录音指示器 案例一:

1.png

1..h文件

typedef NS_ENUM(NSInteger, subTitleStatues) {
    subTitleStatuesDefault,
    subTitleStatuesCancel,
};

@interface LCRecordingView : UIView
// 根据 状态更改 显示的内容
+ (void)subTitleLabelStatues:(subTitleStatues)statues;
+ (void)show;
+ (void)dismiss;
@end

2..m文件

@interface LCRecordingView ()
@property (assign, nonatomic) CGFloat angle;
@property (weak, nonatomic) UIImageView *bordImageView;
@property (weak, nonatomic) UILabel *centerLabel;
@property (weak, nonatomic) UILabel *titleLabel;
@property (weak, nonatomic) UILabel *subTitleLabel;
@property (assign, nonatomic) NSTimeInterval seconds;
@end

@implementation LCRecordingView

static LCRecordingView *recordingView;
static NSTimer *timer;

#pragma mark - lazy
- (UIImageView *)bordImageView
{
    if (!_bordImageView) {
        UIImageView *imageV = [[UIImageView alloc]initWithImage:[UIImage imageNamed:@"chat_bar_record_circle"]];
        _bordImageView = imageV;
        [self addSubview:_bordImageView];
    }
    
    return _bordImageView;
}

- (UILabel *)centerLabel
{
    if (!_centerLabel) {
        UILabel *label = [[UILabel alloc] init];
        label.text = @"60";
        label.font = [UIFont systemFontOfSize:28];
        label.textColor = [UIColor yellowColor];
        label.backgroundColor = [UIColor clearColor];
        label.textAlignment = NSTextAlignmentCenter;
        _centerLabel = label;
        [self addSubview:_centerLabel];
    }
    
    return _centerLabel;
}

- (UILabel *)titleLabel
{
    if (!_titleLabel) {
        UILabel *label = [[UILabel alloc] init];
        label.text = @"录音倒计时";
        label.textAlignment = NSTextAlignmentCenter;
        label.textColor = [UIColor whiteColor];
        label.font = [UIFont systemFontOfSize:16];
        _titleLabel = label;
        [self addSubview:_titleLabel];
    }
    
    return _titleLabel;
}

- (UILabel *)subTitleLabel
{
    if (!_subTitleLabel) {
        UILabel *label = [[UILabel alloc] init];
        label.text = @"松开发送语音";
        label.textAlignment = NSTextAlignmentCenter;
        label.textColor = [UIColor whiteColor];
        label.font = [UIFont systemFontOfSize:14];
        _subTitleLabel = label;
        [self addSubview:_subTitleLabel];
    }
    
    return _subTitleLabel;
}

#pragma mark - init
- (instancetype)initWithFrame:(CGRect)frame
{
    if (self = [super initWithFrame:frame]) {
        self.frame = [UIScreen mainScreen].bounds;
        self.backgroundColor = [[UIColor blackColor]colorWithAlphaComponent:0.4];
        
        [self bordImageView];
        [self centerLabel];
        [self subTitleLabel];
        [self titleLabel];
        
        timer = [NSTimer scheduledTimerWithTimeInterval:0.1 target:self selector:@selector(timerAction) userInfo:nil repeats:YES];
    }
    
    return self;
}

+ (void)subTitleLabelStatues:(subTitleStatues)statues
{
    [recordingView subTitleLabelStatues:statues];
}

- (void)subTitleLabelStatues:(subTitleStatues)statues
{
    switch (statues) {
        case subTitleStatuesDefault:
            self.subTitleLabel.text = @"松开发送语音";
            break;
        case subTitleStatuesCancel:
            self.subTitleLabel.text = @"松开手指,取消发送语音";
            break;
        default:
            break;
    }
}

- (void)timerAction
{
    self.angle -= 3;
    self.seconds ++ ;
    
    [UIView beginAnimations:nil context:nil];
    [UIView setAnimationDuration:0.09];
    UIView.AnimationRepeatAutoreverses = YES;
    self.bordImageView.transform = CGAffineTransformMakeRotation(self.angle * (M_PI / 180.0f));
    float second = [self.centerLabel.text floatValue];
    if (second <= 50.0f) {
        self.centerLabel.textColor = [UIColor redColor];
    }else{
        self.centerLabel.textColor = [UIColor yellowColor];
    }
    self.centerLabel.text = [NSString stringWithFormat:@"%.1fs",second-0.1];
    [UIView commitAnimations];
    if (second <= 0.1) {
        [self.class dismiss];
        [[NSNotificationCenter defaultCenter] postNotificationName:@"recordDUrationToolong" object:nil];
    }
}

