【发布时间】:2012-09-19 10:13:58
【问题描述】:
WebView 不显示。 我的代码是
WebViewController.m
#import "WebViewController.h"
@interface WebViewController ()
@end
@implementation WebViewController
@synthesize url, webView;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
webView = [[UIWebView alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height)];
[self.view addSubview:self.webView];
[self.webView loadRequest:[NSURLRequest requestWithURL:url]];
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
@end
在我的
ViewController.m
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
// Spit out some pretty JSON for the tweet that was tapped. Neato.
//NSString *formattedJSON = [[NSString alloc] initWithData:[NSJSONSerialization dataWithJSONObject:[self.office objectAtIndex:indexPath.row] options:NSJSONWritingPrettyPrinted error:nil] encoding:NSUTF8StringEncoding];
//NSLog(@"tweet:\n%@", formattedJSON);
NSObject *vURL = [self.office objectAtIndex:indexPath.row];
self.URL =vURL;
WebViewController * vc = [[WebViewController alloc] init];
vc.url = [NSURL URLWithString:URL];
NSLog(@"%@",URL);
[self.navigationController pushViewController:vc animated:YES];
}
【问题讨论】:
-
当你步入它的时候,vc的价值是什么?
-
什么值,vc 是我的 webview 控制器的实例
-
是
URL variable the instance variable backing yourURL? What's its value at the time you executevc.url = [NSURL URLWithString:URL];`? “不会显示”到底是什么意思?控制器根本没有出现,还是网页没有加载? -
我只是从 webviewcontroller 的 viewcontroller 发送我的对象。
-
是的,我明白了。在运行时,什么是有效的 URL?
标签: iphone ios uitableview uiwebview webview