TextHighlighter

TextHighlighter is simple android API for developers to show highlighted text in android apps, also provides methods to show styled text.

Description:

The purpose of TextHighlighter API is provide the simplest way to highlight the text in android apps. The API can be used with all andriod views which allows the rendering of text using Html.fromHtml() method.

Usage

Add below line in app build.gradle

dependencies {
 compile 'com.github.nakshay:texthighlighterapi:1.2.2'
}

Code snippets

Create the object of TextHighlighter

TextHighlighter highlighter=new TextHighlighter();

Set the color for specific word

highlighter.setColorForTheToken("Awesome","red");
highlighter.setColorForTheToken("Text","purple");
highlighter.setColorForTheToken("Highlighter","blue");

OR

set color for multiple words

highlighter.setColorForTheToken(String[],"color");

To set default color, if no color is specified.

highlighter.defaultColor="black" 

Call the method getHighlightedText(String textToBeHighlighted) and pass the text to be highlighted

set styles for specific word

highlighter.setStyleForTheToken("Awesome",TextHighlighter.BOLD);
highlighter.setStyleForTheToken("Text",TextHighlighter.UNDERLINE);
highlighter.setStyleForTheToken("Awesome",TextHighlighter.ITALIC);

OR

set style for multiple words

highligter.setStyleForTheToken(String[],style);

Call the method getStyledText(String textToBeStyled) and pass the text to be styled.

String highlightedText=highlighter.getHighlightedText("Awesome Text Highlighter");

both highlited and styled text can be used by passing highlited text to styled text and vice versa.

Pass the returned string to Html.fromHtml() to get highlighted text

textViewobj.setText(Html.fromHtml(highlightedText));

you can add extra tags by appending tags inside Html.fromHtml()

More methods

String = getColorForTheToken(String token);
String = getStyleForTheToken(String token);

String[] = getColorForTheToken(String[] token);
String[] = getStyleForTheToken(String[] token);

Note:

Named colors may not work always, you can use Hex values insted of named colors, hence using Hex values instead of named colors is recommended.

Example:-

highlighter.setColorForTheToken("Awesome","#D83400");

Supported tags for text styling

<b>
<i>
<u>
<sup>
<sub>

Visit www.htmlcolorcodes for awesome colors and their Hex values.

Default languages support

Now TextHighlighter supports automatic color highlighting for default langauges.

Currently supporting C, C++ and Java.

highlighter.setLanguage(highlighter.CPP);

The above line will select default color for highlighting C++ code and you can get rid of all settings for C++ code highlighting like setStyleForTheToken method call

Note: This is a major change in the library and API *may change in future. If you have any suggestions for default colors please open an issue. I am also ready to accept patches, refer contributing guidelines if interested.

Screenshot

Current development

Please refer Wiki section to know more about current development

How to Contribute?

Please refer CONTRIBUTE.md to see contribute workflow.

License

Copyright 2016 AKSHAY NAIK

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.