mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Valentin Shergin
2103839525
Summary: An experiment where we use `LayoutMetrics::overflowInset` to optimize performance of hit-testing algorithm. In my measurements enabling this feature drastically (2x) reduced amount of calls to `hitTest:withEvent:` method. Reviewed By: sammy-SC Differential Revision: D23669091 fbshipit-source-id: ac6dadc90b6a2fbb45e41e0d4a113bd5ae8f1218
57 lines
1.2 KiB
Objective-C
57 lines
1.2 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 "RCTConstants.h"
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NSString *const RCTUserInterfaceStyleDidChangeNotification = @"RCTUserInterfaceStyleDidChangeNotification";
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NSString *const RCTUserInterfaceStyleDidChangeNotificationTraitCollectionKey = @"traitCollection";
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/*
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* On-demand view mounting
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*/
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static BOOL RCTExperimentOnDemandViewMounting = NO;
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BOOL RCTExperimentGetOnDemandViewMounting()
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{
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return RCTExperimentOnDemandViewMounting;
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}
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void RCTExperimentSetOnDemandViewMounting(BOOL value)
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{
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RCTExperimentOnDemandViewMounting = value;
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}
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/*
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* Sync performance flag
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*/
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static BOOL RCTExperimentSyncPerformanceFlag = NO;
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BOOL RCTExperimentGetSyncPerformanceFlag()
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{
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return RCTExperimentSyncPerformanceFlag;
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}
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void RCTExperimentSetSyncPerformanceFlag(BOOL value)
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{
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RCTExperimentSyncPerformanceFlag = value;
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}
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/*
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* Optimized hit-testing
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*/
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static BOOL RCTExperimentOptimizedHitTesting = NO;
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BOOL RCTExperimentGetOptimizedHitTesting()
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{
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return RCTExperimentOptimizedHitTesting;
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}
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void RCTExperimentSetOptimizedHitTesting(BOOL value)
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{
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RCTExperimentOptimizedHitTesting = value;
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}
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