如何从内部和外部的SD卡在android的播放mp3文件？ [英] How to play mp3 files from internal and external SD card in android?

问题描述

我工作的一个MP3播放器应用程序，这在任何地方发挥了内部SD卡里面的.mp3文件present。

I am working on a mp3 player app, which plays .mp3 files present anywhere inside an internal SD card.

我使用了下列codeS来获取.mp3文件present的内部存储。

I have used the following codes to fetch the .mp3 files present in internal storage.

ArrayList<File> inFiles = new ArrayList<File>();
File list[] = file.listFiles();
//Log.i("DIR", "PATH" +file.getPath());
for (int i = 0; i < list.length; i++) 
{
    // myList.add( list[i].getName() );
    File temp_file = new File(file.getAbsolutePath(),list[i].getName());
    //Log.i("DIR", "PATH" +temp_file.getAbsolutePath());
    if (temp_file.listFiles() != null) 
    {
        //Log.i("inside", "call fn");
        listfiles(temp_file);

    }
    else 
    {
        if (list[i].getName().toLowerCase().contains(".mp3"))
        {
            inFiles.add(list[i]);
        //Log.e("Music", list[i].getName());
        }
    }
}

我如何同样得到外部SD卡中的.mp3文件中呢？

How do I similarly get the .mp3 files from external SD card as well?

推荐答案

尝试使用这样的：

File root = Environment.getExternalStorageDirectory();

这将让你的外部存储的根，只要有一个。然后你就可以过滤掉不.mp3文件

That will get you the root of the external storage, provided that there is one. Then you can filter out files that aren't .mp3

另外还要考虑看这个：全部列出一个文件的在Android设备类型？

Also consider looking at this: List all of one file type on Android device?

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