https://github.com/facebook/TextLayoutBuilder

An Android library that allows you to build text layouts more easily.
https://github.com/facebook/TextLayoutBuilder

Last synced: 3 months ago
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An Android library that allows you to build text layouts more easily.

• Host: GitHub
• URL: https://github.com/facebook/TextLayoutBuilder
• Owner: facebook
• License: apache-2.0
• Created: 2016-11-01T22:04:45.000Z (about 8 years ago)
• Default Branch: main
• Last Pushed: 2024-03-23T23:17:55.000Z (8 months ago)
• Last Synced: 2024-05-22T06:12:00.629Z (6 months ago)
• Language: Java
• Homepage: https://facebook.github.io/TextLayoutBuilder
• Size: 517 KB
• Stars: 1,471
• Watchers: 49
• Forks: 132
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • Contributing: .github/CONTRIBUTING.md
  • License: LICENSE
  • Code of conduct: .github/CODE_OF_CONDUCT.md

Awesome Lists containing this project

• awesome-github-android-ui - TextLayoutBuilder - Facebook出品的在Android中轻松实现文字布局 (TextView)

README

        


# TextLayoutBuilder

Build text [Layout](https://developer.android.com/reference/android/text/Layout.html)s easily on Android.

## Features

- Create text `Layout`s easily.

- Reuse builders to create similarly styled `Layout`s.

- Cache `Layout`s of commonly used strings.

- Improve performance by warming up the FreeType cache.

## Download

If using Gradle, add this to your `build.gradle`:

```groovy

compile 'com.facebook.fbui.textlayoutbuilder:textlayoutbuilder:1.7.0'

```

or, if using Maven:

```xml

  com.facebook.fbui.textlayoutbuilder

  textlayoutbuilder

  1.7.0

  aar

```

## Usage

1. Set the properties on the `TextLayoutBuilder`:

  ```java

  TextLayoutBuilder builder = new TextLayoutBuilder()

      .setText("TextLayoutBuilder makes life easy")

      .setTextColor(Color.BLUE)

      .setWidth(400 /*, MEASURE_MODE_EXACTLY */);

  ```

2. Call `build()` on the builder to get a `Layout`:

  ```java

  Layout layout = builder.build();

  ```

3. Use the `Layout` in your code:

  ```java

  public class CustomView extends View {

      private Layout layout;

      public CustomView(Context context) {

          super(context);

      }

      public void setLayout(Layout layout) {

          this.layout = layout;

      }

      @Override

      protected void onDraw(Canvas canvas) {

          super.onDraw(canvas);

          // Draw the layout.

          layout.draw(canvas);

      }

  }

  ```

## Additional Usage

1. Cache the layouts for commonly used strings by turning on caching in the `TextLayoutBuilder`.

  ```java

  textLayoutBuilder.setShouldCacheLayout(true);

  ```

2. Glyph warming provides significant performance boost for large blurbs of text.

Turn this on and pass in a `GlyphWarmer` for the `TextLayoutBuilder`.

  ```java

  textLayoutBuilder

      .setShouldWarmText(true)

      .setGlyphWarmer(new GlyphWarmerImpl());

  ```

3. Import a style defined in XML into a `TextLayoutBuilder` object.

  ```java

  ResourceTextLayoutHelper.updateFromStyleResource(

      textLayoutBuilder, // builder object

      context,           // Activity context

      resId);            // style resource id

  ```

## License

TextLayoutBuilder is Apache-2-licensed.