android中双卡双待的那些代码

这阵子忙着整理项目了，所以就没怎么出新的文章了，不过下面写的这篇文章对大家很有帮助。关于双卡双待的信息获取，包含了imei、phonenumber、operatorName(sim卡生产商，国内就主要指三大运营商了)、NetworkType(这里就主要是4G、3G等了)。

前言:

睡着国内的双卡手机出现，导致获取双卡的信息也是成了一个头痛的事了。google给开发者暴露的api还是停留在单卡上，所以在这里我就整理出相关的代码，让更多的猿友少走弯路。

首先从phonenumber的获取着手吧，顺便带着大家一起去看下相关的源码，以前获取phonenumber我是这么获取的：

((TelephonyManager) ctx.getSystemService(Context.TELEPHONY_SERVICE))                    .getLine1Number();

这里就调用了TelephonyManager的getLine1Number方法，这里顺道去源码看看getLine1Number是怎么获取的：

/**     * Returns the phone number string for line 1, for example, the MSISDN     * for a GSM phone. Return null if it is unavailable.     * <p>     * Requires Permission:     *   {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}     *   OR     *   {@link android.Manifest.permission#READ_SMS}     * <p>     * The default SMS app can also use this.     */    public String getLine1Number() {        return getLine1Number(getSubId());    }

注:我这里源码都是android-25下面的，刚看了下android-23下面的源码是这么调用的：

/**     * Returns the phone number string for line 1, for example, the MSISDN     * for a GSM phone. Return null if it is unavailable.     * <p>     * Requires Permission:     *   {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}     *   OR     *   {@link android.Manifest.permission#READ_SMS}     * <p>     * The default SMS app can also use this.     */    public String getLine1Number() {        return getLine1NumberForSubscriber(getDefaultSubscription());    }

还是有些区别的，起码方法的调用是不一样的，所以建议你在看该篇文章的时候还是把compileSdk升到25：
compileSdkVersion 25
可以看到25的api是继续调了:getLine1Number(getSubId())该方法，那就继续往下走吧:

/**     * Returns the phone number string for line 1, for example, the MSISDN     * for a GSM phone for a particular subscription. Return null if it is unavailable.     * <p>     * Requires Permission:     *   {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}     *   OR     *   {@link android.Manifest.permission#READ_SMS}     * <p>     * The default SMS app can also use this.     *     * @param subId whose phone number for line 1 is returned     * @hide     */    public String getLine1Number(int subId) {        String number = null;        try {            ITelephony telephony = getITelephony();            if (telephony != null)                number = telephony.getLine1NumberForDisplay(subId, mContext.getOpPackageName());        } catch (RemoteException ex) {        } catch (NullPointerException ex) {        }        if (number != null) {            return number;        }        try {            IPhoneSubInfo info = getSubscriberInfo();            if (info == null)                return null;            return info.getLine1NumberForSubscriber(subId, mContext.getOpPackageName());        } catch (RemoteException ex) {            return null;        } catch (NullPointerException ex) {            // This could happen before phone restarts due to crashing            return null;        }    }

看到这的时候真的是心灰意冷啊，为什么这么说，该方法竟然是hide类型的方法，对于这种方法咋们就用到反射了，后面会详细介绍的，看看它的参数是如何解释的：
@param subId whose phone number for line 1 is returned反正我是英语不好的哈，接着我就去查了查相关的说法，这里去看看这篇文章是如何解释的(subid指的是什么)，简单来说subbed指的就是sim卡的索引了，当有一个sim卡的时候subid=1，有两个的时候subid=2。依次类推就可以知道有几个卡subid就是多少了。不过这里的subid还是可以通过反射来获取subid，后面也会讲到如何获取我们的subbed:

private static final String SIM_LINE_NUMBER = "getLine1Number";private static final String SIM_STATE = "getSimState";public static String getSimPhonenumber(Context context, int slotIdx) {    if (PermissionUtil.hasSelfPermission(context, Manifest.permission.READ_PHONE_STATE) ||            PermissionUtil.hasSelfPermission(context, "android.permission.READ_PRIVILEGED_PHONE_STATE")) {        Log.d(TAG, "READ_PHONE_STATE permission has BEEN granted to getSimPhonenumber().");        if (getSimStateBySlotIdx(context, slotIdx)) {            return (String) getSimByMethod(context, SIM_LINE_NUMBER, getSubidBySlotId(context, slotIdx));        }        return null;    } else {        Log.d(TAG, "READ_PHONE_STATE permission has NOT been granted to getSimPhonenumber().");        return null;    }}/** *获取相应卡的状态 * @param slotIdx:0(sim1),1(sim2) * @return true:使用中；false:未使用中 */public static boolean getSimStateBySlotIdx(Context context, int slotIdx) {    boolean isReady = false;    Object getSimState = getSimByMethod(context, SIM_STATE, slotIdx);    if (getSimState != null) {        int simState = Integer.parseInt(getSimState.toString());        if ((simState != TelephonyManager.SIM_STATE_ABSENT) && (simState != TelephonyManager.SIM_STATE_UNKNOWN)) {            isReady = true;        }    }    return isReady;}/** * 通过slotid获取相应卡的subid * @param context * @param slotId * @return */public static int getSubidBySlotId(Context context, int slotId) {    SubscriptionManager subscriptionManager = (SubscriptionManager) context.getSystemService(            Context.TELEPHONY_SUBSCRIPTION_SERVICE);    try {        Class<?> telephonyClass = Class.forName(subscriptionManager.getClass().getName());        Class<?>[] parameter = new Class[1];        parameter[0] = int.class;        Method getSimState = telephonyClass.getMethod("getSubId", parameter);        Object[] obParameter = new Object[1];        obParameter[0] = slotId;        Object ob_phone = getSimState.invoke(subscriptionManager, obParameter);        if (ob_phone != null) {            Log.d(TAG, "slotId:" + slotId + ";" + ((int[]) ob_phone)[0]);            return ((int[]) ob_phone)[0];        }    } catch (Exception e) {        e.printStackTrace();    }    return -1;}/***通过反射调用相应的方法**/public static Object getSimByMethod(Context context, String method, int param) {    TelephonyManager telephony = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);    try {        Class<?> telephonyClass = Class.forName(telephony.getClass().getName());        Class<?>[] parameter = new Class[1];        parameter[0] = int.class;        Method getSimState = telephonyClass.getMethod(method, parameter);        Object[] obParameter = new Object[1];        obParameter[0] = param;        Object ob_phone = getSimState.invoke(telephony, obParameter);        if (ob_phone != null) {            return ob_phone;        }    } catch (Exception e) {        e.printStackTrace();    }    return null;}

