ios 让WKWebview弹出键盘上的按钮影藏
2017-03-11 本文已影响1032人
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#import
@interface WKWebView (AccessoryHiding)
@property (nonatomic, assign) BOOL hackishlyHidesInputAccessoryView;
@end
#import "WKWebView+AccessoryHiding.h"
#import
#import
@implementation WKWebView (HackishAccessoryHiding)
static const char * const hackishFixClassName = "WKContentViewMinusAccessoryView";
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
