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+// 代码地址: https://github.com/CoderMJLee/MJRefresh
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+// 代码地址: http://code4app.com/ios/%E5%BF%AB%E9%80%9F%E9%9B%86%E6%88%90%E4%B8%8B%E6%8B%89%E4%B8%8A%E6%8B%89%E5%88%B7%E6%96%B0/52326ce26803fabc46000000
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+// MJHorizontalCollectionViewController.m
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+// MJRefreshExample
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+//
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+// Created by MJ Lee on 15/3/6.
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+// Copyright (c) 2015年 小码哥. All rights reserved.
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+//
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+
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+#import "MJHorizontalCollectionViewController.h"
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+#import "MJTestViewController.h"
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+#import "UIViewController+Example.h"
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+#import "MJRefresh.h"
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+
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+/**
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+ * 随机色
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+ */
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+#define MJRandomColor [UIColor colorWithRed:arc4random_uniform(255)/255.0 green:arc4random_uniform(255)/255.0 blue:arc4random_uniform(255)/255.0 alpha:1]
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+
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+@interface MJHorizontalCollectionViewController()
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+/** 存放假数据 */
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+@property (strong, nonatomic) NSMutableArray *colors;
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+@end
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+
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+@implementation MJHorizontalCollectionViewController
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+#pragma mark - 示例
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+#pragma mark UICollectionView 左拉刷新
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+
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+- (void)example42 {
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+ __weak __typeof(self) weakSelf = self;
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+
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+ // 左拉刷新
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+ self.collectionView.mj_trailer = [MJRefreshNormalTrailer trailerWithRefreshingBlock:^{
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+ MJTestViewController *test = [[MJTestViewController alloc] init];
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+ [weakSelf.navigationController pushViewController:test animated:YES];
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+ [weakSelf.collectionView.mj_trailer endRefreshing];
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+ }];
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+}
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+
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+#pragma mark - 数据相关
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+- (NSMutableArray *)colors {
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+ if (!_colors) {
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+ self.colors = [NSMutableArray array];
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+ for (int i = 0; i < 5; i++) {
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+ [self.colors addObject:MJRandomColor];
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+ }
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+ }
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+ return _colors;
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+}
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+
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+#pragma mark - 其他
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+
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+/**
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+ * 初始化
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+ */
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+- (instancetype)init {
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+ // UICollectionViewFlowLayout的初始化（与刷新控件无关）
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+ UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
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+ layout.itemSize = CGSizeMake(UIScreen.mainScreen.bounds.size.width, 200);
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+ layout.minimumInteritemSpacing = 0;
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+ layout.minimumLineSpacing = 0;
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+ layout.scrollDirection = UICollectionViewScrollDirectionHorizontal;
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+ return [self initWithCollectionViewLayout:layout];
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+}
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+
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+static NSString *const MJCollectionViewCellIdentifier = @"color";
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+
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+- (void)viewDidLoad {
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+ [super viewDidLoad];
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+
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+ self.view.backgroundColor = [UIColor whiteColor];
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+
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+ self.collectionView.frame = CGRectMake(0, 150, UIScreen.mainScreen.bounds.size.width, 200);
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+ self.collectionView.pagingEnabled = YES;
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+ self.collectionView.backgroundColor = [UIColor whiteColor];
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+
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+ MJPerformSelectorLeakWarning([self performSelector:NSSelectorFromString(self.method) withObject:nil];);
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+ [self.collectionView registerClass:[UICollectionViewCell class] forCellWithReuseIdentifier:MJCollectionViewCellIdentifier];
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+}
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+
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+#pragma mark - collection数据源代理
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+- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {
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+ return self.colors.count;
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+}
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+
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+- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
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+ UICollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:MJCollectionViewCellIdentifier forIndexPath:indexPath];
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+ cell.backgroundColor = self.colors[indexPath.row];
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+ return cell;
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+}
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+
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+- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {
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+ MJTestViewController *test = [[MJTestViewController alloc] init];
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+ if (indexPath.row % 2) {
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+ [self.navigationController pushViewController:test animated:YES];
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+ } else {
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+ UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:test];
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+ [self presentViewController:nav animated:YES completion:nil];
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+ }
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+}
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+@end
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Kinarobin