NSString *imagePath = [[NSBundle mainBundle] resourcePath];
imagePath = [imagePath stringByReplacingOccurrencesOfString:@"/" withString:@"//"];
imagePath = [imagePath stringByReplacingOccurrencesOfString:@" " withString:@"%20"];
NSString * js = [NSString stringWithFormat:@"document.images[0].src='file:/%@//%@'",imagePath,@"test.png"];
[infoWebView stringByEvaluatingJavaScriptFromString:js];
NSString *path = [infoWebView stringByEvaluatingJavaScriptFromString:@"document.images[0].src"];像一般情况下一样用file scheme访问就可以了
如果加载不了的话，多半是因为html页面还未加载完，你可以这样使用：
- (void)viewDidLoad
{
[super viewDidLoad];
UIWebView *webView = [[UIWebView alloc] initWithFrame:self.view.bounds];
webView.delegate = self;
[webView loadHTMLString:@"<html><head></head><body><img class='test' width=100% height=100% src=''></body></html>" baseURL:nil];
[self.view addSubview:webView];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#pragma mark - UIWebViewDelegate methods
-(void)webViewDidFinishLoad:(UIWebView *)webView{
NSString *imagePath = [[NSBundle mainBundle] resourcePath];
imagePath = [imagePath stringByReplacingOccurrencesOfString:@"/" withString:@"//"];
imagePath = [imagePath stringByReplacingOccurrencesOfString:@" " withString:@"%20"];
imagePath = [NSString stringWithFormat:@"file:/%@//%@",imagePath,@"test.png"];
NSString * js = [NSString stringWithFormat:@"document.images[0].src='%@'",imagePath];
[webView stringByEvaluatingJavaScriptFromString:js];
NSString *path = [webView stringByEvaluatingJavaScriptFromString:@"document.body.innerHTML"];
NSLog(@"%@",path);
}