PaletteSample

The palette library is a support library that extracts prominent colors from images to help you create visually engaging apps.

For example, you can use a palette to create a color-coordinated title card for a song based on its album cover or to adjust an app’s toolbar color when its background image changes. The Palette object gives you access to the colors in a Bitmap image while also providing six main color profiles from the bitmap to help inform your design choices.

Sample Implementation

In this sample, the Palette is used to get vibrant colors and set it into CardView shadows.

Setup

android {
  compileSdkVersion 28
  ...
}

dependencies {
  ...
  implementation 'androidx.palette:palette:1.0.0'
}

Create a Palette

// Generate palette synchronously and return it
fun createPaletteSync(bitmap: Bitmap): Palette = Palette.from(bitmap).generate()

// Generate palette asynchronously and use it on a different
// thread using onGenerated()
fun createPaletteAsync(bitmap: Bitmap) {
    Palette.from(bitmap).generate { palette ->
        // Use generated instance
    }
}

References

https://developer.android.com/training/material/palette-colors