kibotu / ParallaxScrollingView

Parallax scrolling either by offset or automatically.

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

How to use

1 add ParallaxScrollingView to your layout

<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) to ViewPager2

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

3(Optional) add OffsetOnPageScrollListener 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: [e-mail]

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.