【代码笔记】iOS-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.
}