4
我需要得到的thread_id
MMS短信/通話的Android內容提供商的thread_id,這是我迄今所做的:獲取短信/彩信的電話號碼
public long findThreadIdFromPhoneNumber(Context context, PhoneNumber phoneNumber) {
Uri.Builder uriBuilder = Uri.withAppendedPath(Uri.parse(CONTENT_SMSMMS+"/"), "threadID").buildUpon();
// phoneNumber.msisdn() return the String phone number
uriBuilder.appendQueryParameter("recipient", phoneNumber.msisdn());
long threadId = -1L;
Cursor cursor = null;
try {
cursor = context.getContentResolver().query(
uriBuilder.build(),
new String[] { Contacts._ID },
null, null, null);
if (cursor != null && cursor.moveToFirst()) {
threadId = cursor.getLong(0);
}
} finally {
if (cursor != null) {
cursor.close();
}
}
return threadId;
}
的問題是,此代碼在內容提供者中創建新線程,並且我不需要這些,如果對話存在,我只需要返回thread_id
,如果不存在則返回-1。
我也試過這個代碼:
public long findThreadIdFromPhoneNumber(Context context, PhoneNumber phoneNumber) {
long threadId = -1L;
Cursor cursor = null;
try {
if (context==null || context.getContentResolver()==null || phoneNumber==null || phoneNumber.msisdn()==null)
return threadId;
cursor = context.getContentResolver().query(
Uri.parse(CONTENT_SMSMMS_CONVERSATIONS),
// phoneNumber.msisdn() return the String phone number
null, "address='"+phoneNumber.msisdn()+"' ",
null, null
);
if (cursor != null && cursor.moveToFirst()) {
if (cursor.getColumnIndex("thread_id")>=0)
threadId = cursor.getLong(cursor.getColumnIndex("thread_id"));
}
} catch (Exception e) {
e.printStackTrace();
String number = (phoneNumber!=null && phoneNumber.msisdn()!=null) ? phoneNumber.msisdn() : "";
Logcat.e("Error during findThreadIdFromPhoneNumber for "+number+": "+e.getMessage(), e);
return threadId;
} finally {
if (cursor != null) {
cursor.close();
}
}
return threadId;
}
但這個代碼給我一個外部NullPointerException
在某些手機上ContentResolver
,和它的作品在其他:
java.lang.NullPointerException
at android.os.Parcel.readException(Parcel.java:1437)
at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:185)
at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:137)
at android.content.ContentProviderProxy.query(ContentProviderNative.java:385)
at android.content.ContentResolver.query(ContentResolver.java:417)
at android.content.ContentResolver.query(ContentResolver.java:360)
at com.mypackage.android.sms.SmsMmsManager.findThreadIdFromPhoneNumber(SmsMmsManager.java:115)