Merge pull request #125 from esmasui/master

Fixed to set mPosition to ViewHolder

lib/src/main/java/android/support/v7/widget/ViewHolderDelegate.java

@@ -0,0 +1,12 @@
+package android.support.v7.widget;
+
+public abstract class ViewHolderDelegate {
+
+ private ViewHolderDelegate() {
+ throw new UnsupportedOperationException("no instances");
+ }
+
+ public static void setPosition(RecyclerView.ViewHolder viewHolder, int position) {
+ viewHolder.mPosition = position;
+ }
+}

lib/src/main/java/com/lsjwzh/widget/recyclerviewpager/LoopRecyclerViewPagerAdapter.java

@@ -1,17 +1,12 @@
 package com.lsjwzh.widget.recyclerviewpager;
 
 import android.support.v7.widget.RecyclerView;
-import android.util.Log;
+import android.support.v7.widget.ViewHolderDelegate;
 
-import java.lang.reflect.Field;
 
 public class LoopRecyclerViewPagerAdapter<VH extends RecyclerView.ViewHolder>
  extends RecyclerViewPagerAdapter<VH> {
 
- private static final String TAG = LoopRecyclerViewPager.class.getSimpleName();
-
- private Field mPositionField;
-
  public LoopRecyclerViewPagerAdapter(RecyclerViewPager viewPager, RecyclerView.Adapter<VH> adapter) {
  super(viewPager, adapter);
  }
@@ -48,21 +43,7 @@ public void onBindViewHolder(VH holder, int position) {
  super.onBindViewHolder(holder, getActualPosition(position));
  // because of getCurrentPosition may return ViewHolder‘s position,
  // so we must reset mPosition if exists.
- if (mPositionField == null) {
- try {
- mPositionField = holder.getClass().getDeclaredField("mPosition");
- mPositionField.setAccessible(true);
- } catch (NoSuchFieldException e) {
- Log.i(TAG, "The holder doesn't have a mPosition field.");
- }
- }
- if (mPositionField != null) {
- try {
- mPositionField.set(holder, position);
- } catch (Exception e) {
- Log.w(TAG, "Error while updating holder's mPosition field", e);
- }
- }
+ ViewHolderDelegate.setPosition(holder, position);
  }
 
  public int getActualPosition(int position) {