**
文章已过时，通过现有代码可判断
**
背景：
以前google默认的是单卡的，
双卡双待为国内厂商定制，
所以没有直接的系统API来获取正在联网的是哪张卡；
步骤：
主要分三种情况：
1、Android5.0之前的，目前先放弃
2、在Android5.0后可以通过ISub来获取哪张卡在联网，
通过反射获取对应的IMSI
3、Android7.0后通过SubscriptionManager.getDefaultDataSubscriptionId();获取联网卡槽的信息，再根据反射获取对应的IMSI
主要代码如下：
package com.main.common.utils;
import android.content.Context;
import android.os.Build;
import android.os.IBinder;
import android.os.RemoteException;
import android.telephony.SubscriptionManager;
import android.telephony.TelephonyManager;
import com.android.internal.telephony.ISub;
import com.ylmf.androidclient.DiskApplication;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
/**
* @author zhanshuyong
* @date 2018/5/23
* Description:
* 不管是否为双卡双待，可以获取正在联网的那张卡的IMSI
* https://blog.csdn.net/ymcl_hx/article/details/53484797
* https://blog.csdn.net/linsir007/article/details/51918227
* https://blog.csdn.net/u013686019/article/details/71195230
* https://blog.csdn.net/u012904691/article/details/78032076
* }
*/
public class TelephonyManagerUtil {
/**
* 获取正在联网的那张手机卡 的 imsi值
*
* @return
*/
public static String getIMSI() {
String IMSI = "";
int dataSubId = 0;
try {
Method method;
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.N) {
dataSubId = SubscriptionManager.getDefaultDataSubscriptionId();
} else {
ISub iSub = getISub();
if (iSub != null) {
dataSubId = getISub().getDefaultDataSubId();
}
}
TelephonyManager telephonyManager = (TelephonyManager) DiskApplication.getInstance().getSystemService(Context.TELEPHONY_SERVICE);
Class<?> telephonyClass = telephonyManager.getClass();
//如果是5.0的反射long型
if (Build.VERSION.SDK_INT == Build.VERSION_CODES.LOLLIPOP) {
method = telephonyClass.getMethod("getSubscriberId", long.class);
} else {
//5.0以后用int
method = telephonyClass.getMethod("getSubscriberId", int.class);
}
IMSI = method.invoke(telephonyManager, dataSubId).toString();
} catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException | RemoteException e) {
e.printStackTrace();
}
Logger.azhansy("getSubId= " + dataSubId + " IMSI=" + IMSI);
return IMSI;
}
/**
* 5.0以后 android就加了这个
*
* @return
*/
private static ISub getISub() {
try {
return ISub.Stub.asInterface((IBinder) Class.forName("android.os.ServiceManager").getMethod("getService", String.class).invoke(null, "isub"));
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
}
Android5.0后通过iSub.aidl：
注意包名、反射的使用：
/*
* Copyright (C) 2014 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.
* https://github.com/aosp-mirror/platform_frameworks_base/blob/4b1a8f46d6ec55796bf77fd8921a5a242a219278/telephony/java/com/android/internal/telephony/ISubscriptionListener.aidl
*/
package com.android.internal.telephony;
import android.app.PendingIntent;
import android.telephony.SubscriptionInfo;
import com.android.internal.telephony.ISubscriptionListener;
interface ISub {
/**
* @param callingPackage The package maing the call.
* @return a list of all subscriptions in the database, this includes
* all subscriptions that have been seen.
*/
List<SubscriptionInfo> getAllSubInfoList(String callingPackage);
/**
* @param callingPackage The package maing the call.
* @return the count of all subscriptions in the database, this includes
* all subscriptions that have been seen.
*/
int getAllSubInfoCount(String callingPackage);
/**
* Get the active SubscriptionInfo with the subId key
* @param subId The unique SubscriptionInfo key in database
* @param callingPackage The package maing the call.
* @return SubscriptionInfo, maybe null if its not active
*/
SubscriptionInfo getActiveSubscriptionInfo(int subId, String callingPackage);
/**
* Get the active SubscriptionInfo associated with the iccId
* @param iccId the IccId of SIM card
* @param callingPackage The package maing the call.
* @return SubscriptionInfo, maybe null if its not active
*/
SubscriptionInfo getActiveSubscriptionInfoForIccId(String iccId, String callingPackage);
/**
* Get the active SubscriptionInfo associated with the slotIdx
* @param slotIdx the slot which the subscription is inserted
* @param callingPackage The package maing the call.
