Android TextHighlighter

Introduction

highlights every View which inherits TextView(i.e. TextView, Button, EditText). Set targets and Colors. Then highlight any word.

Requirements

Android API ≥ 2.3 (API Level 9)

Gradle

You can import TextHighlighter from jcenter.

repositories {
    jcenter()
}

dependencies {
    compile 'com.xeoh.android:text-highlighter:1.0.3'
}

Usage

// Initialize TextHighlighter
private TextHighlighter textHighlighter = new TextHighlighter()
      .setBackgroundColor(Color.parse("#FFFF00"))
      .setForegroundColor(Color.RED)
      .setBold(true)
      .setItalic(true)
      .addTarget(findViewById(R.id.anyTextView))
      .highlight("word", TextHighlighter.BASE_MATCHER);

// invalidate after add more targets
textHighlighter.addTarget(findViewById(R.id.anyButton))
      .invalidate(TextHighlighter.BASE_MATCHER);

// invalidate after color changes
textHighlighter.setForegroundColor(Color.GREEN)
      .invalidate(TextHighlighter.BASE_MATCHER);

// change matcher to case insensitive
textHighlighter.invalidate(TextHighlighter.CASE_INSENSITIVE_MATCHER);

/*
You can use multiple TextHighlighter for multiple keyword or multiple
styles. However, if two highlighter highlights same word, priority depends
on order of highlight(...) function call
*/

See sample application

Version History

• 1.0.0 Testing version. (Not published)
• 1.0.1 First Deploy.
• 1.0.2 Add bold and italic feature.
• 1.0.3 Fix Performance issue for large amount of list items.

License

TextHighlighter is available under the MIT license. See the LICENSE file for more info.