91 lines
2.6 KiB
Objective-C
91 lines
2.6 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 "RCTTabBarItem.h"
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#import "RCTConvert.h"
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#import "RCTLog.h"
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#import "UIView+React.h"
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@implementation RCTTabBarItem
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@synthesize barItem = _barItem;
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- (UITabBarItem *)barItem
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{
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if (!_barItem) {
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_barItem = [UITabBarItem new];
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}
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return _barItem;
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}
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- (void)setIcon:(id)icon
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{
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static NSDictionary *systemIcons;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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systemIcons = @{
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@"bookmarks": @(UITabBarSystemItemBookmarks),
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@"contacts": @(UITabBarSystemItemContacts),
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@"downloads": @(UITabBarSystemItemDownloads),
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@"favorites": @(UITabBarSystemItemFavorites),
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@"featured": @(UITabBarSystemItemFeatured),
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@"history": @(UITabBarSystemItemHistory),
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@"more": @(UITabBarSystemItemMore),
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@"most-recent": @(UITabBarSystemItemMostRecent),
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@"most-viewed": @(UITabBarSystemItemMostViewed),
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@"recents": @(UITabBarSystemItemRecents),
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@"search": @(UITabBarSystemItemSearch),
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@"top-rated": @(UITabBarSystemItemTopRated),
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};
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});
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// Update icon
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BOOL wasSystemIcon = (systemIcons[_icon] != nil);
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_icon = [icon copy];
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// Check if string matches any custom images first
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UIImage *image = [RCTConvert UIImage:_icon];
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UITabBarItem *oldItem = _barItem;
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if (image) {
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// Recreate barItem if previous item was a system icon. Calling self.barItem
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// creates a new instance if it wasn't set yet.
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if (wasSystemIcon) {
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_barItem = nil;
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self.barItem.image = image;
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} else {
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self.barItem.image = image;
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return;
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}
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} else if ([icon isKindOfClass:[NSString class]] && [icon length] > 0) {
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// Not a custom image, may be a system item?
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NSNumber *systemIcon = systemIcons[icon];
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if (!systemIcon) {
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RCTLogError(@"The tab bar icon '%@' did not match any known image or system icon", icon);
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return;
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}
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_barItem = [[UITabBarItem alloc] initWithTabBarSystemItem:systemIcon.integerValue tag:oldItem.tag];
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} else {
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self.barItem.image = nil;
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}
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// Reapply previous properties
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_barItem.title = oldItem.title;
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_barItem.imageInsets = oldItem.imageInsets;
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_barItem.selectedImage = oldItem.selectedImage;
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_barItem.badgeValue = oldItem.badgeValue;
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}
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- (UIViewController *)reactViewController
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{
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return self.superview.reactViewController;
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}
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@end
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