Question

我刚刚开始学习Xcode，并遇到了一些问题......

我在Xcode 4.3中制作了一个带标签的应用程序，它可以作为deired使用。但我之前创建了一个简单的UIWebView应用程序，现在我想在新应用程序的一个选项卡中实现。

这是我在FirstViewController的类中所做的：

//  FirstViewController.h
//  SafeLine
//
//  Created by Camilla Fröberg on 2012-03-27.
//  Copyright (c) 2012 SafeLine Sweden AB. All rights reserved.
//

#import <UIKit/UIKit.h>

@interface FirstViewController : UIViewController {

    IBOutlet UIWebView *webDisplay;
}

@property(nonatomic,retain) UIWebView *webDisplay;


@end

和FirstViewController.m：

//  FirstViewController.m
//  SafeLine
//
//  Created by Camilla Fröberg on 2012-03-27.
//  Copyright (c) 2012 SafeLine Sweden AB. All rights reserved.
//

#import "FirstViewController.h"

@interface FirstViewController ()


@end

@implementation FirstViewController
@synthesize webDisplay;

// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {

    NSString *urlAddress = @"http://www.google.com";

    //Create a URL object.
    NSURL *url = [NSURL URLWithString:urlAddress];

    //URL Requst Object
    NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];

    //Load the request in the UIWebView.
    [webDisplay loadRequest:requestObj];



    [super viewDidLoad];
}



// Override to allow orientations other than the default portrait orientation.
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    return YES;
}

- (void)didReceiveMemoryWarning {
    // Releases the view if it doesn't have a superview.
    [super didReceiveMemoryWarning];

    // Release any cached data, images, etc that aren't in use.
}

- (void)viewDidUnload {
    // Release any retained subviews of the main view.
    // e.g. self.myOutlet = nil;
}


@end

运行应用程序时，我不会收到任何错误消息，也不会显示网站，而只会显示空视图...

感谢任何帮助！

//祝你好运来自瑞典的卡米拉

Answer 1

我认为，您应该检查是否将Interface Builder中的UIWebView与IBOutlet连接。

选项卡式应用程序中的UIWebView（Xcode）

1 个答案: