专题列表增加上拉加载，资讯大图处理，游戏列表优化

app/src/main/java/com/gh/gamecenter/adapter/SubjectAdapter.java

@@ -27,6 +27,7 @@ import com.gh.download.DownloadEntry;
 import com.gh.gamecenter.GameDetailsActivity;
 import com.gh.gamecenter.R;
 import com.gh.gamecenter.SubjectActivity;
+import com.gh.gamecenter.adapter.viewholder.FooterViewHolder;
 import com.gh.gamecenter.adapter.viewholder.GameNormalViewHolder;
 import com.gh.gamecenter.adapter.viewholder.GameTestViewHolder;
 import com.gh.gamecenter.db.info.GameInfo;
@@ -65,8 +66,9 @@ public class SubjectAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder
 	private LinearLayout reuse_no_connection;
 
 	private List<GameEntity> list;
-
 	private boolean order;
+	private static final int FOOTER_ITEM = 101;
+	private boolean isLoaded;
 
 	// 黄壮华 获取引用 修改2015/8/15
 	private ArrayMap<String, Integer> locationMap;
@@ -77,6 +79,12 @@ public class SubjectAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder
 
 	private DismissEntity dismissEntity;
 
+	private int page = 1;
+	private boolean isRemove;
+	private boolean isNetworkError;
+	private int per_page = 20;
+	private String id;
+
 	public SubjectAdapter(Context context,
 						  RecyclerView recyclerView,
 						  ProgressBarCircularIndeterminate pbLoading,
@@ -100,14 +108,18 @@ public class SubjectAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder
 		DownloadItemUtils.initializeGameMap(context, gameMap);
 
 		list = new ArrayList<GameEntity>();
+		isLoaded = false;
+		isNetworkError = false;
+		this.id = id;
 
-		initList(id);
+		initList(page);
 	}
 
-	private void initList(String id) {
+	public void initList(final int page) {
+		isLoaded =false;
 		JsonArrayExtendedRequest request = new JsonArrayExtendedRequest(
 				TimestampUtils.addTimestamp(Config.HOST
-						+ "v1d50/game/column/" + id, Constants.GAME_CD),
+						+ "v1d50/game/column/" + id +"?page="+ page, Constants.GAME_CD),
 				new Response.Listener<JSONArray>() {
 
 					@Override
@@ -122,12 +134,19 @@ public class SubjectAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder
 				// 无网络连接
 				if (error.getClass().equals(NoConnectionError.class)
 						|| error.getClass().equals(TimeoutError.class)) {
-					if (subject_pb_loading != null && subject_pb_loading.getVisibility() == View.VISIBLE) {
-						subject_pb_loading.setVisibility(View.GONE);
+					if (page == 1){
+						if (subject_pb_loading != null && subject_pb_loading.getVisibility() == View.VISIBLE) {
+							subject_pb_loading.setVisibility(View.GONE);
+						}
+						Toast.makeText(context, "网络错误", Toast.LENGTH_SHORT).show();
+						subject_list.setVisibility(View.GONE);
+						reuse_no_connection.setVisibility(View.VISIBLE);
+					}else {
+						Toast.makeText(context, "网络错误", Toast.LENGTH_SHORT).show();
+						isNetworkError = true;
+						notifyDataSetChanged();
 					}
-					Toast.makeText(context, "网络错误", Toast.LENGTH_SHORT).show();
-					subject_list.setVisibility(View.GONE);
-					reuse_no_connection.setVisibility(View.VISIBLE);
+
 				}
 			}
 
@@ -149,7 +168,8 @@ public class SubjectAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder
 							entity.getId(), entity.getName()));
 				}
 			}
-			list = gameList;
+			list.addAll(gameList);
+
 			notifyItemRangeInserted(list.size() - gameList.size(), gameList.size());
 		}
 
@@ -165,20 +185,36 @@ public class SubjectAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder
 		if (subject_pb_loading != null && subject_pb_loading.getVisibility() == View.VISIBLE) {
 			subject_pb_loading.setVisibility(View.GONE);
 		}
+		if (list.isEmpty() ||  gameList.size() < 20) {
+			isRemove = true;
+			notifyDataSetChanged();
+		}
+		isLoaded = true;
 	}
 
 	@Override
 	public int getItemCount() {
-		return list.size();
+		if (list.size()<1){
+			return 0;
+		}
+		return list.size()+1;
 	}
 
 	@Override
 	public int getItemViewType(int position) {
+		if (list.size() == position) {
+			return FOOTER_ITEM;
+		}
 		return position;
 	}
 
 	@Override
 	public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
+		if (i == FOOTER_ITEM){
+			View view = LayoutInflater.from(viewGroup.getContext()).inflate(
+					R.layout.refresh_footerview, viewGroup, false);
+			return new FooterViewHolder(view);
+		}
 		if (list.get(i).getTest() != null) {
 			View view = LayoutInflater.from(viewGroup.getContext()).inflate(
 					R.layout.home_game_test_item, viewGroup, false);
@@ -196,6 +232,32 @@ public class SubjectAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder
 			initGameNormalViewHolder((GameNormalViewHolder) viewHolder, position);
 		} else if (viewHolder instanceof GameTestViewHolder) {
 			initGameTestViewHolder((GameTestViewHolder) viewHolder, position);
+		} else if (viewHolder instanceof FooterViewHolder){
+			initFooterViewHolder((FooterViewHolder) viewHolder);
+		}
+	}
+
+	private void initFooterViewHolder(FooterViewHolder viewHolder) {
+		if (isNetworkError) {
+			viewHolder.footerview_progressbar.setVisibility(View.GONE);
+			viewHolder.footerview_tv_loading.setText("加载失败，点击重试");
+			viewHolder.itemView.setClickable(true);
+			viewHolder.itemView.setOnClickListener(new View.OnClickListener() {
+				@Override
+				public void onClick(View v) {
+					isNetworkError = false;
+					notifyDataSetChanged();
+					initList(list.size()/per_page+1);
+				}
+			});
+		} else if (isRemove) {
+			viewHolder.footerview_progressbar.setVisibility(View.GONE);
+			viewHolder.footerview_tv_loading.setText("加载完毕");
+			viewHolder.itemView.setClickable(false);
+		} else {
+			viewHolder.footerview_progressbar.setVisibility(View.VISIBLE);
+			viewHolder.footerview_tv_loading.setText("加载中...");
+			viewHolder.itemView.setClickable(false);
 		}
 	}
 
@@ -347,4 +409,8 @@ public class SubjectAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder
 		return dismissEntity;
 	}
 
+	public boolean isLoaded(){
+		return isLoaded;
+	}
+
 }