* @return SubscriptionInfo, maybe null if its not active
*/
SubscriptionInfo getActiveSubscriptionInfoForSimSlotIndex(int slotIdx, String callingPackage);
/**
* Get the SubscriptionInfo(s) of the active subscriptions. The records will be sorted
* by {@link SubscriptionInfo#getSimSlotIndex} then by {@link SubscriptionInfo#getSubscriptionId}.
*
* @param callingPackage The package maing the call.
* @return Sorted list of the currently {@link SubscriptionInfo} records available on the device.
* <ul>
* <li>
* If null is returned the current state is unknown but if a {@link OnSubscriptionsChangedListener}
* has been registered {@link OnSubscriptionsChangedListener#onSubscriptionsChanged} will be
* invoked in the future.
* </li>
* <li>
* If the list is empty then there are no {@link SubscriptionInfo} records currently available.
* </li>
* <li>
* if the list is non-empty the list is sorted by {@link SubscriptionInfo#getSimSlotIndex}
* then by {@link SubscriptionInfo#getSubscriptionId}.
* </li>
* </ul>
*/
List<SubscriptionInfo> getActiveSubscriptionInfoList(String callingPackage);
/**
* @param callingPackage The package making the call.
* @return the number of active subscriptions
*/
int getActiveSubInfoCount(String callingPackage);
/**
* @return the maximum number of subscriptions this device will support at any one time.
*/
int getActiveSubInfoCountMax();
/**
* Add a new SubscriptionInfo to subinfo database if needed
* @param iccId the IccId of the SIM card
* @param slotId the slot which the SIM is inserted
* @return the URL of the newly created row or the updated row
*/
int addSubInfoRecord(String iccId, int slotId);
/**
* Set SIM icon tint color by simInfo index
* @param tint the icon tint color of the SIM
* @param subId the unique SubscriptionInfo index in database
* @return the number of records updated
*/
int setIconTint(int tint, int subId);
/**
* Set display name by simInfo index
* @param displayName the display name of SIM card
* @param subId the unique SubscriptionInfo index in database
* @return the number of records updated
*/
int setDisplayName(String displayName, int subId);
/**
* Set Sim Provisioning Status by subscription ID
* @param simProvisionStatus with the subscription:
* {@See SubscriptionManager#SIM_PROVISIONED}
* {@See SubscriptionManager#SIM_UNPROVISIONED_COLD}
* {@See SubscriptionManager#SIM_UNPROVISIONED_OUT_OF_CREDIT}
* @param subId the unique SubInfoRecord index in database
* @return the number of records updated
*/
int setSimProvisioningStatus(int simProvisioningStatus, int subId);
/**
* Set display name by simInfo index with name source
* @param displayName the display name of SIM card
* @param subId the unique SubscriptionInfo index in database
* @param nameSource, 0: DEFAULT_SOURCE, 1: SIM_SOURCE, 2: USER_INPUT
* @return the number of records updated
*/
int setDisplayNameUsingSrc(String displayName, int subId, long nameSource);
/**
* Set phone number by subId
* @param number the phone number of the SIM
* @param subId the unique SubscriptionInfo index in database
* @return the number of records updated
*/
int setDisplayNumber(String number, int subId);
/**
* Set data roaming by simInfo index
* @param roaming 0:Don't allow data when roaming, 1:Allow data when roaming
* @param subId the unique SubscriptionInfo index in database
* @return the number of records updated
*/
int setDataRoaming(int roaming, int subId);
int getSlotId(int subId);
int[] getSubId(int slotId);
int getDefaultSubId();
int clearSubInfo();
int getPhoneId(int subId);
/**
* Get the default data subscription
* @return Id of the data subscription
*/
int getDefaultDataSubId();
void setDefaultDataSubId(int subId);
int getDefaultVoiceSubId();
void setDefaultVoiceSubId(int subId);
int getDefaultSmsSubId();
void setDefaultSmsSubId(int subId);
void clearDefaultsForInactiveSubIds();
int[] getActiveSubIdList();
void setSubscriptionProperty(int subId, String propKey, String propValue);
String getSubscriptionProperty(int subId, String propKey, String callingPackage);
/**
* Get the SIM state for the slot idx
* @return SIM state as the ordinal of IccCardConstants.State
*/
int getSimStateForSlotIdx(int slotIdx);
boolean isActiveSubId(int subId);
}/*
* Copyright (C) 2014 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.telephony.SubscriptionInfo;
oneway interface ISubscriptionListener {
void onSubscriptionInfoChanged();
}参考：
https://blog.csdn.net/ymcl_hx/article/details/53484797
https://blog.csdn.net/linsir007/article/details/51918227
https://blog.csdn.net/u013686019/article/details/71195230
https://blog.csdn.net/u012904691/article/details/78032076