android日夜模式setBackgroundResource 不生效

android切换日夜模式后,需要调用setBackgroundResource 方法更换背景色

有时调用该方法发现切换背景无效,还是前一个模式的背景色。

方案:

使用setBackground方法

经过修改后,这里没问题了。目前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.view.View; 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 com.amap.api.services.help.Inputtips; import com.amap.api.services.help.Tip; import android.text.Editable; import android.text.TextWatcher; import android.widget.ArrayAdapter; import java.util.ArrayList; import java.util.List; // 新增导入 import android.view.inputmethod.EditorInfo; 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 Inputtips inputTips; private GeocodeSearch geocodeSearch; // 当前城市 private String currentCity = "全国"; // 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; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_search_result); if (getSupportActionBar() != null) { getSupportActionBar().setDisplayHomeAsUpEnabled(true); getSupportActionBar().setTitle("搜索地点"); } initViews(); setupMap(savedInstanceState); setupSearchSuggestion(); try { geocodeSearch = new GeocodeSearch(this); geocodeSearch.setOnGeocodeSearchListener(this); } catch (Exception e) { e.printStackTrace(); } // ✅ 只缓存 keyword,不再尝试提前搜索 pendingKeyword = getIntent().getStringExtra("keyword"); // 删除以下三行:它们永远不会生效 // if (isLocationReady && pendingKeyword != null) { // runOnUiThread(() -> performSearchWithKeyword(pendingKeyword)); // } } 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); aMap.setOnMapClickListener(latLng -> { onCustomLocationSelected(latLng); }); // 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; // ✅ 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(); } else { Toast.makeText(this, "定位权限被拒绝,部分功能受限", Toast.LENGTH_LONG).show(); currentCity = "全国"; } } } private void setupSearchSuggestion() { try { inputTips = new Inputtips(this, new Inputtips.InputtipsListener() { @Override public void onGetInputtips(List<Tip> tipList, int rCode) { if (rCode == 1000 && tipList != null && !tipList.isEmpty()) { String[] arr = new String[tipList.size()]; for (int i = 0; i < tipList.size(); i++) { arr[i] = tipList.get(i).getName(); } ArrayAdapter<String> adapter = new ArrayAdapter<>( SearchResultActivity.this, android.R.layout.simple_dropdown_item_1line, arr ); searchInput.setAdapter(adapter); } else { searchInput.setAdapter(null); handleSearchError(rCode); } } }); } catch (Exception e) { e.printStackTrace(); } 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] = () -> { new Handler(Looper.getMainLooper()).post(() -> { try { inputTips.requestInputtips(s.toString(), currentCity); } catch (Exception e) { e.printStackTrace(); } }); }; handler.postDelayed(pendingRunnable[0], 600); } @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); PoiSearch.Query query = new PoiSearch.Query(keyword, "", currentCity); 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(); emptyView.setText("⚠️ 未找到相关地点"); } } private void handleSearchError(int rCode) { String msg; switch (rCode) { case 12: msg = "API Key 错误"; break; case 27: msg = "网络失败"; break; case 30: msg = "SHA1/包名错误"; break; case 33: msg = "请求频繁"; break; default: msg = "错误码=" + rCode; break; } Toast.makeText(this, msg, Toast.LENGTH_SHORT).show(); } 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); } private void onCustomLocationSelected(LatLng latLng) { if (selectedMarker != null) { selectedMarker.remove(); } selectedMarker = aMap.addMarker(new MarkerOptions() .position(latLng) .title("终点:自定义位置") .icon(com.amap.api.maps.model.BitmapDescriptorFactory.defaultMarker( com.amap.api.maps.model.BitmapDescriptorFactory.HUE_RED))); goToBtn.setEnabled(true); } @Override public void onPoiSearched(PoiResult result, int rCode) { if (rCode == 1000 && result != null && result.getPois() != null && !result.getPois().isEmpty()) { List<PoiItem> newPoiList = result.getPois(); poiList.clear(); poiList.addAll(newPoiList); adapter.notifyDataSetChanged(); resultListView.scrollToPosition(0); resultListView.setVisibility(View.VISIBLE); emptyView.setVisibility(View.GONE); onPoiItemSelected(poiList.get(0)); } else { emptyView.setText("⚠️ 未找到相关地点"); emptyView.setVisibility(View.VISIBLE); resultListView.setVisibility(View.GONE); } } @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(); } else { currentCity = "全国"; } } @Override public void onGeocodeSearched(com.amap.api.services.geocoder.GeocodeResult geocodeResult, int i) { // 忽略 } @Override protected void onResume() { super.onResume(); mapView.onResume(); } @Override protected void onPause() { super.onPause(); mapView.onPause(); } @Override protected void onDestroy() { super.onDestroy(); mapView.onDestroy(); inputTips = null; geocodeSearch = null; } @Override protected void onSaveInstanceState(@NonNull Bundle outState) { super.onSaveInstanceState(outState); mapView.onSaveInstanceState(outState); } @Override public boolean onSupportNavigateUp() { onBackPressed(); return true; } } 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.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; // 👉 新增导入:用于动态修改约束 import androidx.constraintlayout.widget.ConstraintSet; import androidx.constraintlayout.widget.ConstraintLayout; // 🔺 新增导入:用于设置 Marker 颜色 import com.amap.api.maps.model.BitmapDescriptorFactory; 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.help.Inputtips; import com.amap.api.services.help.Tip; 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.R; import com.example.bus.RoutePlanActivity; import com.example.bus.ResultAdapter; import com.example.bus.databinding.FragmentMapBinding; import java.util.ArrayList; import java.util.List; // ✅ 新增导入 import android.view.inputmethod.EditorInfo; public class MapFragment extends Fragment implements PoiSearch.OnPoiSearchListener, GeocodeSearch.OnGeocodeSearchListener { private FragmentMapBinding binding; private MapView mapView; private AMap aMap; private Inputtips inputTips; // 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 = "全国"; 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; @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 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); // 动态压缩地图区域 ConstraintSet constraintSet = new ConstraintSet(); constraintSet.clone((ConstraintLayout) binding.getRoot()); constraintSet.connect( R.id.map_view, ConstraintSet.BOTTOM, R.id.container_result_list, ConstraintSet.TOP, 0 ); constraintSet.applyTo((ConstraintLayout) 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); } } // ✅ 修改:显示“搜索起点中...” 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); } // ✅ 修改:显示“搜索终点中...” 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; PoiSearch.Query query = new PoiSearch.Query(keyword, "", currentCity); 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(); } } 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> newPoiList = result.getPois(); poiList.clear(); poiList.addAll(newPoiList); if (adapter == null) { adapter = new ResultAdapter(poiList, this::onPoiItemSelected); binding.resultList.setLayoutManager(new LinearLayoutManager(requireContext())); binding.resultList.setAdapter(adapter); } else { adapter.notifyDataSetChanged(); binding.resultList.scrollToPosition(0); } binding.emptyView.setVisibility(View.GONE); binding.resultList.setVisibility(View.VISIBLE); // 自动选中第一个 onPoiItemSelected(poiList.get(0)); } else { // ✅ 根据当前阶段显示不同错误信息 if (selectionStage == 1) { binding.emptyView.setText("⚠️ 未找到相关起点"); } else if (selectionStage == 2) { binding.emptyView.setText("⚠️ 未找到相关终点"); } binding.emptyView.setVisibility(View.VISIBLE); binding.resultList.setVisibility(View.GONE); } } @Override public void onPoiItemSearched(PoiItem item, int rCode) { // 接口必须实现 } 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)) ); } private void setupSearchSuggestion() { try { inputTips = new Inputtips(requireContext(), new Inputtips.InputtipsListener() { @Override public void onGetInputtips(List<Tip> tipList, int rCode) { if (rCode == 1000 && tipList != null && !tipList.isEmpty()) { String[] arr = new String[tipList.size()]; for (int i = 0; i < tipList.size(); i++) { arr[i] = tipList.get(i).getName(); } ArrayAdapter<String> adapter = new