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+package com.miekir.ym.ui.home.search;
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+
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+import android.content.DialogInterface;
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+import android.content.Intent;
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+import android.os.Bundle;
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+import android.text.TextUtils;
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+import android.view.View;
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+import android.widget.Button;
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+import android.widget.EditText;
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+
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+import androidx.appcompat.app.AlertDialog;
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+import androidx.recyclerview.widget.LinearLayoutManager;
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+import androidx.recyclerview.widget.RecyclerView;
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+
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+import com.miekir.common.utils.ToastTool;
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+import com.miekir.common.utils.ViewTool;
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+import com.miekir.mvp.presenter.InjectPresenter;
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+import com.miekir.ym.R;
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+import com.miekir.ym.base.YangActivity;
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+import com.miekir.ym.listener.OnRcvScrollListener;
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+import com.miekir.ym.ui.home.coupon.CouponAdapter;
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+import com.miekir.ym.ui.home.coupon.CouponBean;
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+import com.miekir.ym.ui.home.coupon.CouponPresenter;
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+import com.miekir.ym.ui.home.coupon.ICouponView;
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+import com.miekir.ym.ui.home.more.add.AddCouponActivity;
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+
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+import java.util.ArrayList;
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+import java.util.List;
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+
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+import rx_activity_result2.RxActivityResult;
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+
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+/**
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+ * Copyright (C), 2019-2020, Miekir
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+ *
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+ * @author Miekir
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+ * @date 2020/8/12 19:40
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+ * Description: 输入文字搜索
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+ */
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+public class SearchActivity extends YangActivity implements View.OnClickListener,
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+ ISearchView, View.OnFocusChangeListener, ICouponView<CouponBean> {
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+ private static final int PAGE_START = 0;
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+ private static final int PAGE_SIZE = 20;
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+ private int mCurrentPage = PAGE_START;
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+
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+ private EditText et_search;
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+ private Button btn_search;
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+
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+ private RecyclerView rv_search_result;
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+ private List<CouponBean> mCouponList = new ArrayList<>();
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+ private CouponAdapter mAdapter;
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+ private boolean mIsRefresh = true;
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+
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+ private String mKeyword;
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+
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+ @InjectPresenter
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+ SearchPresenter searchPresenter;
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+
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+ @InjectPresenter
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+ CouponPresenter couponPresenter;
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+
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+ @Override
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+ public int getLayoutId() {
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+ return R.layout.activity_search;
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+ }
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+
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+ @Override
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+ public void initViews(Bundle savedInstanceState) {
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+ setTitle("搜索");
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+ et_search = findViewById(R.id.et_search);
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+ et_search.setOnFocusChangeListener(this);
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+ btn_search = findViewById(R.id.btn_search);
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+
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+ rv_search_result = findViewById(R.id.rv_search_result);
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+ // 必须要设置LayoutManager，否则RecyclerView不知道要使用什么布局，从而在界面上不显示
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+ LinearLayoutManager layoutManager = new LinearLayoutManager(this, LinearLayoutManager.VERTICAL, false);
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+ rv_search_result.setLayoutManager(layoutManager);
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+ int dividerWidth = (int) getResources().getDimension(R.dimen.margin_s);
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+ mAdapter = new CouponAdapter(this, mCouponList);
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+ mAdapter.setCouponLongClickListener(this::showAdminDialog);
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+ rv_search_result.setAdapter(mAdapter);
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+ mAdapter.setEmptyView(R.layout.view_empty, rv_search_result);
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+ // 加载更多
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+ rv_search_result.addOnScrollListener(new OnRcvScrollListener(){
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+ @Override
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+ public void onBottom() {
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+ super.onBottom();
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+ // 如果到底部了，而且不是正在加载状态，就变为正在加载状态，并及时去加载数据
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+ showLoading();
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+ mIsRefresh = false;
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+ searchPresenter.searchByKeyword(mKeyword, mCurrentPage, PAGE_SIZE);
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+ }
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+ });
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+
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+ ViewTool.requestInputFocus(this, et_search);
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+ ViewTool.setOnClickListener(this, this, new int[]{R.id.ll_search, R.id.btn_search, R.id.fl_clear});
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+ }
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+
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+ @Override
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+ public void onClick(View v) {
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+
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+ switch (v.getId()) {
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+ case R.id.btn_search:
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+ et_search.clearFocus();
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+ mKeyword = et_search.getText().toString();
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+ if (TextUtils.isEmpty(mKeyword)) {
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+ ToastTool.showShort("请输入关键字或链接");
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+ return;
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+ }
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+ showLoading();
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+ mCurrentPage = PAGE_START;
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+ mCouponList.clear();
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+ mAdapter.notifyDataSetChanged();
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+ mIsRefresh = true;
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+ searchPresenter.searchByKeyword(mKeyword, mCurrentPage, PAGE_SIZE);
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+ break;
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+ case R.id.ll_search:
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+ et_search.clearFocus();
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+ break;
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+ case R.id.fl_clear:
