1.修复使用默认底部状态下，条目插入顺序混乱的Bug;2.增加子条目点击事件的监听

Author: chaychan

README.md

@@ -114,6 +114,15 @@
 
 ![](./intro_img/ell_4.gif)
 
+#### 5.设置条目点击事件
+
+    ellProduct.setOnItemClickListener(new ExpandableLinearLayout.OnItemClickListener() {
+            @Override
+            public void onItemClick(View view, int position) {
+                Toast.makeText(EllCustomBottomDemoActivity.this,names[position] , Toast.LENGTH_SHORT).show();
+            }
+        });
+
 ### 二、使用自定义底部
 
 布局文件中，ExpandableLinearLayout配置useDefaultBottom="false",声明不使用默认底部。自己定义底部的布局。

demo/src/main/java/com/chaychan/expandablelinearlayout/EllCustomBottomDemoActivity.java

@@ -6,6 +6,7 @@
 import android.widget.ImageView;
 import android.widget.RelativeLayout;
 import android.widget.TextView;
+import android.widget.Toast;
 
 import com.bumptech.glide.Glide;
 import com.chaychan.expandablelinearlayout.bean.ProductBean;
@@ -62,7 +63,7 @@ protected void onCreate(Bundle savedInstanceState) {
 
         ellProduct.removeAllViews();//清除所有的子View（避免重新刷新数据时重复添加）
         //添加数据
-        for (int i = 0; i < 5; i++) {
+        for (int i = 0; i < 4; i++) {
             View view = View.inflate(this, R.layout.item_product, null);
             ProductBean productBean = new ProductBean(imgUrls[i], names[i], intros[i], "12.00");
             ViewHolder viewHolder = new ViewHolder(view, productBean);
@@ -90,6 +91,13 @@ public void onClick(View v) {
                 ellProduct.toggle();
             }
         });
+
+        ellProduct.setOnItemClickListener(new ExpandableLinearLayout.OnItemClickListener() {
+            @Override
+            public void onItemClick(View view, int position) {
+                Toast.makeText(EllCustomBottomDemoActivity.this,names[position] , Toast.LENGTH_SHORT).show();
+            }
+        });
     }
 
     // 箭头的动画
@@ -103,7 +111,6 @@ private void doArrowAnim(boolean isExpand) {
         }
     }
 
-
     class ViewHolder {
         @Bind(R.id.iv_img)
         ImageView ivImg;

demo/src/main/java/com/chaychan/expandablelinearlayout/EllDefaultBottomDemoActivity.java

@@ -5,6 +5,7 @@
 import android.view.View;
 import android.widget.ImageView;
 import android.widget.TextView;
+import android.widget.Toast;
 
 import com.bumptech.glide.Glide;
 import com.chaychan.expandablelinearlayout.bean.ProductBean;
@@ -60,6 +61,13 @@ protected void onCreate(Bundle savedInstanceState) {
             viewHolder.refreshUI();
             ellProduct.addItem(view);//添加子条目
         }
+
+        ellProduct.setOnItemClickListener(new ExpandableLinearLayout.OnItemClickListener() {
+            @Override
+            public void onItemClick(View view, int position) {
+                Toast.makeText(EllDefaultBottomDemoActivity.this,names[position] , Toast.LENGTH_SHORT).show();
+            }
+        });
     }
 
     class ViewHolder {

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

@@ -19,7 +19,7 @@
             android:layout_height="wrap_content"
             android:layout_marginTop="10dp"
             android:orientation="vertical"
-            app:defaultItemCount="2"
+            app:defaultItemCount="3"
             app:useDefaultBottom="false"
             >
 

library/src/main/java/com/chaychan/library/ExpandableLinearLayout.java

@@ -34,6 +34,7 @@ public class ExpandableLinearLayout extends LinearLayout implements View.OnClick
     private float fontSize;
     private int textColor;
     private int arrowResId;
+    private int mPosition;
 
     public ExpandableLinearLayout(Context context) {
         this(context, null);
@@ -85,10 +86,10 @@ private void findViews() {
 
 
     public void addItem(View view) {
-        int childCount = getChildCount();
         if (!useDefaultBottom){
             //如果不使用默认底部
             addView(view);
+            int childCount = getChildCount();
             if (childCount > defaultItemCount){
                 hide();
             }
@@ -100,7 +101,8 @@ public void addItem(View view) {
             //如果还没有底部
             addView(view);
         } else {
-            addView(view, childCount - 2);//插在底部之前
+            int childCount = getChildCount();
+            addView(view, childCount - 1);//插在底部之前
         }
         refreshUI(view);
     }
@@ -205,13 +207,13 @@ public void toggle() {
         isExpand = !isExpand;
 
         //回调
-        if (mListener != null){
-            mListener.onStateChanged(isExpand);
+        if (mStateListener != null){
+            mStateListener.onStateChanged(isExpand);
         }
     }
 
 
-    private OnStateChangeListener mListener;
+    private OnStateChangeListener mStateListener;
 
     /**
      * 定义状态改变接口
@@ -221,6 +223,25 @@ public interface OnStateChangeListener {
     }
 
     public void setOnStateChangeListener(OnStateChangeListener mListener) {
-        this.mListener = mListener;
+        this.mStateListener = mListener;
+    }
+
+
+    public void setOnItemClickListener(final OnItemClickListener listener){
+        int endIndex = useDefaultBottom ? getChildCount() - 1 : getChildCount();//如果是使用默认底部，则结束的下标是到底部之前
+        for (int i = 0; i< endIndex;i++){
+            View view = getChildAt(i);
+            final int position = i;
+            view.setOnClickListener(new OnClickListener() {
+                @Override
+                public void onClick(View v) {
+                    listener.onItemClick(v,position);
+                }
+            });
+        }
+    }
+
+    public interface OnItemClickListener{
+        void onItemClick(View view,int position);
     }
 }