Method dataConnSwitchmethod;Class telephonyManagerClass;Object ITelephonyStub;Class ITelephonyClass;TelephonyManager telephonyManager = (TelephonyManager) context .getSystemService(Context.TELEPHONY_SERVICE);if(telephonyManager.getDataState() == TelephonyManager.DATA_CONNECTED){ isEnabled = true;}else{ isEnabled = false; } telephonyManagerClass = Class.forName(telephonyManager.getClass().getName());Method getITelephonyMethod = telephonyManagerClass.getDeclaredMethod("getITelephony");getITelephonyMethod.setAccessible(true);ITelephonyStub = getITelephonyMethod.invoke(telephonyManager);ITelephonyClass = Class.forName(ITelephonyStub.getClass().getName());if (isEnabled) { dataConnSwitchmethod = ITelephonyClass .getDeclaredMethod("disableDataConnectivity");} else { dataConnSwitchmethod = ITelephonyClass .getDeclaredMethod("enableDataConnectivity"); }dataConnSwitchmethod.setAccessible(true);dataConnSwitchmethod.invoke(ITelephonyStub);