/HighLightDemo

Android TextView 实现 HighLight 效果

Primary LanguageJava

Rounded Corners Background Span

Left Aligned  Center Aligned  Right Aligned

Setup and usage

Fork this project. Gradle dependency is outdated.

You can create spannable string using RoundedCornersBackgroundSpan.Builder. All methods have JavaDoc so check it to understand what each method is doing.

final Spannable spanned = new RoundedCornersBackgroundSpan.Builder(this)
    .setTextPadding(float)
    .setCornersRadius(float)
    .setTextPaddingRes(dimenId)
    .setCornersRadiusRes(dimenId)
    .setSpacingSize(float)
    .setSpacingSizeRes(dimenId)
    .setTextAlignment(alignment)
    .addTextPart(string, color)
    .addTextPart(stringId, colorId)
    .addTextPart(string)
    .addTextPart(stringId)
    .build()
textView.setText(spanned);

As text parts you can pass any CharSequence, even another Spanned strings with their own spans!

Restrictions:

  • Text with mixed layout directions is not supported (i.e. latin and arabic).
  • You must always apply padding, lines spacing and shadow to your TextView. See sample app for example.
  • Shadow radius must be equal to text padding.
  • Prefer transparent colors for shadow. You can set shadow via code TextView.setShadowLayer(padding, 0, 0, Color.TRANSPARENT);.
  • You can't set transparent shadow color via XML. Use non-zero colors, for example, #00000001.

Changelog

Version Changes
v.1.0.0 First public release

Support

You can support this library by creating a pull request with bug fixes and/or new features on develop branch. Any pull requests on master branch will be removed.


License

The MIT License (MIT)

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.