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在src下先建立包名為com.android.internal.telephony(右鍵src > new > package，create package-info.java打鉤)，然后右鍵剛建的com.android.internal.telephony(右鍵com.android.internal.telephony > new > File，文件名為ITelephony.aidl)

ITelephony.aidl 內(nèi)容：

/*
* Copyright (C) 2007 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

package com.android.internal.telephony;

import android.os.Bundle;
import java.util.List;
import android.telephony.NeighboringCellInfo;

/**
* Interface used to interact with the phone. Mostly this is used by the
* TelephonyManager class. A few places are still using this directly.
* Please clean them up if possible and use TelephonyManager insteadl.
*
* {@hide}
*/
interface ITelephony {

/**
* Dial a number. This doesn't place the call. It displays
* the Dialer screen.
* @param number the number to be dialed. If null, this
* would display the Dialer screen with no number pre-filled.
*/
void dial(String number);

/**
* Place a call to the specified number.
* @param number the number to be called.
*/
void call(String number);

/**
* If there is currently a call in progress, show the call screen.
* The DTMF dialpad may or may not be visible initially, depending on
* whether it was up when the user last exited the InCallScreen.
*
* @return true if the call screen was shown.
*/
boolean showCallScreen();

/**
* Variation of showCallScreen() that also specifies whether the
* DTMF dialpad should be initially visible when the InCallScreen
* comes up.
*
* @param showDialpad if true, make the dialpad visible initially,
* otherwise hide the dialpad initially.
* @return true if the call screen was shown.
*
* @see showCallScreen
*/
boolean showCallScreenWithDialpad(boolean showDialpad);

/**
* End call or go to the Home screen
*
* @return whether it hung up
*/
boolean endCall();

/**
* Answer the currently-ringing call.
*
* If there's already a current active call, that call will be
* automatically put on hold. If both lines are currently in use, the
* current active call will be ended.
*
* TODO: provide a flag to let the caller specify what policy to use
* if both lines are in use. (The current behavior is hardwired to
* "answer incoming, end ongoing", which is how the CALL button
* is specced to behave.)
*
* TODO: this should be a oneway call (especially since it's called
* directly from the key queue thread).
*/
void answerRingingCall();

/**
* Silence the ringer if an incoming call is currently ringing.
* (If vibrating, stop the vibrator also.)
*
* It's safe to call this if the ringer has already been silenced, or
* even if there's no incoming call. (If so, this method will do nothing.)
*
* TODO: this should be a oneway call too (see above).
* (Actually *all* the methods here that return void can
* probably be oneway.)
*/
void silenceRinger();

/**
* Check if we are in either an active or holding call
* @return true if the phone state is OFFHOOK.
*/
boolean isOffhook();

/**
* Check if an incoming phone call is ringing or call waiting.
* @return true if the phone state is RINGING.
*/
boolean isRinging();

/**
* Check if the phone is idle.
* @return true if the phone state is IDLE.
*/
boolean isIdle();

/**
* Check to see if the radio is on or not.
* @return returns true if the radio is on.
*/
boolean isRadioOn();

/**
* Check if the SIM pin lock is enabled.
* @return true if the SIM pin lock is enabled.
*/
boolean isSimPinEnabled();

/**
* Cancels the missed calls notification.
*/
void cancelMissedCallsNotification();

/**
* Supply a pin to unlock the SIM. Blocks until a result is determined.
* @param pin The pin to check.
* @return whether the operation was a success.
*/
boolean supplyPin(String pin);

/**
* Handles PIN MMI commands (PIN/PIN2/PUK/PUK2), which are initiated
* without SEND (so <code>dial</code> is not appropriate).
*
* @param dialString the MMI command to be executed.
* @return true if MMI command is executed.
*/
boolean handlePinMmi(String dialString);

/**
* Toggles the radio on or off.
*/
void toggleRadioOnOff();

/**
* Set the radio to on or off
*/
boolean setRadio(boolean turnOn);

/**
* Request to update location information in service state
*/
void updateServiceLocation();

/**
* Enable location update notifications.
*/
void enableLocationUpdates();

/**
* Disable location update notifications.
*/
void disableLocationUpdates();

/**
* Enable a specific APN type.
*/
int enableApnType(String type);

/**
* Disable a specific APN type.
*/
int disableApnType(String type);

/**
* Allow mobile data connections.
*/
boolean enableDataConnectivity();

/**
* Disallow mobile data connections.
*/
boolean disableDataConnectivity();

/**
* Report whether data connectivity is possible.
*/
boolean isDataConnectivityPossible();

Bundle getCellLocation();

/**
* Returns the neighboring cell information of the device.
*/
List<NeighboringCellInfo> getNeighboringCellInfo();

int getCallState();
int getDataActivity();
int getDataState();
}