Introduction

Paralloid - (Pah-rah-loid) The Android Parallax library - DEPRECATED.

Informations

Creator
chrisjenx
chrisjenx
Git URL:
Language
Java
Min SDK:
Android 2.1
License:
Apache License
Created At:
Sep 26, 2013
Last Updated:
Nov 18, 2017
Star:
442
Fork:
90
Watcher count:
33
Tags

Description

Paralloid - DEPRECATED

DEPRECATED - Use the project for more of guide and ideas how to apply parallax techniques. I will not support this library anymore.

Paralloid - (Pah-rah-loid) The Android Parallax library

Compatible back to API 7

An example application, Paralloid Library Example, can be downloaded from the Play Store.

ParallaxScrollView is dead..

I originally wrote ParallaxScrollView a while back as proof of concept, people took surprisingly well to it; but from the get-go it was a fundamentally flawed.

Tightly-coupled and inflexible, made it difficult to maintain and confusing for people to use.

Features

Currently limited but will expand when requests.

  • Parallax another view when the parent scrolls.
  • Parallax multiple backgrounds.
  • Transformers, Parallax in different ways and directions
Supports:

  • ListView
  • ScrollView
  • HorizontalScrollView

Modular

Paralloid is designed to be modular and very loosely coupled (to an extent).

Two high level modules exist

  • paralloid - which is the library which everything extends from.
  • paralloidviews - which extends the library with a couple of pre-extended ScrollableViews.
  • paralloidexamples - which is of course the examples App.
Generally use `paralloidviews` as it contains everything you need to get going.

Getting Started

Dependency

Currently I only support Gradle

Locally:

Temporary steps from @therealkris.

  • First, I cloned the library into myproject/libs/paralloid.
  • In my settings.gradle, I added include ':libs:paralloid:paralloid', ':libs:paralloid:paralloidviews'.
  • In my build.gradle, I added compile project(':libs:paralloid:paralloid'), project(':libs:paralloid:paralloidviews').
  • In libs/paralloid/paralloid, I removed the uploadArchives {} block.
  • In libs/paralloid/paralloidviews, I removed the uploadArchives {} block AND changed the dependency to read: compile project(':libs:paralloid:paralloid') instead of compile project(':paralloid')

Or Repository (coming soon):


dependencies {
    compile 'uk.co.chrisjenx.paralloid:paralloid:0.1.+'
}

Layout

ScrollView

This is an example, please refer to the paralloidexample App for full code.


<FrameLayout ..>
<FrameLayout
        android:id="@+id/top_content"
            android:layout_width="match_parent"
            android:layout_height="192dp"/>

<uk.co.chrisjenx.paralloid.views.ParallaxScrollView android:id="@+id/scroll_view" android:layout_width="match_parent" android:layout_height="match_parent" android:fillViewport="true">

<LinearLayout android:id="@+id/scroll_content" android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical" android:paddingTop="192dp"/>

</uk.co.chrisjenx.paralloid.views.ParallaxScrollView> </FrameLayout>

Fragment

Inside your onViewCreated() or onCreateView().


//...
FrameLayout topContent = (FrameLayout) rootView.findViewById(R.id.top_content);
ScrollView scrollView = (ScrollView) rootView.findViewById(R.id.scroll_view);
if (scrollView instanceof Parallaxor) {
        ((Parallaxor) scrollView).parallaxViewBy(topContent, 0.5f);
}
// TODO: add content to top/scroll content

Thats it!

Have a look at the Parallaxor interface for applicable Parallax methods.

Custom Views

I tried to keep this as simple as possible, you can nearly copy and paste this.

  • Extend the Scrollable view (or the one you allready have).
  • Implement the Parallaxor interface.
  • Job done! See below for an example
__Example implementation:__


public class MyScrollView extends ScrollView implements Parallaxor {
  //...
  ParallaxViewController mParallaxViewController;

// Call init() in constructors private void init() { mParallaxViewController = ParallaxViewController.wrap(this); }

@Override protected void onScrollChanged(int l, int t, int oldl, int oldt) { super.onScrollChanged(l, t, oldl, oldt); mParallaxViewController.onScrollChanged(this, l, t, oldl, oldt); }

// region Implementation of Parallaxor

@Override public void parallaxViewBy(View view, float multiplier) { mParallaxViewController.parallaxViewBy(view, multiplier); }

@Override public void parallaxViewBy(View view, Transformer transformer, float multiplier) { mParallaxViewController.parallaxViewBy(view, transformer, multiplier); }

@Override public void parallaxViewBackgroundBy(View view, Drawable drawable, float multiplier) { mParallaxViewController.parallaxViewBackgroundBy(view, drawable, multiplier); }

// endregion }

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