rae*_*aed 3 delegates objective-c uiwebview ios
我有一个SuperClass实现<UIWebViewDelegate>,在这个类中我实现了方法webView:shouldStartLoadWithRequest:navigationType:
@interface SuperClass
...
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request1 navigationType:(UIWebViewNavigationType)navigationType {
// SuperClass treatment
}
...
@end
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然后我有一个SubClass扩展此SuperClass。该SubClass工具<UIWebViewDelegate>也和方法webView:shouldStartLoadWithRequest:navigationType:,以及:
@interface SubClass: SuperClass
...
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request1 navigationType:(UIWebViewNavigationType)navigationType {
// SubClass treatment
}
...
@end
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该代码对我有用,因为我需要对进行特殊处理SubClass。但是在特定情况下,我需要调用该SuperClass webView:shouldStartLoadWithRequest:navigationType:方法。
我需要委托来执行SuperClass UIWebViewDelegate方法。
我试图用来super调用该SuperClass方法,但是没有用!
那可能吗?
超类
@interface ViewController () <UIWebViewDelegate>
@end
@implementation ViewController
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request1 navigationType:(UIWebViewNavigationType)navigationType
{
NSLog(@"superview");
return true;
}
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子类(ViewController1.m)
@interface ViewController1 () <UIWebViewDelegate>
@property (strong, nonatomic) IBOutlet UIWebView *webview;
@end
@implementation ViewController1
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request1 navigationType:(UIWebViewNavigationType)navigationType {
NSLog(@"subclass");
[super webView:webView shouldStartLoadWithRequest:request1 navigationType:navigationType];
return true;
}
- (IBAction)action:(id)sender {
NSLog(@"loading");
[_webview loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.google.co.in"]]];
}
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在日志中,它是作为:
2016-06-29 17:51:39.807测试[31575:8224563]正在加载
2016-06-29 17:51:41.008测试[31575:8224563]子类
2016-06-29 17:51:41.008测试[31575:8224563]超级视图
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