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alps\frameworks\base\services\java\com\android\server\ConnectivityService.java 如下2个函数的开头加入如下语句: startUsingNetworkFeature() startUsingNetworkFeatureGemini()         int currentDataConnectionSimId = -1;         if(FeatureOption.MTK_GEMINI_ENHANCEMENT == true){             long currentDataConnectionMultiSimId =  Settings.System.getLong(mContext.getContentResolver(), Settings.System.GPRS_CONNECTION_SIM_SETTING, Settings.System.DEFAULT_SIM_NOT_SET);             currentDataConnectionSimId = SIMInfo.getSlotById(mContext, currentDataConnectionMultiSimId);         }else{             currentDataConnectionSimId = Settings.System.getInt(mContext.getContentResolver(), GPRS_CONNECTION_SETTING, GPRS_CONNECTION_SETTING_DEFAULT) - 1;         }   if(currentDataConnectionSimId < 0){                 return Phone.APN_REQUEST_FAILED;   }

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