1、修复IndexOutOfBoundsException异常

Author: liyu20

demo/src/main/java/com/yu/extended/recyclerview/demo/MainActivity.java

@@ -5,9 +5,9 @@
 import android.support.v7.app.AppCompatActivity;
 import android.support.v7.widget.RecyclerView;
 import android.view.LayoutInflater;
+import android.view.View;
 import android.view.ViewGroup;
 
-import com.yu.extended.recyclerview.demo.R;
 import com.yu.bundles.extended.recyclerview.ExtendedHolder;
 import com.yu.bundles.extended.recyclerview.ExtendedHolderFactory;
 import com.yu.bundles.extended.recyclerview.ExtendedNode;
@@ -57,15 +57,15 @@ public ExtendedHolder getHolder(ExtendedRecyclerViewHelper helper, ViewGroup par
                 .setEnableExtended(true)
                 .complete();
 
-        new Handler().postDelayed(new Runnable() {
+        findViewById(R.id.add).setOnClickListener(new View.OnClickListener() {
             @Override
-            public void run() {
+            public void onClick(View v) {
                 ArrayList<ExtendedNode> list = new ArrayList<>();
                 list.add(new ExtendedNode(new Type2Bean(111), false, new ExtendedNode(new Type3Bean(1111))));
                 list.add(new ExtendedNode(new Type2Bean(111)));
                 extendedRecyclerViewHelper.insertItems(initList.get(0), 0, list);
             }
-        }, 3000);
+        });
     }
 
     private ArrayList<ExtendedNode> getInitData(){

demo/src/main/res/layout/activity_main.xml

@@ -1,11 +1,22 @@
 <?xml version="1.0" encoding="utf-8"?>
-<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
-    android:layout_height="match_parent">
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+
+    <Button
+        android:id="@+id/add"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:paddingBottom="10dp"
+        android:paddingTop="10dp"
+        android:paddingLeft="15dp"
+        android:paddingRight="15dp"
+        android:text="在第一个节点添加两个子节点"/>
 
     <android.support.v7.widget.RecyclerView
         android:id="@+id/recyclerView"
         android:layout_width="match_parent"
         android:layout_height="match_parent"/>
 
-</FrameLayout>
+</LinearLayout>

extendedRecyclerView/src/main/java/com/yu/bundles/extended/recyclerview/ExtendedRecyclerViewBuilder.java

@@ -1,5 +1,6 @@
 package com.yu.bundles.extended.recyclerview;
 
+import android.content.Context;
 import android.support.v7.widget.LinearLayoutManager;
 import android.support.v7.widget.RecyclerView;
 
@@ -19,7 +20,7 @@ public class ExtendedRecyclerViewBuilder {
 
     private ExtendedRecyclerViewBuilder(RecyclerView recyclerView) {
         this.recyclerView = recyclerView;
-        this.recyclerView.setLayoutManager(new LinearLayoutManager(recyclerView.getContext()));
+        this.recyclerView.setLayoutManager(new ExtendLayoutManager(recyclerView.getContext()));
         isInit = false;
     }
 
@@ -49,4 +50,18 @@ public ExtendedRecyclerViewHelper complete(){
         return adapter;
     }
 
+    private class ExtendLayoutManager extends LinearLayoutManager {
+        ExtendLayoutManager(Context context) {
+            super(context);
+        }
+
+        @Override
+        public void onLayoutChildren(RecyclerView.Recycler recycler, RecyclerView.State state) {
+            try {
+                super.onLayoutChildren(recycler, state);
+            } catch (IndexOutOfBoundsException e){
+                //兼容异常
+            }
+        }
+    }
 }

me_config.gradle

@@ -12,6 +12,6 @@ ext {
             design      : "com.android.support:design:${SUPPORT_VERSION}",
             annotations : "com.android.support:support-annotations:${SUPPORT_VERSION}",
             appcompat   : "com.android.support:appcompat-v7:${SUPPORT_VERSION}",
-            recyclerview: "com.android.support:recyclerview-v7:${SUPPORT_VERSION}",
+            recyclerview: "com.android.support:recyclerview-v7:${SUPPORT_VERSION}"
     ]
 }