mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Valentin Shergin
28e9528c4d
Summary: Fabric has a feature that preallocates views before mounting even need them. We never tested the impact of this feature thought. This diff adds a way to enable/disable it and run an experiment. Changelog: [Internal] Fabric-specific internal change. Reviewed By: JoshuaGross Differential Revision: D24355612 fbshipit-source-id: fefd653e57232044cd7b28b160e12a4ef85dbb8b
37 lines
1.3 KiB
Objective-C
37 lines
1.3 KiB
Objective-C
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#import <React/RCTDefines.h>
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RCT_EXTERN NSString *const RCTUserInterfaceStyleDidChangeNotification;
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RCT_EXTERN NSString *const RCTUserInterfaceStyleDidChangeNotificationTraitCollectionKey;
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/*
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* Allows to enable or disable on-demand view mounting feature of ScrollView.
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* It's an experimental feature that improves performance and memory footprint of huge lists inside ScrollView.
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*/
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RCT_EXTERN BOOL RCTExperimentGetOnDemandViewMounting(void);
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RCT_EXTERN void RCTExperimentSetOnDemandViewMounting(BOOL value);
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/*
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* Allows to some performance flags to report data synchronously right after the mounting transaction finishes.
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*/
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RCT_EXTERN BOOL RCTExperimentGetSyncPerformanceFlag(void);
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RCT_EXTERN void RCTExperimentSetSyncPerformanceFlag(BOOL value);
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/*
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* It's an experimental feature that improves performance of hit-testing.
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*/
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RCT_EXTERN BOOL RCTExperimentGetOptimizedHitTesting(void);
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RCT_EXTERN void RCTExperimentSetOptimizedHitTesting(BOOL value);
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/*
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* Preemptive View Allocation
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*/
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RCT_EXTERN BOOL RCTExperimentGetPreemptiveViewAllocationDisabled(void);
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RCT_EXTERN void RCTExperimentSetPreemptiveViewAllocationDisabled(BOOL value);
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