音频播放\录音

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#import "ViewController.h"#import <MediaPlayer/MediaPlayer.h>#import <AVFoundation/AVFoundation.h>@interface ViewController ()- (IBAction)playLocation:(UIButton *)sender;- (IBAction)playOnline:(UIButton *)sender;- (IBAction)recordVoice:(UIButton *)sender;- (IBAction)playRecordVoice:(UIButton *)sender;@property (nonatomic,strong) MPMoviePlayerController * player;@property (nonatomic,strong) MPMoviePlayerViewController * mpMoviePlayer;@property (nonatomic,strong) AVAudioRecorder * recorder;@property (nonatomic,strong) NSString * recordVoiceFilePath;@end@implementation ViewController- (void)viewDidLoad {    [super viewDidLoad];    // Do any additional setup after loading the view, typically from a nib.    self.recordVoiceFilePath = [NSTemporaryDirectory() stringByAppendingString:@"TmpFile.aiff"];    NSLog(@"=======%@",self.recordVoiceFilePath);}- (void)didReceiveMemoryWarning {    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}- (IBAction)playLocation:(UIButton *)sender {    // 本地        [self.player stop];    NSString * path = [[NSBundle mainBundle] pathForResource:@"春天里" ofType:@"mp3"];    NSURL * url = [NSURL fileURLWithPath:path];    self.player = [[MPMoviePlayerController alloc] initWithContentURL:url];    [self.player play];    }- (IBAction)playOnline:(UIButton *)sender {    // 在线    [self.player stop];    NSString * path = [NSString stringWithFormat:@"http://202.204.208.83/gangqin/download/music/02/03/02/Track08.mp3"];    NSURL * url = [NSURL URLWithString:path];    self.player = [[MPMoviePlayerController alloc] initWithContentURL:url];    [self.player play];}- (IBAction)recordVoice:(UIButton *)sender {        sender.selected = !sender.isSelected;    if (sender.selected) {        // 录音        [sender setTitle:@"暂停" forState:UIControlStateNormal];        self.recorder = [[AVAudioRecorder alloc] initWithURL:[NSURL fileURLWithPath:self.recordVoiceFilePath] settings:@{AVNumberOfChannelsKey:@2,AVSampleRateKey:@44100,AVLinearPCMBitDepthKey:@32,AVEncoderAudioQualityKey:@(AVAudioQualityMax),AVEncoderBitRateKey:@128000} error:nil];        [self.recorder prepareToRecord];        [self.recorder record];    } else {        [sender setTitle:@"录音" forState:UIControlStateNormal];        [self.recorder stop];    }        }- (IBAction)playRecordVoice:(UIButton *)sender {    sender.selected = !sender.isSelected;    if (sender.selected) {        // 播放录音        [sender setTitle:@"暂停" forState:UIControlStateNormal];                [self.player stop];        NSURL * url = [NSURL fileURLWithPath:self.recordVoiceFilePath];        self.player = [[MPMoviePlayerController alloc] initWithContentURL:url];        [self.player play];            } else {        [sender setTitle:@"播放录音" forState:UIControlStateNormal];        [self.player stop];    }}
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