如何在Android中将文件保存到Uri路径

<provider
    android:name="androidx.core.content.FileProvider"
    android:authorities="com.example.yourapp.fileprovider"
    android:exported="false"
    android:grantUriPermissions="true">
    <meta-data
        android:name="android.support.FILE_PROVIDER_PATHS"
        android:resource="@xml/file_paths" />
</provider>

<paths xmlns:android="http://schemas.android.com/apk/res/android">
    <external-path name="my_files" path="." />
</paths>

// 获取文件路径
File file = new File(getExternalFilesDir(null), "my_file.txt");

// 获取文件的Uri路径
Uri uri = FileProvider.getUriForFile(this, "com.example.yourapp.fileprovider", file);

// 保存文件到Uri路径
try {
    OutputStream outputStream = getContentResolver().openOutputStream(uri);
    // 在这里写入文件数据到outputStream
    outputStream.close();
} catch (IOException e) {
    e.printStackTrace();
}