UIImagePickerController iOS11调起相册 中的照片被导航栏遮挡

为了适配iOS11下来刷新下下偏移问题，全局设置了[UIScrollView appearance] 的ContentInsetAdjustmentBehavior为UIScrollViewContentInsetAdjustmentNever导致ScrollView向上偏移了，而在iOS11以下却没问题

if(@available(iOS11.0, *)){

        [[UIScrollViewappearance] setContentInsetAdjustmentBehavior:UIScrollViewContentInsetAdjustmentNever];

    }

解决办法:将导航条的毛玻璃效果去除掉就可以了

 UIImagePickerController *pickerController = [[UIImagePickerControlleralloc] init];

pickerController.editing=YES;

pickerController.delegate=self;

pickerController.allowsEditing=YES;

//    去除毛玻璃效果

pickerController.navigationBar.translucent=NO;

    pickerController.sourceType=UIImagePickerControllerSourceTypePhotoLibrary;

[self presentViewController:pickerController animated:YEScompletion:nil];