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+ et_search.setText("");
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+ ViewTool.requestInputFocus(this, et_search);
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+ break;
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+ default:
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+ break;
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+ }
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+ }
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+
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+ /**
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+ * 修改商品或者删除商品
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+ */
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+ private void showAdminDialog(int position) {
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+ CouponBean couponBean = mCouponList.get(position);
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+ AlertDialog alertDialog = new AlertDialog.Builder(this)
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+ .setMessage("选择操作")
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+ .setPositiveButton("修改", (dialog, which) -> {
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+ dialog.dismiss();
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+ Intent modifyIntent = new Intent(this, AddCouponActivity.class);
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+ modifyIntent.putExtra(AddCouponActivity.KEY_MODIFY_COUPON, couponBean);
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+ RxActivityResult.on(this).startIntent(modifyIntent)
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+ .filter(result -> result.resultCode() == RESULT_OK)
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+ .doOnNext(result -> {
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+ // 修改商品成功之后刷新item
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+ CouponBean modifiedBean = (CouponBean) result.data().getSerializableExtra(AddCouponActivity.KEY_MODIFY_COUPON);
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+ if (modifiedBean == null) {
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+ return;
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+ }
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+ couponBean.updateData(modifiedBean);
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+ mAdapter.notifyItemChanged(position);
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+ })
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+ .subscribe();
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+ })
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+ .setNeutralButton("取消", (dialog, which) -> {
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+ dialog.dismiss();
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+ })
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+ .setNegativeButton("删除", (DialogInterface dialog, int which) -> {
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+ dialog.dismiss();
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+ showDeleteDialog(position);
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+ }).create();
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+ alertDialog.setCanceledOnTouchOutside(false);
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+ alertDialog.setCancelable(false);
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+ alertDialog.show();
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+ }
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+
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+ /**
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+ * 是否删除商品
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+ */
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+ private void showDeleteDialog(int position) {
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+ CouponBean couponBean = mCouponList.get(position);
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+ AlertDialog alertDialog = new AlertDialog.Builder(this)
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+ .setMessage("确定删除优惠：" + couponBean.couponName)
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+ .setNegativeButton("取消", (dialog, which) -> dialog.dismiss())
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+ .setPositiveButton("确定", (DialogInterface dialog, int which) -> {
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+ dialog.dismiss();
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+ // 删除商品
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+ couponPresenter.deleteCouponById(position, couponBean.id);
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+ }).create();
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+ alertDialog.show();
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+ }
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+
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+ @Override
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+ public void onSearchKeywordResult(boolean success, String message, List<CouponBean> goodsList) {
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+ hideLoading();
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+
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+ if (!success) {
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+ ToastTool.showShort(message);
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+ return;
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+ }
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+
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+ if (mCurrentPage == PAGE_START) {
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+ mCouponList.clear();
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+ if (goodsList != null) {
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+ mCouponList.addAll(goodsList);
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+ }
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+
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+ // 本地写死的数据
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+ mAdapter.notifyDataSetChanged();
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+ // 如果是下拉刷新获取的第0页数据，item不要自动滚动一段距离
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+ // 或者用这个mLayoutManager.scrollToPositionWithOffset(0, 0);
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+ if (mIsRefresh) {
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+ rv_search_result.smoothScrollToPosition(0);
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+ }
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+ } else {
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+ if (goodsList != null) {
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+ mCouponList.addAll(goodsList);
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+ }
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+
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+ mAdapter.notifyDataSetChanged();
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+ }
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+
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+ // 请求到数据了，页数自增
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+ if (goodsList != null && goodsList.size() > 0) {
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+ mCurrentPage++;
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+ } else {
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+ ToastTool.showShort("没有更多数据了");
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+ }
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+ }
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+
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+ @Override
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+ public void onFocusChange(View v, boolean hasFocus) {
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+ if (v.getId() == R.id.et_search) {
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+ if (hasFocus) {
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+ rv_search_result.setVisibility(View.GONE);
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+ btn_search.setVisibility(View.VISIBLE);
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+ } else {
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+ rv_search_result.setVisibility(View.VISIBLE);
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+ btn_search.setVisibility(View.GONE);
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+ }
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+ }
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+ }
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+
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+ @Override
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+ public void onCouponDataCome(boolean success, String message, List<CouponBean> couponBeanList) {
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+
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+ }
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+
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+ @Override
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+ public void onDeleteCoupon(boolean success, String message, int position) {
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+ // 删除结果
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+ if (success) {
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+ mAdapter.notifyItemRemoved(position);
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+ ToastTool.showShort("删除成功");
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+ } else {
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+ ToastTool.showShort(message);
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+ }
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+ }
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+}
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