Activity.this.getCurrentFocus().getWindowToken()报空

最新推荐文章于 2023-03-07 14:06:54 发布
原创 最新推荐文章于 2023-03-07 14:06:54 发布 · 5.6k 阅读 · 1 ·
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#android

本文介绍了一种解决在滑动ListView时触发Activity.this.getCurrentFocus().getWindowToken()报空的方法。作者尝试通过判断输入法是否打开来规避此问题，但发现无法有效判断。最终采用try...catch...的方式解决了报错。

Activity.this.getCurrentFocus().getWindowToken()报空

因为我点击了一个Activity listView headView里加载的一个adapter控件，然后在滑动listView时Activity.this.getCurrentFocus().getWindowToken()就报空，好无语，折磨了好久，

因为我滑动的时候键盘是隐藏的，开始想这样判断下不让它报空，

InputMethodManager imm = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
boolean isOpen=imm.isActive();
isOpen若返回true，则表示输入法打开

if(isOpen){

       ((InputMethodManager) getApplicationContext()
.getSystemService(INPUT_METHOD_SERVICE))
.hideSoftInputFromWindow(QunDetailActivity.this
.getCurrentFocus().getWindowToken(),
InputMethodManager.HIDE_NOT_ALWAYS);

}

但好像 isOpen返回的一直是true，没办法

最后在网上找答案，用try...catch...解决

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那现在的MapFragment代码如下：package com.example.bus.ui.map; import android.Manifest; import android.content.Context; import android.content.Intent; import android.content.pm.PackageManager; import android.os.Bundle; import android.os.Handler; import android.os.Looper; import android.text.Editable; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.view.inputmethod.EditorInfo; import android.view.inputmethod.InputMethodManager; import android.widget.ArrayAdapter; import android.widget.Toast; import androidx.annotation.NonNull; import androidx.core.app.ActivityCompat; import androidx.core.content.ContextCompat; import androidx.fragment.app.Fragment; import androidx.recyclerview.widget.LinearLayoutManager; import androidx.constraintlayout.widget.ConstraintSet; import com.amap.api.maps.AMap; import com.amap.api.maps.AMapUtils; import com.amap.api.maps.CameraUpdateFactory; import com.amap.api.maps.MapView; import com.amap.api.maps.UiSettings; import com.amap.api.maps.model.LatLng; import com.amap.api.maps.model.Marker; import com.amap.api.maps.model.MarkerOptions; import com.amap.api.maps.model.MyLocationStyle; import com.amap.api.services.core.LatLonPoint; import com.amap.api.services.core.PoiItem; import com.amap.api.services.poisearch.PoiResult; import com.amap.api.services.poisearch.PoiSearch; import com.amap.api.services.geocoder.GeocodeSearch; import com.amap.api.services.geocoder.RegeocodeQuery; import com.amap.api.services.geocoder.RegeocodeResult; import com.example.bus.CityManager; import com.example.bus.PoiIntelligenceUtils; import com.example.bus.R; import com.example.bus.RealTimePoiSuggestHelper; import com.example.bus.RoutePlanActivity; import com.example.bus.ResultAdapter; import com.example.bus.databinding.FragmentMapBinding; import java.lang.reflect.Constructor; import java.lang.reflect.Field; import java.util.ArrayList; import java.util.List; import java.util.stream.Collectors; import java.util.HashSet; import java.util.Set; import com.amap.api.maps.model.BitmapDescriptorFactory; public class MapFragment extends Fragment implements PoiSearch.OnPoiSearchListener, GeocodeSearch.OnGeocodeSearchListener { private FragmentMapBinding binding; private MapView mapView; private AMap aMap; private RealTimePoiSuggestHelper activeSuggestHelper; // 数据 private List<PoiItem> poiList = new ArrayList<>(); private ResultAdapter adapter; private PoiSearch poiSearch; // 当前阶段：1=选择起点, 2=选择终点 private int selectionStage = 0; // 缓存已选 POI private PoiItem selectedStartPoi = null; private PoiItem selectedEndPoi = null; private Marker startMarker = null; private Marker endMarker = null; // 缓存关键词 private String lastStartKeyword = ""; private String lastEndKeyword = ""; // ✅ 当前城市 private String currentCity = ""; private static final int LOCATION_PERMISSION_REQUEST_CODE = 1001; // ✅ 标记是否已居中我的位置 private boolean userHasInteracted = false; // ✅ 反地理编码 private GeocodeSearch geocodeSearch; // 【关键新增】保存定位得到的“我的位置” private double myCurrentLat = 0; private double myCurrentLng = 0; private boolean isLocationReady = false; // 定位是否完成 @Override public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { binding = FragmentMapBinding.inflate(inflater, container, false); View root = binding.getRoot(); mapView = binding.mapView; mapView.onCreate(savedInstanceState); initViews(); setupMap(savedInstanceState); setupSearchSuggestion(); // 包含输入建议、防抖、回车事件 return root; } private void initViews() { adapter = new ResultAdapter(poiList, this::onPoiItemSelected); binding.resultList.setLayoutManager(new LinearLayoutManager(requireContext())); binding.resultList.setAdapter(adapter); binding.mapSearch.setOnClickListener(v -> performSearch()); binding.btnSwitchTarget.setOnClickListener(v -> { if (selectionStage == 1) { showEndpointSelection(binding.mapInput2.getText().toString().trim()); } else if (selectionStage == 2) { showStartpointSelection(binding.mapInput1.getText().toString().trim()); } }); binding.btnGoTo.setOnClickListener(v -> { if (selectedStartPoi != null && selectedEndPoi != null) { Intent intent = new Intent(requireContext(), RoutePlanActivity.class); intent.putExtra(RoutePlanActivity.EXTRA_SOURCE, RoutePlanActivity.SOURCE_FROM_MAP_DIRECT); intent.putExtra("start_lat", selectedStartPoi.getLatLonPoint().getLatitude()); intent.putExtra("start_lng", selectedStartPoi.getLatLonPoint().getLongitude()); intent.putExtra("target_lat", selectedEndPoi.getLatLonPoint().getLatitude()); intent.putExtra("target_lng", selectedEndPoi.getLatLonPoint().getLongitude()); intent.putExtra("target_title", selectedEndPoi.getTitle()); startActivity(intent); } else { Toast.makeText(requireContext(), "请完成起点和终点的选择", Toast.LENGTH_SHORT).show(); } }); } private void performSearch() { String startKeyword = binding.mapInput1.getText().toString().trim(); String endKeyword = binding.mapInput2.getText().toString().trim(); if (startKeyword.isEmpty()) { Toast.makeText(requireContext(), "请输入起点", Toast.LENGTH_SHORT).show(); return; } if (endKeyword.isEmpty()) { Toast.makeText(requireContext(), "请输入终点", Toast.LENGTH_SHORT).show(); return; } // 智能判断跳过搜索 if (startKeyword.equals(lastStartKeyword) && endKeyword.equals(lastEndKeyword) && selectedStartPoi != null && selectedEndPoi != null) { binding.btnGoTo.performClick(); return; } // 展示 UI binding.containerResultList.setVisibility(View.VISIBLE); binding.buttonGroup.setVisibility(View.VISIBLE); ConstraintSet constraintSet = new ConstraintSet(); constraintSet.clone( binding.getRoot()); constraintSet.connect( R.id.map_view, ConstraintSet.BOTTOM, R.id.container_result_list, ConstraintSet.TOP, 0 ); constraintSet.applyTo(binding.getRoot()); userHasInteracted = true; // 隐藏软键盘 View currentFocus = requireActivity().getCurrentFocus(); if (currentFocus != null) { currentFocus.clearFocus(); InputMethodManager imm = (InputMethodManager) requireContext().getSystemService(Context.INPUT_METHOD_SERVICE); imm.hideSoftInputFromWindow(currentFocus.getWindowToken(), 0); } // 执行搜索 if (!startKeyword.equals(lastStartKeyword)) { lastStartKeyword = startKeyword; lastEndKeyword = endKeyword; showStartpointSelection(startKeyword); } else if (!endKeyword.equals(lastEndKeyword)) { lastEndKeyword = endKeyword; showEndpointSelection(endKeyword); } else if (selectedStartPoi == null) { showStartpointSelection(startKeyword); } else { showEndpointSelection(endKeyword); } } private void showStartpointSelection(String keyword) { selectionStage = 1; binding.btnSwitchTarget.setText("前往选择终点"); binding.btnGoTo.setEnabled(false); binding.emptyView.setText("🔍 搜索起点中..."); binding.emptyView.setVisibility(View.VISIBLE); binding.resultList.setVisibility(View.GONE); doSearch(keyword); } private void showEndpointSelection(String keyword) { selectionStage = 2; binding.btnSwitchTarget.setText("回到选择起点"); binding.btnGoTo.setEnabled(false); binding.emptyView.setText("🔍 搜索终点中..."); binding.emptyView.setVisibility(View.VISIBLE); binding.resultList.setVisibility(View.GONE); doSearch(keyword); } private void doSearch(String keyword) { if (keyword.isEmpty()) return; CityManager.ParsedQuery parsed = CityManager.parse(keyword); String searchKeyword = parsed.keyword.isEmpty() ? keyword : parsed.keyword; String explicitCity = parsed.targetCity; if (!explicitCity.isEmpty()) { // ✅ 显式城市：只搜该城市 PoiSearch.Query query = new PoiSearch.Query(searchKeyword, "", explicitCity); query.setPageSize(20); query.setPageNum(0); try { poiSearch = new PoiSearch(requireContext(), query); poiSearch.setOnPoiSearchListener(this); poiSearch.searchPOIAsyn(); } catch (Exception e) { e.printStackTrace(); Toast.makeText(requireContext(), "搜索失败", Toast.LENGTH_SHORT).show(); } } else { // ❌ 无显式城市：并发搜 currentCity + 全国 List<PoiItem> localResults = new ArrayList<>(); List<PoiItem> nationalResults = new ArrayList<>(); Object lock = new Object(); boolean[] done = {false, false}; Runnable merge = () -> { synchronized (lock) { if (done[0] && done[1]) { Set<String> seen = new HashSet<>(); List<PoiItem> merged = new ArrayList<>(); // 本地优先 for (PoiItem item : localResults) { if (seen.add(item.getPoiId())) merged.add(item); } for (PoiItem item : nationalResults) { if (seen.add(item.getPoiId())) merged.add(item); } // 构造一个 mockResult 返回给 onPoiSearched 统一处理 // 构造一个 mockResult 返回给 onPoiSearched 统一处理 PoiResult mockResult; try { // 使用反射获取私有构造函数并创建实例 Constructor<PoiResult> constructor = PoiResult.class.getDeclaredConstructor(); constructor.setAccessible(true); mockResult = constructor.newInstance(); } catch (Exception e) { e.printStackTrace(); return; } try { Field field = PoiResult.class.getDeclaredField("mPois"); field.setAccessible(true); field.set(mockResult, merged); } catch (Exception e) { e.printStackTrace(); return; } final PoiResult resultToSend = mockResult; new Handler(Looper.getMainLooper()).post(() -> onPoiSearched(resultToSend, 1000) ); } } }; // 请求本地 requestSingleSearch(searchKeyword, currentCity, result -> { if (result != null && result.getPois() != null) { synchronized (lock) { localResults.addAll(result.getPois()); done[0] = true; } } merge.run(); }); // 请求全国 requestSingleSearch(searchKeyword, "", result -> { if (result != null && result.getPois() != null) { synchronized (lock) { nationalResults.addAll(result.getPois()); done[1] = true; } } merge.run(); }); } } // 辅助方法：异步执行单次搜索 private void requestSingleSearch(String keyword, String city, java.util.function.Consumer<PoiResult> callback) { PoiSearch.Query query = new PoiSearch.Query(keyword, "", city); query.setPageSize(20); query.setPageNum(0); try { PoiSearch search = new PoiSearch(requireContext(), query); search.setOnPoiSearchListener(new PoiSearch.OnPoiSearchListener() { @Override public void onPoiSearched(PoiResult result, int rCode) { callback.accept(rCode == 1000 ? result : null); } @Override public void onPoiItemSearched(PoiItem item, int rCode) {} }); search.searchPOIAsyn(); } catch (Exception e) { callback.accept(null); } } private void onPoiItemSelected(PoiItem item) { LatLng latLng = new LatLng(item.getLatLonPoint().getLatitude(), item.getLatLonPoint().getLongitude()); if (selectionStage == 1) { if (startMarker != null) { startMarker.remove(); startMarker = null; } startMarker = aMap.addMarker(new MarkerOptions() .position(latLng) .title("起点：" + item.getTitle()) .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_GREEN))); selectedStartPoi = item; aMap.animateCamera(CameraUpdateFactory.newLatLngZoom(latLng, 14f)); updateGoToButtonState(); } else if (selectionStage == 2) { if (endMarker != null) { endMarker.remove(); endMarker = null; } endMarker = aMap.addMarker(new MarkerOptions() .position(latLng) .title("终点：" + item.getTitle()) .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_RED))); selectedEndPoi = item; aMap.animateCamera(CameraUpdateFactory.newLatLngZoom(latLng, 14f)); updateGoToButtonState(); } userHasInteracted = true; } private void updateGoToButtonState() { binding.btnGoTo.setEnabled(selectedStartPoi != null && selectedEndPoi != null); } @Override public void onPoiSearched(PoiResult result, int rCode) { if (rCode == 1000 && result != null && result.getPois() != null && !result.getPois().isEmpty()) { List<PoiItem> rawList = result.getPois(); // 获取原始关键词并解析 String keyword = getCurrentKeyword(); CityManager.ParsedQuery parsed = CityManager.parse(keyword); boolean hasExplicitCity = !parsed.targetCity.isEmpty(); // 是否写了“XX市” // 判断是否为泛词 boolean isGeneric = PoiIntelligenceUtils.isGenericCategory(rawList); // ✅ 核心逻辑分支 if (!isGeneric || hasExplicitCity) { // 情况1：不是泛词 → 正常展示 // 情况2：是泛词但指定了城市（如“深圳市麦当劳”）→ 不 nearby，直接展示 updateResultList(rawList); return; } // ✅ 情况3：是泛词 + 无显式城市 → 走原 nearby 搜索逻辑 if (isLocationReady) { LatLonPoint center = new LatLonPoint(myCurrentLat, myCurrentLng); String searchKeyword = parsed.keyword.isEmpty() ? keyword : parsed.keyword; PoiSearch.Query query = new PoiSearch.Query(searchKeyword, "", ""); query.setPageSize(20); try { PoiSearch nearbySearch = new PoiSearch(requireContext(), query); nearbySearch.setBound(new PoiSearch.SearchBound(center, 3000)); nearbySearch.setOnPoiSearchListener(new PoiSearch.OnPoiSearchListener() { @Override public void onPoiSearched(PoiResult res, int code) { if (code == 1000 && res != null && res.getPois() != null && !res.getPois().isEmpty()) { List<PoiItem> sorted = sortByDistance(res.getPois(), myCurrentLat, myCurrentLng); updateResultList(sorted); } else { List<PoiItem> fallback = sortByDistance(rawList, myCurrentLat, myCurrentLng); updateResultList(fallback); } } @Override public void onPoiItemSearched(PoiItem item, int rCode) {} }); nearbySearch.searchPOIAsyn(); } catch (Exception e) { e.printStackTrace(); List<PoiItem> fallback = sortByDistance(rawList, myCurrentLat, myCurrentLng); updateResultList(fallback); } } else { updateResultList(rawList); } } else { handleSearchError(rCode); binding.emptyView.setText("⚠️ 未找到相关地点"); binding.emptyView.setVisibility(View.VISIBLE); binding.resultList.setVisibility(View.GONE); } } private String getCurrentKeyword() { return selectionStage == 1 ? binding.mapInput1.getText().toString().trim() : binding.mapInput2.getText().toString().trim(); } private void updateResultList(List<PoiItem> list) { poiList.clear(); poiList.addAll(list); adapter.notifyDataSetChanged(); binding.resultList.scrollToPosition(0); binding.emptyView.setVisibility(View.GONE); binding.resultList.setVisibility(View.VISIBLE); if (!list.isEmpty()) { adapter.setSelected(0); onPoiItemSelected(list.get(0)); } } @Override