问题描述

如何在AVPlayer播放实现静音

用下面的代码播放音频：

 -(IBAction)hearAudioMessage:(id)sender{ChatObject * obj = [chatArray objectAtIndex:rowIndexInt]; NSString *str=[NSString stringWithFormat:@""http://www.myserver.com/files/%@""obj.voiceFileString];    self.palyer=[[AVPlayer alloc] initWithURL:[NSURL URLWithString:str]];    [self.palyer play];}

我想在播放期间能静音。

用了下面的代码，但是木有实现：

NSArray *audioTracks = [asset tracksWithMediaType:AVMediaTypeAudio];NSMutableArray *allAudioParams = [NSMutableArray array];for (AVAssetTrack *track in audioTracks) {    AVMutableAudioMixInputParameters *audioInputParams =    [AVMutableAudioMixInputParameters audioMixInputParameters];    [audioInputParams setVolume:0.0 atTime:kCMTimeZero];    [audioInputParams setTrackID:[track trackID]];    [allAudioParams addObject:audioInputParams];}AVMutableAudioMix *audioMix = [AVMutableAudioMix audioMix];[audioMix setInputParameters:allAudioParams];AVPlayerItem *playerItem = [AVPlayerItem playerItemWithAsset:asset];[playerItem setAudioMix:audioMix];

不知道应该怎么能实现呢？

解决方案

很简单的，用下面这行代码静音：

[player pause];