我无法通过带定时器的 circularProgressBar 长按按钮录制音频。启动应用程序时按钮被禁用

Question

---你好，我是 objective C 的新手。我无法在按下下面列出的 buttonTapped 方法时录制音频 - buttontapped 在应用程序启动时被禁用，因此我无法录制，因此我无法播放录制的声音。请指导这个。

--这是我的文件。

-- 我从 github 导入了两个 CircularProgressBarTimer 文件，并将这些文件导入到 .h 文件中。

----这是我的.h文件

@interface ViewController : UIViewController<AVAudioRecorderDelegate,AVAudioPlayerDelegate,UIGestureRecognizerDelegate>{
    NSTimer *timer;
    NSInteger globalTimer;
    NSInteger counter;
    NSInteger minutesLeft;
    NSInteger secondsLeft;
    UIRefreshControl *refreshControl;
    CircularProgressTimer *progressTimerView;
}
@property (weak, nonatomic) IBOutlet UIButton *buttonRecord;
@property (strong, nonatomic) IBOutlet UILongPressGestureRecognizer *longpressGesture;
@property (weak, nonatomic) IBOutlet CircularProgressTimer *circularProgressView;

- (IBAction)buttonTapped:(id)sender;
-(void)longPressed:(UIGestureRecognizer *)longPress;

这是我的 .m 文件

@interface ViewController (){
    AVAudioRecorder *recorder;
    AVAudioPlayer *player;

}

@end

--在我的 viewDidLoad 方法中，我初始化了音频播放器 Longesturerecognizer

@implementation ViewController
@synthesize buttonRecord;
@synthesize longpressGesture;
@synthesize circularProgressView;
- (void)viewDidLoad {
    [super viewDidLoad];


    UILongPressGestureRecognizer *gesture1 = [[UILongPressGestureRecognizer alloc]initWithTarget:self action:@selector(longPressed:)];
    gesture1.delegate =self;
    [gesture1 setMinimumPressDuration:(NSTimeInterval)10];
    [self.buttonRecord addGestureRecognizer:gesture1];

    //Set the audio file
    NSArray *pathComponents =[NSArray arrayWithObjects:[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)lastObject],@"MyAudioDemo.m4a", nil];
    NSURL *outputFileURL =[NSURL fileURLWithPathComponents:pathComponents];


    //Set the audio Session
    AVAudioSession *session = [AVAudioSession sharedInstance];
    [session setCategory:AVAudioSessionCategoryPlayAndRecord error:nil];

    //Define the recorder Setting
    NSMutableDictionary *recordSetting = [[NSMutableDictionary alloc]init];
    [recordSetting setValue:[NSNumber numberWithInt:kAudioFormatMPEG4AAC] forKey:AVFormatIDKey];
    [recordSetting setValue:[NSNumber numberWithFloat:44100.0] forKey:AVSampleRateKey];
    [recordSetting setValue:[NSNumber numberWithInt:2] forKey:AVNumberOfChannelsKey];
    [recordSetting setValue :[NSNumber numberWithInt:16] forKey:AVLinearPCMBitDepthKey];
    [recordSetting setValue :[NSNumber numberWithBool:NO] forKey:AVLinearPCMIsBigEndianKey];
    [recordSetting setValue :[NSNumber numberWithBool:NO] forKey:AVLinearPCMIsFloatKey];
    //Initiate and prepare the recorder
    recorder=[[AVAudioRecorder alloc]initWithURL:outputFileURL settings:recordSetting error:nil];
    recorder.delegate=self;
    recorder.meteringEnabled =YES;
    [recorder prepareToRecord];
    //Disable play button when application launches
    [buttonRecord setEnabled:NO];
}

---而且我已经定义了关于大小分配的循环进度条方法。

- (void)drawCircularProgressBarWithMinutesLeft:(NSInteger)minutes secondsLeft:(NSInteger)seconds
{
    // Removing unused view to prevent them from stacking up
    for (id subView in [self.view subviews]) {
        if ([subView isKindOfClass:[CircularProgressTimer class]]) {
            [subView removeFromSuperview];
        }
    }

