开篇
相信大家在项目的开发中都用到了QuickAdapter，也感觉到了它确实提升了一些我们的开发效率。不仅仅你用了，我也用了，但是我还是觉得它还有很大的提升空间。为此，我特意抽时间封装了此RecyclerView适配器。
效果截屏
SimpleAdapter.png
PullToRefreshRecyclerView
立即体验
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传送门： 1、封装了4中 2、获取position位置的 3、封装 常用方法： 4、绑定 5、根据不同的 1、简单使用示例： 2、各种事件监听： 2.1、 2.2、 2.3、 2.4、 使用介绍就到这里。简析源码
public abstract class BaseHeaderFooterAdapter<H, D, F, E, VH extends BaseHeaderFooterAdapter.BaseViewHolder> extends RecyclerView.Adapter<VH> {}ViewType类型：H——头（header）、D——数据（data）、F——尾（footer）、E——空列表（empty） /**
* header 视图
*/
public static final int TYPE_HEADER = 1000; /**
* data 数据视图
*/
public static final int TYPE_DATA = 1001; /**
* footer 视图
*/
public static final int TYPE_FOOTER = 1002; /**
* 空列表视图
*/
public static final int TYPE_EMPTY = 1003; private List<H> headers = new ArrayList<>(); private List<D> data = new ArrayList<>(); private List<F> footers = new ArrayList<>(); private List<E> empties = new ArrayList<>();
ViewType。 @Override
public int getItemCount() { return getHeaderSize() + getInternalSize() + getFooterSize();
} @ViewType
@Override
public int getItemViewType(int position) { if (position >= getHeaderSize() + getInternalSize() + getFooterSize()) return UNKNOWN; if (position >= getHeaderSize() + getInternalSize()) return TYPE_FOOTER; if (position >= getHeaderSize()) return isEmptyData() ? TYPE_EMPTY : TYPE_DATA; if (position >= 0) return TYPE_HEADER; return UNKNOWN;
} private int getInternalSize() { return isEmptyData() ? getEmptySize() : getDataSize();
}BaseViewHolder，添加一些常用方法。public static class BaseViewHolder extends RecyclerView.ViewHolder {}public <V extends View> V findViewById(@IdRes int id) public void setText(@IdRes int id, CharSequence txt) public void setTextColor(@IdRes int id, @ColorInt int color) public void setTextSize(@IdRes int id, float size) public void setTextSize(@IdRes int id, int unit, float size) public void setVisibility(@IdRes int id, int visibility) public void setSelected(@IdRes int id, boolean selected) public void setEnabled(@IdRes int id, boolean enable) public void setBackgroundColor(@IdRes int id, @ColorInt int color) public void setBackgroundResource(@IdRes int id, @DrawableRes int resId) public void setBackground(@IdRes int id, Drawable background) public void setTag(@IdRes int id, final Object tag) public void setTag(@IdRes int id, int key, final Object tag) void setPositionTag(int position) void addOnItemClickListener(View.OnClickListener listener) void addOnItemLongClickListener(View.OnLongClickListener listener) void addOnChildClickListener(@IdRes int id, View.OnClickListener listener) void addOnChildLongClickListener(@IdRes int id, View.OnLongClickListener listener)View。 @CallSuper
@Override
public void onBindViewHolder(@NonNull VH holder, int position) {
holder.setPositionTag(position);
holder.addOnItemClickListener(onItemClickListener == null ? null : getDefaultItemClickListener());
holder.addOnItemLongClickListener(onItemLongClickListener == null ? null : getDefaultItemLongClickListener()); switch (getItemViewType(position)) { case TYPE_HEADER:
onBindHeaderViewHolder(holder, position, getHeaderAt(position)); break; case TYPE_DATA:
onBindDataViewHolder(holder, position, getDataAt(position)); break; case TYPE_FOOTER:
onBindFooterViewHolder(holder, position, getFooterAt(position)); break; case TYPE_EMPTY:
onBindEmptyViewHolder(holder, position, getEmptyAt(position)); break; case UNKNOWN: break;
}
}ViewType创建不同View视图：SimpleAdapter。public class SimpleAdapter<H, D, F, E> extends BaseHeaderFooterAdapter<H, D, F, E, BaseHeaderFooterAdapter.BaseViewHolder> { public SimpleAdapter() {
} public SimpleAdapter(@LayoutRes int dataLayoutId) { super(dataLayoutId);
} @NonNull
@Override
public BaseViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int viewType) { switch (viewType) { case TYPE_HEADER: if (getHeaderLayoutId() == -1) throw new IllegalArgumentException(getClass().getSimpleName() + " : please set header layout first."); return new BaseViewHolder(LayoutInflater.from(viewGroup.getContext()).inflate(getHeaderLayoutId(), viewGroup, false)); case TYPE_DATA: if (getDataLayoutId() == -1) throw new IllegalArgumentException(getClass().getSimpleName() + " : please set footer layout first."); return new BaseViewHolder(LayoutInflater.from(viewGroup.getContext()).inflate(getDataLayoutId(), viewGroup, false)); case TYPE_FOOTER: if (getFooterLayoutId() == -1) throw new IllegalArgumentException(getClass().getSimpleName() + " : please set footer layout first."); return new BaseViewHolder(LayoutInflater.from(viewGroup.getContext()).inflate(getFooterLayoutId(), viewGroup, false)); case TYPE_EMPTY: return new BaseViewHolder(LayoutInflater.from(viewGroup.getContext()).inflate(getEmptyLayoutId() == -1 ? R.layout.recycler_default_empty_list_layout : getEmptyLayoutId(), viewGroup, false)); default:
TextView textView = new TextView(viewGroup.getContext());
textView.setTextColor(Color.RED);
textView.setGravity(Gravity.CENTER);
textView.setText("Unknown view type");
textView.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT)); return new BaseViewHolder(textView);
}
}
}使用示例
RecyclerView recyclerView;
adapter2 = new SimpleAdapter2<MaterielOrderDetail, MaterielDetail, Object>() { @Override
protected void onBindHeaderViewHolder(@NonNull BaseViewHolder holder, int position, MaterielOrderDetail headerBean) {
holder.setText(R.id.tv_company_name, formatValue("公司名称：", headerBean.getOrgName()));
holder.setText(R.id.tv_type, formatValue("\u3000类型：", headerBean.getEventTypeName()));
holder.setText(R.id.tv_warehouse_name, formatValue("仓库名称：", headerBean.getWarehouseName()));
holder.setText(R.id.tv_partner_name, formatValue("供应商：", headerBean.getPartnerName())); if (headerBean.getCreateTime() > 0) {
holder.setText(R.id.tv_create_time, formatValue("创建时间：", format.format(new Date(headerBean.getCreateTime()))));
} else {
holder.setText(R.id.tv_create_time, "");
}
holder.setText(R.id.tv_creator, formatValue("创建人：", headerBean.getCreatePersonName())); //已经审核通过
if (MaterielMenu.orderStatus.get(2).getKey().equals(headerBean.getStatus())) {
holder.setText(R.id.tv_auditing_time, formatValue("审核时间：", format.format(new Date(headerBean.getApproveTime()))));
holder.setText(R.id.tv_auditor, formatValue("审核人：", headerBean.getApprovePersonName()));
} else {
holder.setText(R.id.tv_auditing_time, formatValue("审核时间：", "--"));
holder.setText(R.id.tv_auditor, formatValue("审核人：", "--"));
}
holder.setText(R.id.tv_storage_type_label, String.format(Locale.CHINA, "%s物料：", opAction1 == IMateriel.OP_ACTION_IN ? "入库" : "出库"));
} @Override
protected void onBindDataViewHolder(@NonNull BaseViewHolder holder, int position, MaterielDetail dataBean) {
holder.setText(R.id.tv_materiel_name, dataBean.getMaterialName()); if (dataBean.getBatchManage()) {
