获取UIWebView正确加载CGRect

Question

我想让我的webView正确加载在我设置的CGRect框架中，activityIndi​​cator正在运行。

这种加载正确，当我与[self.view addSubview:webView];设置，但activityindicator不出现。当我使用webView.delegate = self;进行设置时，activityindicator确实会出现，但webview在加载时会覆盖整个屏幕。我有一个分段的顶部，然后被掩盖起来。

- (void)viewDidLoad { 
    [super viewDidLoad]; 

    CGRect webFrame = CGRectMake(0.0, 50.0, 320.0, 318.0); 

    activityIndicator = [[UIActivityIndicatorView alloc]initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray]; 
    [self.view addSubview:activityIndicator]; 
    activityIndicator.frame = CGRectMake(250, 250, 30.0, 30.0); 
    self.view.center = CGPointMake(160.0f, 190.0f); 
    activityIndicator.center = self.view.center; 

    webView = [[UIWebView alloc] initWithFrame:webFrame]; 

    [webView setBackgroundColor:[UIColor whiteColor]]; 
    NSString *urlAddress = @"http://www.google.com"; 
    NSURL *url = [NSURL URLWithString:urlAddress]; 
    NSURLRequest *requestObj = [NSURLRequest requestWithURL:url]; 
    [webView loadRequest:requestObj]; 
    webView.delegate = self; 
// [self.view addSubview:webView]; 
} 

- (void)webViewDidStartLoad:(UIWebView *)webView { 
    NSLog(@"activity started"); 
    [activityIndicator startAnimating]; 
} 
- (void)webViewDidFinishLoad:(UIWebView *)webView { 
    NSLog(@"activity stopped"); 
    [activityIndicator stopAnimating]; 
    self.view = webView; 
} 

Answer 1

应该

- (void)webViewDidFinishLoad:(UIWebView *)webView { 
    NSLog(@"activity stopped"); 
    [activityIndicator stopAnimating]; 
    [[self view] addSubView:webView]; 
} 

没有被覆盖的意见，他们被从层次结构中移除通过重新视图属性。