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@blipinsk
Last active October 13, 2017 09:28
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The easiest way to use ViewDataBinding with RecyclerView.ViewHolder
/*
* Copyright 2017 Bartosz Lipinski
*
* 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.
*/
public class BindingViewHolder<BINDING extends ViewDataBinding> extends RecyclerView.ViewHolder {
private final BINDING binding;
public final BINDING binding() {
return binding;
}
protected BindingViewHolder(BINDING binding) {
super(binding.getRoot());
this.binding = binding;
}
public static <T extends ViewDataBinding> BindingViewHolder<T> with(T binding) {
return new BindingViewHolder<>(binding);
}
public static Inflater withLayout(@LayoutRes int layoutRes) {
return new Inflater(layoutRes);
}
public static <T extends ViewDataBinding> T inflateBinding(@LayoutRes int layoutRes,
ViewGroup container) {
return DataBindingUtil.inflate(LayoutInflater.from(container.getContext()),
layoutRes, container, false);
}
public final static class Inflater {
private final int layoutRes;
Inflater(@LayoutRes int layoutRes) {
this.layoutRes = layoutRes;
}
@SuppressWarnings("unchecked")
public final <T extends ViewDataBinding> BindingViewHolder<T> inflatedIn(ViewGroup container) {
if (container == null) {
throw new NullPointerException("container == null");
}
return (BindingViewHolder<T>) with(inflateBinding(layoutRes, container));
}
}
}
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