Question

请帮助我，我厌倦了使用stackOverflow中的以下答案获得答案

我的代码是

- (IBAction)RecordBtnClicked:(UIButton *)sender {
if (sender.isSelected) {
    if (!recorder.recording) {
 [session setActive:YES error:nil];
        NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
        temporaryRecFile = [prefs URLForKey:@"Test1"];
        player = [[AVAudioPlayer alloc]initWithContentsOfURL:temporaryRecFile error:nil];
        player.delegate = self;
        player.volume = 1;
        [player prepareToPlay];
        [player play];
        [sender setSelected:false];
    }
    `[recordBtn setImage:[UIImage imageNamed:@"a_recordp.png"] forState:UIControlStateSelected];
    [recorder stop];
}`else{
    if (player.playing) {
        [player stop];
    }`
    if (!recorder.recording) {
        [recordBtn setImage:[UIImage imageNamed:@"a_records.png"] forState:UIControlStateSelected];
        NSString *documentPath = [pathComponent objectAtIndex:0];
        NSString *pathTosave =[documentPath stringByAppendingPathComponent:[self fileNameForRecording]];
        NSURL *url = [NSURL fileURLWithPath:pathTosave];
        NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
        [prefs setURL:url forKey:@"test1"];
        session = [AVAudioSession sharedInstance];
        [session setActive:YES error:Nil];
       // temporaryRecFile = [NSURL fileURLWithPath:[NSTemporaryDirectory() stringByDeletingLastPathComponent]];
        [recorder record];
        recordTimer = [NSTimer scheduledTimerWithTimeInterval:1 target:self selector:@selector(updateTimeInterval) userInfo:nil repeats:YES];
    }
    [sender setSelected:true];
    [discardBtn setHidden:false];
    [saveBtn setHidden:false];
}

}

我有一个按钮第一次点击录制开始和2点击相同的按钮录制停止，第三次点击相同的按钮我想播放相同的声音，但我没有得到所需的文件。

 temporaryRecFile = [prefs URLForKey:@"Test1"];

它给出零值？如果我以错误的方式编码，请为我提供一些建议吗？任何答案将不胜感激提前致谢

Answer 1

有时您无法依靠iOS来保存数据，您需要通过同步来强制执行此操作。

NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
[prefs setURL:url forKey:@"test1"];
[prefs synchronize]; //this will ensure it is written to the disk

我可以给你的一个建议是分割那个按钮功能，你在这个IBAction中做得太多了（记录，停止记录和游戏）。也许最好有两个按钮recordOrStop()和playOrStop()，但这只是我的观点，因为它可以避免问题。

如何将录制的音频保存到我的应用程序？

1 个答案: