禁用UIWebView的默認交互行爲

        實現UIWebviewDelegate協議，在webViewDidFinishLoad:方法中添加如下代碼 

1	- (void)webViewDidFinishLoad:(UIWebView *)webView {

2

// 禁用用戶選擇

3	[webView stringByEvaluatingJavaScriptFromString:@"document.documentElement.style.webkitUserSelect='none';"];

4

5	// 禁用長按彈出框

6	[webView stringByEvaluatingJavaScriptFromString:@"document.documentElement.style.webkitTouchCallout='none';"];

7

}