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开发中，难免会遇到各种各样的适配问题，尤其是经过深度修改定制过的系统，有的无论是软硬件上都有很大的区别,这里不得不提到一种奇葩的机型，没错，那就是双卡双待的手机（比如XT800， A60， S8600 ， Lenovo A750，中兴V889D等）.由于是双SIM卡，而且两个卡槽支持的运营商或者网络制式不一定相同,比如一个卡槽支持WCDMA,另一个却只支持GSM,导致用正常方法解析短信很容易遇到异常
想深入了解双卡双待手机短信发送与接收流程的话，请看我之前关于 MMS的分析：
Android 短信模块分析(四) MMS之短信的发送与接收
这里先看下解决方案,这里需要以反射的方式解析不同类型的短信，并且对于不同机型，需对应地进行调整适配:
获取短信信息，注意：为解决双卡双待手机解析短信异常问题，使用Java反射机制，优先解析GSM类型的短信，假如解析失败才按CDMA类型的短信进行解析）
public static SmsMessage[] getSmsMessage(Intent intent) {SmsMessage[] msgs = null;Object messages[] = (Object[]) intent.getSerializableExtra("pdus");int len = 0;if (null != messages && (len = messages.length) > 0) {msgs = new SmsMessage[len];try {for (int i = 0; i < len; i++) {SmsMessage message = null;if ("GSM".equals(intent.getStringExtra("from"))) { // 适配MOTO XT800双卡双待手机message = createFromPduGsm((byte[]) messages[i]);} else if ("CDMA".equals(intent.getStringExtra("from"))) { // 适配MOTO XT800双卡双待手机message = createFromPduCdma((byte[]) messages[i]);} else {message = SmsMessage.createFromPdu((byte[]) messages[i]); // 系统默认的解析短信方式}if (null == message) { // 解决双卡双待类型手机解析短信异常问题message = createFromPduGsm((byte[]) messages[i]);if (null == message) {message = createFromPduCdma((byte[]) messages[i]);}}if (null != message) {msgs[i] = message;}}} catch (Exception e) {e.printStackTrace();msgs = getSmsMessageByReflect(intent); // 解决双卡双待手机解析短信异常问题} catch (Error er) {er.printStackTrace();msgs = getSmsMessageByReflect(intent); // 解决双卡双待手机解析短信异常问题}}return msgs;}
反射方式获取短信
/*** 使用Java反射机制获取短信信息（解决双卡双待手机解析短信异常问题，优先解析GSM类型的短信，假如解析失败才按CDMA类型的短信进行解析）* * @param intent* @return*/private static SmsMessage[] getSmsMessageByReflect(Intent intent) {SmsMessage[] msgs = null;Object messages[] = (Object[]) intent.getSerializableExtra("pdus");int len = 0;if (null != messages && (len = messages.length) > 0) {msgs = new SmsMessage[len];try {for (int i = 0; i < len; i++) {SmsMessage message = createFromPduGsm((byte[]) messages[i]);if (null == message) {message = createFromPduCdma((byte[]) messages[i]);}if (null != message) {msgs[i] = message;}}} catch (SecurityException e) {e.printStackTrace();} catch (IllegalArgumentException e) {e.printStackTrace();} catch (ClassNotFoundException e) {e.printStackTrace();} catch (NoSuchMethodException e) {e.printStackTrace();} catch (IllegalAccessException e) {e.printStackTrace();} catch (InvocationTargetException e) {e.printStackTrace();} catch (InstantiationException e) {e.printStackTrace();}}return msgs;}
通过Java反射机制解析GSM类型的短信:
private static SmsMessage createFromPduGsm(byte[] pdu) throws SecurityException, IllegalArgumentException, ClassNotFoundException, NoSuchMethodException, IllegalAccessException, InvocationTargetException, InstantiationException {return createFromPdu(pdu, "com.android.internal.telephony.gsm.SmsMessage");}
解析CDMA类型的短信
private static SmsMessage createFromPduCdma(byte[] pdu) throws SecurityException, IllegalArgumentException, ClassNotFoundException, NoSuchMethodException, IllegalAccessException, InvocationTargetException, InstantiationException {return createFromPdu(pdu, "com.android.internal.telephony.cdma.SmsMessage");}
解析GSM或者CDMA类型的短信
private static SmsMessage createFromPdu(byte[] pdu, String className) throws ClassNotFoundException, SecurityException, NoSuchMethodException, IllegalArgumentException, IllegalAccessException, InvocationTargetException, InstantiationException {Class<?> clazz = Class.forName(className);Object object = clazz.getMethod("createFromPdu", byte[].class).invoke(clazz.newInstance(), pdu);if (null != object) {Constructor<?> constructor = SmsMessage.class.getDeclaredConstructor(Class.forName("com.android.internal.telephony.SmsMessageBase"));constructor.setAccessible(true);return (SmsMessage) constructor.newInstance(object);} else {return null;}}
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