webview 页面返回原生页面

webview 页面返回原生页面

方法就是在html5 代码中添加：

function chooseCar(){ //为按钮的点击时间

var url="testapp:";

document.location = url;

}

然后实现代理方法

- (BOOL)webView:(UIWebView*)webView shouldStartLoadWithRequest:(NSURLRequest*)request navigationType:(UIWebViewNavigationType)navigationType {

NSString *requestString = [[request URL] absoluteString];

NSArray *components = [requestString componentsSeparatedByString:@":"];

if ( components.count >0&&[(NSString *)[components objectAtIndex:0] isEqualToString:@"testapp"]) {

UIAlertView *alert = [[UIAlertView alloc]

initWithTitle:@"Alert from Cocoa Touch" message:@"test"

delegate:self cancelButtonTitle:nil

otherButtonTitles:@"OK", nil];

[alert show];

return NO;

}

return YES;

}