【代码笔记】钢琴小游戏

一，效果图。

二，工程图。

三，代码。

RootViewController.h

#import <UIKit/UIKit.h>
//加入头文件
#import <AudioToolbox/AudioToolbox.h>


@interface RootViewController : UIViewController { NSString *soundFile; } @end

 

RootViewController.m

#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.
}