MyCollectionPresenter.java 9.6 KB

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  1. package com.edufound.reader.presenter;
  2. import android.content.BroadcastReceiver;
  3. import android.content.Context;
  4. import android.content.Intent;
  5. import android.content.IntentFilter;
  6. import android.graphics.Rect;
  7. import android.os.Build;
  8. import android.os.Bundle;
  9. import android.view.View;
  10. import com.edufound.reader.activity.SmallFullVideoActivity;
  11. import com.edufound.reader.adapter.MyCollectionItemAdapter;
  12. import com.edufound.reader.base.BaseActivity;
  13. import com.edufound.reader.base.BasePresenter;
  14. import com.edufound.reader.bean.HttpResultBean;
  15. import com.edufound.reader.bean.HttpResultDataListBean;
  16. import com.edufound.reader.bean.UserRecordBean;
  17. import com.edufound.reader.contract.MyCollectionContract;
  18. import com.edufound.reader.listener.RecyclerItemClickListener;
  19. import com.edufound.reader.model.MyCollectionModel;
  20. import com.edufound.reader.receiver.BackPageReceiver;
  21. import com.edufound.reader.util.MMKVUtil;
  22. import com.edufound.reader.util.SizeUtils;
  23. import com.google.gson.reflect.TypeToken;
  24. import com.okhttplib.HttpInfo;
  25. import com.okhttplib.callback.Callback;
  26. import com.orhanobut.logger.Logger;
  27. import java.io.IOException;
  28. import java.util.HashMap;
  29. import java.util.List;
  30. import java.util.Map;
  31. import androidx.annotation.RequiresApi;
  32. import androidx.recyclerview.widget.GridLayoutManager;
  33. import androidx.recyclerview.widget.LinearLayoutManager;
  34. import androidx.recyclerview.widget.RecyclerView;
  35. import io.reactivex.rxjava3.annotations.NonNull;
  36. public class MyCollectionPresenter extends BasePresenter<MyCollectionContract.View> implements MyCollectionContract.Presenter {
  37. List<UserRecordBean> mDataList;
  38. MyCollectionItemAdapter myCollectionItemAdapter;
  39. MyCollectionModel mModel;
  40. int mTotalSize = 0;
  41. int mPageIndex = 1;
  42. boolean loadOver = false;
  43. boolean rvAdditemDecoration = false;
  44. //需要删除的position
  45. Map<String, Integer> mRemovMap;
  46. public MyCollectionPresenter() {
  47. mRemovMap = new HashMap<>();
  48. mModel = new MyCollectionModel();
  49. }
  50. @Override
  51. public void initRecyclerView(RecyclerView rv) {
  52. if (mDataList == null || mDataList.size() <= 0) {
  53. mView.getNoCollectionImg().setVisibility(View.VISIBLE);
  54. rv.setVisibility(View.GONE);
  55. return;
  56. }
  57. mView.getNoCollectionImg().setVisibility(View.GONE);
  58. rv.setVisibility(View.VISIBLE);
  59. myCollectionItemAdapter = new MyCollectionItemAdapter(mView.getActivity(), mDataList);
  60. GridLayoutManager gridLayoutManager = new GridLayoutManager(mView.getActivity(), 2);
  61. gridLayoutManager.setOrientation(LinearLayoutManager.HORIZONTAL);
  62. if (!rvAdditemDecoration) {
  63. rv.addItemDecoration(new MyCollectionItemDecoration(
  64. SizeUtils.dp2px(mView.getActivity(), 27f),
  65. SizeUtils.dp2px(mView.getActivity(), 27f)));
  66. rvAdditemDecoration = true;
  67. }
  68. rv.setLayoutManager(gridLayoutManager);
  69. rv.addOnChildAttachStateChangeListener(new RecyclerView.OnChildAttachStateChangeListener() {
  70. @Override
  71. public void onChildViewAttachedToWindow(@androidx.annotation.NonNull View view) {
  72. }
  73. @Override
  74. public void onChildViewDetachedFromWindow(@androidx.annotation.NonNull View view) {
  75. }
  76. });
  77. myCollectionItemAdapter.setOnItemClickListener(new RecyclerItemClickListener() {
  78. @Override
  79. public void onClickListener(int position, View view, Object object) {
  80. Bundle bundle = new Bundle();
  81. bundle.putString("index", position + "");
  82. bundle.putString("dataJson", "getmmkv");
  83. bundle.putString("intoPage", "MyCollection");
  84. //数据太多了。直接传不过去,通过MMKV写一下再读一下
  85. MMKVUtil.getInstance().encode("video_data", ((BaseActivity) mView.getActivity()).getGson().toJson(mDataList));
  86. // bundle.putString("dataJson", ((BaseActivity) mView.getActivity()).getGson().toJson(mDataList));
  87. // ((BaseActivity) mView.getActivity()).toNextActivity(SmallFullVideoActivity.class, bundle);
  88. ((BaseActivity) mView.getActivity()).toNextActivityForResult(SmallFullVideoActivity.class, bundle, MyCollectionModel.ACTIVITY_BACK_RESULT);
  89. }
  90. });
  91. rv.addOnScrollListener(new RecyclerView.OnScrollListener() {
  92. @Override
  93. public void onScrollStateChanged(@androidx.annotation.NonNull RecyclerView recyclerView, int newState) {
  94. super.onScrollStateChanged(recyclerView, newState);
