53 lines
1.7 KiB
Objective-C
53 lines
1.7 KiB
Objective-C
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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#import "RCTUIUtils.h"
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RCTDimensions RCTGetDimensions(CGFloat fontScale)
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{
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UIScreen *mainScreen = UIScreen.mainScreen;
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CGSize screenSize = mainScreen.bounds.size;
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RCTDimensions result;
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typeof (result.window) dims = {
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.width = screenSize.width,
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.height = screenSize.height,
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.scale = mainScreen.scale,
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.fontScale = fontScale
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};
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result.window = dims;
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result.screen = dims;
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return result;
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}
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CGFloat RCTGetMultiplierForContentSizeCategory(UIContentSizeCategory category)
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{
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static NSDictionary<NSString *, NSNumber *> *multipliers = nil;
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static dispatch_once_t token;
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dispatch_once(&token, ^{
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multipliers = @{
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UIContentSizeCategoryExtraSmall: @0.823,
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UIContentSizeCategorySmall: @0.882,
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UIContentSizeCategoryMedium: @0.941,
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UIContentSizeCategoryLarge: @1.0,
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UIContentSizeCategoryExtraLarge: @1.118,
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UIContentSizeCategoryExtraExtraLarge: @1.235,
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UIContentSizeCategoryExtraExtraExtraLarge: @1.353,
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UIContentSizeCategoryAccessibilityMedium: @1.786,
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UIContentSizeCategoryAccessibilityLarge: @2.143,
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UIContentSizeCategoryAccessibilityExtraLarge: @2.643,
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UIContentSizeCategoryAccessibilityExtraExtraLarge: @3.143,
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UIContentSizeCategoryAccessibilityExtraExtraExtraLarge: @3.571
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};
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});
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double value = multipliers[category].doubleValue;
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return value > 0.0 ? value : 1.0;
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}
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