ParallaxScrollingView

Parallax scrolling either by offset or automatically.

Description

Parallax Scrolling View.

# Features - automatic scrolling with different speeds - minimal integration - gpu accelerated - supports vector drawables - supports bitmap drawables - supports ViewPager2 - argb interpolated gradient on viewpager scrolling - updates statusBar color on scroll

Programming language: Kotlin

License: Apache License 2.0

Tags: Kotlin     UI     Android     ViewPager     Custom View     Android-library     Kotlin Library     Gpu     Parallax     Automatic-scrolling     Swipe-scrolling    

Latest version: v1.0.0

README

ParallaxScrollingView

Parallax Scrolling View.

• automatic scrolling with different speeds
• minimal integration
• gpu accelerated
• supports vector drawables
• supports bitmap drawables
• supports ViewPager2
• argb interpolated gradient on viewpager scrolling
• updates statusBar color on scroll

[[Screenshot](sample_big.gif)](sample_big.gif)

How to use

1 add ParallaxScrollingView to [your layout](app/src/main/res/layout/activity_main.xml#L21-L82)

<net.kibotu.parallaxscrollingview.ParallaxScrollingView
    android:id="@+id/wave1"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:speed="@dimen/wave1_speed"
    app:src="@drawable/ic_wave"
    android:layout_width="0dp"
    android:layout_height="wrap_content" />

2 (Optional) add [ParallaxScrollingViewOnPageScrollListener](app/src/main/java/net/kibotu/parallaxscrollingview/demo/MainActivity.kt#L28)) to ViewPager2

viewPager.registerOnPageChangeCallback(ParallaxScrollingViewOnPageScrollListener(listOf(wave1, wave2, wave3, wave4, wave5, wave6), 2f))

3(Optional) add [OffsetOnPageScrollListener](app/src/main/java/net/kibotu/parallaxscrollingview/demo/MainActivity.kt#L30) to ViewPager2

viewPager.registerOnPageChangeCallback(OffsetOnPageScrollListener(this, root, items.indices.map { backgrounds[it] }, true))

How to install

repositories {
    maven {
    url "https://jitpack.io"
    }
}

dependencies {
    implementation 'com.github.kibotu:ParallaxScrollingView:-SNAPSHOT'
}

Notes

Follow me on Twitter: @wolkenschauer

Let me know what you think: [email protected]

Contributions welcome!

License

Copyright 2019 Jan Rabe

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.