YYXC_Student/jiaPei/LightingAndSoundVC.m

//
//  LightingAndSoundVC.m
//  jiaPei
//
//  Created by apple on 16/1/17.
//  Copyright © 2016年 JCZ. All rights reserved.
//

#import "LightingAndSoundVC.h"
#import "LightingCell.h"
#import <AVFoundation/AVFoundation.h>

@interface LightingAndSoundVC ()<UICollectionViewDataSource,UICollectionViewDelegate,UICollectionViewDelegateFlowLayout,AVAudioPlayerDelegate>
{
    UICollectionView *mainCollection;
    NSArray *lightTitle;
    NSArray *soundTitle;
    NSArray *imgArray;
    NSIndexPath *currentIndex;
    NSIndexPath *preIndex;
    AVAudioPlayer  *_player;
    LightingCell *currentCell;
    BOOL isExchange;
}
@end

@implementation LightingAndSoundVC

- (void)viewDidLoad {
    [super viewDidLoad];
    
    preIndex = [NSIndexPath indexPathForRow:-1 inSection:0];
    [self myInit];
}

-(void)myInit
{
    [self.view setBackgroundColor:backGroundColor];
    [self configNavigationBar];
    
    NSArray *segmentArray = [[NSArray alloc]initWithObjects:@"灯光模拟",@"语音模拟",nil];
    UISegmentedControl *segment = [[UISegmentedControl alloc] initWithItems:segmentArray];
    segment.selectedSegmentIndex = _styleTag - 4;
    segment.tintColor = [UIColor clearColor];
    
    NSDictionary *dic = [NSDictionary dictionaryWithObjectsAndKeys:defGreen,NSForegroundColorAttributeName,  [UIFont fontWithName:@"Helvetica" size:18.f],NSFontAttributeName ,nil];
    NSDictionary *dicNormol = [NSDictionary dictionaryWithObjectsAndKeys:[UIColor blackColor],NSForegroundColorAttributeName,  [UIFont fontWithName:@"Helvetica" size:18.f],NSFontAttributeName ,nil];
    [segment setTitleTextAttributes:dic forState:UIControlStateSelected];
    [segment setTitleTextAttributes:dicNormol forState:UIControlStateNormal];
    [segment addTarget:self action:@selector(Selectbutton:) forControlEvents:UIControlEventValueChanged];
    [self.navigationItem setTitleView:segment];
    
    //创建collection
    lightTitle = [[NSArray alloc] initWithObjects:@"灯光1",@"灯光2",@"灯光3",@"灯光4",@"灯光5",@"灯光6",@"灯光7",@"灯光8", nil];
    soundTitle = [[NSArray alloc] initWithObjects:@"考试准备",@"起步",@"路口直行",@"变更车道",@"公共汽车站",@"通过学校",@"直线行驶",@"路口左转",@"路口右转",@"百米加减档",@"会车",@"超车",@"减速",@"限速",@"人行横道",@"人行横道-有行人通过",@"隧道",@"掉头",@"靠边停车", nil];
    imgArray = [NSArray arrayWithObjects:@"img01",@"img02",@"img03",@"img04",@"img05",@"img06",@"img07",@"img08",@"img09",@"img10",@"img11",@"img12",@"img13",@"img14",@"img15",@"img16",@"img17",@"img18",@"img19", nil];
    
    
    UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
    layout.itemSize = CGSizeMake(kSize.width/4.0 - 8, kSize.width/4.0);
    layout.sectionInset = UIEdgeInsetsMake(1, 1, 1, 1);
    
    mainCollection = [[UICollectionView alloc] initWithFrame:kFrame collectionViewLayout:layout];
    mainCollection.height -= kNavOffSet;
    mainCollection.backgroundColor = backGroundColor;
    mainCollection.delegate   = self;
    mainCollection.dataSource = self;
    [self.view addSubview:mainCollection];
    
    [mainCollection registerClass:[LightingCell class] forCellWithReuseIdentifier:@"cell"];
}
#pragma mark     collectionView delegate
-(NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
{
    if (_styleTag == 4)
    {
        return lightTitle.count;
    }
    else
    {
        return soundTitle.count;
    }
}
-(UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
    LightingCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"cell" forIndexPath:indexPath];
    
    if (_styleTag == 4)
    {
        cell.titleLabel.text = lightTitle[indexPath.row];
        cell.imgView.image = [UIImage imageNamed:@"lighting"];
    }
    else
    {
        cell.titleLabel.text = soundTitle[indexPath.row];
        cell.imgView.image = [UIImage imageNamed:imgArray[indexPath.row]];
    }
    
