我有以下代码以编程方式创建UIWebView并在其上创建UIButton以关闭它.创建没问题,但问题是我无法再参考创建的UIWebView来关闭按钮！
- UIWebView *webView = [[UIWebView alloc] initWithFrame:CGRectMake(0,320,480)];
- NSURL *url = [NSURL URLWithString:@"http://www.google.com"];
- NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
- [webView loadRequest:requestObj];
- [self.view addSubview:webView];
- UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
- [button addTarget:self
- action:@selector(aMethod:)
- forControlEvents:UIControlEventTouchDown];
- [button setTitle:@"Close" forState:UIControlStateNormal];
- button.frame = CGRectMake(80,210,160,40);
- [button addTarget:self action:@selector(close:) forControlEvents:UIControlEventTouchUpInside];
- [webView addSubview:button];
- - (IBAction)close:(id)sender {
- ????
- }
感谢您提前的帮助:)
解决方法
在ViewController.m中
- UIWebView *webView = [[UIWebView alloc] initWithFrame:CGRectMake(0,480)];
- // tag will be used to get this webview later
- webView.tag=55;
- NSURL *url = [NSURL URLWithString:@"http://www.google.com"];
- NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
- [webView loadRequest:requestObj];
- [self.view addSubview:webView];
- UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
- [button addTarget:self
- action:@selector(close:)
- forControlEvents:UIControlEventTouchDown];
- [button setTitle:@"Close" forState:UIControlStateNormal];
- button.frame = CGRectMake(80,40);
- [button addTarget:self action:@selector(close:) forControlEvents:UIControlEventTouchUpInside];
- [webView addSubview:button];
- - (IBAction)close:(id)sender {
- [[self.view viewWithTag:55] removeFromSuperview];
- }
