[Free/ Beta] XPP - Xml Pull Parser

mahmoud_hooda · October 2, 2025, 3:03pm

Name

XPP (XML Pull Parser)

Description

XPP is an MIT App Inventor extension (also works on Kodular, Niotron, and AndroidBuilder ..etc.) that provides a fast and lightweight way to parse XML data using the XmlPullParser API in Java.

It allows you to read and parse XML from multiple sources:

From text (String)
From URL (HTTP/HTTPS)
From local file path
From application assets

During parsing, it triggers events so you can handle XML data dynamically:

TagStarted → fired when a start tag is found
TextFound → fired when text content is found
TagEnded → fired when an end tag is found

Why use XmlPullParser?

1. Performance & Speed

XmlPullParser works in a streaming manner, reading the XML step by step.
This makes it much faster and more memory-efficient than DOM parsing (which loads the entire document).

2. Lightweight

Ideal for Android apps, especially when working with large XML files.
Consumes less memory compared to tree-based parsers.

3. Flexible

You can skip unwanted sections, jump to specific tags (SkipToTag, FindNextTag), or extract only the parts you need.

4. Full Control

You decide what to do with tags, attributes, and text as they are parsed, instead of loading everything at once.

Benefits of XPP Extension

Multiple XML sources: Read from text, URL, file, or asset.
Event-driven parsing: Handle tags and text dynamically during parsing.
Attributes support: Retrieve all attributes or specific ones by index or name.
Utility methods: SkipToTag, FindNextTag, GetInnerXml for advanced navigation.
Error handling: Central ErrorOccurred event with details about the error and method.
Resource-safe: Automatically closes old input streams and resets parser state.
Easy to use: Designed with simple App Inventor blocks.

All Blocks

Example Usage

data usage :

<books>
	<book id="1" author="Aemo">
		<title>XML Parsing Made Easy</title>
	</book>
	<book id="2" author="Dev">
		<title>MIT App Inventor Extensions</title>
	</book>
</books>

Output

### Download AIX
me.aemo.xpp.aix (14.9 KB)

For more info:

https://developer.android.com/reference/org/xmlpull/v1/XmlPullParser

Credits

Thanks to @JEWEL for the FAST framework.

Support Development

If you like this extension and want to support future work:
Donate via PayPal