Question

我有一个UIWebView，我用HTML代码填写。我将背景图像设置为UIWebView。我还设置了NO alwaysBounceVertical UIScrollView，但它继续反弹。

为什么？

我的代码：

NSMutableString *properTicketText = [NSMutableString string];
[properTicketText appendString:@"<!DOCTYPE html> \n"];
[properTicketText appendString:@"<html> \n"];
[properTicketText appendString:@"<head> \n"];
[properTicketText appendString:@"<style> \n"];
[properTicketText appendString:@"#my { \n"];
[properTicketText appendString:@"width: 280px; \n"];
[properTicketText appendString:@"   padding-left: 20px; \n"];
[properTicketText appendString:@"   padding-right: 0px; \n"];
[properTicketText appendString:@"} \n"];
[properTicketText appendString:@"</style> \n"];
[properTicketText appendString:@"</head> \n"];
[properTicketText appendString:@"<body> \n"];
[properTicketText appendString:@"<div id=\"my\"> \n"];

[properTicketText appendString:singApp.operationTicketData];
[properTicketText appendString:@"\n"];

[properTicketText appendString:@"</div> \n"];
[properTicketText appendString:@"</body> \n"];
[properTicketText appendString:@"</html> \n"];

// Set lblServiceDescriptions label multiline
_lblInfo.lineBreakMode = NSLineBreakByWordWrapping;
_lblInfo.numberOfLines = 0;

[self.wwTicket loadHTMLString:[NSString stringWithString:properTicketText] baseURL:nil];

self.wwTicket.clipsToBounds = NO;

[self.wwTicket setOpaque:NO];
[self.wwTicket setBackgroundColor:
 [UIColor colorWithPatternImage:[UIImage imageNamed:@"ticket_paper2.png"]]];

self.wwTicket.scrollView.alwaysBounceVertical =  NO;
self.wwTicket.scrollView.alwaysBounceHorizontal =  NO;

Answer 1

默认情况下，

alwaysBounceVertical和alwaysBounceHorizonal设置为NO，因此您的代码无效。

相反，您需要将bounces设置为NO，以禁用弹跳，即

self.wwTicket.scrollView.bounces = NO;

如果您的WebView框架和内容大小相同，也可以选择完全禁用滚动，即

self.wwTicket.scrollView.scrollEnabled = NO;

Answer 2

我认为alwaysBounceHorizonal和alwaysBounceVertical，实际上不会禁用弹跳。

如果此属性设置为YES并且弹跳为YES，则即使内容小于滚动视图的边界，也允许垂直拖动。默认值为NO。（Apple docs）。

此属性用于在内容大小小于scrollView大小时启用弹跳，

要禁用垂直反弹，您可以将其内容大小设置为垂直视图大小：

self.wwTicket.scrollView.contentSize = CGSizeMake(self.wwTicket.scrollView.frame.size.width, self.wwTicket.scrollView.contentSize.height);

你可以禁用所有弹跳，就像预览答案一样。

Answer 3

xcode 7，swift 2.0，

@IBOutlet weak var webview: UIWebView!
    override func viewDidLoad() {

        webview.scrollView.bounces = false;

在UIWeb视图的iOS中禁用垂直滚动弹跳？

3 个答案: