Question

我正在编写一个Android应用程序，我需要识别我在String中的文本是用RTL语言（从右到左）编写的？谢谢！

Answer 1

通过检查第一个字符是否在RTL unicode字符范围内，检查给定的String是否是用RTL写的。

  public static boolean checkRtl ( String string ) {
    if (TextUtils.isEmpty(string)) {
        return false;
    }
    char c = string.charAt(0);
    return c >= 0x590 && c <= 0x6ff;
}

Answer 2

两件事：

A / http://pastebin.com/e276zn6y用于确定角色脚本的Javascript代码。应该给你一个想法。并借助：

B / ftp://unicode.org/Public/UNIDATA/extracted/DerivedBidiClass.txt

# Bidi_Class=Right_To_Left
0590          ; R # Cn       <reserved-0590>
05BE          ; R # Pd       HEBREW PUNCTUATION MAQAF
05C0          ; R # Po       HEBREW PUNCTUATION PASEQ
05C3          ; R # Po       HEBREW PUNCTUATION SOF PASUQ
05C6          ; R # Po       HEBREW PUNCTUATION NUN HAFUKHA
05C8..05CF    ; R # Cn   [8] <reserved-05C8>..<reserved-05CF>
05D0..05EA    ; R # Lo  [27] HEBREW LETTER ALEF..HEBREW LETTER TAV

[...]截断

它为您提供所有块的方向（显示RTL部分的开头），您可以弄清楚其余部分。

编辑：您可能还想检查从右到左格式的字符（U + 20xx），请参阅http://www.unicode.org/charts/PDF/U2000.pdf

Answer 3

这在 Java 中不是已经被原生支持了吗？

  // LIST OF ALL SCHOOL
  Map schoolList;

  // LIST OF FEATURED SCHOOL FROM FEATURED/RECOMMEND
  List featuredSchool = [];

  // LIST OF CATEGORIES FROM INFORMATION CATEGORIZE/LIST
  List categories = [];

  void homeCard() {
for (String category in categories) {
  // ADD TO LIST
  for (String school in featuredSchool) {
    if (schoolList[category][school] as String != null) {
        featuredCard.add(
          // CARD TEMPLATE
          HomeCard(
            // FROM UNIVERSITY/INFORMATION/SCHOOL/[RECOMMENDED SCHOOL]/'TITLE'
            name: schoolList[category][school]['title'] as String,

            // FROM UNIVERSITY/INFORMATION/SCHOOL/[RECOMMENDED SCHOOL]/'CATEGORY'
            category: schoolList[category][school]['category'] as String,

            // FROM UNIVERSITY/INFORMATION/SCHOOL/[RECOMMENDED SCHOOL]/'IMGCARD'
            networkImage:
                NetworkImage(schoolList[category][school]['imgcard'] as String),

            // CARD FUNCTION
            function: () {},
          ),
        );
        String name = schoolList[category][school]['title'] as String;
        print(name);
    }
  }
}

是否可以在android / Java中识别字符串文本是从右到左书写的？

3 个答案: