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IGListKit简单入门 CCIGListKitDemo 例子

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简单IGListKit入门

简单滴框架示意图

CCIGListKitSimpleFramework.png

代码逻辑

数据项 DemoItem实现 IGListDiffable

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- (nonnull id<NSObject>)diffIdentifier {
    return _name;
}

- (BOOL)isEqualToDiffableObject:(nullable id<IGListDiffable>)object {
    if (self == object) {
        return YES;
    }
    
    DemoItem *item = (DemoItem *)object;
    
    return _controllerClass == item.controllerClass && _controllerIdentifier == item.controllerIdentifier;
}

数据列表

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- (NSArray *)demos {
    if (!_demos) {
        _demos = @[
                   [[DemoItem alloc] initWithName:@"Tail Loading" controllerClass: @"LoadMoreViewController"],
                   [[DemoItem alloc] initWithName:@"Search Autocomplete" controllerClass: @"SearchViewController"],
                   [[DemoItem alloc] initWithName:@"Mixed Data" controllerClass: @"MixedDataViewController"],
                   [[DemoItem alloc] initWithName:@"Nested Adapter" controllerClass: @"NestedAdapterViewController"],
                   [[DemoItem alloc] initWithName:@"Empty View" controllerClass: @"EmptyViewController"],
                   [[DemoItem alloc] initWithName:@"Single Section Controller" controllerClass: @"SingleSectionViewController"],
                   [[DemoItem alloc] initWithName:@"Storyboard" controllerClass: @"SingleSectionViewController" controllerIdentifier: @"demo"],
                   [[DemoItem alloc] initWithName:@"Single Section Storyboard" controllerClass: @"SingleSectionStoryboardViewController" controllerIdentifier: @"singleSectionDemo"],
                   [[DemoItem alloc] initWithName:@"Working Range" controllerClass: @"WorkingRangeViewController"],
                   [[DemoItem alloc] initWithName:@"Diff Algorithm" controllerClass: @"DiffTableViewController"],
                   [[DemoItem alloc] initWithName:@"Supplementary Views" controllerClass: @"SupplementaryViewController"],
                   [[DemoItem alloc] initWithName:@"Self-sizing cells" controllerClass: @"SelfSizingCellsViewController"],
                   [[DemoItem alloc] initWithName:@"Display delegate" controllerClass: @"DisplayViewController"],
                   [[DemoItem alloc] initWithName:@"Stacked Section Controllers" controllerClass: @"StackedViewController"],
                   [[DemoItem alloc] initWithName:@"Objc Demo" controllerClass: @"ObjcDemoViewController"],
                   [[DemoItem alloc] initWithName:@"Objc Generated Model Demo" controllerClass: @"ObjcGeneratedModelDemoViewController"],
                   [[DemoItem alloc] initWithName:@"Calendar (auto diffing)" controllerClass: @"CalendarViewController"],
                   [[DemoItem alloc] initWithName:@"Dependency Injection" controllerClass: @"AnnouncingDepsViewController"],
                   [[DemoItem alloc] initWithName:@"Reorder Cells" controllerClass: @"ReorderableViewController"],
                   [[DemoItem alloc] initWithName:@"Reorder Stacked Section Controllers" controllerClass: @"ReorderableStackedViewController"],
                   ];
    }
    
    return _demos;
}

绑定数据列表

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- (NSArray<id <IGListDiffable>> *)objectsForListAdapter:(IGListAdapter *)listAdapter {
    return self.demos;
}

绑定IGListSectionController

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- (IGListSectionController *)listAdapter:(IGListAdapter *)listAdapter sectionControllerForObject:(id)object {
    return [DemoSectionController new];
}

- (nullable UIView *)emptyViewForListAdapter:(IGListAdapter *)listAdapter {
    return nil;
}

adapter 与 collectionView 关联

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self.adapter.collectionView = self.collectionView;
self.adapter.dataSource = self;

DemoSectionController 关联 cell

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- (CGSize)sizeForItemAtIndex:(NSInteger)index {
    return CGSizeMake(self.collectionContext.containerSize.width, 55);
}

- (UICollectionViewCell *)cellForItemAtIndex:(NSInteger)index {
    LabelCell *cell = [self.collectionContext dequeueReusableCellOfClass:[LabelCell class] forSectionController:self atIndex:index];
    cell.text = self.item.name;
    
    return cell;
}

- (void)didUpdateToObject:(id)object {
    self.item = object;
}

- (void)didSelectItemAtIndex:(NSInteger)index {
    NSString *classString = self.item.controllerClass;
    NSString *controllerIdentifier = self.item.controllerIdentifier;
    CCDebugPrint(classString);
    
    UIViewController *vc = nil;
    if (controllerIdentifier) {
        UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Demo" bundle: nil];
        vc = [storyboard instantiateViewControllerWithIdentifier:controllerIdentifier];
    } else {
        vc = [NSClassFromString(classString) new];
    }
    
    if (vc) {
        vc.title = self.item.name;
        [self.viewController.navigationController pushViewController:vc animated: NO];
    } else {
        CCDebugWarningPrint([NSString stringWithFormat:@"%@ : [The interface may not be implemented] ", classString]);
    }
}

更多细节

查查看CCIGListKitDemo

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