public void onPoiItemSearched(PoiItem item, int rCode) { // 必须实现 } private LatLng toLatLng(LatLonPoint point) { if (point == null) return null; return new LatLng(point.getLatitude(), point.getLongitude()); } // ✅ 按距离排序 private List<PoiItem> sortByDistance(List<PoiItem> list, double lat, double lng) { LatLng me = new LatLng(lat, lng); return list.stream() .sorted((a, b) -> { double da = AMapUtils.calculateLineDistance(toLatLng(a.getLatLonPoint()), me); double db = AMapUtils.calculateLineDistance(toLatLng(b.getLatLonPoint()), me); return Double.compare(da, db); }) .collect(Collectors.toList()); } private void setupMap(Bundle savedInstanceState) { mapView.onCreate(savedInstanceState); aMap = mapView.getMap(); if (aMap != null) { initMapSettings(); } else { new Handler(Looper.getMainLooper()).post(() -> { aMap = mapView.getMap(); if (aMap != null) { initMapSettings(); } else { waitAMapReady(); } }); } try { geocodeSearch = new GeocodeSearch(requireContext()); geocodeSearch.setOnGeocodeSearchListener(this); } catch (Exception e) { e.printStackTrace(); } } private void waitAMapReady() { new Handler(Looper.getMainLooper()).postDelayed(new Runnable() { int retry = 0; @Override public void run() { if (mapView == null) return; aMap = mapView.getMap(); if (aMap != null) { initMapSettings(); } else if (retry++ < 30) { new Handler(Looper.getMainLooper()).postDelayed(this, 100); } } }, 100); } private void initMapSettings() { UiSettings uiSettings = aMap.getUiSettings(); uiSettings.setZoomControlsEnabled(true); uiSettings.setCompassEnabled(true); uiSettings.setScrollGesturesEnabled(true); uiSettings.setMyLocationButtonEnabled(true); new Handler(Looper.getMainLooper()).post(() -> aMap.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(39.909186, 116.397411), 10f)) ); enableMyLocationLayer(); } private void enableMyLocationLayer() { if (aMap == null) return; if (ContextCompat.checkSelfPermission(requireContext(), Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) { MyLocationStyle myLocationStyle = new MyLocationStyle(); myLocationStyle.myLocationType(MyLocationStyle.LOCATION_TYPE_LOCATION_ROTATE_NO_CENTER); aMap.setMyLocationStyle(myLocationStyle); aMap.setMyLocationEnabled(true); AMap.OnMyLocationChangeListener listener = location -> { if (location != null && !userHasInteracted) { LatLng curLatlng = new LatLng(location.getLatitude(), location.getLongitude()); if (activeSuggestHelper != null) { activeSuggestHelper.setLocationBias(location.getLatitude(), location.getLongitude()); } myCurrentLat = location.getLatitude(); myCurrentLng = location.getLongitude(); isLocationReady = true; aMap.animateCamera(CameraUpdateFactory.newLatLngZoom(curLatlng, 16f)); userHasInteracted = true; LatLonPoint point = new LatLonPoint(myCurrentLat, myCurrentLng); RegeocodeQuery query = new RegeocodeQuery(point, 200, GeocodeSearch.AMAP); try { geocodeSearch.getFromLocationAsyn(query); } catch (Exception e) { e.printStackTrace(); } aMap.setOnMyLocationChangeListener(null); } }; aMap.setOnMyLocationChangeListener(listener); } else { ActivityCompat.requestPermissions(requireActivity(), new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, LOCATION_PERMISSION_REQUEST_CODE); } } @Override public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) { if (requestCode == LOCATION_PERMISSION_REQUEST_CODE) { if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) { if (aMap != null) { MyLocationStyle myLocationStyle = new MyLocationStyle(); myLocationStyle.myLocationType(MyLocationStyle.LOCATION_TYPE_LOCATION_ROTATE_NO_CENTER); aMap.setMyLocationStyle(myLocationStyle); aMap.setMyLocationEnabled(true); AMap.OnMyLocationChangeListener listener = location -> { if (location != null && !userHasInteracted) { LatLng curLatlng = new LatLng(location.getLatitude(), location.getLongitude()); if (activeSuggestHelper != null) { activeSuggestHelper.setLocationBias(location.getLatitude(), location.getLongitude()); } myCurrentLat = location.getLatitude(); myCurrentLng = location.getLongitude(); isLocationReady = true; aMap.animateCamera(CameraUpdateFactory.newLatLngZoom(curLatlng, 16f)); userHasInteracted = true; LatLonPoint point = new LatLonPoint(myCurrentLat, myCurrentLng); RegeocodeQuery query = new RegeocodeQuery(point, 200, GeocodeSearch.AMAP); try { geocodeSearch.getFromLocationAsyn(query); } catch (Exception e) { e.printStackTrace(); } aMap.setOnMyLocationChangeListener(null); } }; aMap.setOnMyLocationChangeListener(listener); } } } } @Override public void onRegeocodeSearched(RegeocodeResult result, int rCode) { if (rCode == 1000 && result != null && result.getRegeocodeAddress() != null) { String city = result.getRegeocodeAddress().getCity(); currentCity = (city != null && !city.isEmpty()) ? city : result.getRegeocodeAddress().getProvince(); if (activeSuggestHelper != null) { activeSuggestHelper.setCurrentCity(currentCity); } } } @Override public void onGeocodeSearched(com.amap.api.services.geocoder.GeocodeResult geocodeResult, int i) { // 忽略 } @Override public void onResume() { super.onResume(); mapView.onResume(); if (!userHasInteracted) { enableMyLocationLayer(); } } @Override public void onPause() { super.onPause(); mapView.onPause(); } @Override public void onDestroyView() { super.onDestroyView(); mapView.onDestroy(); geocodeSearch = null; binding = null; } @Override public void onSaveInstanceState(@NonNull Bundle outState) { super.onSaveInstanceState(outState); mapView.onSaveInstanceState(outState); } // ✅ 修改 RealTimePoiSuggestHelper 来支持距离排序建议 private void setupSearchSuggestion() { // 创建 suggestHelper RealTimePoiSuggestHelper suggestHelper = new RealTimePoiSuggestHelper(requireContext()); suggestHelper.setCurrentCity(currentCity); activeSuggestHelper = suggestHelper; // 缓存引用 suggestHelper.setCallback(suggestions -> { if (suggestions.length > 0) { ArrayAdapter<String> adapter = new ArrayAdapter<>( requireContext(), android.R.layout.simple_dropdown_item_1line, suggestions ); new Handler(Looper.getMainLooper()).post(() -> { binding.mapInput1.setAdapter(adapter); binding.mapInput2.setAdapter(adapter); if (requireActivity().getCurrentFocus() == binding.mapInput1) { binding.mapInput1.showDropDown(); } else if (requireActivity().getCurrentFocus() == binding.mapInput2) { binding.mapInput2.showDropDown(); } }); } }); // 注意：location bias 需要在定位完成后设置！ if (isLocationReady) { suggestHelper.setLocationBias(myCurrentLat, myCurrentLng); } Handler handler = new Handler(Looper.getMainLooper()); Runnable[] pending1 = {null}, pending2 = {null}; binding.mapInput1.addTextChangedListener(new SimpleTextWatcher(s -> { if (pending1[0] != null) handler.removeCallbacks(pending1[0]); if (s.length() == 0) { binding.mapInput1.setAdapter(null); return; } pending1[0] = () -> suggestHelper.requestSuggestions(s.toString()); handler.postDelayed(pending1[0], 300); })); binding.mapInput2.addTextChangedListener(new SimpleTextWatcher(s -> { if (pending2[0] != null) handler.removeCallbacks(pending2[0]); if (s.length() == 0) { binding.mapInput2.setAdapter(null); return; } pending2[0] = () -> suggestHelper.requestSuggestions(s.toString()); handler.postDelayed(pending2[0], 300); })); // Enter 键搜索 binding.mapInput1.setOnEditorActionListener((v, actionId, event) -> { if ((actionId & EditorInfo.IME_MASK_ACTION) == EditorInfo.IME_ACTION_SEARCH) { performSearch(); return true; } return false; }); binding.mapInput2.setOnEditorActionListener((v, actionId, event) -> { if ((actionId & EditorInfo.IME_MASK_ACTION) == EditorInfo.IME_ACTION_SEARCH) { performSearch(); return true; } return false; }); } private void handleSearchError(int rCode) { String msg; switch (rCode) { case 12: msg = "API Key 错误"; break; case 27: msg = "网络连接失败"; break; case 30: msg = "SHA1 或包名错误"; break; case 33: msg = "请求频繁"; break; default: msg = "搜索失败: " + rCode; break; } Toast.makeText(requireContext(), msg, Toast.LENGTH_SHORT).show(); } private static class SimpleTextWatcher implements android.text.TextWatcher { private final java.util.function.Consumer<CharSequence> onTextChanged; public SimpleTextWatcher(java.util.function.Consumer<CharSequence> onTextChanged) { this.onTextChanged = onTextChanged; } @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) {} @Override public void afterTextChanged(Editable s) {} @Override public void onTextChanged(CharSequence s, int start, int before, int count) { onTextChanged.accept(s); } } } SearchResultActivity代码如下：package com.example.bus; import android.Manifest; import android.content.Intent; import android.content.pm.PackageManager; import android.os.Bundle; import android.os.Handler; import android.os.Looper; import android.text.Editable; import android.text.TextWatcher; import android.view.View; import android.view.inputmethod.EditorInfo; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.TextView; import android.widget.Toast; import androidx.annotation.NonNull; import androidx.appcompat.app.AppCompatActivity; import androidx.core.app.ActivityCompat; import androidx.core.content.ContextCompat; import androidx.recyclerview.widget.LinearLayoutManager; import androidx.recyclerview.widget.RecyclerView; import com.amap.api.maps.AMap; import com.amap.api.maps.CameraUpdateFactory; import com.amap.api.maps.MapView; import com.amap.api.maps.UiSettings; import com.amap.api.maps.model.LatLng; import com.amap.api.maps.model.Marker; import com.amap.api.maps.model.MarkerOptions; import com.amap.api.maps.model.MyLocationStyle; import com.amap.api.services.core.LatLonPoint; import com.amap.api.services.core.PoiItem; import com.amap.api.services.poisearch.PoiResult; import com.amap.api.services.poisearch.PoiSearch; import com.amap.api.services.geocoder.GeocodeSearch; import com.amap.api.services.geocoder.RegeocodeQuery; import com.amap.api.services.geocoder.RegeocodeResult; import java.lang.reflect.Constructor; import java.lang.reflect.Field; import java.util.ArrayList; import java.util.Comparator; import java.util.List; import java.util.stream.Collectors; import java.util.HashSet; import java.util.Set; public class SearchResultActivity extends AppCompatActivity implements PoiSearch.OnPoiSearchListener, GeocodeSearch.OnGeocodeSearchListener { private Button searchBtn, goToBtn; private RecyclerView resultListView; private List<PoiItem> poiList = new ArrayList<>(); private ResultAdapter adapter; private PoiSearch poiSearch; // 地图相关 private MapView mapView; private AMap aMap; private Marker selectedMarker; // 终点标记 // 输入提示 private GeocodeSearch geocodeSearch; // 当前城市 private String currentCity = ""; // 是否已与地图交互（防止重复居中） private boolean userHasInteracted = false; private static final int LOCATION_PERMISSION_REQUEST_CODE = 1001; // 空状态提示视图 private TextView emptyView; // 【关键新增】保存定位得到的“我的位置” private double myCurrentLat = 0; private double myCurrentLng = 0; private boolean isLocationReady = false; // 定位是否完成 // 缓存从 HomeFragment 传来的关键词，等待定位完成后使用 private String pendingKeyword = null; // ✅ 新增：将搜索输入框提升为成员变量 private android.widget.AutoCompleteTextView searchInput; // ✅ 实时建议助手（延迟初始化） private RealTimePoiSuggestHelper suggestHelper; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_search_result); initViews(); setupMap(savedInstanceState); try { geocodeSearch = new GeocodeSearch(this); geocodeSearch.setOnGeocodeSearchListener(this); } catch (Exception e) { e.printStackTrace(); } pendingKeyword = getIntent().getStringExtra("keyword"); // ✅ 初始化 suggestHelper，但暂不设 location bias suggestHelper = new RealTimePoiSuggestHelper(this); suggestHelper.setCurrentCity(currentCity); suggestHelper.setCallback(suggestions -> { if (suggestions.length > 0) { ArrayAdapter<String> adapter = new ArrayAdapter<>( this, android.R.layout.simple_dropdown_item_1line, suggestions ); new Handler(Looper.getMainLooper()).post(() -> { searchInput.setAdapter(adapter); if (getCurrentFocus() == searchInput) { searchInput.showDropDown(); } }); } }); } private void initViews() { searchBtn = findViewById(R.id.search_btn); resultListView = findViewById(R.id.result_list); goToBtn = findViewById(R.id.btn_go_to); emptyView = findViewById(R.id.empty_view); searchInput = findViewById(R.id.search_input); // ✅ 初始化成员变量 goToBtn.setEnabled(false); adapter = new ResultAdapter(poiList, this::onPoiItemSelected); resultListView.setLayoutManager(new LinearLayoutManager(this)); resultListView.setAdapter(adapter); resultListView.setVisibility(View.GONE); emptyView.setVisibility(View.GONE); // 修改：传递真实定位点 goToBtn.setOnClickListener(v -> { if (selectedMarker == null) { Toast.makeText(this, "请先选择一个位置", Toast.LENGTH_SHORT).show(); return; } LatLng targetPos = selectedMarker.getPosition(); // 确保定位已完成 if (!isLocationReady) { Toast.makeText(this, "正在获取您的位置，请稍后再试", Toast.LENGTH_SHORT).show(); return; } Intent intent = new Intent(SearchResultActivity.this, RoutePlanActivity.class); intent.putExtra("start_lat", myCurrentLat); intent.putExtra("start_lng", myCurrentLng); intent.putExtra("target_lat", targetPos.latitude); intent.putExtra("target_lng", targetPos.longitude); intent.putExtra(RoutePlanActivity.EXTRA_SOURCE, RoutePlanActivity.SOURCE_FROM_SEARCH_RESULT); startActivity(intent); finish(); }); } private void setupMap(Bundle savedInstanceState) { mapView = findViewById(R.id.map_view); mapView.onCreate(savedInstanceState); aMap = mapView.getMap(); if (aMap != null) { initMapSettings(); } else { new Handler(Looper.getMainLooper()).post(() -> { aMap = mapView.getMap(); if (aMap != null) { initMapSettings(); } else { waitAMapReady(); } }); } } private void waitAMapReady() { new Handler(Looper.getMainLooper()).postDelayed(new Runnable() { int retry = 0; @Override public void run() { if (mapView == null) return; aMap = mapView.getMap(); if (aMap != null) { initMapSettings(); } else if (retry++ < 30) { new Handler(Looper.getMainLooper()).postDelayed(this, 100); } } }, 100); } private void initMapSettings() { UiSettings uiSettings = aMap.getUiSettings(); uiSettings.setZoomControlsEnabled(true); uiSettings.setCompassEnabled(true); uiSettings.setScrollGesturesEnabled(true); uiSettings.setMyLocationButtonEnabled(true); // 初始视野：中国中心 new Handler(Looper.getMainLooper()).post(() -> aMap.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(35.8617, 104.1954), 4f)) ); enableMyLocationLayer(); } private void enableMyLocationLayer() { if (aMap == null) return; if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) { MyLocationStyle myLocationStyle = new MyLocationStyle(); myLocationStyle.myLocationType(MyLocationStyle.LOCATION_TYPE_LOCATION_ROTATE_NO_CENTER); aMap.setMyLocationStyle(myLocationStyle); aMap.setMyLocationEnabled(true); AMap.OnMyLocationChangeListener listener = location -> { if (location != null && !userHasInteracted) { LatLng curLatlng = new LatLng(location.getLatitude(), location.getLongitude()); // 记录真实“我的位置” myCurrentLat = location.getLatitude(); myCurrentLng = location.getLongitude(); isLocationReady = true; // 更新 suggestHelper 的 location bias suggestHelper.setLocationBias(myCurrentLat, myCurrentLng); // ✅ 先居中地图 aMap.animateCamera(CameraUpdateFactory.newLatLngZoom(curLatlng, 16f), 500, null); userHasInteracted = true; // 获取当前城市 LatLonPoint point = new LatLonPoint(myCurrentLat, myCurrentLng); RegeocodeQuery query = new RegeocodeQuery(point, 200, GeocodeSearch.AMAP); try { geocodeSearch.getFromLocationAsyn(query); } catch (Exception e) { e.printStackTrace(); } // ✅ 关键修改：延迟 800ms 再触发搜索，给地图留出渲染时间 new Handler(Looper.getMainLooper()).postDelayed(() -> { if (pendingKeyword != null && !pendingKeyword.isEmpty()) { performSearchWithKeyword(pendingKeyword); } }, 800); // 防止重复触发 aMap.setOnMyLocationChangeListener(null); } }; aMap.setOnMyLocationChangeListener(listener); } else { ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, LOCATION_PERMISSION_REQUEST_CODE); } } @Override public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) { super.onRequestPermissionsResult(requestCode, permissions, grantResults); if (requestCode == LOCATION_PERMISSION_REQUEST_CODE) { if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) { enableMyLocationLayer(); } } } private void setupSearchSuggestion() { Handler handler = new Handler(Looper.getMainLooper()); Runnable[] pendingRunnable = {null}; searchInput.addTextChangedListener(new TextWatcher() { @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) {} @Override public void onTextChanged(CharSequence s, int start, int before, int count) { if (pendingRunnable[0] != null) { handler.removeCallbacks(pendingRunnable[0]); } if (s.length() == 0) { searchInput.setAdapter(null); return; } pendingRunnable[0] = () -> suggestHelper.requestSuggestions(s.toString()); handler.postDelayed(pendingRunnable[0], 300); } @Override public void afterTextChanged(Editable s) {} }); searchInput.setOnEditorActionListener((v, actionId, event) -> { if ((actionId & EditorInfo.IME_MASK_ACTION) == EditorInfo.IME_ACTION_SEARCH) { searchBtn.performClick(); return true; } return false; }); searchBtn.setOnClickListener(v -> { String keyword = searchInput.getText().toString().trim(); if (!keyword.isEmpty()) { performSearch(keyword); } else { Toast.makeText(this, "请输入关键词", Toast.LENGTH_SHORT).show(); } }); } // ✅ 修改：先设置文本，再模拟点击按钮（等价于用户操作） private void performSearchWithKeyword(String keyword) { searchInput.setText(keyword); searchInput.clearFocus(); searchBtn.performClick(); // ✅ 触发完整 UI 搜索流程 } private void performSearch(String keyword) { emptyView.setText("🔍 搜索中..."); emptyView.setVisibility(View.VISIBLE); resultListView.setVisibility(View.GONE); CityManager.ParsedQuery parsed = CityManager.parse(keyword); String searchKeyword = parsed.keyword.isEmpty() ? keyword : parsed.keyword; String explicitCity = parsed.targetCity; if (!explicitCity.isEmpty()) { // 显式城市 → 单搜 PoiSearch.Query query = new PoiSearch.Query(searchKeyword, "", explicitCity); query.setPageSize(20); query.setPageNum(0); try { poiSearch = new PoiSearch(this, query); poiSearch.setOnPoiSearchListener(this); poiSearch.searchPOIAsyn(); } catch (Exception e) { Toast.makeText(this, "搜索失败", Toast.LENGTH_SHORT).show(); } } else { // 无显式城市 → 双请求合并 List<PoiItem> localResults = new ArrayList<>(); List<PoiItem> nationalResults = new ArrayList<>(); Object lock = new Object(); boolean[] done = {false, false}; Runnable merge = () -> { synchronized (lock) { if (done[0] && done[1]) { Set<String> seen = new HashSet<>(); List<PoiItem> merged = new ArrayList<>(); for (PoiItem item : localResults) { if (seen.add(item.getPoiId())) merged.add(item); } for (PoiItem item : nationalResults) { if (seen.add(item.getPoiId())) merged.add(item); } // 构造一个 mockResult 返回给 onPoiSearched 统一处理 PoiResult mockResult; try { // 使用反射获取私有构造函数并创建实例 Constructor<PoiResult> constructor = PoiResult.class.getDeclaredConstructor(); constructor.setAccessible(true); mockResult = constructor.newInstance(); } catch (Exception e) { e.printStackTrace(); return; } try { Field field = PoiResult.class.getDeclaredField("mPois"); field.setAccessible(true); field.set(mockResult, merged); } catch (Exception e) { e.printStackTrace(); return; } final PoiResult resultToSend = mockResult; new Handler(Looper.getMainLooper()).post(() -> onPoiSearched(resultToSend, 1000) ); } } }; requestSingleSearch(searchKeyword, currentCity, result -> { if (result != null && result.getPois() != null) { synchronized (lock) { localResults.addAll(result.getPois()); done[0] = true; } } merge.run(); }); requestSingleSearch(searchKeyword, "", result -> { if (result != null && result.getPois() != null) { synchronized (lock) { nationalResults.addAll(result.getPois()); done[1] = true; } } merge.run(); }); } } // 复用辅助方法 private void requestSingleSearch(String keyword, String city, java.util.function.Consumer<PoiResult> callback) { PoiSearch.Query query = new PoiSearch.Query(keyword, "", city); query.setPageSize(20); query.setPageNum(0); try { PoiSearch search = new PoiSearch(this, query); search.setOnPoiSearchListener(new PoiSearch.OnPoiSearchListener() { @Override public void onPoiSearched(PoiResult result, int rCode) { callback.accept(rCode == 1000 ? result : null); } @Override public void onPoiItemSearched(PoiItem item, int rCode) {} }); search.searchPOIAsyn(); } catch (Exception e) { callback.accept(null); } } private void onPoiItemSelected(PoiItem item) { LatLng latLng = new LatLng(item.getLatLonPoint().getLatitude(), item.getLatLonPoint().getLongitude()); if (selectedMarker != null) { selectedMarker.remove(); selectedMarker = null; } selectedMarker = aMap.addMarker(new MarkerOptions() .position(latLng) .title("终点：" + item.getTitle()) .icon(com.amap.api.maps.model.BitmapDescriptorFactory.defaultMarker( com.amap.api.maps.model.BitmapDescriptorFactory.HUE_RED))); aMap.animateCamera(CameraUpdateFactory.newLatLngZoom(latLng, 14f)); goToBtn.setEnabled(true); } // ✅ 工具方法：转换 LatLonPoint → LatLng private LatLng toLatLng(LatLonPoint point) { if (point == null) return null; return new LatLng(point.getLatitude(), point.getLongitude()); } // ✅ 按距离排序 private List<PoiItem> sortByDistance(List<PoiItem> list, double lat, double lng) { LatLng me = new LatLng(lat, lng); return list.stream() .sorted(Comparator.comparingDouble(poi -> com.amap.api.maps.AMapUtils.calculateLineDistance(toLatLng(poi.getLatLonPoint()), me))) .collect(Collectors.toList()); } @Override public void onPoiSearched(PoiResult result, int rCode) { if (rCode == 1000 && result != null && result.getPois() != null && !result.getPois().isEmpty()) { List<PoiItem> rawList = result.getPois(); String keyword = searchInput.getText().toString().trim(); CityManager.ParsedQuery parsed = CityManager.parse(keyword); boolean hasExplicitCity = !parsed.targetCity.isEmpty(); boolean isGeneric = PoiIntelligenceUtils.isGenericCategory(rawList); if (!isGeneric || hasExplicitCity) { updateResultList(rawList); return; } if (isLocationReady) { LatLonPoint center = new LatLonPoint(myCurrentLat, myCurrentLng); String searchKeyword = parsed.keyword.isEmpty() ? keyword : parsed.keyword; PoiSearch.Query query = new PoiSearch.Query(searchKeyword, "", ""); query.setPageSize(20); try { PoiSearch nearbySearch = new PoiSearch(this, query); nearbySearch.setBound(new PoiSearch.SearchBound(center, 3000)); nearbySearch.setOnPoiSearchListener(new PoiSearch.OnPoiSearchListener() { @Override public void onPoiSearched(PoiResult res, int code) { if (code == 1000 && res != null && res.getPois() != null && !res.getPois().isEmpty()) { List<PoiItem> sorted = sortByDistance(res.getPois(), myCurrentLat, myCurrentLng); updateResultList(sorted); } else { List<PoiItem> fallback = sortByDistance(rawList, myCurrentLat, myCurrentLng); updateResultList(fallback); } } @Override public void onPoiItemSearched(PoiItem item, int rCode) {} }); nearbySearch.searchPOIAsyn(); } catch (Exception e) { e.printStackTrace(); List<PoiItem> fallback = sortByDistance(rawList, myCurrentLat, myCurrentLng); updateResultList(fallback); } } else { updateResultList(rawList); } } else { emptyView.setText("⚠️ 未找到相关地点"); emptyView.setVisibility(View.VISIBLE); resultListView.setVisibility(View.GONE); } } // ✅ 统一更新方法 private void updateResultList(List<PoiItem> list) { poiList.clear(); poiList.addAll(list); adapter.notifyDataSetChanged(); resultListView.scrollToPosition(0); emptyView.setVisibility(View.GONE); resultListView.setVisibility(View.VISIBLE); if (!list.isEmpty()) { adapter.setSelected(0); onPoiItemSelected(list.get(0)); } } @Override public void onPoiItemSearched(PoiItem item, int rCode) { // 必须实现 } @Override public void onRegeocodeSearched(RegeocodeResult result, int rCode) { if (rCode == 1000 && result != null && result.getRegeocodeAddress() != null) { String city = result.getRegeocodeAddress().getCity(); currentCity = (city != null && !city.isEmpty()) ? city : result.getRegeocodeAddress().getProvince(); // 同步给 suggestHelper suggestHelper.setCurrentCity(currentCity); } } @Override public void onGeocodeSearched(com.amap.api.services.geocoder.GeocodeResult geocodeResult, int i) { // 忽略 } @Override protected void onResume() { super.onResume(); mapView.onResume(); setupSearchSuggestion(); // 重新绑定监听器 } @Override protected void onPause() { super.onPause(); mapView.onPause(); } @Override protected void onDestroy() { super.onDestroy(); mapView.onDestroy(); geocodeSearch = null; } @Override protected void onSaveInstanceState(@NonNull Bundle outState) { super.onSaveInstanceState(outState); mapView.onSaveInstanceState(outState); } @Override public boolean onSupportNavigateUp() { onBackPressed(); return true; } } 请你对这个搜索不到结果的问题对我目前的代码做最小量的修改，让他能够跟我原来的代码一样很快的搜索到结果。为我提供修改好的完整代码
最新发布
12-06
你当前的问题是：**使用反射构造 `PoiResult` 失败，导致 `onPoiSearched()` 被调用时 `result.getPois()` 返回 null 或空列表**，最终 UI 无法展示结果。 --- ## ✅ **解决方案目标** - 最小修改 - 不依赖反射 - ...
总之现在的代码如下：package com.example.bus.ui.map; import android.Manifest; import android.content.Context; import android.content.Intent; import android.content.pm.PackageManager; import android.os.Bundle; import android.os.Handler; import android.os.Looper; import android.text.Editable; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.view.inputmethod.EditorInfo; import android.view.inputmethod.InputMethodManager; import android.widget.ArrayAdapter; import android.widget.Toast; import androidx.annotation.NonNull; import androidx.core.app.ActivityCompat; import androidx.core.content.ContextCompat; import androidx.fragment.app.Fragment; import androidx.recyclerview.widget.LinearLayoutManager; import androidx.constraintlayout.widget.ConstraintSet; import com.amap.api.maps.AMap; import com.amap.api.maps.AMapUtils; import com.amap.api.maps.CameraUpdateFactory; import com.amap.api.maps.MapView; import com.amap.api.maps.UiSettings; import com.amap.api.maps.model.LatLng; import com.amap.api.maps.model.Marker; import com.amap.api.maps.model.MarkerOptions; import com.amap.api.maps.model.MyLocationStyle; import com.amap.api.services.core.LatLonPoint; import com.amap.api.services.core.PoiItem; import com.amap.api.services.poisearch.PoiResult; import com.amap.api.services.poisearch.PoiSearch; import com.amap.api.services.geocoder.GeocodeSearch; import com.amap.api.services.geocoder.RegeocodeQuery; import com.amap.api.services.geocoder.RegeocodeResult; import com.example.bus.CityManager; import com.example.bus.PoiIntelligenceUtils; import com.example.bus.R; import com.example.bus.RealTimePoiSuggestHelper; import com.example.bus.RoutePlanActivity; import com.example.bus.ResultAdapter; import com.example.bus.databinding.FragmentMapBinding; import java.util.ArrayList; import java.util.HashSet; import java.util.List; import java.util.stream.Collectors; import com.amap.api.maps.model.BitmapDescriptorFactory; public class MapFragment extends Fragment implements PoiSearch.OnPoiSearchListener, GeocodeSearch.OnGeocodeSearchListener { private FragmentMapBinding binding; private MapView mapView; private AMap aMap; private RealTimePoiSuggestHelper activeSuggestHelper; private List<PoiItem> poiList = new ArrayList<>(); private ResultAdapter adapter; private PoiSearch poiSearch; private int selectionStage = 0; private PoiItem selectedStartPoi = null; private PoiItem selectedEndPoi = null; private Marker startMarker = null; private Marker endMarker = null; private String lastStartKeyword = ""; private String lastEndKeyword = ""; private String currentCity = ""; private static final int LOCATION_PERMISSION_REQUEST_CODE = 1001; private boolean userHasInteracted = false; private GeocodeSearch geocodeSearch; private double myCurrentLat = 0; private double myCurrentLng = 0; private boolean isLocationReady = false; @Override public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { binding = FragmentMapBinding.inflate(inflater, container, false); View root = binding.getRoot(); mapView = binding.mapView; mapView.onCreate(savedInstanceState); initViews(); setupMap(savedInstanceState); setupSearchSuggestion(); return root; } private void setupMap(Bundle savedInstanceState) { mapView = binding.mapView; mapView.onCreate(savedInstanceState); aMap = mapView.getMap(); if (aMap != null) { initMapSettings(); } else { new Handler(Looper.getMainLooper()).post(() -> { aMap = mapView.getMap(); if (aMap != null) { initMapSettings(); } else { waitAMapReady(); } }); } try { geocodeSearch = new GeocodeSearch(requireContext()); geocodeSearch.setOnGeocodeSearchListener(this); } catch (com.amap.api.services.core.AMapException e) { e.printStackTrace(); Toast.makeText(requireContext(), "地理编码服务初始化失败", Toast.LENGTH_SHORT).show(); } geocodeSearch.setOnGeocodeSearchListener(this); } private void waitAMapReady() { new Handler(Looper.getMainLooper()).postDelayed(new Runnable() { int retry = 0; @Override public void run() { if (mapView == null) return; aMap = mapView.getMap(); if (aMap != null) { initMapSettings(); } else if (retry++ < 30) { new Handler(Looper.getMainLooper()).postDelayed(this, 100); } } }, 100); } private void initMapSettings() { UiSettings uiSettings = aMap.getUiSettings(); uiSettings.setZoomControlsEnabled(true); uiSettings.setCompassEnabled(true); uiSettings.setScrollGesturesEnabled(true); uiSettings.setMyLocationButtonEnabled(true); // 初始视野：中国中心 new Handler(Looper.getMainLooper()).post(() -> aMap.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(35.8617, 104.1954), 4f)) ); enableMyLocationLayer(); } private void initViews() { adapter = new ResultAdapter(poiList, this::onPoiItemSelected); binding.resultList.setLayoutManager(new LinearLayoutManager(requireContext())); binding.resultList.setAdapter(adapter); binding.mapSearch.setOnClickListener(v -> performSearch()); binding.btnSwitchTarget.setOnClickListener(v -> { if (selectionStage == 1) { showEndpointSelection(binding.mapInput2.getText().toString().trim()); } else if (selectionStage == 2) { showStartpointSelection(binding.mapInput1.getText().toString().trim()); } }); binding.btnGoTo.setOnClickListener(v -> { if (selectedStartPoi != null && selectedEndPoi != null) { Intent intent = new Intent(requireContext(), RoutePlanActivity.class); intent.putExtra(RoutePlanActivity.EXTRA_SOURCE, RoutePlanActivity.SOURCE_FROM_MAP_DIRECT); intent.putExtra("start_lat", selectedStartPoi.getLatLonPoint().getLatitude()); intent.putExtra("start_lng", selectedStartPoi.getLatLonPoint().getLongitude()); intent.putExtra("target_lat", selectedEndPoi.getLatLonPoint().getLatitude()); intent.putExtra("target_lng", selectedEndPoi.getLatLonPoint().getLongitude()); intent.putExtra("target_title", selectedEndPoi.getTitle()); startActivity(intent); } else { Toast.makeText(requireContext(), "请完成起点和终点的选择", Toast.LENGTH_SHORT).show(); } }); } private void performSearch() { String startKeyword = binding.mapInput1.getText().toString().trim(); String endKeyword = binding.mapInput2.getText().toString().trim(); if (startKeyword.isEmpty()) { Toast.makeText(requireContext(), "请输入起点", Toast.LENGTH_SHORT).show(); return; } if (endKeyword.isEmpty()) { Toast.makeText(requireContext(), "请输入终点", Toast.LENGTH_SHORT).show(); return; } if (startKeyword.equals(lastStartKeyword) && endKeyword.equals(lastEndKeyword) && selectedStartPoi != null && selectedEndPoi != null) { binding.btnGoTo.performClick(); return; } binding.containerResultList.setVisibility(View.VISIBLE); binding.buttonGroup.setVisibility(View.VISIBLE); ConstraintSet constraintSet = new ConstraintSet(); constraintSet.clone(binding.getRoot()); constraintSet.connect(R.id.map_view, ConstraintSet.BOTTOM, R.id.container_result_list, ConstraintSet.TOP, 0); constraintSet.applyTo(binding.getRoot()); userHasInteracted = true; View currentFocus = requireActivity().getCurrentFocus(); if (currentFocus != null) { currentFocus.clearFocus(); InputMethodManager imm = (InputMethodManager) requireContext().getSystemService(Context.INPUT_METHOD_SERVICE); imm.hideSoftInputFromWindow(currentFocus.getWindowToken(), 0); } if (!startKeyword.equals(lastStartKeyword)) { lastStartKeyword = startKeyword; lastEndKeyword = endKeyword; showStartpointSelection(startKeyword); } else if (!endKeyword.equals(lastEndKeyword)) { lastEndKeyword = endKeyword; showEndpointSelection(endKeyword); } else if (selectedStartPoi == null) { showStartpointSelection(startKeyword); } else { showEndpointSelection(endKeyword); } } private void showStartpointSelection(String keyword) { selectionStage = 1; binding.btnSwitchTarget.setText("前往选择终点"); binding.btnGoTo.setEnabled(false); binding.emptyView.setText("🔍 搜索中..."); binding.emptyView.setVisibility(View.VISIBLE); binding.resultList.setVisibility(View.GONE); doSearch(keyword); } private void showEndpointSelection(String keyword) { selectionStage = 2; binding.btnSwitchTarget.setText("回到选择起点"); binding.btnGoTo.setEnabled(false); binding.emptyView.setText("🔍 搜索中..."); binding.emptyView.setVisibility(View.VISIBLE); binding.resultList.setVisibility(View.GONE); doSearch(keyword); } private void doSearch(String keyword) { if (keyword.isEmpty()) return; CityManager.ParsedQuery parsed = CityManager.parse(keyword); boolean isTargetCitySpecified = !parsed.targetCity.isEmpty(); // 判断是否为泛词 → 使用 dummy 查询 PoiSearch.Query dummyQuery = new PoiSearch.Query(parsed.keyword, "", currentCity); PoiSearch tempSearch; try { tempSearch = new PoiSearch(requireContext(), dummyQuery); tempSearch.setOnPoiSearchListener(new PoiSearch.OnPoiSearchListener() { @Override public void onPoiSearched(PoiResult result, int rCode) { boolean isGeneric = (rCode == 1000 && result != null && result.getPois() != null) ? PoiIntelligenceUtils.isGenericCategory(result.getPois()) : false; if (isGeneric) { // 泛词：附近优先 PoiSearch.Query query = new PoiSearch.Query(parsed.keyword, "", currentCity); query.setPageSize(20); try { poiSearch = new PoiSearch(requireContext(), query); poiSearch.setOnPoiSearchListener(MapFragment.this); if (isLocationReady) { LatLonPoint center = new LatLonPoint(myCurrentLat, myCurrentLng); poiSearch.setBound(new PoiSearch.SearchBound(center, 3000)); } poiSearch.searchPOIAsyn(); } catch (com.amap.api.services.core.AMapException e) { handleSearchError(-1); e.printStackTrace(); } } else { // 非泛词：按规则走 if (isTargetCitySpecified) { searchInSingleCity(parsed.keyword, parsed.targetCity); } else { searchInCurrentThenNationwide(parsed.keyword, currentCity); } } } @Override public void onPoiItemSearched(PoiItem item, int rCode) {} }); tempSearch.searchPOIAsyn(); } catch (com.amap.api.services.core.AMapException e) { e.printStackTrace(); handleSearchError(-1); } } private void searchInSingleCity(String keyword, String city) { PoiSearch.Query query = new PoiSearch.Query(keyword, "", city); query.setPageSize(50); query.setPageNum(0); try { poiSearch = new PoiSearch(requireContext(), query); poiSearch.setOnPoiSearchListener(this); poiSearch.searchPOIAsyn(); } catch (Exception e) { handleSearchError(-1); } } private void searchInCurrentThenNationwide(String keyword, String currentCity) { binding.emptyView.setText("🔍 正在整合本地与全国结果..."); List<PoiItem> allResults = new ArrayList<>(); // 第一阶段：本地城市搜索 PoiSearch.Query localQuery = new PoiSearch.Query(keyword, "", currentCity); PoiSearch localSearch; try { localSearch = new PoiSearch(requireContext(), localQuery); localSearch.setOnPoiSearchListener(new PoiSearch.OnPoiSearchListener() { @Override public void onPoiSearched(PoiResult result, int rCode) { if (rCode == 1000 && result != null && result.getPois() != null) { allResults.addAll(result.getPois()); } // 第二阶段：全国其他城市搜索 PoiSearch.Query nationalQuery = new PoiSearch.Query(keyword, "", ""); PoiSearch nationalSearch; try { nationalSearch = new PoiSearch(requireContext(), nationalQuery); nationalSearch.setOnPoiSearchListener(new PoiSearch.OnPoiSearchListener() { @Override public void onPoiSearched(PoiResult res, int code) { if (code == 1000 && res != null && res.getPois() != null) { List<PoiItem> filtered = res.getPois().stream() .filter(poi -> !currentCity.contains(poi.getCityName())) .collect(Collectors.toList()); allResults.addAll(filtered); } // 去重并更新 UI List<PoiItem> unique = new ArrayList<>(new HashSet<>(allResults)); updateResultList(unique); } @Override public void onPoiItemSearched(PoiItem item, int rCode) {} }); nationalSearch.searchPOIAsyn(); } catch (com.amap.api.services.core.AMapException e) { e.printStackTrace(); // 即使全国搜索失败，也显示已有结果 updateResultList(allResults); } } @Override public void onPoiItemSearched(PoiItem item, int rCode) {} }); localSearch.searchPOIAsyn(); } catch (com.amap.api.services.core.AMapException e) { e.printStackTrace(); // 如果本地搜索都失败，尝试降级为全国搜索 searchInSingleCity(keyword, ""); // 空城市表示全国 } } private void onPoiItemSelected(PoiItem item) { LatLng latLng = new LatLng(item.getLatLonPoint().getLatitude(), item.getLatLonPoint().getLongitude()); if (selectionStage == 1) { if (startMarker != null) startMarker.remove(); startMarker = aMap.addMarker(new MarkerOptions() .position(latLng) .title("起点：" + item.getTitle()) .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_GREEN))); selectedStartPoi = item; aMap.animateCamera(CameraUpdateFactory.newLatLngZoom(latLng, 14f)); } else if (selectionStage == 2) { if (endMarker != null) endMarker.remove(); endMarker = aMap.addMarker(new MarkerOptions() .position(latLng) .title("终点：" + item.getTitle()) .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_RED))); selectedEndPoi = item; aMap.animateCamera(CameraUpdateFactory.newLatLngZoom(latLng, 14f)); } userHasInteracted = true; updateGoToButtonState(); } private void updateGoToButtonState() { binding.btnGoTo.setEnabled(selectedStartPoi != null && selectedEndPoi != null); } @Override public void onPoiSearched(PoiResult result, int rCode) { // 这个回调不再使用，由内部双阶段接管 } @Override public void onPoiItemSearched(PoiItem item, int rCode) {} @Override public void onRegeocodeSearched(RegeocodeResult result, int rCode) { if (rCode == 1000 && result != null && result.getRegeocodeAddress() != null) { String city = result.getRegeocodeAddress().getCity(); currentCity = (city != null && !city.isEmpty()) ? city : result.getRegeocodeAddress().getProvince(); if (activeSuggestHelper != null) { activeSuggestHelper.setCurrentCity(currentCity); } } } @Override public void onGeocodeSearched(com.amap.api.services.geocoder.GeocodeResult geocodeResult, int i) {} @Override public void onResume() { super.onResume(); mapView.onResume(); if (!userHasInteracted) { enableMyLocationLayer(); } } @Override public void onPause() { super.onPause(); mapView.onPause(); } @Override public void onDestroyView() { super.onDestroyView(); mapView.onDestroy(); binding = null; } @Override public void onSaveInstanceState(@NonNull Bundle outState) { super.onSaveInstanceState(outState); mapView.onSaveInstanceState(outState); } private void setupSearchSuggestion() { RealTimePoiSuggestHelper suggestHelper = new RealTimePoiSuggestHelper(requireContext()); suggestHelper.setCurrentCity(currentCity); activeSuggestHelper = suggestHelper; suggestHelper.setCallback(suggestions -> { if (suggestions.length > 0) { ArrayAdapter<String> adapter = new ArrayAdapter<>( requireContext(), android.R.layout.simple_dropdown_item_1line, suggestions ); new Handler(Looper.getMainLooper()).post(() -> { binding.mapInput1.setAdapter(adapter); binding.mapInput2.setAdapter(adapter); if (requireActivity().getCurrentFocus() == binding.mapInput1) { binding.mapInput1.showDropDown(); } else if (requireActivity().getCurrentFocus() == binding.mapInput2) { binding.mapInput2.showDropDown(); } }); } }); if (isLocationReady) { suggestHelper.setLocationBias(myCurrentLat, myCurrentLng); } Handler handler = new Handler(Looper.getMainLooper()); Runnable[] pending1 = {null}, pending2 = {null}; binding.mapInput1.addTextChangedListener(new SimpleTextWatcher(s -> { if (pending1[0] != null) handler.removeCallbacks(pending1[0]); if (s.length() == 0) { binding.mapInput1.setAdapter(null); return; } pending1[0] = () -> { CityManager.ParsedQuery parsed = CityManager.parse(s.toString()); if (!parsed.targetCity.isEmpty()) { suggestHelper.requestSuggestionsForCity(parsed.keyword, parsed.targetCity); } else { suggestHelper.requestSuggestions(parsed.keyword); } }; handler.postDelayed(pending1[0], 300); })); binding.mapInput2.addTextChangedListener(new SimpleTextWatcher(s -> { if (pending2[0] != null) handler.removeCallbacks(pending2[0]); if (s.length() == 0) { binding.mapInput2.setAdapter(null); return; } pending2[0] = () -> { CityManager.ParsedQuery parsed = CityManager.parse(s.toString()); if (!parsed.targetCity.isEmpty()) { suggestHelper.requestSuggestionsForCity(parsed.keyword, parsed.targetCity); } else { suggestHelper.requestSuggestions(parsed.keyword); } }; handler.postDelayed(pending2[0], 300); })); binding.mapInput1.setOnEditorActionListener((v, actionId, event) -> { if ((actionId & EditorInfo.IME_MASK_ACTION) == EditorInfo.IME_ACTION_SEARCH) { performSearch(); return true; } return false; }); binding.mapInput2.setOnEditorActionListener((v, actionId, event) -> { if ((actionId & EditorInfo.IME_MASK_ACTION) == EditorInfo.IME_ACTION_SEARCH) { performSearch(); return true; } return false; }); } private void handleSearchError(int rCode) { String msg; switch (rCode) { case 12: msg = "API Key 错误"; break; case 27: msg = "网络连接失败"; break; case 30: msg = "SHA1 或包名错误"; break; case 33: msg = "请求频繁"; break; default: msg = "搜索失败: " + rCode; break; } Toast.makeText(requireContext(), msg, Toast.LENGTH_SHORT).show(); } private void updateResultList(List<PoiItem> list) { poiList.clear(); poiList.addAll(list); adapter.notifyDataSetChanged(); binding.resultList.scrollToPosition(0); binding.emptyView.setVisibility(View.GONE); binding.resultList.setVisibility(View.VISIBLE); if (!list.isEmpty()) { adapter.setSelected(0); onPoiItemSelected(list.get(0)); } } private LatLng toLatLng(LatLonPoint point) { if (point == null) return null; return new LatLng(point.getLatitude(), point.getLongitude()); } private void enableMyLocationLayer() { if (aMap == null) return; if (ContextCompat.checkSelfPermission(requireContext(), Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) { MyLocationStyle myLocationStyle = new MyLocationStyle(); myLocationStyle.myLocationType(MyLocationStyle.LOCATION_TYPE_LOCATION_ROTATE_NO_CENTER); aMap.setMyLocationStyle(myLocationStyle); aMap.setMyLocationEnabled(true); AMap.OnMyLocationChangeListener listener = location -> { if (location != null && !userHasInteracted) { LatLng curLatlng = new LatLng(location.getLatitude(), location.getLongitude()); if (activeSuggestHelper != null) { activeSuggestHelper.setLocationBias(location.getLatitude(), location.getLongitude()); } myCurrentLat = location.getLatitude(); myCurrentLng = location.getLongitude(); isLocationReady = true; aMap.animateCamera(CameraUpdateFactory.newLatLngZoom(curLatlng, 16f)); userHasInteracted = true; LatLonPoint point = new LatLonPoint(myCurrentLat, myCurrentLng); RegeocodeQuery query = new RegeocodeQuery(point, 200, GeocodeSearch.AMAP); try { geocodeSearch.getFromLocationAsyn(query); } catch (Exception e) { e.printStackTrace(); Toast.makeText(requireContext(), "逆地理编码请求失败", Toast.LENGTH_SHORT).show(); } aMap.setOnMyLocationChangeListener(null); } }; aMap.setOnMyLocationChangeListener(listener); } else { ActivityCompat.requestPermissions(requireActivity(), new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, LOCATION_PERMISSION_REQUEST_CODE); 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