holder.setText(R.id.tv_materiel_batch, String.format(Locale.CHINA, "（%s）", dataBean.getBatch()));
} else {
holder.setText(R.id.tv_materiel_batch, "");
}
holder.setVisibility(R.id.btn_materiel_delete, View.GONE);
holder.setText(R.id.tv_business_unit, formatValue("业务单位：", dataBean.getMultiUnitName()));
holder.setText(R.id.tv_business_number, formatValue("业务数量：", String.valueOf(dataBean.getQuantity())));
holder.setText(R.id.tv_accounting_unit, formatValue("核算单位：", dataBean.getAccountUnitName()));
holder.setText(R.id.tv_accounting_number, formatValue("核算数量：", String.valueOf(dataBean.getAccountQuantity())));
}
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd\u2000HH:mm", Locale.CHINA); CharSequence formatValue(String label, String value) { if (value == null || value.trim().length() == 0) { return label;
}
SpannableString spannableString = new SpannableString(label + value);
spannableString.setSpan(new ForegroundColorSpan(0xFF90FFBE), label.length(), label.length() + value.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); return spannableString;
}
};
adapter2.setHeaderLayoutId(R.layout.breed_fragment_materiel_detail_header);
adapter2.setDataLayoutId(R.layout.breed_list_item_materiel);
adapter2.bindRecyclerView(recyclerView);
adapter2.addHeader(new MaterielOrderDetail());itemView的点击事件监听：public interface OnItemClickListener<H, D, F, E> { //每一条header的点击监听
void onHeaderItemClick(@NonNull View headerItemView, int position, H headerBean); //每一条data的点击监听
void onDataItemClick(@NonNull View dataItemView, int position, D dataBean); //每一条footer的点击监听
void onFooterItemClick(@NonNull View footerItemView, int position, F footerBean); //每一条empty的点击监听
void onEmptyItemClick(@NonNull View emptyItemView, int position, E emptyBean);
}itemView之child view的点击事件监听public interface OnItemChildClickListener<H, D, F, E> { //header child view点击监听
void onHeaderItemChildClick(@NonNull View headerChild, int position, H headerBean); //data child view点击监听
void onDataItemChildClick(@NonNull View dataItemChild, int position, D dataBean); //footer child view点击监听
void onFooterItemChildClick(@NonNull View footerChild, int position, F footerBean); //empty child view点击监听
void onEmptyItemChildClick(@NonNull View emptyChild, int position, E emptyBean);
}itemView的长按事件监听：public interface OnItemLongClickListener<H, D, F, E> { //每一条header的长按监听
boolean onHeaderItemLongClick(@NonNull View headerItemView, int position, H headerBean); //每一条data的长按监听
boolean onDataItemLongClick(@NonNull View dataItemView, int position, D dataBean); //每一条footer的长按监听
boolean onFooterItemLongClick(@NonNull View footerItemView, int position, F footerBean); //每一条empty的长按监听
boolean onEmptyItemLongClick(@NonNull View emptyItemView, int position, E emptyBean);
}itemView之child view的长按事件监听public interface OnItemChildLongClickListener<H, D, F, E> { //header child view长按监听
boolean onHeaderItemChildLongClick(@NonNull View headerChild, int position, H headerBean); //data child view长按监听
boolean onDataItemChildLongClick(@NonNull View dataItemChild, int position, D dataBean); //footer child view长按监听
boolean onFooterItemChildLongClick(@NonNull View footerChild, int position, F footerBean); //empty child view长按监听
boolean onEmptyItemChildLongClick(@NonNull View emptyChild, int position, E emptyBean);
}
如果你觉得还不错的话，在GitHub上给一颗星星支持下吧。谢谢！如果在使用过程中不懂(或需要改进的地方)，可以在评论里给我留言，也可以联系我。
作者：JustinRoom
链接：https://www.jianshu.com/p/23b8ef5c946b
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