- RecyclerAdapter : 支持下拉刷新,上拉加载,添加Header,Footer
- MultiTypeAdapter/CustomMultiTypeAdapter : 针对 复杂数据类型列表 展示Adapter
- gradle依赖
compile 'cn.lemon:RefreshRecyclerView:1.2.2'
compile 'com.android.support:recyclerview-v7:25.4.0'
- xml布局文件
<cn.lemon.view.RefreshRecyclerView
android:id="@+id/recycler_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:refresh_able="true"
app:load_more_able="false"/>
- java代码
mRecyclerView = (RefreshRecyclerView) findViewById(R.id.recycler_view);
mRecyclerView.setSwipeRefreshColors(0xFF437845,0xFFE44F98,0xFF2FAC21);
mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
mRecyclerView.setAdapter(mAdapter);
mRecyclerView.addRefreshAction(new Action() {
@Override
public void onAction() {
getData(true);
}
});
mRecyclerView.setLoadMoreAction(new Action() {
@Override
public void onAction() {
getData(false);
page++;
}
});
mAdapter.setHeader(textView); //添加Header
mAdapter.setFooter(footer); //添加Footer
针对相同数据类型列表,可添加 Header,Footer
自定义 Adapter 应该继承 RecyclerAdapter,如:
class CardRecordAdapter extends RecyclerAdapter<Consumption> {
public CardRecordAdapter(Context context) {
super(context);
}
@Override
public BaseViewHolder<Consumption> onCreateBaseViewHolder(ViewGroup parent, int viewType) {
return new CardRecordHolder(parent);
}
}
复杂数据类型列表的 Adapter,没有 Header,Footer 的概念,每个 Item 对应一个 ViewHolder 注意:通过反射实现,支持 ViewHolder 的带有一个参数(ViewGroup)和无参两种形式构造函数,性能方面微小的损耗。 构造函数为保证反射时能获取到,应该写成 public 静态内部类 或者 public 的单独类。
private MultiTypeAdapter mAdapter = new MultiTypeAdapter(this);
mAdapter.add(ImageViewHolder.class, getImageVirtualData());
mAdapter.addAll(TextViewHolder.class, getTextVirtualData());
mAdapter.addAll(TextImageViewHolder.class, getTextImageVirualData());
mAdapter.addAll(CardRecordHolder.class, getRecordVirtualData());
自定义 ViewHolder 需继承 BaseViewHolder,如:
class CardRecordHolder extends BaseViewHolder<Consumption> {
//当使用MultiTypeAdapter时,务必加上此构造方法
public CardRecordHolder(ViewGroup parent) {
super(parent, R.layout.holder_consume);
}
@Override
public void setData(Consumption object) {
super.setData(object);
name.setText("Demo");
//UI绑定数据
}
@Override
public void onInitializeView() {
super.onInitializeView();
name = findViewById(R.id.name);
//初始化View
}
@Override
public void onItemViewClick(Consumption object) {
super.onItemViewClick(object);
//点击事件
}
}
功能和 MultiTypeAdapter 类似,但避免了反射带来的弊端,这里需要编写实现 IViewHolderFactory 接口,对 viewtype 和 ViewHolder 做映射。
// 映射 viewtype 和 ViewHolder
@Override
public <V extends BaseViewHolder> V getViewHolder(ViewGroup parent, int viewType) {
switch (viewType) {
case VIEW_TYPE_TEXT:
return (V) new TextViewHolder(parent);
case VIEW_TYPE_IAMGE:
return (V) new ImageViewHolder(parent);
case VIEW_TYPE_TEXT_IMAGE:
return (V) new TextImageViewHolder(parent);
case VIEW_TYPE_CARD:
return (V) new CardRecordHolder(parent);
default:
return (V) new TextViewHolder(parent);
}
}
// 绑定数据
mAdapter.add(getImageVirtualData(), VIEW_TYPE_IAMGE);
mAdapter.addAll(getTextVirtualData(), VIEW_TYPE_TEXT);
mAdapter.addAll(getTextImageVirualData(), VIEW_TYPE_TEXT_IMAGE);
mAdapter.addAll(getRecordVirtualData(), VIEW_TYPE_CARD);