有些SIM卡在出廠時并沒有預(yù)置VoiceMail number，但運營商又要求能夠根據(jù)PLMN去自適應(yīng)的從手機中讀取到預(yù)設(shè)的VM number。在此介紹以xml的方式預(yù)置VM number的方法，以及如何允許用戶去修改并能夠記住用戶的選擇。VM number使用的優(yōu)先級為: SIM卡讀取>用戶設(shè)置>xml預(yù)置。在用戶修改voice mail number時，優(yōu)先存儲到SIM卡。若SIM卡存儲失敗，則以IMSI為單位存儲到手機中。
1、支持以XML的方式預(yù)置VM number，文件名為：voicemail-conf.xml
文件的內(nèi)容格式為
<?xml version='1.0' encoding='utf-8'?>
<voicemail>
<voicemail numeric="46000" carrier="CMCC" vmnumber="10086" vmtag="CMCC voicemail" />
</voicemail>
2、關(guān)于文件的位置
文件在手機中的位置：system/etc
文件在工程中的位置(GB, GB2): vendor/mediatek/etc
文件在工程中的位置(ICS及以后): mediatek/source/frameworks/telephony/etc
對于GB、GB2的版本，還需要在在build/target/product/xxx.mk (xxx為工程名)中，添加語句PRODUCT_COPY_FILES += vendor/mediatek/etc/voicemail-conf.xml:system/etc/voicemail-conf.xml
對于ICS及ICS2的版本，還需要在build/target/product/common.mk中，添加語句PRODUCT_COPY_FILES += mediate/source/frameworks/telephony/etc/voicemail-conf.xml:system/etc/voicemail-conf.xml
對于JB及JB2以后的版本，還需要在build/target/product/common.mk中，添加語句PRODUCT_COPY_FILES += mediate/frameworks/base/telephony/etc/voicemail-conf.xml:system/etc/voicemail-conf.xml
3、使SIM卡中的VM number優(yōu)先于預(yù)置號碼的方法
將SIMRecords.java (frameworks/base/telephony/java/com/android/internal/telephony/gsm)中的函數(shù)private setVoiceMailByCountry(String spn)中的語句if (mVmConfig.containsCarrier(spn))修改為
if (TextUtils.isEmpty(voiceMailTag) && TextUtils.isEmpty(voiceMailNum) && mVmConfig.containsCarrier(spn))
4、在使用了voicemail-conf.xml來預(yù)置VM number后，使終端用戶可以修改VM number的方法
1) 在SIMRecords.java中添加語句import android.text.TextUtils;
2) 在SIMRecords.java中添加一個成員變量boolean isSetByCountry = false;
3) 將SIMRecords.java中的函數(shù)private setVoiceMailByCountry(String spn)修改為
private void setVoiceMailByCountry(String spn) {
if (TextUtils.isEmpty(voiceMailTag) && TextUtils.isEmpty(voiceMailNum) && mVmConfig.containsCarrier(spn))
{
// isVoiceMailFixed = true; //注釋掉此語句以讓用戶能夠修改
isSetByCountry = true; //讓GsmPhone知道這是從xml中讀取的
voiceMailNum = mVmConfig.getVoiceMailNumber(spn);
voiceMailTag = mVmConfig.getVoiceMailTag(spn);
}
4) 在GSMPhone.java (frameworks/base/telephony/java/com/android/internal/telephony/gsm)中的函數(shù)handleMessage中的語句case EVENT_SIM_RECORDS_LOADED:中將語句 if (imsi != null && imsiFromSIM != null && !imsiFromSIM.equals(imsi))
{
…
}
修改為
SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(getContext());
// 當(dāng)相應(yīng)卡槽更換SIM卡后，是否清除用戶對之前SIM卡的VM number設(shè)置
boolean clear_if_change_sim = sp.getBoolean(“clear_if_change”, false);
if (clear_if_change_sim && imsi != null && imsiFromSIM != null && !imsiFromSIM.equals(imsi)){
//storeVoiceMailNumber(null);
Log.d(LOG_TAT, “reset vm number because sim changed”);
SharedPreferences.Editor editor = sp.edit();
editor.remove(getVmSimImsi());
editor.apply();
setVmSimImsi(null);
}
5) 將GSMPhone.java中的函數(shù)private void storeVoiceMailNumber(String number)中的語句editor.putString(VM_NUMBER+mySimId, number);修改為editor.putString(getSubscriberId(), number); //不再使用卡槽作為保存VM number的單位，而使用IMSI
6) 將GSMPhone.java中的函數(shù)public String getVoiceMailNumber()中的語句if (TextUtils.isEmpty(number))修改為 if (TextUtils.isEmpty(number) || ((SIMRecords)mIccRecords).isSetByCountry) //如果SIM卡中
//無VM number或是通過voicemail-conf.xml來設(shè)置的，則應(yīng)該讀取一下Preference，看是否用戶
//對此SIM卡設(shè)置過VM number。
并且將語句number = sp.getString(VM_NUMBER+mySimId, null);修改為
Log.d(LOG_TAG, vm num from simRecords, num= “+number+” is from factory= “+ ((SIMRecords)mIccRecords).isSetbyCountry);
String temp = sp.getString(getSubscriberId(), null);
if (temp != null)
{
Log.d(LOG_TAG, “replace vm num with user defined, num= “+temp);
number = temp;
}
