作(我能理解)，则可以将字符串格式化为任何其他西方语言环境.例如:

If particularly Egypt locale doesn't work due to some customer's issue(I can understand it), then you can format your string to any other western locales. For example:

 NumberFormat nf = NumberFormat.getInstance(new Locale("en","US")); //or "nb","No" - for Norway
 String sDistance = nf.format(distance);
 distanceTextView.setText(String.format(getString(R.string.distance), sDistance));

如果使用新Locale的解决方案根本不起作用，则有一个丑陋的解决方法:

If solution with new Locale doesn't work at all, there's an ugly workaround:

public String replaceArabicNumbers(String original) {
    return original.replaceAll("١","1")
                    .replaceAll("٢","2")
                    .replaceAll("٣","3")
                    .....;
}

(及其周围的变体以及Unicodes匹配(U + 0661，U + 0662，...).请参阅更多类似的想法

(and variations around it with Unicodes matching (U+0661,U+0662,...). See more similar ideas here)

更新1: 为了避免到处一一调用格式化字符串，我建议创建一个微小的Tool方法:

Upd1: To avoid calling formatting strings one by one everywhere, I'd suggest to create a tiny Tool method:

public final class Tools {

    static NumberFormat numberFormat = NumberFormat.getInstance(new Locale("en","US"));

    public static String getString(Resources resources, int stringId, Object... formatArgs) {
        if (formatArgs == null || formatArgs.length == 0) {
            return resources.getString(stringId, formatArgs);
        }

        Object[] formattedArgs = new Object[formatArgs.length];
        for (int i = 0; i < formatArgs.length; i++) {
            formattedArgs[i] = (formatArgs[i] instanceof Number) ?
                                  numberFormat.format(formatArgs[i]) :
                                  formatArgs[i];
        }
        return resources.getString(stringId, formattedArgs);
    }
}

....

distanceText.setText(Tools.getString(getResources(), R.string.distance, 24));

或者覆盖默认的TextView并在setText(CharSequence text, BufferType type)

public class TextViewWithArabicDigits extends TextView {
    public TextViewWithArabicDigits(Context context) {
        super(context);
    }

    public TextViewWithArabicDigits(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    @Override
    public void setText(CharSequence text, BufferType type) {
        super.setText(replaceArabicNumbers(text), type);
    }

    private String replaceArabicNumbers(CharSequence original) {
        if (original != null) {
            return original.toString().replaceAll("١","1")
                    .replaceAll("٢","2")
                    .replaceAll("٣","3")
                    ....;
        }

        return null;
    }
}

我希望这会有所帮助

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