    // Init our view and set current circular progress bar value
    CGRect progressBarFrame = CGRectMake(0, 0, 180, 180);
    progressTimerView = [[CircularProgressTimer alloc] initWithFrame:progressBarFrame];
    [progressTimerView setCenter:CGPointMake(160, 210)];
    [progressTimerView setPercent:seconds];
    if (/*minutes == 0 &&*/ seconds == 0) {
        [progressTimerView setInstanceColor:[UIColor redColor]];
    }

    // Here, setting the minutes left before adding it to the parent view
    //[progressTimerView setMinutesLeft:minutesLeft];
    [progressTimerView setSecondsLeft:secondsLeft];
    [self.view addSubview:progressTimerView];
    progressTimerView = nil;
}

- (void)startTimer
{
    timer = [NSTimer scheduledTimerWithTimeInterval:1.0
                                             target:self
                                           selector:@selector(updateCircularProgressBar)
                                           userInfo:nil
                                            repeats:YES];
}

- (void)updateCircularProgressBar
{
    // Values to be passed on to Circular Progress Bar
    if (globalTimer > 0 && globalTimer <= 1200) {
        globalTimer--;
        // minutesLeft = globalTimer / 60;
        secondsLeft = globalTimer % 43;

        [self drawCircularProgressBarWithMinutesLeft:minutesLeft secondsLeft:secondsLeft];
        NSLog(@"Time left:%02ld", (long)secondsLeft);
    } else {
        [self drawCircularProgressBarWithMinutesLeft:0 secondsLeft:0];
        [timer invalidate];
    }
}



- (void)remoteControlReceivedWithEvent:(UIEvent *)event{
    switch (event.subtype) {
        case UIEventSubtypeRemoteControlPause:
            [self.circularProgressView pause];
                       break;
        case UIEventSubtypeRemoteControlPlay:
            [self.circularProgressView play];

                    default:
            break;
    }
}

- (BOOL)shouldAutorotate{
    return YES;
}

----我知道我在 buttonRecord 事件中做错了代码。但是当我调试应用程序时，按钮被禁用并且无法按下。请指导我，我将不胜感激。

- (IBAction)buttonTapped:(id)sender {
    if (player.playing) {
        [player stop];
    }

    if (!recorder.recording) {
        AVAudioSession *session = [AVAudioSession sharedInstance];
        [session setActive:YES error:nil];

        // Start recording
        [recorder record];
        [buttonRecord setTitle:@"Pause" forState:UIControlStateNormal];

    } else {

        // Pause recording
        [recorder pause];
        [buttonRecord setTitle:@"Record" forState:UIControlStateNormal];
    }

    //[stopButton setEnabled:YES];
    [_playButton setEnabled:NO];
    timer = [NSTimer scheduledTimerWithTimeInterval:1.0
                                             target:self
                                           selector:@selector(updateCircularProgressBar)
                                           userInfo:nil
                                            repeats:YES];

    NSLog(@"playTapped");
    if (!recorder.recording) {
        player =[[AVAudioPlayer alloc]initWithContentsOfURL:recorder.url error:nil];
        //[player setDelegate:self];
        [buttonRecord setEnabled:YES];
        [recorder recordForDuration:(NSTimeInterval)10];
        [recorder record];


}
}
- (IBAction)playbuttontTapped:(id)sender {
    if (!recorder.recording){
        player = [[AVAudioPlayer alloc] initWithContentsOfURL:recorder.url error:nil];
        [player setDelegate:self];
        [player play];
    }}

Answer 1

你 viewDidLoad 中的最后一行导致你的记录按钮被禁用，你为什么要添加这个 [buttonRecord setEnabled:NO];

您可以尝试将其更改为 [buttonRecord setEnabled:YES]; 或完全删除该行

我无法通过带定时器的 circularProgressBar 长按按钮录制音频。启动应用程序时按钮被禁用

I am not able to record audio by longpress button with circularProgressBar with timer. button is disabled while launch of application

objective-c

audio-recording

ios