程式碼方式,一般是放在一個Utils.java作為公共方法

    /// add by xxx.zhou for ArabicRTL support 20141024 begin
    public static boolean isContainEG_IR(String str) {
        if (str == null || str == "")
            return false;
        String rtl[] = new String[4];
        rtl[0] = "[\u0600-\u06ff]"; // Arbic
        rtl[1] = "[\u0750-\u077f]"
 
; // Arbic Supplement
        rtl[2] = "[\ufb50-\ufdff]"; // Arabic PresentationForms A
        rtl[3] = "[\ufe70-\ufeff]"; // Arabic PresentationForms B

        boolean isContained = false;
        for (String s : rtl) {
            Pattern p = Pattern.compile(s);
            Matcher m = p.matcher(str);
            if
 
 (m.find()) {
                isContained = true;
                break; // I've found out contain arabic and returns
            }
        }
        return isContained;
    }

    //判斷是否是一個號碼，常用
    public static boolean isPurePhoneNumber(String str) {
        if (str == null)
            return false; // allan add
 

        char chs[] = str.toCharArray();
        boolean flag = true;
        for (char c : chs) {
            if (c != '+' && !(c >= '0' && c <= '9') && c != '*' && c != ' '
                    && c != ',') {
                flag = false;
                break;
            }
        }
        return flag;
    }

   //設定文字的顯示方向，一般此方法前判斷一下isPurePhoneNumber（）
    public static String ChangeTextForRTL(String orgin, int type) {
        // phone is RTL suport
        if (type == 1) {
            return '\u202D' + orgin + '\u202C';
        } else {
            return '\u202A' + orgin + '\u202C';
        }
    }

    public static void SetTextDIRECTION(CharSequence temp, TextView showtextview) {
        if (showtextview == null)
            return;
        String tempstrings = temp.toString();
        if (!tempstrings.equals("")) {
            boolean iscontain = isContainEG_IR(tempstrings);
            if (iscontain) {
                boolean isfirst = isFirstCharEnglish(tempstrings);
                if (isfirst) {
                    showtextview.setTextDirection(android.view.View.TEXT_DIRECTION_LTR);
                } else {
                    showtextview.setTextDirection(android.view.View.TEXT_DIRECTION_RTL);
                }
            } else {
                showtextview.setTextDirection(android.view.View.TEXT_DIRECTION_LTR);
            }
        } else {
            if (isLanguageEnvRTL()) {
                showtextview.setTextDirection(android.view.View.TEXT_DIRECTION_RTL);
            } else {
                showtextview.setTextDirection(android.view.View.TEXT_DIRECTION_LTR);
            }
        }
    }

    public static boolean isLanguageEnvRTL() {
        java.util.Locale l = java.util.Locale.getDefault();
        String language = l.getLanguage();
        if (language.equals("ar") || language.equals("iw") || language.equals("fa")) {
            return true;
        }
        return false;
    }

    public static boolean isFirstCharEnglish(String str) {
        char chs[] = str.toCharArray();
        char c = ' ';
        for (int i = 0; i < chs.length; i++) {
            if (chs[i] != ' ') {
                c = chs[i];
                break;
            }
        }
        if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')) {
            return true;
        }
        return false;
    }
    /// add by xxx.zhou for ArabicRTL support 20141024 end
    //add by xxx.li for PR884764 20150122 START
    public static boolean isRuLanguage(Context context){
        boolean mIsRussian = "ru".equals(context.getResources().getConfiguration().locale.getLanguage());
        boolean mIsLastMatch = SystemProperties.getBoolean("ro.def.TelephonyProvider.match", false);
        return mIsRussian && mIsLastMatch;
    }
    public static int getConfigPhnumMinMatch(){
        int mMinMatch = Integer.valueOf(SystemProperties.get("ro_config_phnum_significant_len", "7"));
        return mMinMatch;
    }
    //add by xxx.li for PR884764 20150122 END

xml設定
1、strings.xml

 <!-- file values-ar/strings.xml -->  
  <string name="send_msg_to">استورد\u202d%s\u202cتور</string>  
  <string name="send_msg_to">\u200fsend <xliff:g id="number">\u200f%1$d</xliff:g>استورد</string> 

2、佈局檔案TextView
1. 在你的應用程式宣告檔案（manifest）裡宣告開啟RTL mirroring的支援。具體做法是：在manifest.xml宣告檔案的元素中，新增 android:supportsRtl=”true”

1. 修改應用程式中所有的“left/right”佈局屬性，改為對應的”start/end”佈局

1）如果你的應用程式是針對Android 4.2目標平臺（應用的targetSdkVersion或者minSdkVersion是17或者更高), 那麼你就應當用“start”和“end”替換原來的“left”和“right”。例如，android:paddingLeft應當被替換為android:paddingStart。

2) 如果你想讓你的應用程式與Android 4.2之前的版本保持相容（也就是與targetSdkVersion或者minSdkVersion為16或者更早的版本），那麼你應當既加上“start”和“end”，又加上“left”和“right”。例如，你應當同時寫上：adnroid:paddingLeft和android:paddingStart。

        <!--[BUGFIX]-Mod-BEGIN by (xxx.deng),10/27/2015,1103440, -->
        <!--Arabic support,add android:textDirection="ltr" -->
        <EditText
            android:id="@+id/edit_container"
            android:layout_width="0dip"
            android:layout_height="wrap_content"
            android:textDirection="ltr" />
        <!--[BUGFIX]-Mod-END by (xxx),1103440.-->