问题
I have a UITableViewController with around 20 static cells, some of these cells have UITextFields within them and some are just for selecting with a checkmark. The table is about 1.5 views worth so scrolling is required to get at the lower text fields.
When I click within a textfield at the bottom of the table the keyboard pops up as it should but this then appears over the cell/textfield.
I was under the impression (From Apple docs and elsewhere) that the UITableViewController class handles scrolling of the view automatically when a keyboard appears in any orientation and shifts the tableview up so that the cell is visible, this isn't happening though.
IOS 5.1, iPad Portrait.
回答1:
Make sure that if you are overriding viewWillAppear that you call
[super viewWillAppear:animated];
If you don't, the Scroll View will not scroll up properly.
Swift
super.viewWillAppear(animated)
回答2:
I found non of these answers to be correct. After a while, I notice that if you push a controller it won't work ... but if you present it modally.. the table will automatically scroll to the used textfield.
Hope that saves time and stress to anyone.
回答3:
I ran into this issue myself. I just converted my view controller from a UIViewController to a UITableViewController in addition to adding the [super viewWillAppear:animated]; call, you will need to remove these lines:
[self.tableView setDataSource:self];
[self.tableView setDelegate:self];
As they are no longer needed and setDelegate interferes with the keyboard scrolling behavior.
来源：https://stackoverflow.com/questions/11243712/uitableviewcontroller-not-scrolling-view-when-keyboard-appears