ListView Pull-up Load previous page drop-down load next page common processing

Don't say anything first, on:

The first page is displayed by default:

Pull-up loads the next page:

Pull to a certain height:

To release the load:

Drop-down loading previous page:

Drop down to a certain height:

To release the load:

Code has been uploaded: http://download.csdn.net/detail/zengchao2013/8837971

Common headers and footer can be used directly.

Three parameters to pass in: whether it is the first page, whether it is the last page, the current number of pages

UI display for header and footer, first page header hidden, last page footer hidden.

ListView Pull-up Load previous page drop-down load next page common processing