+ (void)show
{
    LCRecordingView *rcView = [[LCRecordingView alloc] init];
    UIWindow *window = [UIApplication sharedApplication].windows.lastObject;
    recordingView = rcView;
    [window addSubview:recordingView];
}

+ (void)dismiss
{
    [timer invalidate];
    timer = nil;
    [recordingView removeFromSuperview];
}

- (void)layoutSubviews
{
    [super layoutSubviews];
    
    [self.bordImageView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.center.equalTo(self);
    }];
    
    [self.centerLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.width.equalTo(@(150));
        make.height.equalTo(@(40));
        make.center.equalTo(self);
    }];
    
    [self.subTitleLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.width.equalTo(self.centerLabel);
        make.height.equalTo(@(20));
        make.centerX.equalTo(self);
        make.centerY.equalTo(self).offset(50);
    }];
    
    [self.titleLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.size.equalTo(self.subTitleLabel);
        make.centerX.equalTo(self);
        make.centerY.equalTo(self).offset(-50);
    }];
}
@end

如何使用:

录音按钮的几种状态
[recordButton addTarget:self action:@selector(startRecord:) forControlEvents:UIControlEventTouchDown];
[recordButton addTarget:self action:@selector(endRecord:) forControlEvents:UIControlEventTouchUpInside];
[recordButton addTarget:self action:@selector(dragExitRecord:) forControlEvents:UIControlEventTouchDragExit];
[recordButton addTarget:self action:@selector(cancelRecord:) forControlEvents:UIControlEventTouchUpOutside];
[recordButton addTarget:self action:@selector(dragEnterRecord:) forControlEvents:UIControlEventTouchDragEnter];

// 1.开始录音
- (void)startRecord:(UIButton *)recordButton 
{
    [LCRecordingView show];
    [LCRecordingView subTitleLabelStatues:subTitleStatuesDefault];
}
// 2.结束录音
- (void)endRecord:(UIButton *)recordButton
 {
    [LCRecordingView dismiss];
    [LCRecordingView subTitleLabelStatues:subTitleStatuesDefault];
}
// 3.取消录音
- (void)cancelRecord:(UIButton *)recordButton
{
    [LCRecordingView dismiss];
    [LCRecordingView subTitleLabelStatues:subTitleStatuesDefault];
}

//4. 离开按钮范围
- (void)dragExitRecord:(UIButton *)recordButton
{
     [LCRecordingView subTitleLabelStatues:subTitleStatuesCancel];
}

//5. 移动回按钮范围
- (void)dragEnterRecord:(UIButton *)recordButton
{
     [LCRecordingView subTitleLabelStatues:subTitleStatuesCancel];
}

录音指示器 案例二:

2.png

思路大致都一样, 只是多了一个监听音量的变化
- (void)updateMeters{
    if ([TYHAudioRecorderUtil recorder]) {
        [[TYHAudioRecorderUtil recorder] updateMeters];
    }
    float peakPower = [[TYHAudioRecorderUtil recorder] averagePowerForChannel:0];
    double ALPHA = 0.05;
    double peakPowerForChannel = pow(10, (ALPHA * peakPower));
    
    self.indicatorView.value = peakPowerForChannel;
    if (self.indicatorView.phase == AudioRecordPhaseCancelling) {
        return;
    }
    self.indicatorView.phase = AudioRecordPhaseRecording;
    
    self.duration ++;
    if (self.duration * 0.1 > 50.0) {
        [self timeLabel];
        self.timeLabel.text = [NSString stringWithFormat:@"%.f", self.timeLabelText-- * 0.1];
//        self.angle -= 3;
//        [UIView beginAnimations:nil context:nil];
//        [UIView setAnimationDuration:0.09];
//        UIView.AnimationRepeatAutoreverses = YES;
//        self.timeLabel.transform = CGAffineTransformMakeRotation(self.angle * (M_PI / 180.0f));
//        [UIView commitAnimations];
    }
    if (self.duration * 0.1 > 60.0) {
        // 自动发送
        [[NSNotificationCenter defaultCenter] postNotificationName:@"recordDUrationToolong" object:nil];
    }
}