badboy-tian / html-textview

TextView to load HTML

HtmlTextView for Android

HtmlTextView is an extended TextView component for Android, which can load HTML and converts it into Spannable for displaying it. It is a replacement for usage of the WebView component, which behaves strange on some Android versions, flickers while loading, etc.

Tags supported by Android (history of Html class)

• <p>
• <div> handled exactly like <p>
• <br>
• <b>
• <i>
• <strong> (bug on some Android versions: generates italic)
• <em> (bug on some Android versions: generates bold)
• <u>
• <strike>
• <tt>
• <dfn>
• <sub>
• <sup>
• <blockquote>
• <cite>
• <big>
• <small>
• <font size="..." color="..." face="...">
• <h1>, <h2>, <h3>, <h4>, <h5>, <h6>
• <a href="...">
• <img src="...">

Extended support by HtmlTextView

• <ul>
• <ol>
• <dd>
• <li>
• <code>
• <center>

The library also includes a workaround to prevent TextView from crashing on specific Android versions and the possibility to load images from local drawables folder or from the Internet.

This library is kept tiny without external dependencies. I am using it to provide Help/About Activities in my apps.

Example

HtmlTextView text = new HtmlTextView(this);

// loads html from string and displays cat_pic.png from the app's drawable folder
text.setHtmlFromString("<h2>Hello wold</h2><ul><li>cats</li><li>dogs</li></ul><img src=\"cat_pic\"/>", true);

or

HtmlTextView text = new HtmlTextView(this);

// loads html from string and displays http://www.example.com/cat_pic.png from the Internet
text.setHtmlFromString("<h2>Hello wold</h2><ul><li>cats</li><li>dogs</li></ul><img src=\"http://www.example.com/cat_pic.png\"/>", false);

or

HtmlTextView text = new HtmlTextView(this);

// loads html from raw resource, i.e., a html file in res/raw/, this allows translatable resource (e.g., res/raw-de/ for german)
text.setHtmlFromRawResource(this, R.raw.help, true);

Use library as Gradle dependency (Android library project)

1. Copy the cloned folder to your project and define it in your settings.gradle with include ':html-textview'
2. Add dependency compile project(':html-textview') to your project's build.gradle.

License

Apache License v2

See LICENSE for full license text.

Authors

• This library was put together by Dominik Schürmann
• Original TagHandler developed by Mohammed Lakkadshaw
• Original UrlImageGetter developed by Antarix Tandon
• Original LocalImageGetter developed by drawk
• JellyBeanSpanFixTextView (with fix from comment) developed by Pierre-Yves Ricau

Contributions

Feel free to fork and do pull requests. I am more than happy to merge them. Please do not introduce external dependencies.