1. 在Appdeleagte中加入這句話,雖然沒有抖動(dòng)了,但是會(huì)造成UI布局問題

[[UITabBar appearance] setTranslucent:false];

2.自定義TabbarView,繼承UITabbarView,添加以下方法,親測(cè)有效

CG_INLINE BOOL
OverrideImplementation(Class targetClass, SEL targetSelector, id (^implementationBlock)(Class originClass, SEL originCMD, IMP originIMP)) {
    Method originMethod = class_getInstanceMethod(targetClass, targetSelector);
    if (!originMethod) {
        return NO;
    }
    IMP originIMP = method_getImplementation(originMethod);
    method_setImplementation(originMethod, imp_implementationWithBlock(implementationBlock(targetClass, targetSelector, originIMP)));
    return YES;
}

+ (void)load {
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        if (@available(iOS 12.1, *)) {
            OverrideImplementation(NSClassFromString(@"UITabBarButton"), @selector(setFrame:), ^id(__unsafe_unretained Class originClass, SEL originCMD, IMP originIMP) {
                return ^(UIView *selfObject, CGRect firstArgv) {
                    
                    if ([selfObject isKindOfClass:originClass]) {
                        // 如果發(fā)現(xiàn)即將要設(shè)置一個(gè) size 為空的 frame，則屏蔽掉本次設(shè)置
                        if (!CGRectIsEmpty(selfObject.frame) && CGRectIsEmpty(firstArgv)) {
                            return;
                        }
                    }
                    
                    // call super
                    void (*originSelectorIMP)(id, SEL, CGRect);
                    originSelectorIMP = (void (*)(id, SEL, CGRect))originIMP;
                    originSelectorIMP(selfObject, originCMD, firstArgv);
                };
            });
        }
    });
}

參考鏈接:https://www.cnblogs.com/fakeCoder/p/9979145.html