    return cell;
}
-(void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath
{
    //先处理之前的cell动画视图
    if (preIndex != [NSIndexPath indexPathForRow:-1 inSection:0])
    {
        LightingCell *oldCell = (LightingCell *)[collectionView cellForItemAtIndexPath:preIndex];
        if (oldCell.imgView.subviews.count > 0)
        {
            [[oldCell.imgView.subviews firstObject] removeFromSuperview];
        }
        oldCell.isMySelected = NO;
    }
    currentIndex = indexPath;
    //判断是否是按得同一个按钮 如果不是 判断是否正在播放 处理后播放新的音频 如果是 判断是否在播放 是则停止
    if (isExchange)
    {
        isExchange = NO;
        preIndex = [NSIndexPath indexPathForRow:-1 inSection:0];
    }
    LightingCell *cell = (LightingCell *)[collectionView cellForItemAtIndexPath:indexPath];
    
    if (currentIndex.row != preIndex.row)
    {
        if (_player.isPlaying)
        {
            [_player stop];
            _player = nil;
        }
        NSString *resourceName;
        if (_styleTag == 4)
        {
            resourceName = [NSString stringWithFormat:@"light%d",(int)indexPath.row + 1];
        }
        else
        {
            resourceName = [NSString stringWithFormat:@"voice%d",(int)indexPath.row];
        }
        
        _player = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL
                                                                fileURLWithPath:[[NSBundle mainBundle] pathForResource:resourceName ofType:@"mp3"]] error:nil];
        _player.delegate = self;
        //设置音量大小 （0-1）
        _player.volume = 1.0;
        //设置播放速率
        _player.enableRate = YES;
        //0.5 慢一半  1.0 默认  2.0快
        _player.rate = 1.0;
        [_player play];
        
    }
    else
    {
        if (_player.isPlaying)
        {
            [_player stop];
            _player = nil;
            
            cell.isMySelected = 1;
        }
        else
        {
            NSString *resourceName;
            if (_styleTag == 4)
            {
                resourceName = [NSString stringWithFormat:@"light%d",(int)indexPath.row + 1];
            }
            else
            {
                resourceName = [NSString stringWithFormat:@"voice%d",(int)indexPath.row];
            }
            
            _player = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL
                                                                    fileURLWithPath:[[NSBundle mainBundle] pathForResource:resourceName ofType:@"mp3"]] error:nil];
            _player.delegate = self;
            //设置音量大小 （0-1）
            _player.volume = 1.0;
            //设置播放速率
            _player.enableRate = YES;
            //0.5 慢一半  1.0 默认  2.0快
            _player.rate = 1.0;
            [_player play];
        }

    }
    
    
    if (cell.isMySelected)
    {
        cell.isMySelected = NO;
        
        if (cell.imgView.subviews.count > 0)
        {
            [[cell.imgView.subviews firstObject] removeFromSuperview];
        }
        currentIndex = [NSIndexPath indexPathForRow:-1 inSection:0];
    }
    else
    {
        cell.isMySelected = YES;
        UIImageView *animationView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, cell.imgView.frame.size.width, cell.imgView.frame.size.height)];
        animationView.backgroundColor = [UIColor whiteColor];
        animationView.alpha = .8;
        //动画
        NSMutableArray *imgsArray = [NSMutableArray array];
        for (int i = 1; i < 4; i ++)
        {
            UIImage *img = [UIImage imageNamed:[NSString stringWithFormat:@"animate0%d",i]];
            [imgsArray addObject:img];
        }
        [animationView setAnimationImages:imgsArray];
        //动画持续时间
        [animationView setAnimationDuration:1];
        //循环次数  0代表无限
        [animationView setAnimationRepeatCount:0];
        [cell.imgView addSubview:animationView];
        //开始动画
        [animationView startAnimating];
    
        //记录当前cell
        currentCell = cell;
        
    }
    preIndex = currentIndex;
}
- (void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag
{
    if (currentCell.imgView.subviews.count > 0)
    {
        [[currentCell.imgView.subviews firstObject] removeFromSuperview];
    }
    currentIndex = [NSIndexPath indexPathForRow:-1 inSection:0];
    preIndex = [NSIndexPath indexPathForRow:-1 inSection:0];
    currentCell.isMySelected = NO;
    [_player stop];
    _player = nil;
}


-(void)Selectbutton:(UISegmentedControl *)segment
{
    if (_player.isPlaying)
    {
        [_player stop];
        _player = nil;
    }
    if (currentCell.imgView.subviews.count > 0)
    {
        [[currentCell.imgView.subviews firstObject] removeFromSuperview];
    }
    currentIndex = [NSIndexPath indexPathForRow:-1 inSection:0];
    preIndex = [NSIndexPath indexPathForRow:-1 inSection:0];
    currentCell.isMySelected = NO;
    
    self.styleTag = segment.selectedSegmentIndex + 4;
    isExchange = YES;
    [mainCollection reloadData];
}


- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}


@end