新建一個UIWindow的category:
+ (void)load {
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
Class class = objc_getClass("UIWindow");
SEL originalSelector = @selector(sendEvent:);
SEL swizzledSelector = @selector(sendEventEx:);
Method originalMethod = class_getInstanceMethod(class, originalSelector);
Method swizzledMethod = class_getInstanceMethod(class, swizzledSelector);
method_exchangeImplementations(originalMethod, swizzledMethod);
});
}
- (void)sendEventEx:(UIEvent *)event {
if ([UIWindow isSendEventToDealloctingObject:event]) {
return;
}
[self sendEventEx: event];
}
+ (BOOL) isSendEventToDealloctingObject:(UIEvent *)event {
if (event.type == UIEventTypeTouches) {
for (UITouch *touch in event.allTouches) {
NSString *windowName = NSStringFromClass([touch.window class]);
if ([windowName isEqualToString:@"UIRemoteKeyboardWindow"]) {
UIView* view = touch.view;
UIResponder *arg2 = view.nextResponder;
NSString* responderClassName = NSStringFromClass([arg2 class]);
if ([responderClassName isEqualToString:@"_UIRemoteInputViewController"]) {
BOOL isDeallocating = NO;
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Warc-performSelector-leaks"
SEL sel = NSSelectorFromString(@"_isDeallocating");
isDeallocating = [arg2 respondsToSelector:sel] && [arg2 performSelector:sel];
#pragma clang diagnostic pop
if (isDeallocating) {
return YES;
}
}
}
}
}
return NO;
}
