Android Q-如何获取外部SD卡公共下载目录路径

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

String[] projection = {MediaStore.Downloads._ID, MediaStore.Downloads.DISPLAY_NAME};
Uri downloadsUri = MediaStore.Downloads.EXTERNAL_CONTENT_URI;
Cursor cursor = getContentResolver().query(downloadsUri, projection, null, null, null);
if (cursor != null && cursor.moveToFirst()) {
    int idColumn = cursor.getColumnIndex(MediaStore.Downloads._ID);
    int nameColumn = cursor.getColumnIndex(MediaStore.Downloads.DISPLAY_NAME);
    do {
        long fileId = cursor.getLong(idColumn);
        String fileName = cursor.getString(nameColumn);
        // 处理文件ID和文件名
    } while (cursor.moveToNext());
    cursor.close();
}