iOS开发拓展篇—音频处理（音乐播放器2）

 1 //
 2 //  YYMusicsViewController.m
 3 //
 4 
 5 #import "YYMusicsViewController.h"
 6 #import "YYMusicModel.h"
 7 #import "MJExtension.h"
 8 #import "YYMusicCell.h"
 9 #import "YYPlayingViewController.h"
10 
11 @interface YYMusicsViewController ()
12 @property(nonatomic,strong)NSArray *musics;
13 @property(nonatomic,strong)YYPlayingViewController *playingViewController;
14 @end
15 
16 @implementation YYMusicsViewController
17 #pragma mark-懒加载
18 -(NSArray *)musics
19 {
20     if (_musics==nil) {
21         _musics=[YYMusicModel objectArrayWithFilename:@"Musics.plist"];
22     }
23     return _musics;
24 }
25 -(YYPlayingViewController *)playingViewController
26 {
27     if (_playingViewController==nil) {
28         _playingViewController=[[YYPlayingViewController alloc]init];
29     }
30     return _playingViewController;
31 }

1 //  YYPlayingViewController.h
2 
3 #import <UIKit/UIKit.h>
4 
5 @interface YYPlayingViewController : UIViewController
6 //显示控制器
7 -(void)show;
8 @end

 1 //
 2 //  YYPlayingViewController.m
 3 //
 4 
 5 #import "YYPlayingViewController.h"
 6 
 7 @interface YYPlayingViewController ()
 8 - (IBAction)exit;
 9 
10 @end
11 
12 @implementation YYPlayingViewController
13 #pragma mark-公共方法
14 -(void)show
15 {
16     //1.禁用整个app的点击事件
17     UIWindow *window=[UIApplication sharedApplication].keyWindow;
18     window.userInteractionEnabled=NO;
19     
20     //2.添加播放界面
21     //设置View的大小为覆盖整个窗口
22     self.view.frame=window.bounds;
23     //设置view显示
24     self.view.hidden=NO;
25     //把View添加到窗口上
26     [window addSubview:self.view];
27     
28     //3.使用动画让View显示
29     self.view.y=self.view.height;
30     [UIView animateWithDuration:0.25 animations:^{
31         self.view.y=0;
32     } completion:^(BOOL finished) {
33         window.userInteractionEnabled=YES;
34     }];
35 }
36 #pragma mark-内部的按钮监听方法
37 //返回按钮
38 - (IBAction)exit {
39     //1.禁用整个app的点击事件
40     UIWindow *window=[UIApplication sharedApplication].keyWindow;
41     window.userInteractionEnabled=NO;
42     
43     //2.动画隐藏View
44     [UIView animateWithDuration:0.25 animations:^{
45         self.view.y=window.height;
46     } completion:^(BOOL finished) {
47         window.userInteractionEnabled=YES;
48         //设置view隐藏能够节省一些性能
49         self.view.hidden=YES;
50     }];
51 }
52 @end

 1 /**
 2  *  cell的点击事件
 3  */
 4 -(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
 5 {
 6     //取消选中被点击的这行
 7     [tableView deselectRowAtIndexPath:indexPath animated:YES];
 8     
 9     //调用公共方法
10     [self.playingViewController show];
11     
12 //    //执行segue跳转
13 //    [self performSegueWithIdentifier:@"music2playing" sender:nil];
14 }