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fix iPhoneX lt_setBackgroundColor OverlayHeight BUG; #72

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fix iPhoneX lt_setBackgroundColor OverlayHeight BUG; #72

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fd2be1d
fix iPhoneX lt_setBackgroundColor OverlayHeight BUG;
JeasonL Sep 15, 2017
669fabc
fix iOS12 lt_setBackgroundColor bug
JeasonL Sep 20, 2018
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24 changes: 14 additions & 10 deletions LTNavigationBar/UINavigationBar+Awesome.m
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Original file line number Diff line number Diff line change
Expand Up @@ -14,26 +14,31 @@
@implementation UINavigationBar (Awesome)
static char overlayKey;

- (UIView *)overlay
- (UIImage *)overlay
{
return objc_getAssociatedObject(self, &overlayKey);
}

- (void)setOverlay:(UIView *)overlay
- (void)setOverlay:(UIImage *)overlay
{
objc_setAssociatedObject(self, &overlayKey, overlay, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}

- (void)lt_setBackgroundColor:(UIColor *)backgroundColor
{
if (!self.overlay) {
[self setBackgroundImage:[UIImage new] forBarMetrics:UIBarMetricsDefault];
self.overlay = [[UIView alloc] initWithFrame:CGRectMake(0, 0, CGRectGetWidth(self.bounds), CGRectGetHeight(self.bounds) + 20)];
self.overlay.userInteractionEnabled = NO;
self.overlay.autoresizingMask = UIViewAutoresizingFlexibleWidth; // Should not set `UIViewAutoresizingFlexibleHeight`
[[self.subviews firstObject] insertSubview:self.overlay atIndex:0];
self.overlay = ({
CGRect rect = CGRectMake(0.0, 0.0, 1.0, 1.0);
UIGraphicsBeginImageContext(rect.size);
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, backgroundColor.CGColor);
CGContextFillRect(context, rect);
UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
image;
});
}
self.overlay.backgroundColor = backgroundColor;
[self setBackgroundImage:self.overlay forBarMetrics:UIBarMetricsDefault];
}

- (void)lt_setTranslationY:(CGFloat)translationY
Expand All @@ -53,7 +58,7 @@ - (void)lt_setElementsAlpha:(CGFloat)alpha

UIView *titleView = [self valueForKey:@"_titleView"];
titleView.alpha = alpha;
// when viewController first load, the titleView maybe nil
// when viewController first load, the titleView maybe nil
[[self subviews] enumerateObjectsUsingBlock:^(UIView *obj, NSUInteger idx, BOOL *stop) {
if ([obj isKindOfClass:NSClassFromString(@"UINavigationItemView")]) {
obj.alpha = alpha;
Expand All @@ -67,7 +72,6 @@ - (void)lt_setElementsAlpha:(CGFloat)alpha
- (void)lt_reset
{
[self setBackgroundImage:nil forBarMetrics:UIBarMetricsDefault];
[self.overlay removeFromSuperview];
self.overlay = nil;
}

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