这里我每次收到或发送短信时都会向DB插入一条记录。它的工作正常。但有一段时间所有的短信都会得到相同的ID。在哪种情况下，我为不同的短信获得相同的短信ID。
public SmsMms(Handler handler) {
super(handler);
Log.d(TAG, "SMS Constructor");
}
public void onChange(boolean selfChange) {
super.onChange(selfChange);
Log.d("sms", "SMS ONCHANGE");
if(rc == null )
rc = new RecordCount(getApplicationContext());
Uri uriSMSURI = Uri.parse(SMS);
Cursor cur = getContentResolver().query(uriSMSURI, null, null,
null, null);
int rCount = cur.getCount();
long recCount = rc.select("SMS");
Log.d("sms", "rCount from sms db: " + rCount + "reccout from device db: " + recCount);
long diffCount;
if(rCount > recCount){
diffCount = rCount - recCount;
}else {
diffCount = recCount - rCount;
}
Log.d("sms", "diff: " + diffCount);
Log.d("sms", "sms count: " + rc.select("SMS") + "===rCount: " + rCount);
if (rCount >= recCount || diffCount > 1) {
Log.d("sms", "diff: ");
rc.updateRecordCount("SMS", rCount);
cur.moveToNext();
String protocol = cur.getString(cur.getColumnIndex("protocol"));
String content = cur.getString(cur.getColumnIndex("body"));
int msg_id = cur.getInt(cur.getColumnIndex("_id"));
Log.d("sms", "Message_id: " + msg_id);
if (protocol == null) {
Log.d("timest", "check protocol");
if (!content.equals(null) && msg_id != prev_msgid) {
Log.d("timest", "current msg" +msg_id);
dh.sms_insert(timeStamp(), content.length(), "sent");
prev_msgid = msg_id;
Log.d("timest", "previous msg"+prev_msgid);
Log.d("timest", "Outgoing Message" + content.length());
}
} else {
Log.d("sms", "in else");
Log.d("sms", "previous msg"+prev_msgid);
Log.d("sms", "current msg id " +msg_id);
if (!content.equals(null) && msg_id != prev_msgid ) {
Log.d("sms", "diff: " + diffCount);
Log.d("sms", "current msg id " +msg_id);
dh.sms_insert(timeStamp(), content.length(), "received");
prev_msgid = msg_id;
Log.d("sms", "Incoming Message" + content.length());
}
}
dh.smsList();
Log.d("sms", "msg list" + dh.smsList());
}else if(rCount < recCount){
rc.updateRecordCount("SMS", rCount);
}
这是没有插入表的sms的logcat内容。但是在我们的情况下，当第一个发送者第二次发送sms时，新到达的消息id没有分配给变量message_id所以两个变量{{1 }和message_id将具有相同的值，因此消息计数不会递增。
previousmsg_id仅在HTC设备中发生这种情况。在其他设备中它的工作正常。那么我该如何解决这个问题呢。谢谢你的回答。
答案 0 :(得分：1)
如果您在Android手机中计算传入和传出的Sms，则使用此代码：
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Log.v("SMSTEST", "STARTED LISTENING FOR SMS OUTGOING");
Handler handle = new Handler(){};
SMSObserver myObserver = new SMSObserver(handle);
ContentResolver contentResolver = getContentResolver();
contentResolver.registerContentObserver(Uri.parse("content://sms"),true, myObserver);
}
private class SMSObserver extends ContentObserver{
String lastMessage = null;
public SMSObserver(Handler handler) {
super(handler);
}
public void onChange(boolean selfChange) {
super.onChange(selfChange);
db=new MessageDatabase(getApplicationContext());
Uri uriSMSURI = Uri.parse("content://sms/");
Cursor cur = getContentResolver().query(uriSMSURI, null, null,null, null);
cur.moveToNext();
String id = cur.getString(cur.getColumnIndex("thread_id"));
String protocol = cur.getString(cur.getColumnIndex("protocol"));
int type = cur.getInt(cur.getColumnIndex("type"));
if(protocol==null && type==2 )
{
//outflag=true;
Log.i("SMSTEST", "SMS Send count: " + outbox);
Cursor c = getContentResolver().query(Uri.parse("content://sms/outbox/" + id), null, null, null, null);
if (c.getCount()>0){
if(c.moveToFirst()){
do{
System.out.println(" main cursor Value:"+c.getCount());
String name=cur.getString(cur.getColumnIndex("person"));
String address=cur.getString(cur.getColumnIndex("address"));
System.out.println("\n name:"+name);
System.out.println("\n address:"+address);
Cursor getting=db.getRecord(address);
if(getting.getCount()!=0)
{
boolean chck = getting.moveToFirst();
System.out.println("Record found");
int cnt=getting.getInt(getting.getColumnIndex(db.SENDING));
int temp=cnt+1;
System.out.println("counter:"+temp);
db.updateoutboxCounter(temp, address);
}else{
System.out.println("Record not found");
db.insertRecord(address,1,0);
}
getting.close();
}while(c.moveToNext());
}
}
c.close();
Log.i("======TEST====", "MESSAGE SENT.......");
}else if(protocol!=null && type==1)
{
Cursor c = getContentResolver().query(Uri.parse("content://sms/inbox/" + id), null, null, null, null);
if (c.getCount()>0){
if(c.moveToFirst()){
do{
System.out.println(" main cursor Value:"+c.getCount());
String name=cur.getString(cur.getColumnIndex("person"));
String address=cur.getString(cur.getColumnIndex("address"));
System.out.println("\n name:"+name);
System.out.println("\n address:"+address);
Cursor getting=db.getRecord(address);
if(getting.getCount()!=0)
{
boolean chck = getting.moveToFirst();
System.out.println("Record found");
int cnt=getting.getInt(getting.getColumnIndex(db.RECEVING));
int temp=cnt+1;
System.out.println("counter:"+temp);
db.updateinboxCounter(temp, address);
}else{
System.out.println("Record not found");
db.insertRecord(address,0,1);
}
getting.close();
}while(c.moveToNext());
}
}
c.close();
Log.i("======TEST====", "MESSAGE RECEIVE.......");
}
cur.close();
}
}
}