There are two types of UI design patterns: paging mode and drop-down refresh mode .
One, paging mode
Depending on the triggering method, requests are divided into active requests and passive requests .
Unsolicited request: When the condition is met, the next batch of data is requested again, is emitted automatically, and generally in the table view of the table foot out of the activity indicator, the activity indicator will be hidden after the request is over.
Passive request: When the condition is met, a control that responds to the Click event is displayed in the table's foot of the table view. This control is usually a button, and the button label is usually set to "more". When the "more" button is clicked, the app requests the server, and after the request is over, the "more" button is hidden.
The difference between the two, such as:
Second, drop-down refresh mode
Drop-down refresh and paging instead, when you flip the screen to the top, and then pull the screen down, the program starts to re-request the data, and the Table View header section appears with the activity indicator, and the table header disappears after the request ends, such as:
The difference between IOS6 and IOS7, such as:
Reference Source:
7.RefreshTableList
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IOS UI design Mode-Paging