new File ( path ) 总是说没有文件

发布于 2024-10-07 04:48:44 字数 1025 浏览 0 评论 0原文

我的问题有点难以描述。

我的项目(和 apk 文件)中有一个单独的资源文件夹。

String path = "/resources/instruments/data/bongo/audio/bong1.wav";  

我已经可以使用它,

url = StreamHelper.class.getClassLoader().getResource( path );
url.openStream();

但实际上我想将文件加载到 SoundPool 中。 我尝试了这种方式:

SoundPool soundPool = new SoundPool(  5, AudioManager.STREAM_MUSIC, 0 );  
soundPool.load ( path, 1 );

...但我总是收到错误信息:“加载/资源时出错...”

加载(字符串路径, int ) 在此链接上,我发现我需要文件的正确路径,

File file = new File( path );
if( file.exists() ) 
     //always false but i thing if it would be true soundPool.load should work too

现在我的问题是:该路径如何工作。或者对于我的问题还有其他想法吗(使用 AssetManager)?

顺便提一句。我知道有特殊的 Android 方法来获取像 R.id.View 这样的资源...但就我而言,这并不容易处理。

谢谢!

my problem is a little bit tricky to describe.

I have a separated resources folder in my project (and in the apk-file).

String path = "/resources/instruments/data/bongo/audio/bong1.wav";  

I can already use it with

url = StreamHelper.class.getClassLoader().getResource( path );
url.openStream();

but actually I want to load the file into the SoundPool.
I tried it this way:

SoundPool soundPool = new SoundPool(  5, AudioManager.STREAM_MUSIC, 0 );  
soundPool.load ( path, 1 );

... but i always get an error information: "error loading /resourc..."

load(String path, int )
On this link I've seen that I need the correct path for File

File file = new File( path );
if( file.exists() ) 
     //always false but i thing if it would be true soundPool.load should work too

Now my question: how has the path to be that it works. Or is there any other idea for my problem (p.e. with the AssetManager) ?

Btw. I know that there are special Android ways to get resources like R.id.View ... but in my case it would be not easy to handle.

Thanks!

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评论(2

二手情话 2024-10-14 04:48:44

就我个人而言,我不将 WAV 文件视为“资源”,我建议您将它们放入“资产”文件夹中并使用您提到的 AssetManager。

这对我有用...

在您的项目中创建一个文件夹结构...

    /assets/instruments/data/bongo/audio

...然后将您的 bong1.wav 文件复制到那里。

使用以下命令来加载它。注意:在提供 soundPool.load() 路径时,请勿将“/”放在“乐器”前面...

    // Declare globally if needed
    int mySoundId;
    SoundPool soundPool = new SoundPool(5, AudioManager.STREAM_MUSIC, 0 );
    AssetManager am = this.getAssets();

    //Use in whatever method is used to load the sounds
    try {
        mySoundId = soundPool.load(am.openFd("instruments/data/bongo/audio/bong1.wav"), 1);
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

使用它来播放它...

    soundPool.play(mySoundId, 1, 1, 0, 0, 1);

Personally, I don't see WAV files as 'resources' and I'd suggest you put them in the 'assets' folder and use AssetManager as you mentioned.

This works for me...

Create a folder structure in your project...

    /assets/instruments/data/bongo/audio

...then copy your bong1.wav file there.

Use the following to load it. NOTE: DO NOT put '/' in front of 'instruments' when supplying the path to soundPool.load()...

    // Declare globally if needed
    int mySoundId;
    SoundPool soundPool = new SoundPool(5, AudioManager.STREAM_MUSIC, 0 );
    AssetManager am = this.getAssets();

    //Use in whatever method is used to load the sounds
    try {
        mySoundId = soundPool.load(am.openFd("instruments/data/bongo/audio/bong1.wav"), 1);
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

Use this to play it...

    soundPool.play(mySoundId, 1, 1, 0, 0, 1);
无悔心 2024-10-14 04:48:44

它显然需要文件系统路径而不是类路径路径。

使用 URL#getPath() 来获取它。

soundPool.load(url.getPath());

It's apparently expecting a file system path rather than a classpath path.

Use URL#getPath() to obtain it.

soundPool.load(url.getPath());
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