无法将UITableView滚动到底部

Question

EDIT
This is what happens, so you can see: http://youtu.be/v1HrxYhzJZY .

This is my scenario:
I have a UITableView with 5 sections and 12 cells. This view is opened with a push segue and everything works fine, it scrolls, etc.

Three of those cells open a MKMapView view (through a push segue ) another pops up a MFMailComposeViewController .

When I try to go back to my UITableView I'm no longer able to scroll to the bottom. I can only scroll a bit and then it returns to the top of my tableview.

I tried to set the frame size on viewWillAppear , I tried to reload the tableView but it doesn't work!
What could cause this issue?

EDIT
My implementation are:

- (void)viewDidLoad {
    loaded = NO;

    NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"my_url", self.userID]];
    NSURLRequest *request = [NSURLRequest requestWithURL:url];
    AFJSONRequestOperation *operation = [AFJSONRequestOperation JSONRequestOperationWithRequest:request success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) {
        loaded = YES;

        self.user = JSON;
        [self setUserValues];

        [self.tableView reloadData];

    } failure:nil];

    [operation start];

    [super viewDidLoad];
}

- (void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];

    [self.tableView setContentSize:CGSizeMake(320, 420)];
}

Answer 1

I solved that issue by myself with this simple code:

- (void)viewDidAppear:(BOOL)animated {
    [super viewDidAppear:animated];

    [self.tableView reloadData];
}

Thanks anyway!

Answer 2

The viewWillAppear: method is too early to scroll the table view. The view hasn't been added to the on-screen view hierarchy and laid out yet. Try doing it in viewDidLayoutSubviews .

Answer 3

使用以下代码将tableView滚动到所需的部分/行：

[tableView scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:desiredRow inSection:desiredSection] atScrollPosition:UITableViewScrollPositionTop animated:NO];

Answer 4

To scroll the tableView, which inherits from UIScrollView , you need to use [self.tableView setContentOffset:CGPointMake(0,100) animated:YES]; and not the setContentSize

Answer 5

I experienced this too. Coming back from the child view, the table view was no longer scrollable (it would always bounce to the top). My child view doesn't have a map view like yours.

Reloading the table view didn't fix it for me.

The bug only showed in iOS 7, not 6.1.

I was accessing topLayoutGuide ... removing that access (just a property read!) fixed the issue. WTF! Must be a magic property.

Answer 6

I also met this problem yesterday! And I have fixed it just now!

I dragged a UITableView to the UIViewController and simply chose add missing contraints . When I ran the app, the UITableView could not scroll to bottom.

I googled it and saw a similar question in Stackoverflow .

Then I checked the contraints for the UITableView, I found there was a contraint setted the fixed height for the UITableView. Then I removed the contraint and added another one: Bottom Space to: Bottom Layout Guide = 0 .

The solution works for me.