Question

我的UIWebView位于我的视图控制器中，作为SubView添加。我试图从选择器的方法访问它，它将UIViewController作为param，所以我正在做一个子视图数组，迭代它并使用isKindOfClass:UIWebView来查找我的UIWebView并执行我的选择器，但我可以'在子视图数组中找到webView，我不知道我做错了什么。

这就是我的所作所为：

静态UIWebView * static_iVar = nil;

- (void)viewDidLoad {
    [super viewDidLoad];

    NSURL *url = [NSURL URLWithString:@"http://example.com"];
    [self configureStatic_iVarwithUrlLink:url];
}


-(void)configureStatic_iVarwithUrlLink:(NSURL *)url{

//Configure father class webView...

static_iVar = [[UIWebView alloc] initWithFrame:CGRectMake(0, 0, width,height)];
//code...


[self.view addSubview:static_iVar];
    NSLog(@"%@",[self.view subviews]);

}

这个Nslog打印出来，所以WebView作为子视图位于我的主视图中：

2015-08-18 16:29:50.719 Hnos Lopez[1785:202794] (
    "<_UILayoutGuide: 0x14564180; frame = (0 0; 0 0); hidden = YES; layer = <CALayer: 0x14564330>>",
    "<_UILayoutGuide: 0x14564670; frame = (0 0; 0 0); hidden = YES; layer = <CALayer: 0x14562520>>",
    "<UIWebView: 0x1456e530; frame = (0 0; 320 568); autoresize = W+H; layer = <CALayer: 0x1456e700>>"

按下后退或刷新按钮时会发生这种情况，并调用选择器方法：

-(void)goBack{
    NSArray *subviews = [self.view subviews];
    NSLog(@"%@",[self.view subviews]);
    for (UIView *subview in subviews){
        if([subview isKindOfClass:[UIWebView class]] && [subview respondsToSelector:@selector(goBack)])
        {
            [subview performSelector:@selector(goBack)];
        }
    }
}

这就是NSLog打印的内容：

2015-08-18 16:31:44.675 Hnos Lopez[1785:202794] (
    "<UIView: 0x14562af0; frame = (0 0; 320 568); autoresize = W+H; layer = <CALayer: 0x145623b0>>",
    "<ADBannerView: 0x1453cd00; frame = (0 44; 320 50); clipsToBounds = YES; autoresize = W; layer = <CALayer: 0x1457f620>>",
    "<UIActivityIndicatorView: 0x14591910; frame = (150 274; 20 20); hidden = YES; autoresize = W+H; layer = <CALayer: 0x14591b30>>",
    "<ADBannerView: 0x146af670; frame = (0 568; 320 50); clipsToBounds = YES; layer = <CALayer: 0x146af880>>"

我的子视图中没有UIWebView

无法从UiViewController子视图访问webView

0 个答案: