possible workaround for issue in haiwen#423

the problem seems to be that the first full sync works. But after that
subsequent incrementals fail.

So, to verify, disable incrementals and always query the MediaStore for
all images. (There is still the "file already exists?"-check. So it shouldn't
cause multiple uploads on the server).

src/com/seafile/seadroid2/cameraupload/CameraSyncAdapter.java

@@ -264,27 +264,25 @@ private void uploadImages(SyncResult syncResult, DataManager dataManager) throws
             return;
 
         // we only want media added since the last complete sync
-        String selection = MediaStore.Images.ImageColumns.DATE_ADDED + " > ?";
+        String selection = "";
         String[] selectionArgs;
 
         if (bucketList.size() > 0) {
             // also we only want media in one of the selected buckets...
-            selectionArgs = new String[bucketList.size() + 1];
-            selectionArgs[0] = Long.toString(settingsMgr.getCameraUploadSyncStampImage());
+            selectionArgs = new String[bucketList.size()];
 
             String questionmarkList = "";
             for (int i = 0; i < bucketList.size(); i++) {
-                selectionArgs[i + 1] = bucketList.get(i);
+                selectionArgs[i] = bucketList.get(i);
                 questionmarkList += "?,";
             }
             questionmarkList = questionmarkList.substring(0, questionmarkList.length() - 1); // remove last ","
-            selection += " AND " + MediaStore.Images.ImageColumns.BUCKET_ID + " IN (" + questionmarkList + ")";
+            selection += MediaStore.Images.ImageColumns.BUCKET_ID + " IN (" + questionmarkList + ")";
         } else {
             // ...or only from the Camera bucket
-            selectionArgs = new String[2];
-            selectionArgs[0] = Long.toString(settingsMgr.getCameraUploadSyncStampImage());
-            selectionArgs[1] = CAMERA_BUCKET_NAME;
-            selection += " AND " + MediaStore.Images.Media.BUCKET_DISPLAY_NAME + " = ?";
+            selectionArgs = new String[1];
+            selectionArgs[0] = CAMERA_BUCKET_NAME;
+            selection += MediaStore.Images.Media.BUCKET_DISPLAY_NAME + " = ?";
         }
 
         // fetch all new images from the ContentProvider since our last sync
@@ -330,27 +328,25 @@ private void uploadVideos(SyncResult syncResult, DataManager dataManager) throws
 
 
         // we only want media added since the last complete sync
-        String selection = MediaStore.Video.VideoColumns.DATE_ADDED + " > ?";
+        String selection = "";
         String[] selectionArgs;
 
         if (bucketList.size() > 0) {
             // also we only want media in one of the selected buckets...
-            selectionArgs = new String[bucketList.size() + 1];
-            selectionArgs[0] = Long.toString(settingsMgr.getCameraUploadSyncStampVideo());
+            selectionArgs = new String[bucketList.size()];
 
             String questionmarkList = "";
             for (int i = 0; i < bucketList.size(); i++) {
-                selectionArgs[i + 1] = bucketList.get(i);
+                selectionArgs[i] = bucketList.get(i);
                 questionmarkList += "?,";
             }
             questionmarkList = questionmarkList.substring(0, questionmarkList.length() - 1); // remove last ","
-            selection += " AND " + MediaStore.Video.VideoColumns.BUCKET_ID + " IN (" + questionmarkList + ")";
+            selection += MediaStore.Video.VideoColumns.BUCKET_ID + " IN (" + questionmarkList + ")";
         } else {
             // ...or only from the Camera bucket
-            selectionArgs = new String[2];
-            selectionArgs[0] = Long.toString(settingsMgr.getCameraUploadSyncStampVideo());
-            selectionArgs[1] = CAMERA_BUCKET_NAME;
-            selection += " AND " + MediaStore.Video.Media.BUCKET_DISPLAY_NAME + " = ?";
+            selectionArgs = new String[1];
+            selectionArgs[0] = CAMERA_BUCKET_NAME;
+            selection += MediaStore.Video.Media.BUCKET_DISPLAY_NAME + " = ?";
         }
 
         // fetch all new videos from the ContentProvider since our last sync