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Node init performance: Use share instances of UIColor and NSAttributedString for defaults.

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Ethan Nagel
2015-08-17 12:23:25 -07:00
parent 3983bf2289
commit f7fb6dc4e7
3 changed files with 30 additions and 2 deletions
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19
AsyncDisplayKit/ASDisplayNodeExtras.mm
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@@ -126,7 +126,24 @@ extern id ASDisplayNodeFindFirstSubnodeOfClass(ASDisplayNode *start, Class c)
UIColor *ASDisplayNodeDefaultPlaceholderColor()
{
return [UIColor colorWithWhite:0.95 alpha:1.0];
static UIColor *defaultPlaceholderColor;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
defaultPlaceholderColor = [UIColor colorWithWhite:0.95 alpha:1.0];
});
return defaultPlaceholderColor;
}
UIColor *ASDisplayNodeDefaultTintColor()
{
static UIColor *defaultTintColor;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
defaultTintColor = [UIColor colorWithRed:0.0 green:0.478 blue:1.0 alpha:1.0];
});
return defaultTintColor;
}
#pragma mark - Hierarchy Notifications