升级到iOS7 / xcode 5后，UIScrollView不会滚动

问题描述

我有一个应用程序，在xcode 4.5和ios 6.1滚动时工作得很好。
然而，在下载xcode 5和iOS 7之后，我的滚动视图不再有用了。???

I have an app which in xcode 4.5 and ios 6.1 worked perfectly fine when scrolling.However, after downloading xcode 5 and iOS 7 my scroll views does not work anymore.???

这是我的.h文件：

#import <UIKit/UIKit.h>

@interface GrillretterViewController : UIViewController
@property (strong, nonatomic) IBOutlet UIScrollView *grillretterScroller;
@property (assign) CGPoint rememberContentOffset;

@end

这是我的.m文件：

#import "GrillretterViewController.h"

@interface GrillretterViewController ()

@end

@implementation GrillretterViewController
@synthesize grillretterScroller, rememberContentOffset;

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    [grillretterScroller setScrollEnabled:YES];

    // Do any additional setup after loading the view.
}

- (void) viewDidAppear:(BOOL)animated {
    [grillretterScroller setContentSize:CGSizeMake(300, 915)];

}

- (void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:YES];
    self.grillretterScroller.contentOffset = CGPointMake(0, 0);
}

- (void)viewWillDisappear:(BOOL)animated {
    self.rememberContentOffset = self.grillretterScroller.contentOffset;
    [super viewWillDisappear:animated];
}

- (void)viewDidLayoutSubviews {
    [super viewDidLayoutSubviews];
    self.grillretterScroller.contentOffset = CGPointMake(0, self.rememberContentOffset.y);
}



- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end

请帮忙！我被困了！

祝你好运！

推荐答案

我解决了这可以通过在Scroll视图的主视图的File Inspector窗格中取消选择'Use Autolayout'来实现。

I solved this by deselecting 'Use Autolayout' in the File Inspector pane of main view within the Scroll View.

如果你想保持'Autolayout'，请尝试'编辑 - >重新启动Autolayout问题 - >添加缺失约束'。关键约束似乎是底部空间：Superview，在我的情况下是-300，在视图的底部有300个滚动空间。

If you want to keep 'Autolayout' enabled, try 'Editor -> Reslove Autolayout Issues -> Add Missing Constraints'. The key constraint appears to be 'Bottom Space to: Superview and in my case was -300, giving 300 scroll space on the botton of the view.

这篇关于升级到iOS7 / xcode 5后，UIScrollView不会滚动的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！