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MXAbstractTabBarController.m
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MXAbstractTabBarController.m
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//
// TabViewController.m
// Runner
//
// Created by pepsin on 2020/6/8.
//
#import "MXAbstractTabBarController.h"
#import "MXContainerViewController.h"
#import "MXStackExchange.h"
#import "MixStackPlugin.h"
#import "UIViewController+FlutterViewHint.h"
@import Flutter;
@interface MXAbstractTabBarController () <UITabBarControllerDelegate>
@property (nonatomic, readonly) NSInteger index;
@property (nonatomic, assign) BOOL needsRefreshTabs;
@end
@implementation MXAbstractTabBarController
- (void)setViewControllers:(NSArray<__kindof UIViewController *> *)viewControllers {
[super setViewControllers:viewControllers];
[self updateFlutterViewControllerInsets];
}
- (void)updateFlutterViewControllerInsets {
for (UIViewController *vc in self.viewControllers) {
if (@available(iOS 11.0, *)) {
if (vc.containsFlutter) {
vc.additionalSafeAreaInsets = [[self ignoreSafeareaInsetsConfig] ignoreSafeareaInsetsForOverlayHandler:self];
[vc viewSafeAreaInsetsDidChange];
}
}
}
}
#pragma mark MXOverlayHandlerProtocol
- (NSArray<NSString *> *)overlayNames {
return @[ @"navigationBar", @"tabBar" ];
}
- (UIView *)overlayView:(NSString *)name {
if ([name isEqualToString:@"navigationBar"]) {
return self.navigationController.navigationBar;
}
if ([name isEqualToString:@"tabBar"]) {
return self.tabBar;
}
NSAssert(false, @"This should not be nil");
return nil;
}
- (NSDictionary<NSString *, UIView *> *)overlayViewsForNames:(NSArray<NSString *> *)overlayNames {
NSMutableDictionary *views = [NSMutableDictionary dictionary];
for (NSString *name in overlayNames) {
UIView *view = [self overlayView:name];
if (view != nil) {
views[name] = view;
}
}
return views;
}
- (NSArray<UIView *> *)overlayViews {
return [self overlayViewsForNames:[self overlayNames]].allValues;
}
- (UIViewController *)flutterContainerViewController {
return [self selectedViewController];
}
- (void)configOverlay:(NSDictionary<NSString *, MXViewConfig *> *)overlayNames completion:(void (^)(void))completion {
NSArray<NSString *> *names = overlayNames.allKeys;
typedef void (^viewSettingBlock)(UIView *view, MXViewConfig *obj, NSString *key);
viewSettingBlock settingBlock = ^void(UIView *view, MXViewConfig *obj, NSString *key) {
view.hidden = obj.hidden;
view.alpha = obj.alpha;
if ([names indexOfObject:key] == (names.count - 1)) {
if (completion) {
completion();
if ([self selectedViewController].viewLoaded) {
[[self selectedViewController].view setNeedsLayout];
if ([self selectedViewController].childViewControllers.count > 0) {
for (UIViewController *vc in [self selectedViewController].childViewControllers) {
if (vc.viewLoaded) {
[vc.view setNeedsLayout];
}
}
}
}
}
}
};
for (NSString *key in names) {
MXViewConfig *obj = [overlayNames objectForKey:key];
UIView *view = [self overlayView:key];
if (obj.needsAnimation) {
if (obj.alpha < view.alpha) {
[UIView animateWithDuration:0.15 animations:^{
view.alpha = obj.alpha;
} completion:^(BOOL finished) {
settingBlock(view, obj, key);
}];
} else {
view.hidden = NO;
[UIView animateWithDuration:0.15 animations:^{
view.alpha = obj.alpha;
} completion:^(BOOL finished) {
settingBlock(view, obj, key);
}];
}
} else {
settingBlock(view, obj, key);
}
};
}
- (MXIgnoreSafeAreaInsetsConfig *)ignoreSafeareaInsetsConfig {
return [[MXIgnoreSafeAreaInsetsConfig alloc] initWithTopNames:nil leftNames:nil bottomNames:@[ @"tabBar" ] rightNames:nil];
}
@end