可以看到getSimPhonenumber方法需要slotIdx参数，这里还是去这篇文章看看slotldx是咋回事(slotldx到底是啥玩意)，通过了解后，slotldx指的是那个卡槽了，如果当前要获取卡1，slotldx=0；如果是卡2，slotldx=1；到此知道为啥getSimPhonenumber方法需要定义这么个参数了吧。至于说getSimState方法，还是一样通过反射去获取每个卡的状态的，这里就不赘述源码了。上面可以看到获取subId的代码了吧，就是getSubidBySlotId方法了，这里通过反射调用了SubscriptionManager类中的getSubId方法，需要的参数也是我们的slotId。源码如下:

/** @hide */public static int[] getSubId(int slotId) {    if (!isValidSlotId(slotId)) {        logd("[getSubId]- fail");        return null;    }    int[] subId = null;    try {        ISub iSub = ISub.Stub.asInterface(ServiceManager.getService("isub"));        if (iSub != null) {            subId = iSub.getSubId(slotId);        }    } catch (RemoteException ex) {        // ignore it    }    return subId;}

还有imei、operatorName、NetworkType都可以通过相应的方法获取了：

private static final String SIM_OPERATOR_NAME = "getNetworkOperatorName";private static final String SIM_NETWORK_TYPE = "getNetworkType";private static final String SIM_IMEI = "getImei";//获取相应卡的imeipublic static String getSimImei(Context context, int slotIdx) {    if (PermissionUtil.hasSelfPermission(context, Manifest.permission.READ_PHONE_STATE) ||            PermissionUtil.hasSelfPermission(context, "android.permission.READ_PRIVILEGED_PHONE_STATE")) {        Log.d(TAG, "READ_PHONE_STATE permission has BEEN granted to getSimImei().");        if (getSimStateBySlotIdx(context, slotIdx)) {            //sim1            if (slotIdx == 0) {                //这里的参数传的是slotldx                return (String) getSimByMethod(context, SIM_IMEI, 0);            } else if (slotIdx == 1) {                return (String) getSimByMethod(context, SIM_IMEI, 1);            }        }        return null;    } else {        Log.d(TAG, "READ_PHONE_STATE permission has NOT been granted to getSimImei().");        return null;    }}public static String getSimNetworkName(Context context, int slotIdx) {    if (getSimStateBySlotIdx(context, slotIdx)) {        return getNetworkName((int)                getSimByMethod(context, SIM_NETWORK_TYPE, getSubidBySlotId(context, slotIdx)));    }    return "UNKNOWN";}public static String getSimOperatorName(Context context, int slotIdx) {    if (getSimStateBySlotIdx(context, slotIdx)) {        return (String) getSimByMethod(context, SIM_OPERATOR_NAME, getSubidBySlotId(context, slotIdx));    }    return null;}

到此相关的属性获取基本ok了，大家如果还需要获取什么属性，直接去TelephonyManager查看相关的源码。还有一个就是插卡和拔卡的监听、网络变化的监听：

//网络变化的监听public class SimConnectReceive extends BroadcastReceiver {    private static final String TAG = SimConnectReceive.class.getSimpleName();    public final static String ACTION_SIM_STATE_CHANGED = ConnectivityManager.CONNECTIVITY_ACTION;    @Override    public void onReceive(Context context, Intent intent) {        if (intent.getAction().equals(ACTION_SIM_STATE_CHANGED)) {            Log.d(TAG, "onReceive");            EventBus.getDefault().post(new SimConnectChange());        }    }}//插卡和拔卡的监听public class SimStateReceive extends BroadcastReceiver {    private static final String TAG = SimStateReceive.class.getSimpleName();    public final static String ACTION_SIM_STATE_CHANGED = "android.intent.action.SIM_STATE_CHANGED";    @Override    public void onReceive(Context context, Intent intent) {        if (intent.getAction().equals(ACTION_SIM_STATE_CHANGED)) {            Log.d(TAG, "onReceive");            EventBus.getDefault().post(new SimStateChange());        }    }}

还有就是不要忘了manifest中权限:
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

对于6.0的动态权限处理也是添加该权限的判断。

最后贴上该功能的代码：
github传送门
thanks:DualSIMCard
有什么问题可以email我:[e-mail]