在Android4.2上与WhatsApp共享音频文件失败

// 在AndroidManifest.xml中添加权限
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>

// 在运行时请求权限
if (ContextCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
    ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, REQUEST_CODE);
}

File audioFile = new File("/path/to/your/audio/file.mp3");
if (audioFile.exists()) {
    Uri uri = FileProvider.getUriForFile(this, getApplicationContext().getPackageName() + ".provider", audioFile);
    Intent shareIntent = new Intent();
    shareIntent.setAction(Intent.ACTION_SEND);
    shareIntent.putExtra(Intent.EXTRA_STREAM, uri);
    shareIntent.setType("audio/*");
    shareIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
    startActivity(Intent.createChooser(shareIntent, "Share audio file"));
} else {
    Toast.makeText(this, "File does not exist", Toast.LENGTH_SHORT).show();
}

<provider
    android:name="androidx.core.content.FileProvider"
    android:authorities="${applicationId}.provider"
    android:exported="false"
    android:grantUriPermissions="true">
    <meta-data
        android:name="android.support.FILE_PROVIDER_PATHS"
        android:resource="@xml/file_paths" />
</provider>

<?xml version="1.0" encoding="utf-8"?>
<paths xmlns:android="http://schemas.android.com/apk/res/android">
    <external-path name="external_files" path="." />
</paths>