問題如圖

該問題是因為設定了

if (@available(iOS 11, *)) {
        UIScrollView.appearance.contentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentNever;
    }

引起的。

解決方案
在彈出系統相簿前加入

 if (@available(iOS 11, *)) {
        UIScrollView.appearance.contentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentAutomatic
 
;
    }

 UIImagePickerController *ipc = [[UIImagePickerController alloc] init];
    ipc.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
    ipc.delegate = self;
    ipc.allowsEditing = YES;
    if (@available(iOS 11, *)) {
        UIScrollView.appearance.contentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentAutomatic;
    }
    [self
 
 presentViewController:ipc animated:YES completion:nil];

在 - (void)imagePickerController:(UIImagePickerController )picker didFinishPickingMediaWithInfo:(NSDictionary

if (@available(iOS 11, *)) {
        UIScrollView.appearance.contentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentNever
 
;
    }

就解決了！！！