Automatically synchronize after a certain interval. The interval time can be set in `Settings`-`Synchronization`-`Automatic synchronization`-`Sync interval`. The Android system has a sleep mechanism, so it does not synchronize automatically as soon as the interval expires. There is usually a delay.
The button has two display locations: the `Sync` button in the upper right corner of the sidebar or the `Sync` menu in the list page menu. The latter needs to be turned off in `Settings`-`Interface`-`Side Nav` to be displayed.
In `Settings`-`Sync`-enable `Show synchronization method`, after clicking the synchronization button, the synchronization option box will be displayed, and you can select the items that need to be synchronized this time.
Compared with the previous three synchronization ways, which will synchronize all feeds, the `quick manual synchronization` will synchronize specific content based on the current display list. for example,
- When the list is `all items`, all feeds will be synchronized.
- When the list is `starred items`, only starred articles will be synchronized.
- When the list is a `category`, articles from all feeds under this category will be synchronized.
- When the list is a single `feed`, only the articles from this feed will be synchronized.
The number of unread items to synchronize is set in `Settings`-`Cache`-`Reading List`. If 500 are set, and the number of unread items on the server side is greater than 500, the latest 500 will be downloaded for each synchronization. If it is less than 500, download all of them.
When there are already 500 unread items, synchronize again and there are 10 new unread items on the server. Then the 10 oldest unread items in FeedMe will be marked as read locally in FeedMe, but will not be synchronized to the server. .
