Android - get email attachment name in my application

Question

I\'m trying to load an email attachment in my application. I can get the content, but I cannot get the file name.

Here\'s how my intent filter looks like:

Answer 1

Here's a "combo solution". Note the final fallback using the mimeType. You will need to define the toExtension() method...

private static String contentUriFilename( Uri uri ){
    String fileName="";
    if( fileName.isEmpty() )
        fileName = contentUriFilename( uri, android.provider.OpenableColumns.DISPLAY_NAME );
    if( fileName.isEmpty() )
        fileName = contentUriFilename( uri, android.provider.MediaStore.MediaColumns.DISPLAY_NAME );
    if( fileName.isEmpty() )
        fileName = contentUriFilename( uri, "_display_name" );
    if( fileName.isEmpty() ){
        String mimeType;
        try{ mimeType = context_.getContentResolver().getType( uri ); }
        catch( Exception e ){ mimeType=""; }
        fileName = "unknown." + toExtension( mimeType );
    }
    return fileName;
}

private static String contentUriFilename( Uri uri, String columnName ){
    Cursor cursor = context_.getContentResolver().query( uri,
        new String[]{columnName}, null, null, null);
    cursor.moveToFirst();
    try{
        return cursor.getString(
                    cursor.getColumnIndexOrThrow( columnName ) );
    }
    catch( Exception e ){ return ""; }
}