Spark

Create gradient animations like Instagram&Spotify.

Screenshots

<div align="center"> <img src="./art/spark.gif" width="256" alt="screenshot"> </div>

Usage

private lateinit var _spark: Spark

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_main)

    _spark = Spark(frameLayout, Spark.ANIM_GREEN_PURPLE, 4000)
    _spark.startAnimation()
}

override fun onDestroy() {
    super.onDestroy()

    _spark.stopAnimation()
}

Installation

Gradle

dependencies {
    implementation 'io.github.tonnyl:spark:x.y.z'
}

Maven

<dependency>
  <groupId>io.github.tonnyl</groupId>
  <artifactId>spark</artifactId>
  <version>x.y.z</version>
  <type>pom</type>
</dependency>

Custom Gradient Colors

Spark has 3 built-in animation-lists, and you can custom your owns.

Create gradient drawables

purple_drawable.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">

    <gradient
        android:centerColor="#e459aa"
        android:endColor="#cd7be6"
        android:startColor="#f14589"
        android:type="linear" />

    <corners android:radius="0dp" />

</shape>

yellow_drawable.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">

    <gradient
        android:centerColor="#F4A37B"
        android:endColor="#F08875"
        android:startColor="#F9CB87"
        android:type="linear"/>

    <corners android:radius="0dp" />

</shape>

Create the Animation List

custom_anim_list.xml

<?xml version="1.0" encoding="utf-8"?>
<animation-list xmlns:android="http://schemas.android.com/apk/res/android"
    android:oneshot="false">

    <item
        android:drawable="@drawable/yellow_drawable"
        android:duration="4500" />

    <item
        android:drawable="@drawable/purple_drawable"
        android:duration="4500" />

</animation-list>

Apply Your Custom Animation List

_spark = Spark(
    frameLayout,
    R.drawable.your_custom_anim_list, // Your custom animation
    4000
)

Thanks

Designed by Alexander Zaytsev.

License

Spark is under the MIT license. See the LICENSE for more information.