  95. addMoreData(rv);
  96. }
  97. });
  98. rv.setAdapter(myCollectionItemAdapter);
  99. }
  100. @Override
  101. public void getFavoritesData() {
  102. if (mDataList != null && mDataList.size() >= mTotalSize) {
  103. loadOver = true;
  104. // Toast.makeText(mView.getActivity(), "没有更多了", Toast.LENGTH_SHORT).show();
  105. return;
  106. }
  107. mModel.getFavorites(mView.getActivity(), mPageIndex, new Callback() {
  108. @Override
  109. public void onSuccess(HttpInfo info) throws IOException {
  110. HttpResultBean<HttpResultDataListBean<UserRecordBean>> bean = info.getRetDetail(new TypeToken<HttpResultBean<HttpResultDataListBean<UserRecordBean>>>() {
  111. }.getType());
  112. if (mDataList == null || mDataList.size() <= 0) {
  113. mDataList = bean.getData().getList();
  114. mTotalSize = Integer.valueOf(bean.getData().getTotalSize());
  115. mView.getFavoritesSuccess();
  116. } else {
  117. mDataList.addAll(bean.getData().getList());
  118. mView.getRootView().post(new Runnable() {
  119. @Override
  120. public void run() {
  121. myCollectionItemAdapter.notifyDataSetChanged();
  122. }
  123. });
  124. }
  125. mPageIndex++;
  126. }
  127. @Override
  128. public void onFailure(HttpInfo info) throws IOException {
  129. Logger.e("获取收藏列表失败:" + info.getRetDetail());
  130. }
  131. });
  132. }
  133. @Override
  134. public void activityDestory() {
  135. mView.getActivity().unregisterReceiver(collectionReceiver);
  136. }
  137. @Override
  138. public void activityOnStart() {
  139. Logger.e("注册广播");
  140. IntentFilter intentFilter = new IntentFilter();
  141. intentFilter.addAction(BackPageReceiver.BACK_HOME_REMOVE_VIDEO_ITEM);
  142. intentFilter.addAction(BackPageReceiver.BACK_HOME_ADD_VIDEO_ITEM);
  143. mView.getActivity().registerReceiver(collectionReceiver, intentFilter);
  144. // IntentFilter intentFilter = new IntentFilter(BackPageReceiver.BACK_HOME_REMOVE_VIDEO_ITEM);
  145. // mView.getActivity().registerReceiver(receiver, intentFilter);
  146. }
  147. BroadcastReceiver collectionReceiver = new BroadcastReceiver() {
  148. @Override
  149. public void onReceive(Context context, Intent intent) {
  150. if (intent.getAction().equals(BackPageReceiver.BACK_HOME_REMOVE_VIDEO_ITEM)) {
  151. //删除item
  152. int position = Integer.valueOf(intent.getStringExtra("position"));
  153. mRemovMap.put("del" + position, position);
  154. } else if (intent.getAction().equals(BackPageReceiver.BACK_HOME_ADD_VIDEO_ITEM)) {
  155. //添加item
  156. int position = Integer.valueOf(intent.getStringExtra("position"));
  157. if (mRemovMap.get("del" + position) != null) {
  158. mRemovMap.remove("del" + position);
  159. }
  160. }
  161. }
  162. };
  163. @Override
  164. public void clearData() {
  165. mDataList = null;
  166. myCollectionItemAdapter = null;
  167. mTotalSize = 0;
  168. mPageIndex = 1;
  169. loadOver = false;
  170. }
  171. @RequiresApi(api = Build.VERSION_CODES.N)
  172. @Override
  173. public void activityOnResume() {
  174. if (mRemovMap != null && mRemovMap.size() > 0) {
  175. for (Map.Entry<String, Integer> item : mRemovMap.entrySet()) {
  176. if (myCollectionItemAdapter != null) {
  177. myCollectionItemAdapter.removeByPosition(item.getValue());
  178. }
  179. }
  180. mRemovMap = new HashMap<>();
  181. }
  182. }
  183. public void addMoreData(RecyclerView rv) {
  184. //获取当前显示的View 的数据
  185. int childCount = rv.getChildCount();
  186. //获取最后一具 Item 对应的View
  187. View childAt = rv.getChildAt(childCount - 1);
  188. //获取当前军舰中显示的最后一个 Item 的位置 Postion
  189. int childLayoutPosition = rv.getChildLayoutPosition(childAt);
  190. //如果不是最后一个就向下滑动
  191. if (childLayoutPosition < rv.getAdapter().getItemCount() - 2) {
  192. } else {
  193. if (loadOver) {
  194. return;
  195. }
  196. getFavoritesData();
  197. }
  198. }
  199. }
  200. class MyCollectionItemDecoration extends RecyclerView.ItemDecoration {
  201. private int mRowSpacing;//行间距
  202. private int mColumnSpacing;// 列间距
  203. /**
  204. * @param rowSpacing 行间距
  205. * @param columnSpacing 列间距
  206. */
  207. public MyCollectionItemDecoration(int rowSpacing, int columnSpacing) {
  208. this.mRowSpacing = rowSpacing;
  209. this.mColumnSpacing = columnSpacing;
  210. }
  211. @Override
  212. public void getItemOffsets(@NonNull Rect outRect, @NonNull View view, @NonNull RecyclerView parent, @NonNull RecyclerView.State state) {
  213. int position = parent.getChildAdapterPosition(view);
  214. outRect.bottom = mRowSpacing;
  215. outRect.right = mColumnSpacing;
  216. if (position < 2) {
  217. outRect.left = mColumnSpacing;
  218. }
  219. }
  220. }