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101 lines
3.0 KiB
Objective-C
101 lines
3.0 KiB
Objective-C
//
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// ViewController.m
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// Sample
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//
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// Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
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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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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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// FACEBOOK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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#import "ViewController.h"
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#import <AsyncDisplayKit/AsyncDisplayKit.h>
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#import "DetailViewController.h"
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@interface ViewController () <ASTableDataSource, ASTableDelegate>
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@property (nonatomic, copy) NSArray *imageCategories;
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@property (nonatomic, strong, readonly) ASTableNode *tableNode;
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@end
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@implementation ViewController
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#pragma mark - Lifecycle
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- (instancetype)init
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{
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self = [super initWithNode:[ASTableNode new]];
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if (self == nil) { return self; }
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_imageCategories = @[@"abstract", @"animals", @"business", @"cats", @"city", @"food", @"nightlife", @"fashion", @"people", @"nature", @"sports", @"technics", @"transport"];
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return self;
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}
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- (void)dealloc
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{
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self.node.delegate = nil;
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self.node.dataSource = nil;
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}
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#pragma mark - UIViewController
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- (void)viewDidLoad
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{
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[super viewDidLoad];
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self.title = @"Image Categories";
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self.node.delegate = self;
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self.node.dataSource = self;
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}
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- (void)viewWillAppear:(BOOL)animated
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{
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[super viewWillAppear:animated];
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[self.node deselectRowAtIndexPath:self.node.indexPathForSelectedRow animated:YES];
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}
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#pragma mark - ASTableDataSource / ASTableDelegate
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- (NSInteger)tableNode:(ASTableNode *)tableNode numberOfRowsInSection:(NSInteger)section
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{
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return self.imageCategories.count;
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}
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- (ASCellNodeBlock)tableNode:(ASTableNode *)tableNode nodeBlockForRowAtIndexPath:(NSIndexPath *)indexPath
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{
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// As the block is executed on a background thread we need to cache the image category string outside
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NSString *imageCategory = self.imageCategories[indexPath.row];
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return ^{
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ASTextCellNode *textCellNode = [ASTextCellNode new];
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textCellNode.text = [imageCategory capitalizedString];
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return textCellNode;
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};
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}
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- (void)tableNode:(ASTableNode *)tableNode didSelectRowAtIndexPath:(NSIndexPath *)indexPath
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{
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NSString *imageCategory = self.imageCategories[indexPath.row];
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DetailRootNode *detailRootNode = [[DetailRootNode alloc] initWithImageCategory:imageCategory];
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DetailViewController *detailViewController = [[DetailViewController alloc] initWithNode:detailRootNode];
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detailViewController.title = [imageCategory capitalizedString];
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[self.navigationController pushViewController:detailViewController animated:YES];
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}
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@end
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