StackLayoutManager

Android library that provides A RecyclerView.LayoutManager implementation which provides functionality to show a group of stack view.

Overview

StackLayoutManager provides the following advantages:

High performance: the bottom layer use the recyclerView recycle mechanism to allow you to display a large number of itemviews without OOM.
Flexibility: you can choose which direction the card will slide out, and there are four directions to choose.
Hight customization: if you want to implement animation and layout yourself, you can inherit StackAnimation or StackLayout to achieve the desired effect.
Easy to use: you can start using it right away. All you need to do is to drop the JAR file into your project and replace LinearLayoutManager object in your code by com.littlemango.stacklayoutmanager.StackLayoutManager

Gradle integration

If you're using Gradle, you can declare this library as a dependency:

dependencies {
    implementation 'com.littlemango:stacklayoutmanager:1.0.1'
}

Basic usage

The simplest way to use StackLayoutManager is by dropping the library JAR file into your project creating the StackLayoutManager object and pass it back to the RecyclerView object:

StackLayoutManager manager = new StackLayoutManager();

recyclerView.setLayoutManager(manager);

Advanced usage

You can set the orientation of the card to slide out of the screen:

//orientation can be one of ScrollOrientation.BOTTOM_TO_TOP or TOP_TO_BOTTOM or RIGHT_TO_LEFT or LEFT_TO_RIGHT
ScrollOrientation orientation = ScrollOrientation.BOTTOM_TO_TOP

StackLayoutManager manager = new StackLayoutManager(orientation);

recyclerView.setLayoutManager(manager);

You can set the visible item count:

//in the construction method
StackLayoutManager manager = new StackLayoutManager(ScrollOrientation.BOTTOM_TO_TOP, 3);

//or in setter method
manager.setVisibleItemCount(3);

You can change the offset between items:

manager.setItemOffset(50);

You can scroll smoothly or immediately to the specified position:

//scroll to position with animation
recyclerView.smoothScrollToPosition(3);

//scroll to position immediately without animation
recyclerView.scrollToPosition(3);

You can set the view to turn only one page at a time, like a ViewPager, or you can turn pages continuously：

manager.setPagerMode(true or false);

When in PagerView paging mode, you can set the minimum sliding velocity that triggers the paging effect:

manager.setPagerFlingVelocity(3000);

I use the DefaultAnimation class to provide animation, which is inherited from StackAnimation, and you can inherit both classes to achieve the desired animation effect:

DefaultAnimation animation = new DefaultAnimation(ScrollOrientation.BOTTOM_TO_TOP, visibleCount);
manager.setAnimation(animation);

I use the DefaultLayout class to implement the layout of items, which inherits from StackLayout. You can inherit both classes to achieve the layout effect you want：

StackLayoutManager manager = new StackLayoutManager(ScrollOrientation.BOTTOM_TO_TOP, 
                visibleCount,
                DefaultAnimation.class,
                DefaultLayout.class);

Sample

You can clone or download this project to your computer and install sample apk on your phone to see the effect.

License

MIT License See MIT License

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