Question

我以为我已经清理了但显然没有。我使用下面的代码将webview设置为显示在顶部的nag bar和底部的tab栏之间。这发生在我的viewDidLoad（）方法中。它在我测试过的所有模拟器上运行良好，但是当我测试一个运行7.1.1的朋友的iPhone 4时，webview呈现跨越屏幕的整个高度，由顶部唠叨条和底部标签覆盖杆

如何在7以上的所有设备和操作系统中获得所需的行为？

self.webView = [[UIWebView alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height)];

[self.view addSubview:self.webView];
self.webView.scalesPageToFit = true;
NSURL *url = [NSURL URLWithString:@"http://example.com/notifications.php"];
NSURLRequest *requestURL = [NSURLRequest requestWithURL:url];
[self.webView loadRequest:requestURL];
self.webView.scrollView.showsVerticalScrollIndicator = false;

self.navigationController.navigationBar.titleTextAttributes = @{UITextAttributeTextColor : [UIColor whiteColor]};

[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
self.webView.delegate = self;
self.webView.scrollView.delegate = self;

Answer 1

这是因为你正在跨越整个视图在你的矩形中你需要减去标签和导航栏的高度和宽度

看一下这个例子

- (void)viewDidLoad {
    [super viewDidLoad];

    CGFloat viewheight = self.view.frame.size.height;
    CGFloat navBarHeight = self.navigationController.navigationBar.frame.size.height;
    CGFloat tabBarHeight = self.tabBarController.tabBar.frame.size.height;
    CGFloat spaceToRemove = navBarHeight + tabBarHeight;
    CGFloat newHeight = viewheight - spaceToRemove;

    NSLog(@"%f",newHeight);
    NSLog(@"%f",self.view.frame.size.height);


  CGRect frame =  CGRectMake(0 , 0 + navBarHeight, self.view.frame.size.width, newHeight);

    UIView *newView = [[UIView alloc]initWithFrame:frame];
    newView.backgroundColor = [UIColor redColor];
    [self.view addSubview:newView];


}

IOS View仍然无法加载到正确的位置

1 个答案: