ios中webview的高级用法

.隐藏上下滚动时出边界的后面的黑色的阴影

- (void) hideGradientBackground:(UIView*)theView

{

  for (UIView * subview in theView.subviews)

  {

    if ([subview isKindOfClass:[UIImageView class]])

      subview.hidden = YES;

    [self hideGradientBackground:subview];

  }

}

. 禁用拖拽时的反弹效果

[(UIScrollView *)[[webView subviews] objectAtIndex:] setBounces:NO];  

. 判断用户点击类型

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

{

    switch (navigationType)

    {

        //点击连接

        case UIWebViewNavigationTypeLinkClicked:

        {

            NSLog(@"clicked");

        }

            break;

        //提交表单

        case UIWebViewNavigationTypeFormSubmitted:

        {

            NSLog(@"submitted");

        }

        default:

            break;

    }

    return YES;

}

#import "BaseViewController.h"

@interface BaseViewController ()

{

    UIWebView *webview;

}

@end

@implementation BaseViewController

#pragma  mark -life cicry

- (void)viewDidLoad

{

    [super viewDidLoad];

    webview=[[UIWebView alloc] initWithFrame:self.view.bounds];

    webview.delegate=self;//因为这个代理设置的self

    [self.view addSubview:webview];

    [webview loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:self.requestUrl]]];

    [webview release];

    UIScrollView *scollview=(UIScrollView *)[[webview subviews]objectAtIndex:];

    scollview.bounces=NO;

    // Do any additional setup after loading the view.

}

- (void)didReceiveMemoryWarning

{

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}

-(void)viewDidUnload{

    [super viewDidUnload];

    self.requestUrl=nil;

}

- (void)dealloc

{

    [_requestUrl release];

    [super dealloc];

}