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[操作系统]【代码笔记】钢琴小游戏


一,效果图。

二,工程图。

三,代码。

RootViewController.h

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#import <UIKit/UIKit.h>//加入头文件#import <AudioToolbox/AudioToolbox.h>@interface RootViewController : UIViewController{  NSString *soundFile;}@end
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RootViewController.m

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#import "RootViewController.h"@interface RootViewController ()@end@implementation RootViewController- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil{  self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];  if (self) {    // Custom initialization  }  return self;}- (void)viewDidLoad{  [super viewDidLoad];  // Do any additional setup after loading the view.    //初始化界面  [self addView];}#pragma -mark -fucntions-(void)addView{  NSArray *titleArray=[[NSArray alloc]initWithObjects:@"DO",@"RE",@"MI",@"FA",@"SO",@"LA",@"SI",@"C",@"D",@"E",@"F",@"G", nil];    for (int i=0; i<12; i++) {    UIButton *button=[[UIButton alloc]initWithFrame:CGRectMake(50, 80+30*i, 70, 20)];    [button setTitle:[titleArray objectAtIndex:i] forState:UIControlStateNormal];    [button addTarget:self action:@selector(doClickAction:) forControlEvents:UIControlEventTouchUpInside];    button.tag=i;    button.backgroundColor=[UIColor redColor];    [self.view addSubview:button];  }}-(void)playSound:(NSString*)soundKey{    NSString *path = [NSString stringWithFormat:@"%@%@",[[NSBundle mainBundle] resourcePath],soundKey];  SystemSoundID soundID;  NSURL *filePath = [NSURL fileURLWithPath:path isDirectory:NO];  AudioServicesCreateSystemSoundID((__bridge CFURLRef)filePath, &soundID);  AudioServicesPlaySystemSound(soundID);  }#pragma -makr -doClickActions-(void)doClickAction:(UIButton *)btn{  NSLog(@"---doClickActions--");  NSLog(@"--btn.tag---%ld",btn.tag);    if (btn.tag==0) {    soundFile = [NSString stringWithFormat:@"/001.mp3"];    [self playSound: soundFile];  }else if (btn.tag==1){    soundFile = [NSString stringWithFormat:@"/002.mp3"];    [self playSound: soundFile];  }else if (btn.tag==2){    soundFile = [NSString stringWithFormat:@"/003.mp3"];    [self playSound: soundFile];  }else if (btn.tag==3){    soundFile = [NSString stringWithFormat:@"/004.mp3"];    [self playSound: soundFile];  }else if (btn.tag==4){    soundFile = [NSString stringWithFormat:@"/005.mp3"];    [self playSound: soundFile];  }else if (btn.tag==5){    soundFile = [NSString stringWithFormat:@"/006.mp3"];    [self playSound: soundFile];  }else if (btn.tag==6){    soundFile = [NSString stringWithFormat:@"/007.mp3"];    [self playSound: soundFile];  }else if (btn.tag==7){    soundFile = [NSString stringWithFormat:@"/C.mp3"];    [self playSound: soundFile];  }else if (btn.tag==8){    soundFile = [NSString stringWithFormat:@"/D.mp3"];    [self playSound: soundFile];  }else if (btn.tag==9){    soundFile = [NSString stringWithFormat:@"/E.mp3"];    [self playSound: soundFile];  }else if (btn.tag==10){    soundFile = [NSString stringWithFormat:@"/F.mp3"];    [self playSound: soundFile];  }else if (btn.tag==11){    soundFile = [NSString stringWithFormat:@"/G.mp3"];    [self playSound: soundFile];  }}- (void)didReceiveMemoryWarning{  [super didReceiveMemoryWarning];  // Dispose of any resources that can be recreated.}
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