优化BaseViewHolder，减少异常信息

ListCycleAdapter可设置是否循环点击事件优化，防止嵌套时抢占事件 demo举例完善
weimingjue · Aug 23, 2020 · 9cbc286 · 9cbc286
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diff --git a/README.md b/README.md
@@ -84,12 +84,61 @@ BaseAdapterRvList<AdapterMainListBinding, String> adapter = BaseAdapterRvList.cr
         @NonNull
         @Override
         public BaseViewHolder<AdapterMainListBinding> onCreateListViewHolder(@NonNull ViewGroup parent) {
-            BaseViewHolder<AdapterMainListBinding> holder = super.onCreateListViewHolder(parent);
+            BaseViewHolder<AdapterMainListBinding> holder = super.onCreateListViewHolder(parent);//也可以不用super
             holder.itemView.setBackgroundColor(0xffeeeeee);
             return holder;
         }
     }
 ```
+adapter里有个button，点完后还要写个回调给Activity？？？反正我是不喜欢：
+```
+        public void onBindListViewHolder(@NonNull BaseViewHolder<AdapterMainListBinding> holder, int listPosition, TestBean bean) {
+            setItemViewClick(holder.getBinding().btButton, holder);
+        }
+        ...
+        adapter.setOnItemClickListener(new OnItemClickListener() {
+            @Override
+            public void onItemClick(@NonNull View view, int listPosition) {
+                switch (view.getId()) {
+                    case R.id.bt_button:
+                        toast("没想到吧，还能这样玩：" + listPosition);
+                        break;
+                    default:
+                        toast("你点击了整个条目：" + listPosition);
+                        break;
+                }
+            }
+        });
+```
+adapter里又套了一个RecyclerView，简直是回调地狱啊...完全受不了：
+```
+        public void onBindListViewHolder(@NonNull BaseViewHolder<AdapterMainListBinding> holder, int listPosition, TestBean bean) {
+            //需提前setAdapter（在bind或者每次create时）
+            setItemRvData(holder.getBinding().rvItemList, holder, bean.itemTextList);
+        ...
+        adapter.setOnItemClickListener(new OnItemItemClickListener() {
+            @Override
+            public void onParentItemClick(@NonNull View view, int parentPosition) {
+                toast("你点击了外层：" + parentPosition);
+            }
+
+            @Override
+            public void onChildItemClick(@NonNull View view, int parentPosition, int childPosition) {
+                toast("你点击了外层：" + parentPosition + "，内层：" + childPosition);
+            }
+
+            @Override
+            public void onParentHeaderClick(@NonNull View view) {
+                toast("你点击了外层：header");
+            }
+
+            @Override
+            public void onChildHeaderClick(@NonNull View view, int parentPosition) {
+                toast("你点击了外层：" + parentPosition + "，内层：header");
+            }
+            //...footer、longClick等都有，需要多看看
+        });
+```
 ViewPager的Fragment更简单
 ```
 mVp.setAdapter(new BaseFragmentPagerAdapter(getSupportFragmentManager(), mFrags));
@@ -131,7 +180,7 @@ allprojects {
 
 不需要layoutId的混淆要求：
 ```
-#框架特殊要求
+# 框架特殊要求
 # 根据泛型获取res资源需要
 -keep class * extends androidx.databinding.ViewDataBinding
 ```
diff --git a/adapters/build.gradle b/adapters/build.gradle
@@ -30,5 +30,5 @@ dependencies {
     implementation 'com.zhy:flowlayout-lib:1.0.3'
 
     //自己的适用于超复杂列表样式，如：聊天、首页等
-    api 'com.github.weimingjue:BaseContainerAdapter:3.0.2'
+    api 'com.github.weimingjue:BaseContainerAdapter:3.0.3'
 }
diff --git a/adapters/src/main/java/com/wang/adapters/adapter/BaseAdapterLvs.java b/adapters/src/main/java/com/wang/adapters/adapter/BaseAdapterLvs.java
@@ -144,11 +144,12 @@ public final BaseViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int vi
     }
 
     public final void onBindViewHolder(@NonNull BaseViewHolder holder, int position) {
-        //设置点击事件,不判断会顶掉lv的itemClick事件
-        if (mListener != null) {
-            holder.itemView.setOnClickListener(mListener);
-            holder.itemView.setOnLongClickListener(mListener);
-        }
+        //设置点击事件
+        holder.itemView.setOnClickListener(mListener);
+        holder.itemView.setOnLongClickListener(mListener);
+        //防止null时抢占事件
+        holder.itemView.setClickable(mListener != null);
+        holder.itemView.setLongClickable(mListener != null);
         holder.setLvPosition(position);//设置position
         onBindViewHolder2(holder, position);
     }

diff --git a/adapters/src/main/java/com/wang/adapters/adapter/BaseAdapterLvsListCycle.java b/adapters/src/main/java/com/wang/adapters/adapter/BaseAdapterLvsListCycle.java
@@ -10,6 +10,7 @@
 
 import com.wang.adapters.helper.ListAdapterHelper;
 import com.wang.adapters.interfaces.OnItemClickListener;
+import com.wang.adapters.utils.ArrayUtils;
 import com.wang.container.holder.BaseViewHolder;
 import com.wang.container.interfaces.IListAdapter;
 
@@ -23,6 +24,8 @@ public abstract class BaseAdapterLvsListCycle<DB extends ViewDataBinding, BEAN>
 
     private final ListAdapterHelper<DB, BEAN> mHelper;
 
+    private boolean mIsCycle = true;
+
     /**
      * 资源id已经不是必须的了
      * <p>
@@ -45,7 +48,10 @@ public BaseAdapterLvsListCycle(@LayoutRes int layoutId, @Nullable List<BEAN> lis
 
     @Override
     public final int getItemCount() {
-        return getList().isEmpty() ? 0 : Integer.MAX_VALUE;
+        if (ArrayUtils.isEmpty(getList())) {
+            return 0;
+        }
+        return isCycle() ? Integer.MAX_VALUE : size();
     }
 
     @Override
@@ -123,4 +129,18 @@ public BEAN get(int position) {
     public BaseViewHolder<DB> onCreateListViewHolder(@NonNull ViewGroup parent) {
         return mHelper.onCreateDefaultViewHolder(parent, BaseAdapterLvsListCycle.class, getClass());
     }
+
+    /**
+     * @param isCycle true 默认值，可循环滑动
+     */
+    public void setCycle(boolean isCycle) {
+        if (isCycle != mIsCycle) {
+            mIsCycle = isCycle;
+            notifyDataSetChanged();
+        }
+    }
+
+    public boolean isCycle() {
+        return mIsCycle;
+    }
 }
diff --git a/adapters/src/main/java/com/wang/adapters/adapter/BaseAdapterRv.java b/adapters/src/main/java/com/wang/adapters/adapter/BaseAdapterRv.java
@@ -5,7 +5,6 @@
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
-import androidx.databinding.ViewDataBinding;
 import androidx.recyclerview.widget.RecyclerView;
 
 import com.wang.adapters.R;
@@ -37,9 +36,12 @@ public final BaseViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int vi
 
     @Override
     public final void onBindViewHolder(@NonNull BaseViewHolder holder, int position) {
-        //创建点击事件
+        //设置点击事件
         holder.itemView.setOnClickListener(mListener);
         holder.itemView.setOnLongClickListener(mListener);
+        //防止null时抢占事件
+        holder.itemView.setClickable(mListener != null);
+        holder.itemView.setLongClickable(mListener != null);
         onBindViewHolder2(holder, position);
     }
 

diff --git a/adapters/src/main/java/com/wang/adapters/adapter/BaseAdapterRvList.java b/adapters/src/main/java/com/wang/adapters/adapter/BaseAdapterRvList.java
@@ -99,7 +99,7 @@ public BaseViewHolder<DB> onCreateListViewHolder(@NonNull ViewGroup parent) {
     }
 
     /**
-     * @param view null表示删除
+     * @param view null表示删除，view的parent为FrameLayout，默认match、wrap
      */
     public void setHeaderView(@Nullable View view) {
         mHelper.setHeaderView(view);
@@ -112,7 +112,7 @@ public View getHeaderView() {
     }
 
     /**
-     * @param view null表示删除
+     * @param view null表示删除，view的parent为FrameLayout，默认match、wrap
      */
     @Override
     public void setFooterView(@Nullable View view) {
@@ -130,17 +130,26 @@ public View getFooterView() {
     ////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 
     /**
-     * 懒得不能再懒了的写法
-     * 就资源id，数据在xml里修改
-     *
-     * @param layoutId create时的资源id
+     * 就资源id，使用dataBinding绑定数据
      */
     public static <BEAN> BaseAdapterRvList<?, BEAN> createAdapter(@LayoutRes final int layoutId) {
-        return createAdapter(null, layoutId, null);
+        return createAdapter(null, layoutId);
+    }
+
+    /**
+     * 就资源id，使用dataBinding绑定数据
+     */
+    public static <BEAN> BaseAdapterRvList<?, BEAN> createAdapter(@Nullable List<BEAN> list, @LayoutRes final int layoutId) {
+        return createAdapter(list, layoutId, null);
     }
 
