RecyclerView Adapter 封装

用了近一年的recyclerview 这里给出RecyclerView Adapter 封装简化模式

  包括item点击事件 以及局部点击事件，这将会为您的代码提供极高的简便  包括局部添加 绑定 插入 更新等等 

import android.graphics.Color;import android.support.design.widget.Snackbar;import android.support.v7.widget.RecyclerView;import android.text.TextUtils;import android.util.SparseArray;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.TextView;/** * ClassName BaseRecyclerAdapter * Description * Company  * author  youxuan  E-mail:[e-mail] * date createTime：2015/9/10 10:05 * version */public abstract class BaseRecyclerAdapter extends RecyclerView.Adapter<BaseRecyclerAdapter.ViewHolder> {    public BaseRecyclerAdapter() {    }    public abstract int bindView(int viewtype);    public Object getItem(int position) {        return null;    }    @Override    public ViewHolder onCreateViewHolder(ViewGroup viewGroup, int viewtype) {        return new ViewHolder(LayoutInflater.from(viewGroup.getContext())                .inflate(bindView(viewtype), viewGroup, false));    }    public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener, View.OnLongClickListener {        private SparseArray<View> holder = null;        public ViewHolder(View itemView) {            super(itemView);            itemView.setOnClickListener(this);            itemView.setOnLongClickListener(this);        }        /**         * 获取子控件         *         * @param id         * @param <T>         * @return         */        public <T extends View> T obtainView(int id) {            if (null == holder) holder = new SparseArray<>();            View view = holder.get(id);            if (null != view) return (T) view;            view = itemView.findViewById(id);            if (null == view) return null;            holder.put(id, view);            return (T) view;        }        public <T> T obtainView(int id, Class<T> viewClazz) {            View view = obtainView(id);            if (null == view) return null;            return (T) view;        }        public boolean bindChildClick(int id) {            View view = obtainView(id);            if (view == null) return false;            view.setOnClickListener(this);            return true;        }        /**         * 子控件绑定局部点击事件         *         * @param v         * @return         */        public boolean bindChildClick(View v) {            if (v == null) return false;            if (obtainView(v.getId()) == null)                return false;            v.setOnClickListener(this);            return true;        }        public boolean bindChildLongClick(int id) {            View view = obtainView(id);            if (view == null) return false;            view.setOnLongClickListener(this);            return true;        }        public boolean bindChildLongClick(View v) {            if (v == null) return false;            if (obtainView(v.getId()) == null)                return false;            v.setOnLongClickListener(this);            return true;        }        /**         * 文本控件赋值         *         * @param id         * @param text         */        public void setText(int id, CharSequence text) {            View view = obtainView(id);            if (view instanceof TextView) {                ((TextView) view).setText(text);            }        }        @Override        public boolean onLongClick(View v) {            if (onItemLongClickListener != null && v.getId() == this.itemView.getId()) {                onItemLongClickListener.onItemLongClick(BaseRecyclerAdapter.this, this, v, getAdapterPosition());                return true;            } else if (onItemChildLongClickListener != null && v.getId() != this.itemView.getId()) {                onItemChildLongClickListener.onItemChildLongClick(BaseRecyclerAdapter.this, this, v, getAdapterPosition());                return true;            }            return false;        }        @Override        public void onClick(View v) {            if (onItemClickListener != null && v.getId() == this.itemView.getId()) {                onItemClickListener.onItemClick(BaseRecyclerAdapter.this, this, v, getAdapterPosition());            } else if (onItemChildClickListener != null && v.getId() != this.itemView.getId()) {                onItemChildClickListener.onItemChildClick(BaseRecyclerAdapter.this, this, v, getAdapterPosition());            }        }    }    protected OnItemClickListener onItemClickListener;    public OnItemClickListener getOnItemClickListener() {        return onItemClickListener;    }    public void setOnItemClickListener(OnItemClickListener onItemClickListener) {        this.onItemClickListener = onItemClickListener;    }    protected OnItemLongClickListener onItemLongClickListener;    public OnItemLongClickListener getOnItemLongClickListener() {        return onItemLongClickListener;    }    public void setOnItemLongClickListener(OnItemLongClickListener onItemLongClickListener) {        this.onItemLongClickListener = onItemLongClickListener;    }    public interface OnItemClickListener {        void onItemClick(BaseRecyclerAdapter adapter, ViewHolder holder, View view, int position);    }    public interface OnItemLongClickListener {        void onItemLongClick(BaseRecyclerAdapter adapter, ViewHolder holder, View view, int position);    }    public interface OnItemChildClickListener {        void onItemChildClick(BaseRecyclerAdapter adapter, ViewHolder holder, View view, int position);    }    public interface OnItemChildLongClickListener {        void onItemChildLongClick(BaseRecyclerAdapter adapter, ViewHolder holder, View view, int position);    }    protected OnItemChildClickListener onItemChildClickListener;    protected OnItemChildLongClickListener onItemChildLongClickListener;    public OnItemChildLongClickListener getOnItemChildLongClickListener() {        return onItemChildLongClickListener;    }    public void setOnItemChildLongClickListener(OnItemChildLongClickListener onItemChildLongClickListener) {        this.onItemChildLongClickListener = onItemChildLongClickListener;    }    public OnItemChildClickListener getOnItemChildClickListener() {        return onItemChildClickListener;    }    public void setOnItemChildClickListener(OnItemChildClickListener onItemChildClickListener) {        this.onItemChildClickListener = onItemChildClickListener;    }    /**     * 蓝底 白字     *     * @param view     * @param snack     */    public void showSnack(View view, CharSequence snack) {        if (view == null) return;        if (TextUtils.isEmpty(snack)) return;        Snackbar snackbar = Snackbar.make(view, snack, Snackbar.LENGTH_SHORT);        snackbar.getView().setBackgroundColor(view.getContext().getResources().getColor(R.color.title_background));        ((TextView) snackbar.getView().findViewById(android.support.design.R.id.snackbar_text)).setTextColor(Color.WHITE);        snackbar.show();    }    /**     * 蓝底 白字     *     * @param view     * @param resId     */    public void showSnack(View view, int resId) {        if (view == null) return;        String resStr = view.getContext().getResources().getString(resId);        if (TextUtils.isEmpty(resStr)) return;        Snackbar snackbar = Snackbar.make(view, resId, Snackbar.LENGTH_SHORT);        snackbar.getView().setBackgroundColor(view.getContext().getResources().getColor(R.color.title_background));        ((TextView) snackbar.getView().findViewById(android.support.design.R.id.snackbar_text)).setTextColor(Color.WHITE);        snackbar.show();    }}

数组的recyclerview adapter:

import java.util.ArrayList;import java.util.List;/** * ClassName ArrayRecyclerAdapter * Description * Company  * author  youxuan  E-mail:[e-mail] * date createTime：2015/9/16 9:22 * version */public abstract class BaseArrayRecyclerAdapter<T> extends BaseRecyclerAdapter {    public final List<T> dataList = new ArrayList<T>();    public List<T> getData() {        return dataList;    }    public T getData(int position) {        if (position < 0 || position >= dataList.size()) return null;        return dataList.get(position);    }    public boolean bindData(boolean isRefresh, List<T> datas) {        if (datas == null) return false;        if (isRefresh) dataList.clear();        boolean b = dataList.addAll(datas);        notifyDataSetChanged();        return b;    }    public void clearData() {        dataList.clear();        notifyDataSetChanged();    }    @Override    public T getItem(int position) {        if (position < 0 || position >= dataList.size()) return null;        return dataList.get(position);    }    public boolean addItem(int position, T t) {        if (t == null) return false;        if (position < 0 || position > dataList.size()) return false;        if (dataList.contains(t)) return false;        dataList.add(position, t);        notifyItemInserted(position);        return true;    }    public boolean addItems(int pos, List<? extends T> datas) {        if (datas == null) return false;        if (datas.contains(datas)) return false;        dataList.addAll(pos, datas);        notifyItemRangeInserted(pos, datas.size());        return true;    }    public boolean addItems(List<? extends T> datas) {        if (datas == null) return false;        if (datas.contains(datas)) return false;        dataList.addAll(datas);        notifyItemRangeInserted(getItemCount() - datas.size() >= 0 ? getItemCount() - datas.size() : 0, datas.size());        return true;    }    public boolean addItem(T t) {        if (t == null) return false;        if (dataList.contains(t)) return false;        boolean b = dataList.add(t);        notifyItemInserted(dataList.size() - 1);        return b;    }    public boolean updateItem(int position) {        if (position < 0 || position >= dataList.size()) return false;        notifyItemChanged(position);        return true;    }    public boolean updateItem(T t) {        if (t == null) return false;        int index = dataList.indexOf(t);        if (index >= 0) {            dataList.set(index, t);            notifyItemChanged(index);            return true;        }        return false;    }    public boolean updateItem(int position, T t) {        if (position < 0 || position >= dataList.size()) return false;        if (t == null) return false;        dataList.set(position, t);        notifyItemChanged(position);        return true;    }    public boolean removeItem(int position) {        if (position < 0 || position >= dataList.size()) return false;        dataList.remove(position);        notifyItemRemoved(position);        return true;    }    public boolean removeItem(T t) {        if (t == null) return false;        int index = dataList.indexOf(t);        if (index >= 0) {            dataList.remove(index);            notifyItemRemoved(index);            return true;        }        return false;    }    @Override    public void onBindViewHolder(ViewHolder holder, int position) {        onBindHoder(holder, getData(position), position);    }    public abstract void onBindHoder(ViewHolder holder, T t, int position);    @Override    public int getItemCount() {        return dataList.size();    }}

带header footer 的recyclerView adapter:

import java.util.ArrayList;import java.util.List;/** * @author xuanyouwu * @email [e-mail] * @time 2016-03-31 14:27 */public abstract class HFRecyclerAdapter<H, T, F> extends BaseRecyclerAdapter {    private static final int HEADER_VIEW_TYPE = -2016;    private static final int FOOTER_VIEW_TYPE = -2015;    private final List<T> dataList = new ArrayList<T>();    private final List<H> headerDataList = new ArrayList<H>();    private final List<F> footerDataList = new ArrayList<F>();    public List<T> getDataList() {        return dataList;    }    public List<H> getHeaderDataList() {        return headerDataList;    }    public List<F> getFooterDataList() {        return footerDataList;    }    public boolean isHeader(int pos) {        if (pos >= 0 && pos < getmHeaderCount())            return true;        return false;    }    public boolean isFooter(int pos) {        if (pos >= getItemCount() - getmFooterCount() && pos < getItemCount())            return true;        return false;    }    public boolean isItem(int pos) {        if (pos >= getmHeaderCount() && pos < getItemCount() - getmFooterCount())            return true;        return false;    }    @Override    public T getItem(int position) {        if (isItem(position)) {            int realPos = position - getmHeaderCount();            if (realPos >= 0 && realPos < dataList.size())                return dataList.get(realPos);        }        return null;    }    public H getHeaderItem(int pos) {        if (isHeader(pos)) {            if (pos >= 0 && pos < headerDataList.size())                return headerDataList.get(pos);        }        return null;    }    public F getFooterItem(int pos) {        if (isFooter(pos)) {            int realPos = getItemCount() - 1 - pos;            if (realPos >= 0 && realPos < footerDataList.size())                return footerDataList.get(realPos);        }        return null;    }    public boolean bindHeader(List<H> datas, boolean updateUI) {        if (datas == null) return false;        if (getHeaderDataList().containsAll(datas)) return false;        getHeaderDataList().clear();        boolean addSuc = getHeaderDataList().addAll(datas);        if (updateUI) {            this.notifyDataSetChanged();        }        return addSuc;    }    public boolean bindFooter(List<F> datas) {        if (datas == null) return false;        if (getFooterDataList().containsAll(datas)) return false;        getFooterDataList().clear();        boolean addSuc = getFooterDataList().addAll(datas);        this.notifyItemRangeChanged(getItemCount() - getmFooterCount(), getItemCount());        return addSuc;    }    public boolean bindData(boolean isRefresh, List<T> datas) {        if (datas == null) return false;        if (isRefresh) {            getDataList().clear();        }        boolean addSuc = getDataList().addAll(datas);        this.notifyDataSetChanged();        return addSuc;    }    public boolean addItem(T t) {        if (t == null) return false;        if (getDataList().contains(t)) return false;        boolean add = getDataList().add(t);        this.notifyItemInserted(getmItemCount() + getmHeaderCount() - 1);        return add;    }    public boolean addItem(T t, int pos) {        if (t == null) return false;        if (pos < getmHeaderCount() || pos > getmItemCount() + getmHeaderCount()) return false;        if (getDataList().contains(t)) return false;        getDataList().add(pos - getmHeaderCount(), t);        this.notifyItemInserted(pos);        return true;    }    public void updateItem(int position) {        this.notifyItemChanged(position);    }    public boolean removeItem(int position) {        if (isItem(position)) {            int realPos = position - getmHeaderCount();            getDataList().remove(realPos);            this.notifyItemRemoved(position);            return true;        } else if (isHeader(position)) {            getHeaderDataList().remove(position);            this.notifyItemRemoved(position);            return true;        } else if (isFooter(position)) {            getFooterDataList().remove(position - getmHeaderCount() - getmItemCount());            this.notifyItemRemoved(position);            return true;        }        return false;    }    @Override    public final int getItemViewType(int position) {        if (isHeader(position)) {            return getmHeaderViewType();        } else if (isFooter(position)) {            return getmFooterViewType();        } else {            return getmItemViewType(position);        }    }    /**     * 中间条目的viewtype     *     * @param pos     * @return     */    public int getmItemViewType(int pos) {        return 0;    }    /**     * header item的viewType     *     * @return     */    public final int getmHeaderViewType() {        return HEADER_VIEW_TYPE;    }    /**     * footer item的viewType     *     * @return     */    public final int getmFooterViewType() {        return FOOTER_VIEW_TYPE;    }    @Override    public final int bindView(int viewtype) {        if (viewtype == getmHeaderViewType()) {            return bindHeaderView();        } else if (viewtype == getmFooterViewType()) {            return bindFooterView();        } else {            return bindItemView(viewtype);        }    }    /**     * bind center view     *     * @param itemViewType     * @return     */    public abstract int bindItemView(int itemViewType);    /**     * bind header view     *     * @return     */    public abstract int bindHeaderView();    /**     * bind footer view     *     * @return     */    public abstract int bindFooterView();    @Override    public final void onBindViewHolder(ViewHolder holder, int position) {        if (isHeader(position)) {            onBindHeaderHolder(holder, getHeaderItem(position), position);        } else if (isFooter(position)) {            onBindFooterHolder(holder, getFooterItem(position), position);        } else {            onBindItemHolder(holder, getItem(position), position);        }    }    /**     * bind header     *     * @param holder     * @param h     * @param position     */    public abstract void onBindHeaderHolder(ViewHolder holder, H h, int position);    /**     * bind center     *     * @param holder     * @param t     * @param position     */    public abstract void onBindItemHolder(ViewHolder holder, T t, int position);    /**     * bind footer     *     * @param holder     * @param f     * @param position     */    public abstract void onBindFooterHolder(ViewHolder holder, F f, int position);    @Override    public final int getItemCount() {        return getmHeaderCount() + getmItemCount() + getmFooterCount();    }    /**     * header 条目数量     *     * @return     */    public int getmItemCount() {        return dataList.size();    }    /**     * 中间 条目数量     *     * @return     */    public int getmHeaderCount() {        return headerDataList.size();    }    /**     * footer 条目数量     *     * @return     */    public int getmFooterCount() {        return footerDataList.size();    }}

简化版的header adapter:

public abstract class HeaderRecyclerAdapter<H, T, F> extends HFRecyclerAdapter<H, T, F> {    @Override    public int bindFooterView() {        return 0;    }    @Override    public void onBindFooterHolder(ViewHolder holder, F f, int position) {    }}

使用实例：

itemClick 和局部点击事件: