最近在做基于XMPP的IM,开发到发送语音消息的功能.在某度上搜了很久也没有找到适合的方法.索性自己琢磨了一个,提供给大家参考.(其中找到的很多文章都是一个复制另一个的,很烦!没格式没头没尾的.给不了人任何思路的一堆文字)

##发送语音功能模块主要有三个模块

• 手势按钮
• 语音录音机(压缩音频数据用于上传发送)
• 语音播放器(播放接收的压缩语音消息)

#Part 1 :手势按钮
仿照经常使用的微信"发送消息"按钮.当时第一想法就是想到- (BOOL)containsPoint:(CGPoint)p;方法.

直接上代码

.h

#import <UIKit/UIKit.h>@protocol DPChatToolBarAudioDelegate <NSObject>/** 录音完成** @param audioData amr文件data* @prram body      附带信息,比如录音时长等信息*/
- (void)DPAudioRecordingFinishWithData:(NSData *)audioData withBodyString:(NSString *)body;@optional/** 开始录音** @param isRecording 是否开始**/
- (void)DPAudioStartRecording:(BOOL)isRecording;/** 录音失败*/
- (void)DPAudioRecordingFail:(NSString *)reason;/** 音频值测量** @param power 音频值*/
- (void)DPAudioSpeakPower:(float)power;@end@interface ChatToolBarAudioButton : UIButton@property (nonatomic, assign) id <DPChatToolBarAudioDelegate> delegate;@end
复制代码

.m

#import "ChatToolBarAudioButton.h"@interface ChatToolBarAudioButton () <DPAudioRecorderDelegate>
{BOOL isShouldSendAudioMessage;         //用户是否取消发送消息NSUInteger __block audioTimeLength; //录音时长
}@end@implementation ChatToolBarAudioButton- (instancetype)initWithFrame:(CGRect)frame
{if (self = [super initWithFrame:frame]) {self.layer.cornerRadius = 4;self.clipsToBounds = YES;[self.titleLabel setTextAlignment:NSTextAlignmentCenter];[self setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];[self setTitle:@"按住 说话" forState:UIControlStateNormal];[self setTitle:@"松开 结束" forState:UIControlStateHighlighted];[self setBackgroundImage:[UIImage imageNamed:@"chatBar_recordBg"] forState:UIControlStateNormal];[self setBackgroundImage:[UIImage imageNamed:@"chatBar_recordSelectedBg"] forState:UIControlStateHighlighted];//增加长按手势UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc]initWithTarget:self action:@selector(longPress:)];longPress.minimumPressDuration = 0;[self addGestureRecognizer:longPress];}return self;
}- (void)longPress:(UILongPressGestureRecognizer *)gestureRecognizer
{CGPoint point = [gestureRecognizer locationInView:self];if(gestureRecognizer.state == UIGestureRecognizerStateBegan) {[self setTitle:@"松开 结束" forState:UIControlStateNormal];[self setBackgroundImage:[UIImage imageNamed:@"chatBar_recordSelectedBg"] forState:UIControlStateNormal];[self audioStart];} else if(gestureRecognizer.state == UIGestureRecognizerStateEnded) {[self setTitle:@"按住 说话" forState:UIControlStateNormal];[self setBackgroundImage:[UIImage imageNamed:@"chatBar_recordBg"] forState:UIControlStateNormal];[self audioStop];} else if(gestureRecognizer.state == UIGestureRecognizerStateChanged) {if ([self.layer containsPoint:point]) {[self setTitle:@"松开 结束" forState:UIControlStateNormal];isCancelSendAudioMessage = NO;} else {[self setTitle:@"松开 取消" forState:UIControlStateNormal];isCancelSendAudioMessage = YES;}} else if (gestureRecognizer.state == UIGestureRecognizerStateFailed) {NSLog(@"失败");} else if (gestureRecognizer.state == UIGestureRecognizerStateCancelled) {NSLog(@"取消");}
}- (void)audioStart
{//开始录音[[DPAudioRecorder sharedInstance] startRecording];
}//结束录音
- (void)audioStop
{[[DPAudioRecorder sharedInstance] stopRecording];
}//录音失败
- (void)audioFailed
{//do something
}
@end
复制代码

效果图:

Demo 地址 :github.com/XL-Andrew/C…