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Added alignment style for tab bar item title #53

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Added alignment style for tab bar item title #53

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10 changes: 10 additions & 0 deletions RDVTabBarController/RDVTabBarItem.h
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Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,11 @@

#import <UIKit/UIKit.h>

typedef NS_ENUM(NSUInteger, RDVTabBarItemTitleVericalAlignment) {
RDVTabBarItemTitleVericalAlignmentIconBottom,
RDVTabBarItemTitleVericalAlignmentViewBottom
};

@interface RDVTabBarItem : UIControl

/**
Expand Down Expand Up @@ -57,6 +62,11 @@
*/
@property (copy) NSDictionary *selectedTitleAttributes;

/*
* The alignment for title label
*/
@property (assign) RDVTabBarItemTitleVericalAlignment titleAlignment;

#pragma mark - Image configuration

/**
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22 changes: 20 additions & 2 deletions RDVTabBarController/RDVTabBarItem.m
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Original file line number Diff line number Diff line change
Expand Up @@ -66,6 +66,7 @@ - (void)commonInitialization {

_title = @"";
_titlePositionAdjustment = UIOffsetZero;
_titleAlignment = RDVTabBarItemTitleVericalAlignmentIconBottom;

if (NSFoundationVersionNumber > NSFoundationVersionNumber_iOS_6_1) {
_unselectedTitleAttributes = @{
Expand Down Expand Up @@ -96,7 +97,8 @@ - (void)drawRect:(CGRect)rect {
UIImage *backgroundImage = nil;
UIImage *image = nil;
CGFloat imageStartingY = 0.0f;

CGFloat titleStartingY = 0.0f;

if ([self isSelected]) {
image = [self selectedImage];
backgroundImage = [self selectedBackgroundImage];
Expand Down Expand Up @@ -143,9 +145,25 @@ - (void)drawRect:(CGRect)rect {

CGContextSetFillColorWithColor(context, [titleAttributes[NSForegroundColorAttributeName] CGColor]);

switch (self.titleAlignment) {
case RDVTabBarItemTitleVericalAlignmentIconBottom: {
titleStartingY = imageStartingY + imageSize.height + _titlePositionAdjustment.vertical;
break;
}
case RDVTabBarItemTitleVericalAlignmentViewBottom: {
static const CGFloat titleBottomOffset = 5.;
titleStartingY = frameSize.height - titleSize.height - titleBottomOffset;
break;
}
default: {
titleStartingY = imageStartingY + imageSize.height + _titlePositionAdjustment.vertical;
break;
}
}

[_title drawInRect:CGRectMake(roundf(frameSize.width / 2 - titleSize.width / 2) +
_titlePositionAdjustment.horizontal,
imageStartingY + imageSize.height + _titlePositionAdjustment.vertical,
titleStartingY,
titleSize.width, titleSize.height)
withAttributes:titleAttributes];
} else {
Expand Down