SwiftAdapter

SwiftAdapter is an easy to use expandable list recyclerview adapter

• extend one class to get all the features
• easy and quick to setup
• easy to customize

Version

Note: this version is stable but I have not tested on anything outside my own devices and my specific data sets. For best results try to not steer too far away from the sample project.

Preview

A sample app has been included with the project, just compile and run, or install this sample apk. You can also watch a preview video. I'm working on releasing a version to the play store soon.

Import Using Gradle

compile 'com.vkondrav.swiftadapter:swift-adapter:0.2.1'

Quickstart

Extend the SwiftAdapter

private static class Adapter extends SwiftAdapter<Adapter.ViewHolder> {

Declare you main ViewHolder

public class ViewHolder extends RecyclerView.ViewHolder {
  public ViewHolder(View itemView) {
    super(itemView);
  }
}

Override count method to declare how many items of that type you will have

@Override
public int getNumberOfLvl0Items() {
  return 10;
}

Override onCreate method to create a specific type of item

@Override
public ViewHolder onCreateLvl0ItemViewHolder(ViewGroup parent) {
  return new ViewHolder(layoutInflater.inflate(R.layout.lvl0_item_layout, parent, false));
}

Override to bind data to the viewholder

@Override
public void onBindLvl0Item(ViewHolder holder, ItemIndex index) {
}

Advanced

There are 4 Levels where the view holders can exist. Each section hosts the items and sections below it.

• Level 0 Items
• Level 1 Sections
  • Level 1 Items
  • Level 2 Sections
    • Level 2 Items
    • Level 3 Sections
      • Level 3 Items

Each layer has a set of methods to construct it. By overriding these methods you can create each layer of the list

int getNumberOf_()
ViewHolder CreateViewHolder_()
void BindViewHolder_(ViewHolder holder, ItemIndex)

Open and Close each section by calling these methods and passing ItemIndex from that section.

void openCloseLvl1Section(ItemIndex itemIndex);
void openCloseLvl2Section(ItemIndex itemIndex);
void openCloseLvl3Section(ItemIndex itemIndex);

ItemIndex can always be obtained from the specific OnBind Method or by calling getCurrentItemIndex and passing the ViewHolder for that section

public ItemIndex getCurrentItemIndex(T holder)

License

Apache 2.0