objective-c 多媒體 音樂播放

//

//  ViewController.m

//  音樂播放

//

//  Created by DC017 on 15/12/28.

//  Copyright © 2015年 DC017. All rights reserved.

//

#import "ViewController.h"

//引入音樂播放器框架

#import <AVFoundation/AVFoundation.h>

@interface ViewController ()<AVAudioPlayerDelegate>

@property(nonatomic,strong)AVAudioPlayer *audioPlayer;

@end

@implementation ViewController

- (void)viewDidLoad {

    [super viewDidLoad];

    [self.audioPlayer play];

    _audioPlayer.delegate=self;

    

}

//get方法

-(AVAudioPlayer *)audioPlayer{

    NSLog(@"get 方法被調用");

    if (!_audioPlayer) {

        NSLog(@"播放器準備啓動，開始實例化");

        //1獲取音樂文件路徑 注意：這裏獲取的時相對路經

        NSString * strurl=[[NSBundle mainBundle] pathForResource:@"逍遙嘆" ofType:@"mp3"];

        NSURL * url=[NSURL fileURLWithPath:strurl];

        //初始化音樂播放器

        NSError * error;

        _audioPlayer=[[AVAudioPlayer alloc]initWithContentsOfURL:url error:&error];

        //設置播放屬性

        _audioPlayer.numberOfLoops=0;//0表示爲不循環，負數表示爲無線循環

        //獲取總秒數duration

        NSLog(@"總秒數%f",_audioPlayer.duration);

         [_audioPlayer prepareToPlay];//加載音頻到緩存       

    }

    return _audioPlayer;

}

-(void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag{

    NSLog(@"音樂播放完成");

}

- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}

@end