弹出相机时去掉modalPresentationStyle的设置，防止屏幕旋转时有黑影

TZImagePickerController/TZImagePickerController/TZPhotoPickerController.m

@@ -670,7 +670,6 @@ static CGFloat itemMargin = 5;
             self.imagePickerVc.videoMaximumDuration = tzImagePickerVc.videoMaximumDuration;
         }
         self.imagePickerVc.mediaTypes= mediaTypes;
-        _imagePickerVc.modalPresentationStyle = UIModalPresentationOverCurrentContext;
         if (tzImagePickerVc.uiImagePickerControllerSettingBlock) {
             tzImagePickerVc.uiImagePickerControllerSettingBlock(_imagePickerVc);
         }

TZImagePickerController/ViewController.m

@@ -425,7 +425,6 @@
         if (mediaTypes.count) {
             _imagePickerVc.mediaTypes = mediaTypes;
         }
-        _imagePickerVc.modalPresentationStyle = UIModalPresentationOverCurrentContext;
         [self presentViewController:_imagePickerVc animated:YES completion:nil];
     } else {
         NSLog(@"模拟器中无法打开照相机,请在真机中使用");