+    /**
+     * 资源id+回调
+     *
+     * @param layoutId 资源id，必须有
+     */
     public static <DB extends ViewDataBinding, BEAN> BaseAdapterRvList<DB, BEAN> createAdapter
-            (@Nullable List<BEAN> list, @LayoutRes final int layoutId, @Nullable final OnAdapterBindListener<DB, BEAN> listener) {
+    (@Nullable List<BEAN> list, @LayoutRes final int layoutId, @Nullable final OnAdapterBindListener<DB, BEAN> listener) {
         return new BaseAdapterRvList<DB, BEAN>(layoutId, list) {
 
             @NonNull

diff --git a/adapters/src/main/java/com/wang/adapters/adapter/BaseAdapterRvListCycle.java b/adapters/src/main/java/com/wang/adapters/adapter/BaseAdapterRvListCycle.java
@@ -10,6 +10,7 @@
 
 import com.wang.adapters.helper.ListAdapterHelper;
 import com.wang.adapters.interfaces.OnItemClickListener;
+import com.wang.adapters.utils.ArrayUtils;
 import com.wang.container.holder.BaseViewHolder;
 import com.wang.container.interfaces.IListAdapter;
 
@@ -23,6 +24,8 @@ public abstract class BaseAdapterRvListCycle<DB extends ViewDataBinding, BEAN> e
 
     private final ListAdapterHelper<DB, BEAN> mHelper;
 
+    private boolean mIsCycle = true;
+
     /**
      * 资源id已经不是必须的了
      * <p>
@@ -45,7 +48,10 @@ public BaseAdapterRvListCycle(@LayoutRes int layoutId, @Nullable List<BEAN> list
 
     @Override
     public final int getItemCount() {
-        return getList().isEmpty() ? 0 : Integer.MAX_VALUE;
+        if (ArrayUtils.isEmpty(getList())) {
+            return 0;
+        }
+        return isCycle() ? Integer.MAX_VALUE : size();
     }
 
     @Override
@@ -123,4 +129,18 @@ public BEAN get(int position) {
     public BaseViewHolder<DB> onCreateListViewHolder(@NonNull ViewGroup parent) {
         return mHelper.onCreateDefaultViewHolder(parent, BaseAdapterLvsListCycle.class, getClass());
     }
+
+    /**
+     * @param isCycle true 默认值，可循环滑动
+     */
+    public void setCycle(boolean isCycle) {
+        if (isCycle != mIsCycle) {
+            mIsCycle = isCycle;
+            notifyDataSetChanged();
+        }
+    }
+
+    public boolean isCycle() {
+        return mIsCycle;
+    }
 }
diff --git a/adapters/src/main/java/com/wang/adapters/interfaces/OnItemClickListener.java b/adapters/src/main/java/com/wang/adapters/interfaces/OnItemClickListener.java
@@ -54,15 +54,15 @@ default boolean onLongClick(@NonNull View view) {
     /**
      * 获取当前view所保存的position
      */
-    @Deprecated//不需要重写
+    @Deprecated//不需要重写，可以使用
     default IAdapter getAdapter(@NonNull View view) {
         return (IAdapter) view.getTag(R.id.tag_view_adapter);
     }
 
     /**
      * 获取当前view所在的ViewHolder
      */
-    @Deprecated//不需要重写
+    @Deprecated//不需要重写，可以使用
     default BaseViewHolder getViewHolder(@NonNull View view) {
         return (BaseViewHolder) view.getTag(R.id.tag_view_holder);
     }
@@ -72,7 +72,7 @@ default BaseViewHolder getViewHolder(@NonNull View view) {
      *
      * @return {@link #POSITION_HEADER}{@link #POSITION_FOOTER}或者0-list.size
      */
-    @Deprecated//不需要重写
+    @Deprecated//不需要重写，可以使用
     default int getFormatPosition(IAdapter adapter, int position) {
         if (adapter instanceof IListAdapter) {
             //listAdapter有header、footer事件

diff --git a/adapters/src/main/java/com/wang/adapters/interfaces/OnItemItemClickListener.java b/adapters/src/main/java/com/wang/adapters/interfaces/OnItemItemClickListener.java
@@ -129,7 +129,7 @@ default boolean performClick(View view, @ClickType int clickType, int listPositi
     /**
      * 外层的position需要遍历
      */
-    @Deprecated//不需要重写
+    @Deprecated//不需要重写，可以使用
     default IAdapter getParentAdapter(@NonNull View view) {
         ViewParent parent = view.getParent();
         while (parent != null) {
@@ -147,7 +147,7 @@ default IAdapter getParentAdapter(@NonNull View view) {
     /**
      * 获取当前view所在的ViewHolder
      */
-    @Deprecated//不需要重写
+    @Deprecated//不需要重写，可以使用
     default BaseViewHolder getParentViewHolder(@NonNull View view) {
         ViewParent parent = view.getParent();
         while (parent != null) {