ios WKWebview弹出键盘上的按钮隐藏

最新推荐文章于 2022-04-28 08:41:09 发布

Boris0629

最新推荐文章于 2022-04-28 08:41:09 发布

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分类专栏： iOS

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本文介绍了一种在iOS应用中使用WKWebView时，通过Objective-C代码自定义隐藏键盘附件视图的方法。该方法涉及创建WKContentView的子类，并重写inputAccessoryView方法以实现附件视图的隐藏。

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#import <WebKit/WebKit.h>

@interface WKWebView (AccessoryHiding)

@property (nonatomic, assign) BOOL hackishlyHidesInputAccessoryView;

@end

#import "WKWebView+AccessoryHiding.h"

#import <objc/runtime.h>

#import <UIKit/UIKit.h>

@implementation WKWebView (HackishAccessoryHiding)

static const char * const hackishFixClassName = "WKContentViewMinusAccessoryView";

//static const char * const hackishFixClassName = "UIWebBrowserViewMinusAccessoryView";

//UIWebBrowser

static Class hackishFixClass = Nil;

- (UIView *)hackishlyFoundBrowserView {

UIScrollView *scrollView = self.scrollView;

UIView *browserView = nil;

for (UIView *subview in scrollView.subviews) {

NSLog(@"%@",NSStringFromClass([subview class]));

if ([NSStringFromClass([subview class]) hasPrefix:@"WKContentView"]) {

browserView = subview;

break;

}

}

return browserView;

}

- (id)methodReturningNil {

return nil;

}

- (void)ensureHackishSubclassExistsOfBrowserViewClass:(Class)browserViewClass {

if (!hackishFixClass) {

Class newClass = objc_allocateClassPair(browserViewClass, hackishFixClassName, 0);

IMP nilImp = [self methodForSelector:@selector(methodReturningNil)];

class_addMethod(newClass, @selector(inputAccessoryView), nilImp, "@@:");

objc_registerClassPair(newClass);

hackishFixClass = newClass;

}

}

- (BOOL) hackishlyHidesInputAccessoryView {

UIView *browserView = [self hackishlyFoundBrowserView];

return [browserView class] == hackishFixClass;

}

- (void) setHackishlyHidesInputAccessoryView:(BOOL)value {

UIView *browserView = [self hackishlyFoundBrowserView];

if (browserView == nil) {

return;

}

[self ensureHackishSubclassExistsOfBrowserViewClass:[browserView class]];

if (value) {

object_setClass(browserView, hackishFixClass);

}

else {

Class normalClass = objc_getClass("WKContentView");

object_setClass(browserView, normalClass);

}

[browserView reloadInputViews];

}

@end