public abstract class MultiLayoutRecyclerAdapter extends RecyclerView.Adapter {
public static final int TYPE_FLAG = 1000;
public static final int TYPE_NORMAL = 1;
@LayoutRes
private int layoutRes;
private Context mContext;
private List<T> mDatas = new ArrayList<>();
private List<Integer> mHeaderViewTypes = new ArrayList<>();
private List<Integer> mFooterViewTypes = new ArrayList<>();
private List<HeaderRes> mHeaderViews = new ArrayList<>();
private List<FooterRes> mFooterViews = new ArrayList<>();
private AdapterItemClickListener mAdapterItemClickListener;
private final int NO_HAS = -1001;
private final int HAS = -1002;
public MultiLayoutRecyclerAdapter(@LayoutRes int layoutRes, Context context, List<T> datas) {
this.layoutRes = layoutRes;
this.mContext = context;
this.mDatas = datas;
}
@Override
public MultiLayoutViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
if (mHeaderViewTypes.contains(viewType)) {
return new MultiLayoutViewHolder(mContext, mHeaderViews.get(viewType / TYPE_FLAG).getmView());
}
if (mFooterViewTypes.contains(viewType)) {
int typeIndex = viewType / TYPE_FLAG - mDatas.size() - mHeaderViews.size();
return new MultiLayoutViewHolder(mContext, mFooterViews.get(typeIndex).getmView());
}
return new MultiLayoutViewHolder(mContext, LayoutInflater.from(mContext).inflate(layoutRes, parent, false));
}
@Override
public void onBindViewHolder(MultiLayoutViewHolder holder, final int position) {
if (isHeaderPosition(position)) {
onBindHeaderView(holder, mHeaderViews.get(position).getmLayoutRes());
return;
}
if (isFooterPosition(position)) {
onBinFooterView(holder, mFooterViews.get(position - (getItemCount() - mFooterViews.size())).getmLayoutRes());
return;
}
int realPosition = getRealPosition(position);
if (realPosition < mDatas.size()) {
final T data = mDatas.get(realPosition);
onBindBodyView(holder, data, realPosition);
holder.mItemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if(mAdapterItemClickListener ! = null) { mAdapterItemClickListener.adapterItemClick(data, position); }}}); } } public void setmAdapterItemClickListener(AdapterItemClickListener mAdapterItemClick) { this.mAdapterItemClickListener = mAdapterItemClick; } public interface AdapterItemClickListener<T> { void adapterItemClick(T data, int position); } public abstract void onBindBodyView(MultiLayoutViewHolder holder, T data, int realPosition); private int getRealPosition(int position) {return position - mHeaderViews.size();
}
public void onBinFooterView(MultiLayoutViewHolder holder, int layoutRes) {
}
public void onBindHeaderView(MultiLayoutViewHolder holder, int layoutRes) {
}
private boolean isFooterPosition(int position) {
if (mFooterViews.size() > 0 && position >= getItemCount() - mFooterViews.size() && position < getItemCount()) {
return true;
}
return false;
}
private boolean isHeaderPosition(int position) {
if (mHeaderViews.size() > 0 && position < mHeaderViews.size()) {
return true;
}
return false;
}
@Override
public int getItemCount() {
return mDatas.size() + mHeaderViews.size() + mFooterViews.size();
}
@Override
public int getItemViewType(int position) {
if (mHeaderViews.size() > 0 && position < mHeaderViews.size()) {
mHeaderViewTypes.add(position * TYPE_FLAG);
return position * TYPE_FLAG;
}
if (mFooterViews.size() > 0 && position >= getItemCount() - mFooterViews.size() && position < getItemCount()) {
mFooterViewTypes.add(position * TYPE_FLAG);
return position * TYPE_FLAG;
}
return TYPE_NORMAL;
}
public void addHeaderView(@LayoutRes int layoutRes) {
int position = isHasHeaderRes(layoutRes);
if (position == HAS) {
return; } View view = View.inflate(mContext, layoutRes, null); ViewGroup.LayoutParams lp = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT); view.setLayoutParams(lp); HeaderRes headerRes = new HeaderRes(view, layoutRes); mHeaderViews.add(headerRes); } /** * TODO add no network, * * @param layoutRes */ public void addStateView(@layoutRes int layoutRes) {int position = isHasHeaderRes(layoutRes);if (position == HAS) {
return;
}
View view = View.inflate(mContext, layoutRes, null);
ViewGroup.LayoutParams lp = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
view.setLayoutParams(lp);
HeaderRes headerRes = new HeaderRes(view, layoutRes);
mHeaderViews.add(headerRes);
}
public void addFooterView(@LayoutRes int layoutRes) {
int position = isHasFooterRes(layoutRes);
if (position == HAS) {
return;
}
View view = View.inflate(mContext, layoutRes, null);
ViewGroup.LayoutParams lp = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
view.setLayoutParams(lp);
FooterRes footerRes = new FooterRes(view, layoutRes);
mFooterViews.add(footerRes);
}
public void removeFooterView(@LayoutRes int layoutRes) {
int position = isHasFooterRes(layoutRes);
if (position == HAS) {
mFooterViews.remove(mFooterViews.get(position));
}
}
public void removeHeaderView(@LayoutRes int layoutRes) {
int position = isHasHeaderRes(layoutRes);
if (position == HAS) {
mHeaderViews.remove(mHeaderViews.get(position));
}
}
private int isHasHeaderRes(@LayoutRes int layoutRes) {
for (int i = 0; i < mHeaderViews.size(); i++) {
if (mHeaderViews.get(i).getmLayoutRes() == layoutRes) {
returnHAS; }}return NO_HAS;
}
private int isHasFooterRes(@LayoutRes int layoutRes) {
for (int i = 0; i < mFooterViews.size(); i++) {
if (mFooterViews.get(i).getmLayoutRes() == layoutRes) {
returnHAS; }}return NO_HAS;
}
@Override
public void onAttachedToRecyclerView(RecyclerView recyclerView) {
super.onAttachedToRecyclerView(recyclerView);
RecyclerView.LayoutManager manager = recyclerView.getLayoutManager();
if (manager instanceof GridLayoutManager) {
final GridLayoutManager gridLayoutManager = (GridLayoutManager) manager;
gridLayoutManager.setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() {
@Override
public int getSpanSize(int position) {
if (isHeaderPosition(position) || isFooterPosition(position)) {
return gridLayoutManager.getSpanCount();
} else {
return1; }}}); } } @Override public void onViewAttachedToWindow(MultiLayoutViewHolder holder) { super.onViewAttachedToWindow(holder); ViewGroup.LayoutParams params = holder.mItemView.getLayoutParams();if (params != null && params instanceof StaggeredGridLayoutManager.LayoutParams) {
StaggeredGridLayoutManager.LayoutParams layoutParams = (StaggeredGridLayoutManager.LayoutParams) params;
layoutParams.setFullSpan(isHeaderPosition(holder.getLayoutPosition()) || isFooterPosition(holder.getLayoutPosition()));
}
}Copy the code}
public class MultiLayoutViewHolder extends RecyclerView.ViewHolder {
public View mItemView;
private Context mContext; private SparseArray<View> mViews; public MultiLayoutViewHolder(Context context, View itemView) { super(itemView); this.mContext = context; mViews = new SparseArray<>(); this.mItemView = itemView; //// FIXME: 2017/9/7 Adaptive handling autoutils.autosize (this.mitemview); } public <T extends View> T getView(@IdRes int resId) { View view = mViews.get(resId);if (null == view) {
view = mItemView.findViewById(resId);
mViews.append(resId, view);
}
return (T) view;
}
public MultiLayoutViewHolder setViewText(@IdRes int resId, String text) {
TextView textView = getView(resId);
textView.setText(TextUtils.isEmpty(text) ? "" : text);
return this;
}
public MultiLayoutViewHolder setImageDrawable(@IdRes int resId, @DrawableRes int drawableRes) {
ImageView imageView = getView(resId);
imageView.setImageDrawable(ContextCompat.getDrawable(mContext, drawableRes));
return this;
}
public MultiLayoutViewHolder setOnClickListener(@IdRes int resId, View.OnClickListener clickListener){
View view = getView(resId);
view.setOnClickListener(clickListener);
return this;
}Copy the code}
public class FooterRes {
private View mView;
private
@LayoutRes
int mLayoutRes;
public FooterRes(View mView, int mLayoutRes) {
this.mView = mView;
this.mLayoutRes = mLayoutRes;
}
public View getmView() {
return mView;
}
public void setmView(View mView) {
this.mView = mView;
}
public int getmLayoutRes() {
return mLayoutRes;
}
public void setmLayoutRes(int mLayoutRes) {
this.mLayoutRes = mLayoutRes;
}Copy the code}
public class HeaderRes {
private View mView;
private
@LayoutRes
int mLayoutRes;
public HeaderRes(View mView, int mLayoutRes) {
this.mView = mView;
this.mLayoutRes = mLayoutRes;
}
public View getmView() {
return mView;
}
public void setmView(View mView) {
this.mView = mView;
}
public int getmLayoutRes() {
return mLayoutRes;
}
public void setmLayoutRes(int mLayoutRes) {
this.mLayoutRes = mLayoutRes;
}Copy the code}