关于webapp的一个webframe问题

最近重启ios webapp的项目，将之前的框架拿过来发现出现了错误，错误出现在写JSAlart控件的WebFrame上，xcode会报WebFrame是未定义的错误。由于之前使用的是ios5的 sdk现在是ios7的SDK，不知道是不是做了修改 了，现在只需要将WebFrame改成CGRect就可以了。附上代码修改：

原代码：

@interface UIWebView (JavaScriptAlert)

- (void)webView:(UIWebView *)sender runJavaScriptAlertPanelWithMessage:(NSString *)message initiatedByFrame:(WebFrame *)frame;

@end

@implementation UIWebView (JavaScriptAlert)

-(void)webView:(UIWebView *)sender runJavaScriptAlertPanelWithMessage:(NSString *)message initiatedByFrame:(WebFrame *)frame {

UIAlertView* customAlert = [[UIAlertView alloc] initWithTitle:@"消息提示" message:message delegate:nil cancelButtonTitle:@"确定" otherButtonTitles:nil];

[customAlert show];   [customAlert autorelease];      }

@end

改成：（注意红色的部分）

@interface UIWebView (JavaScriptAlert)

- (void)webView:(UIWebView *)sender runJavaScriptAlertPanelWithMessage:(NSString *)message initiatedByFrame:(CGRect*)frame;

@end

@implementation UIWebView (JavaScriptAlert)

-(void)webView:(UIWebView *)sender runJavaScriptAlertPanelWithMessage:(NSString *)message initiatedByFrame:(CGRect*)frame {

UIAlertView* customAlert = [[UIAlertView alloc] initWithTitle:@"消息提示" message:message delegate:nil cancelButtonTitle:@"确定" otherButtonTitles:nil];

[customAlert show];   [customAlert autorelease];

}

@end