Question

有没有办法完全忽略iOS应用中的动态类型/字体大小设置？我的意思是有一种方式像plist条目，所以我可以完全禁用它。据我所知，只要设置发生变化，我们就可以观察并重新配置字体。我正在寻找一个更简单的解决方案。我正在使用iOS8。感谢。

Answer 1

快速等同于@含义的回答如下：

在AppDelegate中：

@objc func swizzled_preferredContentSizeCategory() -> UIContentSizeCategory {
    return UIContentSizeCategory.small
}

open func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
    let originalMethod = class_getInstanceMethod(UIApplication.self, #selector(preferredContentSizeCategory))
    let swizzledMethod = class_getInstanceMethod(UIApplication.self, #selector(swizzled_preferredContentSizeCategory))
    method_exchangeImplementations(originalMethod, swizzled_preferredContentSizeCategory)
}

Answer 2

在AppDelegate添加：

#import <objc/runtime.h>

@implementation AppDelegate

NSString* swizzled_preferredContentSizeCategory(id self, SEL _cmd)
{
    return UIContentSizeCategoryLarge;  // Set category you prefer, Large being iOS' default.
}

- (BOOL)application:(UIApplication*)application didFinishLaunchingWithOptions:(NSDictionary*)launchOptions
{
    Method method = class_getInstanceMethod([UIApplication class], @selector(preferredContentSizeCategory));
    method_setImplementation(method, (IMP)swizzled_preferredContentSizeCategory);

    ...
}

Answer 3

无需麻烦![test](/src/images/2.jpg) ![test2](/src/images/3.jpg) []()。只是子类UIApplication并提供您自己的UIApplication的实现：

迅速：

preferredContentSizeCategory

Objective-C：

class MyApplication: UIApplication {

    override var preferredContentSizeCategory: UIContentSizeCategory {
        get { return UIContentSizeCategory.large }
    }
}

UIApplicationMain(
    CommandLine.argc,
    CommandLine.unsafeArgv,
    NSStringFromClass(MyApplication.self),
    NSStringFromClass(AppDelegate.self)
)

Answer 4

只需提供对@gebirgsbärbel答案的Swift 4修复即可。 Objective-C中的“ preferredContentSizeCategory”是一种方法，但是在Swift中，它是一个只读变量。所以在您的AppDelegate中是这样的：

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?

    // MARK: - UIApplicationDelegate

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey : Any]? = nil) -> Bool {

        UIApplication.classInit

        self.window = UIWindow(frame: UIScreen.main.bounds)
        ...
        self.window?.makeKeyAndVisible()
        return true
    }
}

// MARK: - Fix Dynamic Type

extension UIApplication {

    static let classInit: Void = {
        method_exchangeImplementations(
            class_getInstanceMethod(UIApplication.self, #selector(getter: fixedPreferredContentSizeCategory))!,
            class_getInstanceMethod(UIApplication.self, #selector(getter: preferredContentSizeCategory))!
        )
    }()

    @objc
    var fixedPreferredContentSizeCategory: UIContentSizeCategory {
        return .large
    }
}

忽略iOS中的动态类型：辅助功能

4 个答案: