package com.yiban.caesar.Activity.Main;import android.content.Context;import android.content.Intent;import android.os.Handler;import android.support.v4.widget.SwipeRefreshLayout;import android.support.v7.widget.LinearLayoutManager;import android.support.v7.widget.RecyclerView;import android.view.View;import android.widget.ImageView;import android.widget.TextView;import com.android.volley.RequestQueue;import com.android.volley.VolleyError;import com.android.volley.toolbox.Volley;import com.yiban.caesar.Activity.BaseActivity;import com.yiban.caesar.R;import com.yiban.caesar.Utils.AppTools;import com.yiban.caesar.Utils.TextStringUtils;import com.yiban.caesar.Utils.UtilsTools;import com.yiban.caesar.View.FullyLinearLayoutManager;import com.yiban.caesar.View.MyScrollView;import com.yiban.caesar.adapter.RentHouseListAdapter;import com.yiban.caesar.bean._FilterHouseItem;import com.yiban.caesar.bean._Return;import com.yiban.caesar.constant.SysConfig;import com.yiban.caesar.volley.VolleyClient;import com.yiban.caesar.volley.VolleyRequest;import java.util.ArrayList;import java.util.TreeMap;public class RecommendActivity extends BaseActivity implements View.OnClickListener, SwipeRefreshLayout.OnRefreshListener, RentHouseListAdapter.OnCustomItemClickListener { private String TAG = "RecommendActivity"; private Context mContext; private ImageView iv_title_bar_left; private TextView tv_title_bar_title; private TextView tv_list_more; private SwipeRefreshLayout mSwipeRefreshLayout; private RecyclerView mRecycleView; private MyScrollView scrollView;//含有头的头布局和RecyclerView的 private FullyLinearLayoutManager fullyLinearLayoutManager; private RentHouseListAdapter mAdapter; private RequestQueue requestQueue; private int type = 1; // 1租 2买 . 此页目前固定为租的 private ArrayList<_FilterHouseItem> mDataList; private boolean isLoading = false; // 是否正在加载 private boolean loadMore = true; // 是否有更多数据需要加载 private int mPage = 1; private String location; @Override protected void initActivity() { setContentView(R.layout.activity_recommend_house); mContext = this; requestQueue = Volley.newRequestQueue(mContext); location = getIntent().getStringExtra("location"); initView(); initData(); } private void initData() { mPage = 1; mSwipeRefreshLayout.setRefreshing(true); API_House(); } private void API_House() { new Handler().postDelayed(new Runnable() { public void run() { TreeMap<String, String> map = new TreeMap<String, String>(); map.put("xxx", "xxxxxxxxxx"); VolleyClient.postRequestQueue(requestQueue, "AGENT_BUILDING_LIST", SysConfig.APIhost, SysConfig.xxxxx, map, volleyRequest); } }, 500); } VolleyRequest volleyRequest = new VolleyRequest() { @Override protected void onMyResponse(String response) { UtilsTools.Log_e(TAG, "API_House --- response ->" + response); mSwipeRefreshLayout.setRefreshing(false); isLoading = false; _Return Re = new _Return(response); if (Re.isSuccess(mContext)) { showMoreBtn(false); loadMore = true; setData(AppTools.getIndexArrayList(Re.getData())); // 因为换了东西,所以现在如果一屏铺不满就会没法滑动. // 刚打开时直接加载第1,2页就满了,这个判断解决这个bug // 之后加载的页数还是1页1页的加载 if (mPage == 1) { startLoadMore(); } } else { loadMore = false; if (mPage > 1) { mPage--; } else { mPage = 1; } showMoreBtn(true); } } @Override public void onMyErrorResponse(VolleyError volleyError) { super.onMyErrorResponse(volleyError); mSwipeRefreshLayout.setRefreshing(false); isLoading = false; mPage = mPage > 1 ? mPage-- : 1; } }; private void setData(ArrayList<_FilterHouseItem> dataList) { if (mDataList == null) { mDataList = new ArrayList<>(); } if (mPage == 1) { mDataList = dataList; } else { mDataList.addAll(dataList); } if (mAdapter == null) { mAdapter = new RentHouseListAdapter(mContext, mDataList, type); mAdapter.setOnCustomItemClickListener(this); mRecycleView.setAdapter(mAdapter); } else { mAdapter.setDataList(mDataList); } } private void initView() { tv_title_bar_title = (TextView) findViewById(R.id.tv_title_bar_title); tv_title_bar_title.setVisibility(View.VISIBLE); iv_title_bar_left = (ImageView) findViewById(R.id.iv_title_bar_left); iv_title_bar_left.setVisibility(View.VISIBLE); iv_title_bar_left.setImageResource(R.mipmap.ic_back); iv_title_bar_left.setOnClickListener(this); tv_title_bar_title.setText(TextStringUtils.numToTitle(location)); tv_list_more = (TextView) findViewById(R.id.tv_list_more); mRecycleView = (RecyclerView) findViewById(R.id.rv_recommend); mSwipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipe_recommend); mSwipeRefreshLayout.setColorSchemeColors(getResources().getColor(R.color.colorAccent), getResources().getColor(R.color.red)); mSwipeRefreshLayout.setOnRefreshListener(this); scrollView = (MyScrollView) findViewById(R.id.sv_recommend); scrollView.smoothScrollTo(0, 0); initScrollViewAndRefreshLayout(); } private void initScrollViewAndRefreshLayout() { scrollView.setOnScrollToBottomLintener(new MyScrollView.OnScrollToBottomListener() { @Override public void onScrollBottomListener(boolean isBottom) { /**这里遇到一个问题，当数据加载完成后，向上滑动ScrollView,还会提示一遍“没有更多数据了”，所以多加了一个向下滑动的标记isTop;如果是判断向下滑动，并且isBottom是滑动到了最低端才加载数据**/ if (isBottom && scrollView.isTop()) { UtilsTools.Log_e(TAG, "isBottom && scrollView.isTop()"); //GetToast.showToast(ScrollingActivity.this,isBottom+""); if (isLoading) { UtilsTools.Log_e(TAG, "正在加载,等会儿======"); return; } UtilsTools.Log_e(TAG, "滑动更多======"); startLoadMore(); } else { UtilsTools.Log_e(TAG, "onScrollBottomListener --- else"); //GetToast.showToast(ScrollingActivity.this,isBottom+""); } } }); fullyLinearLayoutManager = new FullyLinearLayoutManager(this); fullyLinearLayoutManager.setOrientation(LinearLayoutManager.VERTICAL); fullyLinearLayoutManager.setSmoothScrollbarEnabled(true); mRecycleView.setLayoutManager(fullyLinearLayoutManager); } @Override public void onClick(View v) { switch (v.getId()) { case R.id.iv_title_bar_left: finish(); break; } } @Override public void onRefresh() { initData(); } /** * 房源列表的点击事件 * * @param view * @param position */ @Override public void onItemClick(View view, int position) { // 在adapter里加了点击事件 } /** * 加载更多 */ private void startLoadMore() { UtilsTools.Log_e(TAG, "加载更多======"); isLoading = true; mPage += 1; API_House(); } private void showMoreBtn(Boolean show) { UtilsTools.Log_e(TAG, "showMoreBtn --- " + show); if (show) { tv_list_more.setVisibility(View.VISIBLE); tv_list_more.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { startActivity(new Intent(mContext, RentActivity.class)); } }); } else { tv_list_more.setVisibility(View.GONE); tv_list_more.setOnClickListener(null); } }}- - - - - - - - - - - - - - - - - - - - -
package com.yiban.caesar.View;import android.content.Context;import android.util.AttributeSet;import android.util.Log;import android.view.MotionEvent;import android.view.ViewConfiguration;import android.widget.ScrollView;/** * Created by LXL on 2017/05/03. */public class MyScrollView extends ScrollView { private int downX; private int downY; private int mTouchSlop; public boolean isTop() { return isTop; } public void setTop(boolean top) { isTop = top; } private boolean isTop = false;//是不是滑动到了最低端 ；使用这个方法，解决了上拉加载的问题 private OnScrollToBottomListener onScrollToBottom; public MyScrollView(Context context) { super(context); mTouchSlop = ViewConfiguration.get(context).getScaledTouchSlop(); } public MyScrollView(Context context, AttributeSet attrs) { super(context, attrs); mTouchSlop = ViewConfiguration.get(context).getScaledTouchSlop(); } public MyScrollView(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); mTouchSlop = ViewConfiguration.get(context).getScaledTouchSlop(); } @Override protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) { super.onOverScrolled(scrollX, scrollY, clampedX, clampedY); if (scrollY != 0 && null != onScrollToBottom && isTop()) { onScrollToBottom.onScrollBottomListener(clampedY); } } public void setOnScrollToBottomLintener(OnScrollToBottomListener listener) { onScrollToBottom = listener; } public interface OnScrollToBottomListener { public void onScrollBottomListener(boolean isBottom); } @Override public boolean onInterceptTouchEvent(MotionEvent e) { int action = e.getAction(); switch (action) { case MotionEvent.ACTION_DOWN: setTop(false); downX = (int) e.getRawX(); downY = (int) e.getRawY(); Log.i("-----::----downY-----::", downY + ""); break; case MotionEvent.ACTION_MOVE: int moveY = (int) e.getRawY(); Log.i("-----::----moveY-----::", moveY + ""); /****判断是向下滑动，才设置为true****/ if (downY - moveY > 0) { setTop(true); } else { setTop(false); } if (Math.abs(moveY - downY) > mTouchSlop) { return true; } } return super.onInterceptTouchEvent(e); }}- - - - - - - - - - - - - - - - - - - - - -
package com.yiban.caesar.View;import android.content.Context;import android.support.v7.widget.LinearLayoutManager;import android.support.v7.widget.RecyclerView;import android.view.View;import android.view.ViewGroup;/** * Created by LXL on 2017/4/25. */public class FullyLinearLayoutManager extends LinearLayoutManager { private static final String TAG = FullyLinearLayoutManager.class.getSimpleName(); public FullyLinearLayoutManager(Context context) { super(context); } public FullyLinearLayoutManager(Context context, int orientation, boolean reverseLayout) { super(context, orientation, reverseLayout); } private int[] mMeasuredDimension = new int[2]; @Override public void onMeasure(RecyclerView.Recycler recycler, RecyclerView.State state, int widthSpec, int heightSpec) { final int widthMode = View.MeasureSpec.getMode(widthSpec); final int heightMode = View.MeasureSpec.getMode(heightSpec); final int widthSize = View.MeasureSpec.getSize(widthSpec); final int heightSize = View.MeasureSpec.getSize(heightSpec);// UtilsTools.Log_e(TAG, "onMeasure called. \nwidthMode " + widthMode// + " \nheightMode " + heightSpec// + " \nwidthSize " + widthSize// + " \nheightSize " + heightSize// + " \ngetItemCount() " + getItemCount()); int width = 0; int height = 0; for (int i = 0; i < getItemCount(); i++) { measureScrapChild(recycler, i, View.MeasureSpec.makeMeasureSpec(i, View.MeasureSpec.UNSPECIFIED), View.MeasureSpec.makeMeasureSpec(i, View.MeasureSpec.UNSPECIFIED), mMeasuredDimension); if (getOrientation() == HORIZONTAL) { width = width + mMeasuredDimension[0]; if (i == 0) { height = mMeasuredDimension[1]; } } else { height = height + mMeasuredDimension[1]; if (i == 0) { width = mMeasuredDimension[0]; } } } switch (widthMode) { case View.MeasureSpec.EXACTLY: width = widthSize; case View.MeasureSpec.AT_MOST: case View.MeasureSpec.UNSPECIFIED: } switch (heightMode) { case View.MeasureSpec.EXACTLY: height = heightSize; case View.MeasureSpec.AT_MOST: case View.MeasureSpec.UNSPECIFIED: } setMeasuredDimension(width, height); } private void measureScrapChild(RecyclerView.Recycler recycler, int position, int widthSpec, int heightSpec, int[] measuredDimension) { try { View view = recycler.getViewForPosition(0);//fix 动态添加时报IndexOutOfBoundsException if (view != null) { RecyclerView.LayoutParams p = (RecyclerView.LayoutParams) view.getLayoutParams(); int childWidthSpec = ViewGroup.getChildMeasureSpec(widthSpec, getPaddingLeft() + getPaddingRight(), p.width); int childHeightSpec = ViewGroup.getChildMeasureSpec(heightSpec, getPaddingTop() + getPaddingBottom(), p.height); view.measure(childWidthSpec, childHeightSpec); measuredDimension[0] = view.getMeasuredWidth() + p.leftMargin + p.rightMargin; measuredDimension[1] = view.getMeasuredHeight() + p.bottomMargin + p.topMargin; recycler.recycleView(view); } } catch (Exception e) { e.printStackTrace(); } finally { } }}- - - - - - - - - - - - - - - - - - - - - - -
布局 :
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:background="@color/bg_white" android:orientation="vertical" tools:context=".Activity.Main.RecommendActivity"> <include android:id="@+id/title_bar" layout="@layout/layout_title_bar"/> <View android:layout_width="match_parent" android:layout_height="1dp" android:background="@color/line_gray"/> <android.support.v4.widget.SwipeRefreshLayout android:id="@+id/swipe_recommend" android:layout_width="match_parent" android:layout_height="match_parent"> <com.yiban.caesar.View.MyScrollView android:id="@+id/sv_recommend" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical"> <android.support.v7.widget.RecyclerView android:id="@+id/rv_recommend" android:layout_width="match_parent" android:layout_height="wrap_content" android:divider="@null" android:paddingLeft="4dp" android:paddingRight="4dp"/> <TextView android:id="@+id/tv_list_more" style="@style/text_30px_blue" android:layout_width="match_parent" android:layout_height="@dimen/px70" android:layout_marginBottom="@dimen/px54" android:layout_marginLeft="@dimen/px230" android:layout_marginRight="@dimen/px230" android:layout_marginTop="@dimen/px40" android:background="@mipmap/bg_chengzhangzhi" android:gravity="center" android:text="更多盘源" android:visibility="gone"/> </LinearLayout> </com.yiban.caesar.View.MyScrollView> </android.support.v4.widget.SwipeRefreshLayout></LinearLayout>
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