拨号时获取双卡状态及飞行模式判断（设置）

源码在：CallController.java中，以下是截取紧急拨号获取SIM1或SIM2以及另一张卡是否正在拨打电话的判断代码。

  /* below are added by mediatek .inc */    private CallStatusCode checkIfOkToInitiateOutgoingCall(int state, int slot) {        log("checkIfOkToInitiateOutgoingCall, state = " + state + " slot = " + slot);        if(slot == -1)            return checkIfOkToInitiateOutgoingCall(state);        GeminiPhone phone = (GeminiPhone) PhoneApp.getInstance().phone;        if(slot == Phone.GEMINI_SIM_1) {            if(phone.getStateGemini(Phone.GEMINI_SIM_2) != Phone.State.IDLE)                return CallStatusCode.CALL_FAILED;        } else {            if(phone.getStateGemini(Phone.GEMINI_SIM_1) != Phone.State.IDLE)                return CallStatusCode.CALL_FAILED;        }        final int realState = phone.getServiceStateGemini(slot).getState();        log("realState = " + realState);        return checkIfOkToInitiateOutgoingCall(realState);    }    int pickBestSlotForEmergencyCall() {        log("pickBestSlotForEmergencyCall");        int slot = Phone.GEMINI_SIM_1;        GeminiPhone phone = (GeminiPhone) PhoneApp.getInstance().phone;        boolean radioOn0 = phone.isRadioOnGemini(Phone.GEMINI_SIM_1);        boolean radioOn1 = phone.isRadioOnGemini(Phone.GEMINI_SIM_2);        log("radioOn0 = " + radioOn0 + " radioOn1 = " + radioOn1);        if(radioOn0 && radioOn1) {            // if both radio are power on            // use the one in service            if(phone.getStateGemini(Phone.GEMINI_SIM_2) != Phone.State.IDLE)                slot = Phone.GEMINI_SIM_2;            else if(phone.getStateGemini(Phone.GEMINI_SIM_1) != Phone.State.IDLE)                slot = Phone.GEMINI_SIM_1;            else {                final int state0 = phone.getServiceStateGemini(Phone.GEMINI_SIM_1).getState();                final int state1 = phone.getServiceStateGemini(Phone.GEMINI_SIM_2).getState();                log("service state0 = " + state0 + " state1 = " + state1);                if(state0 == ServiceState.STATE_OUT_OF_SERVICE && state1 == ServiceState.STATE_IN_SERVICE)                    slot = Phone.GEMINI_SIM_2;                if(state1 == ServiceState.STATE_OUT_OF_SERVICE && state0 == ServiceState.STATE_IN_SERVICE)                    slot = Phone.GEMINI_SIM_1;            }        } else if(radioOn0) {            slot = Phone.GEMINI_SIM_1;        } else if(radioOn1){            slot = Phone.GEMINI_SIM_2;        }        return slot;    }

以下为飞行模式判断及退出飞行模式：EmergencyCallHelper.java

 /**     * Attempt to power on the radio (i.e. take the device out     * of airplane mode.)     *     * Additionally, start listening for service state changes;     * we'll eventually get an onServiceStateChanged() callback     * when the radio successfully comes up.     */    private void powerOnRadio() {        if (DBG)            log("- powerOnRadio()...");        // We're about to turn on the radio, so arrange to be notified        // when the sequence is complete.        registerForServiceStateChanged();        // If airplane mode is on, we turn it off the same way that the        // Settings activity turns it off.        int dualSimMode = 0;        boolean bOffAirplaneMode = false;        if (FeatureOption.MTK_GEMINI_SUPPORT)            dualSimMode = Settings.System.getInt(mApp.getContentResolver(),                    Settings.System.DUAL_SIM_MODE_SETTING,                    Settings.System.DUAL_SIM_MODE_SETTING_DEFAULT);        if (DBG) Log.d(TAG, "dualSimMode = " + dualSimMode);        if (Settings.System.getInt(mApp.getContentResolver(), Settings.System.AIRPLANE_MODE_ON, 0) > 0) {            if (DBG) log("==> Turning off airplane mode...");            // Change the system setting            Settings.System.putInt(mApp.getContentResolver(), Settings.System.AIRPLANE_MODE_ON, 0);            // Post the intent            Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED);            intent.putExtra("state", false);            mApp.sendBroadcast(intent);            bOffAirplaneMode = true;        } else if (!FeatureOption.MTK_GEMINI_SUPPORT) {            // Otherwise, for some strange reason the radio is off            // (even though the Settings database doesn't think we're            // in airplane mode.) In this case just turn the radio            // back on.            if (DBG) log("==> (Apparently) not in airplane mode; manually powering radio on...");            mPhone.setRadioPower(true);        }        if (FeatureOption.MTK_GEMINI_SUPPORT                && (!bOffAirplaneMode || (bOffAirplaneMode && needSetDualSimMode(dualSimMode)))) {            int mode = getProperDualSimMode();            Settings.System.putInt(mApp.getContentResolver(),                    Settings.System.DUAL_SIM_MODE_SETTING, mode);            final Intent intent = new Intent(Intent.ACTION_DUAL_SIM_MODE_CHANGED);            intent.putExtra(Intent.EXTRA_DUAL_SIM_MODE, mode);            mApp.sendBroadcast(intent);        }    }