模拟器 iPhone Xcode 上出现白屏

Question

我在 YouTube 上观看了这个视频： Xcode 如何为 iOS 应用程序创建 Webview

我关注了视频，但如果我在模拟器上运行我的应用程序，只有我看到白屏。

这个ViewController.h

//
//  ViewController.h
//

#import <UIKit/UIKit.h>

@interface ViewController : UIViewController

{
    IBOutlet UIWebView *myWebView;

}


@end


//

//ViewController.m //

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];


    NSURL *myURL = [NSURL URLWithString:@"http://website.com"]; NSURLRequest *myRequest = [NSURLRequest requestWithURL:myURL]; myWebView.scalesPageToFit = YES; [myWebView loadRequest:myRequest];

}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end

你能让我修复这个错误吗？

Answer 1

他的ViewController.m

//
//  ViewController.m
//

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];


    NSURL *myURL = [NSURL URLWithString:@"http://website.com"]; NSURLRequest *myRequest = [NSURLRequest requestWithURL:myURL]; myWebView.scalesPageToFit = YES; [myWebView loadRequest:myRequest];

}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end

Answer 2

您必须在创建请求后实际加载请求！

NSURL *url = [NSURL URLWithString:@"http://yoururl.com"];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
[self.webView loadRequest:request];