Swiftgram/AsyncDisplayKit/AsyncDisplayKit+Debug.h

23 lines
772 B
Objective-C

//
// AsyncDisplayKit+Debug.h
// AsyncDisplayKit
//
// Created by Hannah Troisi on 3/7/16.
// Copyright © 2016 Facebook. All rights reserved.
//
#import <Foundation/Foundation.h>
#import "ASImageNode.h"
@interface ASImageNode (Debugging)
/**
* Enables an ASImageNode debug label that shows the ratio of pixels in the source image to those in
* the displayed bounds (including cropRect). This helps detect excessive image fetching / downscaling,
* as well as upscaling (such as providing a URL not suitable for a Retina device). For dev purposes only.
* @param enabled Specify YES to show the label on all ASImageNodes with non-1.0x source-to-bounds pixel ratio.
*/
+ (void)setShouldShowImageScalingOverlay:(BOOL)show;
+ (BOOL)shouldShowImageScalingOverlay;
@end