UIActivityViewController原生分享模塊遮擋了視圖的解決辦法域仇。
如圖，視圖加載到KeyWindow,UIActivityViewController類卻在夾到中間了。

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方法一：很明顯將遮擋的視圖加到當前控制器桶至，這樣子UIActivityViewController就不會被遮擋了离唬，讓我們先試一下。

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這時候發(fā)覺褪迟，UIActivityViewController是不會被遮擋了，但tabBar區(qū)域會遮擋彈框出來的部分圖層答憔，即使你將tabBar隱藏了味赃，接著修改當前所有控制器的涂層高度，讓它等同于屏幕寬～～然而虐拓，這真的是太麻煩了心俗。

隨手一試，報錯:<UIActivityViewController: 0x7f8222239a00> should have parent view controller蓉驹〕情唬看來系統(tǒng)方法真的不能按著自己的想法來了。

UIWindow * window = [[UIApplication sharedApplication] keyWindow];
        //[window.rootViewController presentViewController:activityVC animated:YES completion:nil];
        [window.rootViewController addChildViewController:activityVC];
        
        UIWindow *keyWindow = [UIApplication sharedApplication].keyWindow;
        UIView *activityView = activityVC.view;
        [keyWindow addSubview:activityView];

weGood[11959:157654] *** Terminating app due to uncaught exception 'UIViewControllerHierarchyInconsistency', reason: 'child view controller:<UIActivityViewController: 0x7f8222239a00> should have parent view controller:(null) but actual parent is:<XDTabBarController: 0x7f8220d125d0>'
*** First throw call stack:

最終解決辦法

if(shareImgs.count>1){//調(diào)用原生分享
        UIActivityViewController *activityVC = [[UIActivityViewController alloc]initWithActivityItems:shareImgs applicationActivities:nil];
        
        //去除一些不需要的圖標選項
        activityVC.excludedActivityTypes = @[UIActivityTypeAirDrop, UIActivityTypePostToWeibo, UIActivityTypePostToTencentWeibo];
        
        //成功失敗的回調(diào)block
        __weak __typeof(self)weakSelf = self;
        UIActivityViewControllerCompletionWithItemsHandler myBlock = ^(UIActivityType __nullable activityType, BOOL completed, NSArray * __nullable returnedItems, NSError * __nullable activityError) {
            
            [weakSelf.vc.view addSubview:weakSelf];
            UIWindow *keyWindow = [UIApplication sharedApplication].keyWindow;
            [keyWindow addSubview:weakSelf];
            
            if (completed){
                [MBProgressHUD showSuccess:@"謝謝分享态兴！"];
            }else{
                NSLog(@"************Share fail with error %@*********",activityError);
            }
        };
        activityVC.completionWithItemsHandler = myBlock;
        
        
        UIWindow * window = [[UIApplication sharedApplication] keyWindow];
        [window.rootViewController presentViewController:activityVC animated:YES completion:nil];
        
        [self removeFromSuperview];
        [self.vc.view addSubview:self];
    }

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最終圖層

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--end.