Question

我想在全屏幕上将内容放在外部屏幕上（现在使用Air Server的MacBook Pro），平板电脑上有一个屏幕。

我正在使用https://github.com/quellish/AirPlayStoryboards中的一个例子 - 这很棒。但是，我发现两个屏幕都没有显示全屏，因为UIScreen的边界回来太小 - iPad显示的颜色稍小（letterboxed），iPad屏幕只显示屏幕的1/4左上角（原点）

知道为什么会这样吗？代码：

WP_Post

Log语句返回如下：

- (void) application:(UIApplication *)__unused application didConnectScreen:(UIScreen *) screen
{

UIStoryboard        *storyboard     = nil;
UIWindow            *screenWindow   = nil;
UIViewController    *tvViewController = nil;

// Set up external screen
UIScreen *secondaryScreen = [UIScreen screens][1];
UIScreen *primaryScreen = [UIScreen screens][0];

NSLog(@"Screen 1 (iPad): %@", primaryScreen); //print the bounds of the iPad
NSLog(@"Screen 2 (MacBook): %@:", secondaryScreen); //print the bounds and size of the MacBook

UIScreenMode *screenMode = [[secondaryScreen availableModes] lastObject];
CGRect bounds = secondaryScreen.bounds;

// Create new outputWindow
screenWindow = [[UIWindow alloc] initWithFrame:bounds];
screenWindow.screen = secondaryScreen;
screenWindow.screen.currentMode = screenMode;
[screenWindow makeKeyAndVisible];


[screenWindow setScreen:screen];

storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:[NSBundle bundleForClass:[self class]]];
tvViewController = [storyboard instantiateViewControllerWithIdentifier:@"TVViewController"];

[screenWindow setClipsToBounds:YES];
[screenWindow setRootViewController:tvViewController];
[screenWindow setHidden:NO];

//  // If you do not retain the window, it will go away and you will see nothing.
[[self windows] addObject:screenWindow];
}

有谁知道如何解决这个问题？

Answer 1

您可以获得如下屏幕尺寸：

    UIScreen *secondaryScreen = [UIScreen screens][1];
    UIScreenMode *secondaryScreenMode = [[secondaryScreen availableModes] objectAtIndex: 0];
    CGSize sizeSecendaryScreen = secondaryScreenMode.size;
    screenWindow = [[UIWindow alloc] initWithFrame:CGRectMake(0,0, sizeSecendaryScreen.width, sizeSecendaryScreen.height)];

参考：Setting UIScreen's mode / resolution

Answer 2

我想出来了。这与[UIScreen mainScreen] .bounds.size有关，在iOS8中变为取向依赖。我从这篇文章中得到了线索：

Is [UIScreen mainScreen].bounds.size becoming orientation-dependent in iOS8?

Answer 3

在我的情况下，没有针对我想要支持的特定分辨率的启动图像。例如：如果你想支持iPhone5，我们需要添加iPhone5大小的发布图像。请检查您的Xcode是否有所有必需的启动图像。这可能是您的解决方案。就我而言，它对我有用！

在外部屏幕上，UIScreen的界限比预期的要小

3 个答案: