add ArrayRecyclerAdapter and refactor CommonRecyclerAdapter

Author: zeng1990java

commonadapter/src/main/java/com/github/zeng1990java/commonadapter/ArrayRecyclerAdapter.java

@@ -0,0 +1,161 @@
+package com.github.zeng1990java.commonadapter;
+
+import android.support.annotation.NonNull;
+import android.support.v7.widget.RecyclerView;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+/**
+ * $desc
+ *
+ * @author zxb
+ * @date 16/8/6 下午5:10
+ */
+public abstract class ArrayRecyclerAdapter<T, VH extends RecyclerView.ViewHolder> extends RecyclerView.Adapter<VH> {
+
+    protected List<T> mDatas;
+
+    public ArrayRecyclerAdapter(){
+        this(new ArrayList<T>());
+    }
+
+    public ArrayRecyclerAdapter(@NonNull List<T> datas){
+        mDatas = datas;
+    }
+
+    @Override
+    public int getItemCount() {
+        return mDatas.size();
+    }
+
+    public T getItem(int position){
+        return mDatas.get(position);
+    }
+
+    public List<T> getData(){
+        return mDatas;
+    }
+
+    public void add(T data){
+        add(0, data);
+    }
+
+    public void add(int position, T data){
+        mDatas.add(position, data);
+        notifyItemInserted(position+getAdapterPosition(0));
+    }
+
+    public void remove(int position){
+        remove(position, null);
+    }
+
+    public void remove(int position, T data){
+        mDatas.remove(position);
+        notifyItemRemoved(position+getAdapterPosition(0));
+    }
+
+    public void addAll(@NonNull List<T> datas){
+        int positionStart = mDatas.size();
+        mDatas.addAll(datas);
+        notifyItemRangeInserted(positionStart + getAdapterPosition(0), datas.size());
+    }
+
+    public void replaceAll(@NonNull List<T> datas){
+        if (mDatas.equals(datas)){
+            return;
+        }
+
+        if (mDatas.isEmpty() && datas.isEmpty()) {
+            return;
+        }
+
+        if (mDatas.isEmpty()){
+            addAll(datas);
+            return;
+        }
+
+        if (datas.isEmpty()){
+            clear();
+            return;
+        }
+
+        // 首先将就列表有，新列表没有的从旧列表中移除
+        retainAll(datas);
+
+        // 如果列表空了，直接插入全部就好了
+        if (mDatas.isEmpty()) {
+            addAll(datas);
+            return;
+        }
+
+        // 遍历新列表，对旧列表数据进行更新，增加，删除
+        for (int indexNew = 0; indexNew < datas.size(); indexNew++) {
+
+            T item = datas.get(indexNew);
+            int indexOld = mDatas.indexOf(item);
+            if (indexOld == -1){
+                add(indexNew, item);
+            }else if (indexNew == indexOld){
+                set(indexNew, item);
+            }else {
+                mDatas.remove(indexOld);
+                mDatas.add(indexNew, item);
+                notifyItemMoved(indexOld + getAdapterPosition(0), indexNew + getAdapterPosition(0));
+            }
+        }
+
+    }
+
+    public void set(int postion, T data){
+        mDatas.set(postion, data);
+        notifyItemChanged(getAdapterPosition(0) + postion);
+    }
+
+    public void set(T oldData, T newData){
+        if (contains(oldData)) {
+            set(mDatas.indexOf(oldData), newData);
+        }
+    }
+
+    public void retainAll(@NonNull List<T> datas){
+        if (datas.isEmpty()){
+            clear();
+            return;
+        }
+        Iterator<T> iterator = mDatas.iterator();
+        while (iterator.hasNext()){
+            T next = iterator.next();
+            if (datas.contains(next)){
+                continue;
+            }
+            int index = mDatas.indexOf(next);
+            iterator.remove();
+            notifyItemRemoved(getAdapterPosition(0) + index);
+        }
+
+    }
+
+    public void clear(){
+        if (mDatas.isEmpty()){
+            return;
+        }
+        int size = mDatas.size();
+        mDatas.clear();
+        notifyItemRangeRemoved(getAdapterPosition(0), size);
+    }
+
+    public boolean contains(T data){
+        return mDatas.contains(data);
+    }
+
+    /**
+     * real data position
+     * @param dataPosition
+     * @return
+     */
+    protected int getAdapterPosition(int dataPosition){
+        return dataPosition;
+    }
+}

commonadapter/src/main/java/com/github/zeng1990java/commonadapter/CommonRecyclerAdapter.java

@@ -12,7 +12,6 @@
 import android.widget.LinearLayout;
 
 import java.util.ArrayList;
-import java.util.Iterator;
 import java.util.List;
 
 /**
@@ -21,7 +20,7 @@
  * @author zxb
  * @date 16/7/16 下午11:54
  */
-public abstract class CommonRecyclerAdapter<T> extends RecyclerView.Adapter<ViewHolder> {
+public abstract class CommonRecyclerAdapter<T> extends ArrayRecyclerAdapter<T,ViewHolder> {
 
     public interface OnItemClickListener{
         void onItemClick(ViewHolder holder, int position);
@@ -37,7 +36,6 @@ public interface OnLoadMoreListener{
 
     private Context mContext;
     private int mLayoutId;
-    private List<T> mDatas;
     private LayoutInflater mInflater;
 
     private LinearLayout mHeaderLayout;
@@ -292,122 +290,6 @@ public int getItemLayoutResId(T data, int position){
         return mLayoutId;
     }
 
-    public T getItem(int position){
-        return mDatas.get(position);
-    }
-
-    public List<T> getData(){
-        return mDatas;
-    }
-
-    public void add(T data){
-        add(0, data);
-    }
-
-    public void add(int position, T data){
-        mDatas.add(position, data);
-        notifyItemInserted(position+getHeaderViewItemCount());
-    }
-
-    public void remove(int position, T data){
-        mDatas.remove(position);
-        notifyItemRemoved(position+getHeaderViewItemCount());
-    }
-
-    public void addAll(@NonNull List<T> datas){
-        int positionStart = mDatas.size();
-        mDatas.addAll(datas);
-        notifyItemRangeInserted(positionStart + getHeaderViewItemCount(), datas.size());
-    }
-
-    public void replaceAll(@NonNull List<T> datas){
-        if (mDatas.equals(datas)){
-            return;
-        }
-
-        if (mDatas.isEmpty() && datas.isEmpty()) {
-            return;
-        }
-
-        if (mDatas.isEmpty()){
-            addAll(datas);
-            return;
-        }
-
-        if (datas.isEmpty()){
-            clear();
-            return;
-        }
-
-        // 首先将就列表有，新列表没有的从旧列表中移除
-        retainAll(datas);
-
-        // 如果列表空了，直接插入全部就好了
-        if (mDatas.isEmpty()) {
-            addAll(datas);
-            return;
-        }
-
-        // 遍历新列表，对旧列表数据进行更新，增加，删除
-        for (int indexNew = 0; indexNew < datas.size(); indexNew++) {
-
-            T item = datas.get(indexNew);
-            int indexOld = mDatas.indexOf(item);
-            if (indexOld == -1){
-                add(indexNew, item);
-            }else if (indexNew == indexOld){
-                set(indexNew, item);
-            }else {
-                mDatas.remove(indexOld);
-                mDatas.add(indexNew, item);
-                notifyItemMoved(indexOld + getHeaderViewItemCount(), indexNew + getHeaderViewItemCount());
-            }
-        }
-
-    }
-
-    public void set(int postion, T data){
-        mDatas.set(postion, data);
-        notifyItemChanged(getHeaderViewItemCount() + postion);
-    }
-
-    public void set(T oldData, T newData){
-        if (contains(oldData)) {
-            set(mDatas.indexOf(oldData), newData);
-        }
-    }
-
-    public void retainAll(@NonNull List<T> datas){
-        if (datas.isEmpty()){
-            clear();
-            return;
-        }
-        Iterator<T> iterator = mDatas.iterator();
-        while (iterator.hasNext()){
-            T next = iterator.next();
-            if (datas.contains(next)){
-                continue;
-            }
-            int index = mDatas.indexOf(next);
-            iterator.remove();
-            notifyItemRemoved(getHeaderViewItemCount() + index);
-        }
-
-    }
-
-    public void clear(){
-        if (mDatas.isEmpty()){
-            return;
-        }
-        int size = mDatas.size();
-        mDatas.clear();
-        notifyItemRangeRemoved(getHeaderViewItemCount(), size);
-    }
-
-    public boolean contains(T data){
-        return mDatas.contains(data);
-    }
-
     @Override
     public int getItemCount() {
         return getDataItemCount() + getHeaderViewItemCount() + getFooterViewItemCount() + getLoadMoreViewItemCount();
@@ -461,4 +343,9 @@ private boolean hasFooterView(){
     private boolean hasLoadMoreView(){
         return isHasLoadMore;
     }
+
+    @Override
+    protected int getAdapterPosition(int dataPosition) {
+        return getHeaderViewItemCount() + dataPosition;
+    }
 }