record.gif
//
// ViewController.m
// VoiceMessage
//
// Created by 李伟宾 on 2017/11/28.
// Copyright © 2017年 liweibin. All rights reserved.
//
#import "ViewController.h"
#import <AVFoundation/AVFoundation.h>
@interface ViewController ()
{
UIButton *_recordButton; //开始录音
UIButton *_playRecordButton; //播放录音
UIView *_volumeBgView; //音量背景视图
UIImageView *_volumeImageView; //音量图片
UILabel *_volumeLabel; //提示文字
NSTimer *_timer; //定时器
NSInteger _countDown; //倒计时,最多60秒
AVAudioSession *_session;
AVAudioRecorder *_recorder; //录音器
AVAudioPlayer *_player; //音频播放器
NSString *_recordFilePath; //录音文件沙盒地址
BOOL _isLeaveSpeakBtn; //是否上滑
}
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
self.view.backgroundColor = [UIColor whiteColor];
_recordButton = [UIButton buttonWithType:UIButtonTypeCustom];
_recordButton.frame = CGRectMake(50 , 100, 300 , 50);
[_recordButton setImage:[UIImage imageNamed:@"press_for_audio"] forState:UIControlStateNormal];
[_recordButton setImage:[UIImage imageNamed:@"press_for_audio_down"] forState:UIControlStateHighlighted];
[_recordButton addTarget:self action:@selector(recordButtonTouchDown) forControlEvents:UIControlEventTouchDown];
[_recordButton addTarget:self action:@selector(recordButtonTouchUpInside) forControlEvents:UIControlEventTouchUpInside];
[_recordButton addTarget:self action:@selector(recordButtonTouchUpOutside) forControlEvents:UIControlEventTouchUpOutside];
[_recordButton addTarget:self action:@selector(recordButtonTouchUpDragExit) forControlEvents:UIControlEventTouchDragExit];
[_recordButton addTarget:self action:@selector(recordButtonTouchUpDragEnter) forControlEvents:UIControlEventTouchDragEnter];
[self.view addSubview:_recordButton];
_playRecordButton = [UIButton buttonWithType:UIButtonTypeSystem];
_playRecordButton.frame = CGRectMake(50 , 200, 300 , 50);
[_playRecordButton setTitle:@"播放录音" forState:UIControlStateNormal];
[_playRecordButton addTarget:self action:@selector(playRecordButtonTouchUpInside) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:_playRecordButton];
}
- (void)playRecordButtonTouchUpInside {
if (_recordFilePath) {
_player = [[AVAudioPlayer alloc] initWithData:[NSData dataWithContentsOfFile:_recordFilePath] error:nil];
[_session setCategory:AVAudioSessionCategoryPlayback error:nil];
[_player play];
}
}
//摁住说话
- (void)recordButtonTouchDown {
//info.plist配置权限
if (![self canRecord]) {
NSLog(@"请启用麦克风-设置/隐私/麦克风");
}
//禁止其它按钮交互
[self setupUserEnabled:NO];
//音量视图
if (_volumeBgView) {
[_volumeBgView removeFromSuperview];
_volumeBgView = nil;
}
CGFloat viewWidth = self.view.frame.size.width/2.5;
_volumeBgView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, viewWidth, viewWidth+20)];
_volumeBgView.center = self.view.center;
_volumeBgView.backgroundColor = [[UIColor blackColor] colorWithAlphaComponent:0.5];
_volumeBgView.layer.cornerRadius = 10;
[self.view addSubview:_volumeBgView];
_volumeImageView = [[UIImageView alloc] initWithFrame:CGRectMake(15, 10, viewWidth - 30, viewWidth - 30)];
_volumeImageView.image = [UIImage imageNamed:@"voice_1"];
[_volumeBgView addSubview:_volumeImageView];
_volumeLabel = [[UILabel alloc] init];
_volumeLabel.frame = CGRectMake(5, viewWidth - 10, viewWidth-10, 25);
_volumeLabel.font = [UIFont systemFontOfSize:14];
_volumeLabel.layer.masksToBounds = YES;
_volumeLabel.layer.cornerRadius = 5;
_volumeLabel.textAlignment = NSTextAlignmentCenter;
_volumeLabel.textColor = [UIColor whiteColor];
_volumeLabel.text = @"手指上滑，取消发送";
[_volumeBgView addSubview:_volumeLabel];
//开始录音
_countDown = 60;
//添加定时器
_timer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(refreshLabelText) userInfo:nil repeats:YES];
[[NSRunLoop currentRunLoop] addTimer:_timer forMode:NSRunLoopCommonModes];
_session =[AVAudioSession sharedInstance];
NSError *sessionError;
[_session setCategory:AVAudioSessionCategoryPlayAndRecord error:&sessionError];
if (_session == nil) {
NSLog(@"Error creating session: %@",[sessionError description]);
} else {
[_session setActive:YES error:nil];
}
//获取文件沙盒地址
NSString *path = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
_recordFilePath = [path stringByAppendingString:@"/RRecord.wav"];
//设置参数
NSDictionary *recordSetting = @{AVFormatIDKey: @(kAudioFormatLinearPCM),
AVSampleRateKey: @8000.00f,
AVNumberOfChannelsKey: @1,
AVLinearPCMBitDepthKey: @16,
AVLinearPCMIsNonInterleaved: @NO,
AVLinearPCMIsFloatKey: @NO,
AVLinearPCMIsBigEndianKey: @NO};
_recorder = [[AVAudioRecorder alloc] initWithURL:[NSURL fileURLWithPath:_recordFilePath] settings:recordSetting error:nil];
if (_recorder) {
_recorder.meteringEnabled = YES;
[_recorder prepareToRecord];
[_recorder record];
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(60 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
[self recordButtonTouchUpInside];
});
}else{
NSLog(@"音频格式和文件存储格式不匹配,无法初始化Recorder");
}
}
- (void)refreshLabelText {
[_recorder updateMeters];
float level;
float minDecibels = -80.0f;
float decibels = [_recorder averagePowerForChannel:0];
if (decibels < minDecibels) {
level = 0.0f;
} else if (decibels >= 0.0f) {
level = 1.0f;
} else {
float root = 2.0f;
float minAmp = powf(10.0f, 0.05f * minDecibels);
float inverseAmpRange = 1.0f / (1.0f - minAmp);
float amp = powf(10.0f, 0.05f * decibels);
float adjAmp = (amp - minAmp) * inverseAmpRange;
level = powf(adjAmp, 1.0f / root);
}
NSInteger voice = level*10 + 1;
voice = voice > 8 ? 8 : voice;
NSString *imageIndex = [NSString stringWithFormat:@"voice_%ld", voice];
if (_isLeaveSpeakBtn) {
_volumeImageView.image = [UIImage imageNamed:@"rc_ic_volume_cancel"];
} else {
_volumeImageView.image = [UIImage imageNamed:imageIndex];
}
_countDown --;
if (_countDown < 10 && _countDown > 0) {
_volumeLabel.text = [NSString stringWithFormat:@"还剩 %ld 秒",(long)_countDown];
}
//超时自动发送
if (_countDown < 1) {
[self recordButtonTouchUpInside];
}
}
//松开发送
- (void)recordButtonTouchUpInside {
NSLog(@"recordButtonTouchUpInside");
_isLeaveSpeakBtn = NO;
if (!_timer) { //松开之后为何还会触发
return;
}
//停止录音 移除定时器
[_timer invalidate];
_timer = nil;
if ([_recorder isRecording]) {
[_recorder stop];
}
//允许其它按钮交互
[self setupUserEnabled:YES];
if (_countDown > 59) {
_volumeImageView.image = [UIImage imageNamed:@"rc_ic_volume_wraning"];
_volumeLabel.text = @"说话时间太短";
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
if (_volumeBgView) {
[_volumeBgView removeFromSuperview];
_volumeBgView = nil;
}
});
return;
}
if (_volumeBgView) {
[_volumeBgView removeFromSuperview];
_volumeBgView = nil;
}
//音频数据
// [NSData dataWithContentsOfFile:_recordFilePath];
}
- (void)setupUserEnabled:(BOOL)enable {
_playRecordButton.enabled = enable;
}
//上滑离开按钮区域松开 取消
- (void)recordButtonTouchUpOutside {
NSLog(@"recordButtonTouchUpOutside");
_isLeaveSpeakBtn = NO;
//停止录音 移除定时器
[_timer invalidate];
_timer = nil;
if ([_recorder isRecording]) {
[_recorder stop];
}
//允许其它按钮交互
[self setupUserEnabled:YES];
if (_volumeBgView) {
[_volumeBgView removeFromSuperview];
_volumeBgView = nil;
}
}
- (void)recordButtonTouchUpDragExit {
NSLog(@"recordButtonTouchUpDragExit");
_isLeaveSpeakBtn = YES;
_volumeLabel.text = @"松开手指，取消发送";
_volumeLabel.backgroundColor = [UIColor redColor];
_volumeImageView.image = [UIImage imageNamed:@"rc_ic_volume_cancel"];
}
- (void)recordButtonTouchUpDragEnter {
NSLog(@"recordButtonTouchUpDragEnter");
_isLeaveSpeakBtn = NO;
_volumeLabel.text = @"手指上滑，取消发送";
_volumeLabel.backgroundColor = [UIColor clearColor];
}
//检查是否拥有麦克风权限
- (BOOL)canRecord {
__block BOOL bCanRecord = YES;
AVAudioSession *audioSession = [AVAudioSession sharedInstance];
if ([audioSession respondsToSelector:@selector(requestRecordPermission:)]) {
[audioSession performSelector:@selector(requestRecordPermission:) withObject:^(BOOL granted) {
if (granted) {
bCanRecord = YES;
} else {
bCanRecord = NO;
}
}];
}
return bCanRecord;
}
@end
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