ios - 自定义 webview 键盘问题

Question

因此从这个线程改编代码 UIKeyboardAppearance in UIWebView和 TomSwift's很棒的答案，我得到了大约 99% 的答案。

在 iOS 7 模拟器中，一切似乎都运行良好。然而在 iOS 8 中，当键盘第一次出现时，< > 完成栏是白色的。当我点击或选择另一个输入时，它会更改为我指定的颜色。

我的问题是，如何防止和/或更改该白色部分？

其他线程中的所有代码都是相同的，除了我在 keyboardWillAppear 中这样调用的颜色。

UIWindow *keyboardWindow = nil;
for (UIWindow *testWindow in [[UIApplication sharedApplication] windows]) {
    if (![[testWindow class] isEqual : [UIWindow class]]) {
        keyboardWindow = testWindow;
        break;
    }
}

// Locate UIWebFormView.
for (UIView *possibleFormView in [keyboardWindow subviews]) {
    if ([[possibleFormView description] hasPrefix : @"<UIInputSetContainerView"]) {

        for (UIView* peripheralView in possibleFormView.subviews) {
            peripheralView.backgroundColor = [UIColor colorWithRed:0.271 green:0.271 blue:0.271 alpha:0.75];

            for (UIView* peripheralView_sub in peripheralView.subviews) {
                peripheralView_sub.backgroundColor = [UIColor colorWithRed:0.271 green:0.271 blue:0.271 alpha:0.75];

            }
        }
    }
}

如有任何帮助，我们将不胜感激。

Answer 1

所以随着 iOS 9+ 的发布，我发现它破坏了上述方法。但是通过一些修补和查看一些观点，我想出了一个补充我已经在下面回答的内容。

现在我决定放弃自定义颜色的东西，我正在挖掘适合我的应用程序的黑色键盘。无论如何，这对我有用。在 9.1 sim 到 7 上测试。也在我的 6+ 上运行 9.0.2。

//Keyboard setting
@interface UIWebBrowserView : UIView
@end
@interface UIWebBrowserView (UIWebBrowserView_Additions)
@end
@implementation UIWebBrowserView (UIWebBrowserView_Additions)
- (id)inputAccessoryView {
    return nil;
}

- (UIKeyboardAppearance) keyboardAppearance{

    NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
    BOOL switchOn = [userDefaults boolForKey:@"darkKeyboard"];

    if (switchOn) {
        return UIKeyboardAppearanceDark;
    }
    else {
        return UIKeyboardAppearanceDefault;
    }
}
@end

@interface UITextInputTraits : UIWebBrowserView
@end
@interface UITextInputTraits (UIWebBrowserView)
@end
@implementation UITextInputTraits (UIWebBrowserView)
- (UIKeyboardAppearance) keyboardAppearance{

    NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
    BOOL switchOn = [userDefaults boolForKey:@"darkKeyboard"];

    if (switchOn) {
        return UIKeyboardAppearanceDark;
    }
    else {
        return UIKeyboardAppearanceDefault;
    }
}
@end

我真的希望有人觉得这些答案有帮助 :D

更新信息:对完成栏很好奇，这就是这一切的开始。我重新启用它只是为了看看，发现它把它变成了黑色。不错的奖励，尽管我放弃了它以使用滚动隐藏键盘。

15 年 12 月 19 日更新所以我决定从 UIWebView 过渡到 WKWebView，结果发现两者之间显然有所不同。我设法让它再次工作。常规的 UIKeyboardAppearanceDark 调用会导致键盘比我喜欢的更透明。所以我根据自己的喜好修改了它。同样，这可能不是标准的做事方式，但我不在乎，反正它不会成为苹果。

所有内容仍在 AppDelegate 中。

//Removing the input bar above the keyboard.
@interface InputHider : NSObject @end
@implementation InputHider
-(id)inputAccessoryView{
    return nil;
}
@end

@interface UIWebBrowserView : NSObject
@end
@interface NSObject (UIWebBrowserView_Additions)
@end
@implementation NSObject (UIWebBrowserView_Additions)
- (UIKeyboardAppearance) keyboardAppearance{
    NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
    BOOL switchOn = [userDefaults boolForKey:@"darkKeyboard"];

    if (switchOn) {
        UIWindow *keyboardWindow = nil;
        for (UIWindow *testWindow in [[UIApplication sharedApplication] windows]) {
            if (![[testWindow class] isEqual : [UIWindow class]]) {
                keyboardWindow = testWindow;
                break;
            }
        }

        // Locate UIWebFormView.
        for (UIView *possibleFormView in [keyboardWindow subviews]) {

            if ([possibleFormView isKindOfClass:NSClassFromString(@"UIInputSetContainerView")] ||
                [possibleFormView isKindOfClass:NSClassFromString(@"UIInputSetHostView")]) {
                for (UIView* peripheralView in possibleFormView.subviews) {
                    peripheralView.backgroundColor = [UIColor colorWithRed:0.271 green:0.271 blue:0.271 alpha:1.0];

                    //Keyboard background
                    for (UIView* peripheralView_sub in peripheralView.subviews) {
                        peripheralView_sub.backgroundColor = [UIColor colorWithRed:0.271 green:0.271 blue:0.271 alpha:1.0];

                        //Accessory bar color
                        if ([possibleFormView isKindOfClass:NSClassFromString(@"WKContentView")]) {
                            for (UIView* UIInputViewContent_sub in peripheralView_sub.subviews) {
                                [[UIInputViewContent_sub layer] setOpacity : 1.0];
                                UIInputViewContent_sub.backgroundColor = [UIColor colorWithRed:0.271 green:0.271 blue:0.271 alpha:1.0];

                            }
                        }
                    }
                }
            }
        }
        return UIKeyboardAppearanceDark;
    }
    else {
        UIWindow *keyboardWindow = nil;
        for (UIWindow *testWindow in [[UIApplication sharedApplication] windows]) {
            if (![[testWindow class] isEqual : [UIWindow class]]) {
                keyboardWindow = testWindow;
                break;
            }
        }

        // Locate UIWebFormView.
        for (UIView *possibleFormView in [keyboardWindow subviews]) {

            if ([possibleFormView isKindOfClass:NSClassFromString(@"UIInputSetContainerView")] || [possibleFormView isKindOfClass:NSClassFromString(@"UIKeyboard")]) {
                for (UIView* peripheralView in possibleFormView.subviews) {
                    peripheralView.backgroundColor = [UIColor clearColor];

                    //Keyboard background
                    for (UIView* peripheralView_sub in peripheralView.subviews) {
                        peripheralView_sub.backgroundColor = [UIColor clearColor];

                        //Accessory bar color
                        if ([possibleFormView isKindOfClass:NSClassFromString(@"UIWebFormAccessory")]) {
                            for (UIView* UIInputViewContent_sub in peripheralView_sub.subviews) {
                                [[UIInputViewContent_sub layer] setOpacity : 1.0];
                                UIInputViewContent_sub.backgroundColor = [UIColor clearColor];

                            }
                        }
                    }
                }
            }
        }
        return UIKeyboardAppearanceDefault;
    }
}
@end

@interface UITextInputTraits : UIWebBrowserView
@end
@interface UITextInputTraits (UIWebBrowserView)
@end
@implementation UITextInputTraits (UIWebBrowserView)
- (UIKeyboardAppearance) keyboardAppearance{
    NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
    BOOL switchOn = [userDefaults boolForKey:@"darkKeyboard"];

    if (switchOn) {
        return UIKeyboardAppearanceDark;
    }
    else {
        return UIKeyboardAppearanceDefault;
    }
}
@end

//Disables endDisablingInterfaceAutorotationAnimated error for keyboard
@interface UIWindow (UIWebBrowserView)
- (void)beginDisablingInterfaceAutorotation;
- (void)endDisablingInterfaceAutorotation;
@end

@implementation UIWindow (UIWebBrowserView)
- (void)beginDisablingInterfaceAutorotation {}
- (void)endDisablingInterfaceAutorotation{}
@end

我还没有像以前那样设法找到隐藏 inputAccessoryBar 的方法，但多亏了几个线程，我才让它工作。在我的 View Controller 中，我调用:

-(void)removeInputAccessoryView {
    UIView* subview;

    for (UIView* view in webView.scrollView.subviews) {
        if([[view.class description] hasPrefix:@"WKContent"])
            subview = view;
    }

    if(subview == nil) return;

    NSString* name = [NSString stringWithFormat:@"%@SwizzleHelper", subview.class.superclass];
    Class newClass = NSClassFromString(name);

    if(newClass == nil)
    {
        newClass = objc_allocateClassPair(subview.class, [name cStringUsingEncoding:NSASCIIStringEncoding], 0);
        if(!newClass) return;

        Method method = class_getInstanceMethod([AppDelegate class], @selector(inputAccessoryView));
        class_addMethod(newClass, @selector(inputAccessoryView), method_getImplementation(method), method_getTypeEncoding(method));

        objc_registerClassPair(newClass);
    }

    object_setClass(subview, newClass);
}

在我调用的 viewDidLoad 中:

[self removeInputAccessoryView];

我计划再进行一些修补，但就目前而言，它可以满足我的需要。