如有转载,请声明出处: 时之沙:http://blog.csdn.net/t12x3456
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");
}
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;
}
}