UIWebview全屏大小 [英] UIWebview full screen size

问题描述

我正在尝试使用设备的整个屏幕在UIWebview中显示pdf，状态栏和顶栏除外。到目前为止，我在.h文件中创建了 IBOutlet UIWebview * webview; 。我在我的故事板中连接了webview并在我的.m文件中编写了以下代码：

I am trying to display a pdf in a UIWebview using the entire screen of the device, except the status bar and top bar. So far, I created IBOutlet UIWebview *webview; in my .h file. I connected the webview in my storyboard and wrote the following code in my .m file:

- (void)viewDidLoad
{
    [super viewDidLoad];

    webview = [[UIWebView alloc] initWithFrame:CGRectMake(0, 0, 320, 460)];

    webview.scalesPageToFit = YES;
    webview.autoresizesSubviews = YES;
    webview.autoresizingMask=(UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth);
    [webview setBackgroundColor:[UIColor clearColor]];
    NSString *path = [[NSBundle mainBundle] pathForResource:@"Chart" ofType:@"pdf"];
    NSURL *targetURL = [NSURL fileURLWithPath:path];
    NSURLRequest *request = [NSURLRequest requestWithURL:targetURL];
    [webview loadRequest:request];

    [self.view addSubview:webview];

}

pdf在我的3.5英寸中正确显示，但在我的4英寸显示屏，底部被切断。当我旋转到横向视图时，这更加明显。大约33％的屏幕根本不使用。我怎样才能解决这个问题？我知道它必须与上面代码中的UIWebview维度有关（ webview = [[UIWebView alloc] initWithFrame：CGRectMake（0,0,320,460）]; ），但有没有更好的方法可以在整个屏幕上简单地显示webview，而无需指定特定的屏幕高度和宽度？

The pdf displays correctly in my 3.5 inch, but in my 4 inch display, the bottom is cut off. This is even more noticeable when I rotate to landscape view. About 33% of the screen is not used at all. How can I fix this? I know it must have something to do with the UIWebview dimensions in my code above (webview = [[UIWebView alloc] initWithFrame:CGRectMake(0, 0, 320, 460)];), but is there a better way to simply display the webview on the entire screen, without specifying a specific screen height and width?

推荐答案

一件便宜的事情是设置webview的框架覆盖 - （void）viewDidLayoutSubviews

One cheap thing to do would be to set the frame of the webview in overriding - (void)viewDidLayoutSubviews

- (void)viewDidLayoutSubviews {
    webView.frame = CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height);
}

这里做的好处是，视图的大小和方向已在此处确定，您可以获得准确的测量结果。

the advantage of doing it here, is that the size and orientation of the view has already been determined here, and you can get an accurate measurement.

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