Xamarin-Plugins/SimpleAudioPlayer - Error in Code

Question

Hi

I want to use a mediaplayer in my Xamarin/C# to mainly play Audio files (mp3/wav).

I have installed Xamarin-Plugins/SimpleAudioPlayer into my first Android project.

The following is the code for playing an audio file:

 ISimpleAudioPlayer AudioPlayer;

        private void PlayAudio(object sender, EventArgs e)
        {

            AudioPlayer.Load("Test.mp3");
            AudioPlayer.Play;
        }

AudioPlayer.Play; is throwing an Compiler Error CS0201 Only assignment, call, increment, decrement, and new object expressions can be used as a statement

PlayAudio is called by a Clicked action from a toolbar item in my XAML file

Also Test3.mp3 is added to my resources file and Build Action is Embedded Source. Is AudioPlayer.Load("Test.mp3"); declared correctly?

Can anyone suggest what I am doing wrong and how I can overcome issue.

Thanks

Answer 1

Hello,​

Welcome to our Microsoft Q&A platform!

You need to read the mp3 file from the assets folder. you can write a dependenceservice to read Stream. Then you can use Plugin.SimpleAudioPlayer to play it

Firstly, create an interface in the share folder.

   public interface IReadFile  
       {  
           Stream ReadAudioStream(string FileName);  
       }  

Then achieve this interface in the android platform. Note, please copy your mp3 file to android Assets folder, build action property is AndroidAsset.

   [assembly: Dependency(typeof(ReadFileServoce))]  
   namespace App4.Droid  
   {  
       class ReadFileServoce : IReadFile  
       {  
           public Stream ReadAudioStream(string FileName)  
           {  
               AssetManager assets = Android.App.Application.Context.Assets;  
               Stream stream = assets.Open(FileName);  
               return stream;  
     
           }  
     
            
       }  
   }  

Open you can play it the Forms background code. Note: Please use android device to test it. I use android emulator, do not have any audio(it is my emulator's issue).

   ISimpleAudioPlayer player;  
           public AboutPage()  
           {  
               InitializeComponent();  
     
               BindingContext = ViewModelLocator.MainViewModel;  
               
               var stream = DependencyService.Get<IReadFile>().ReadAudioStream("jay.mp3");     
               player = Plugin.SimpleAudioPlayer.CrossSimpleAudioPlayer.CreateSimpleAudioPlayer();  
               player.Load(stream);  
     
           }  
     
           private async  void Button_Clicked(object sender, EventArgs e)  
           {  
               player.Play();  
             
           }  

Best Regards,

Leon Lu

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Answer 2

Where do you create an instance of AudioPlayer ?

(with CreateSimpleAudioPlayer, from samples like Play Audio in Xamarin Forms using Xam.Plugin.SimpleAudioPlayer