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RecyclerViewAdapters

Easy way to build RecyclerView.Adapter. This adapter also has multiple ItemViewType, if needed.

Download

Gradle

1. add JitPack repository to your project root build.gradle.

repositories {

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

2. add the dependency

dependencies {

  compile 'com.github.chuross.recyclerview-adapters:recyclerview-adapters:1.x.x' 
}
 

RxJava2 support

if you use RxJava2, you can use Rx support extension!

This extension provide databinding via Flowable.

dependencies {

  compile 'com.github.chuross.recyclerview-adapters:recyclerview-adapters:1.x.x'
  compile 'com.github.chuross.recyclerview-adapters:recyclerview-adapters-rx:1.x.x' 
}
 

Usage

See sample project.

Header and footer RecyclerView

Basic sample

CompositeRecyclerAdapter compositeAdapter = new CompositeRecyclerAdapter();
  // header ViewItemAdapter header = new ViewItemAdapter(this) {

  @Override
  public int getAdapterId() {

return R.id.header;
  
}
 
}
; header.add(new ViewItem(this, R.layout.item_header_1));
 header.add(new ViewItem(this, R.layout.item_header_2));
  // footer ViewItemAdapter footer = new ViewItemAdapter(this) {
 ... 
}
; footer.add(new ViewItem(this, R.layout.item_footer_1));
  ItemAdapter itemAdapter = new ItemAdapter<String, SOMETHING_VIEW_HOLDER>(this) {

  // Override adapterId, onCreateViewHolder, onBindViewHolder 
}
 itemAdapter.add("hoge");
 itemAdapter.add("fuga");
 itemAdapter.add("piyo");
  // Add all adapters compositeAdapter.add(header);
 compositeAdapter.add(itemAdapter);
 compositeAdapter.add(footer);
  RecyclerView list = //ex (RecyclerView) findViewById(this, R.id.list);
  list.setLayoutManager(new LinearLayoutManager(this));
 list.setAdapter(compositeAdapter);
 // or list.setAdapter(itemAdapter);
 

get child items

LocalAdapterItem localItem = compositeAdapter.getLocalAdapterItem(100);
  localItem.getLocalAdapter();
 localItem.getLocalAdapterPosition();
  // ex) itemAdapter.get(localItem);
 

listeners

ItemAdapter itemAdapter = new ItemAdapter() {
 ... 
}
  // item click itemAdapter.setOnItemClickListener(new OnItemClickListener() {

  void onItemClicked(RecyclerView.ViewHolder holder, int position, String item) {
 ... 
}
 
}
);
  // item long click itemAdapter.setOnItemLongPressListener(new OnItemLongPressedListener() {

void onItemLongPressed(@NonNull RecyclerView.ViewHolder holder, int position, @NonNull T item) {
 ... 
}
 
}
);
 

Helpers

SpanSize Lookup support

GridLayoutManager gridLayoutManager = new GridLayoutManager(this, SPAN_SIZE);
  SpanSizeLookup spanSizeLookup =  new SpanSizeLookupBuilder(compositeAdapter)

.register(viewItem1, SPAN_SIZE)

.register(viewItemAdapter, SPAN_SIZE)

.register(itemAdapter2, SPAN_SIZE)

.build();
  gridLayoutManager.setSpanSizeLookup(spanSizeLookup);
  // You must use CompositeRecyclerAdapter!! recyclerView.setAdapter(compositeRecyclerAdapter);
 

Divider item decoration support

int dividerHeight = getResources().getDimensionPixelSize(R.dimen.divider_height);
  recyclerView.addItemDecoration(new DividerItemDecorationBuilder(compositeAdapter)

.dividerHeight(dividerHeight)

.dividerColor(Color.BLACK)

.register(itemAdapter1)

.register(AppendButtonViewItem.class)

.build());
 

Grid padding support

int padding = getResources().getDimensionPixelSize(R.dimen.padding);
  recyclerView.addItemDecoration(new GridPaddingItemDecorationBuilder(compositeAdapter, padding, SPAN_SIZE)

.paddingType(GridPaddingItemDecorationBuilder.PaddingType.BOTH)

.register(visibleChangeButton)

.register(itemAdapter2)

.register(AppendButtonViewItem.class)

.build());
 

Item drag support

ItemTouchHelper dragHelper = new DragItemTouchHelperBuilder(compositeAdapter)

.dragFlag(ItemTouchHelper.UP)

.dragFlag(ItemTouchHelper.DOWN)

.register(ItemAdapter3.class)

.build();

 dragHelper.attachToRecyclerView(recyclerView);
 

License

Copyright 2017 chuross  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.