ArrayAdapter<>( requireContext(), android.R.layout.simple_dropdown_item_1line, arr ); new Handler(Looper.getMainLooper()).post(() -> { if (requireActivity().getCurrentFocus() == binding.mapInput1) { binding.mapInput1.setAdapter(adapter); } else if (requireActivity().getCurrentFocus() == binding.mapInput2) { binding.mapInput2.setAdapter(adapter); } }); } else { new Handler(Looper.getMainLooper()).post(() -> { binding.mapInput1.setAdapter(null); binding.mapInput2.setAdapter(null); }); handleSearchError(rCode); } } }); } catch (Exception e) { e.printStackTrace(); Toast.makeText(requireContext(), "智能提示初始化失败", Toast.LENGTH_SHORT).show(); } 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); } else { pending1[0] = () -> { new Handler(Looper.getMainLooper()).post(() -> { try { inputTips.requestInputtips(s.toString(), currentCity); } catch (Exception e) { e.printStackTrace(); } }); }; handler.postDelayed(pending1[0], 600); } })); binding.mapInput2.addTextChangedListener(new SimpleTextWatcher(s -> { if (pending2[0] != null) handler.removeCallbacks(pending2[0]); if (s.length() == 0) { binding.mapInput2.setAdapter(null); } else { pending2[0] = () -> { new Handler(Looper.getMainLooper()).post(() -> { try { inputTips.requestInputtips(s.toString(), currentCity); } catch (Exception e) { e.printStackTrace(); } }); }; handler.postDelayed(pending2[0], 600); } })); // ✅ 新增:监听 mapInput1 回车 binding.mapInput1.setOnEditorActionListener((v, actionId, event) -> { if ((actionId & EditorInfo.IME_MASK_ACTION) == EditorInfo.IME_ACTION_SEARCH) { performSearch(); return true; } return false; }); // ✅ 新增:监听 mapInput2 回车 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(); } @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(); inputTips = null; geocodeSearch = null; binding = null; } @Override public void onSaveInstanceState(@NonNull Bundle outState) { super.onSaveInstanceState(outState); mapView.onSaveInstanceState(outState); } 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()); aMap.animateCamera(CameraUpdateFactory.newLatLngZoom(curLatlng, 16f)); userHasInteracted = true; LatLonPoint point = new LatLonPoint(location.getLatitude(), location.getLongitude()); 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()); aMap.animateCamera(CameraUpdateFactory.newLatLngZoom(curLatlng, 16f)); userHasInteracted = true; LatLonPoint point = new LatLonPoint(location.getLatitude(), location.getLongitude()); 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(); } else { currentCity = "全国"; } } @Override public void onGeocodeSearched(com.amap.api.services.geocoder.GeocodeResult geocodeResult, int i) { // 忽略 } 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); } } } 现在,我需要对顺序进行修改,如果是搜索有很多结果的话,优先展示离自己近的,比如搜索麦当劳。还有一点就是选中item跟没选中做一个颜色上的区分,但我目前的主题是有分深色模式和浅色模式的,所以在这方面可能难度比较大。themes.xml代码如下:<resources xmlns:tools="http://schemas.android.com/tools"> <style name="Theme.Bus" parent="Theme.MaterialComponents.DayNight.DarkActionBar"> <!-- 主色调 --> <item name="colorPrimary">@color/purple_500</item> <item name="colorPrimaryVariant">@color/purple_700</item> <item name="colorOnPrimary">@color/white</item> <!-- 次要色 --> <item name="colorSecondary">@color/teal_200</item> <item name="colorSecondaryVariant">@color/teal_700</item> <item name="colorOnSecondary">@color/white</item> <!-- 状态栏颜色 --> <item name="android:statusBarColor">@color/purple_700</item> <!-- 导航栏颜色 --> <item name="android:navigationBarColor">@color/white</item> <!-- 启用浅色状态栏(让图标和文字变深色) --> <item name="android:windowLightStatusBar">true</item> </style> </resources> themes.xml(night)代码如下:<resources xmlns:tools="http://schemas.android.com/tools"> <!-- Base application theme. --> <style name="Theme.Bus" parent="Theme.MaterialComponents.DayNight.DarkActionBar"> <!-- Primary brand color. --> <item name="colorPrimary">@color/purple_200</item> <item name="colorPrimaryVariant">@color/purple_700</item> <item name="colorOnPrimary">@color/black</item> <!-- Secondary brand color. --> <item name="colorSecondary">@color/teal_200</item> <item name="colorSecondaryVariant">@color/teal_200</item> <item name="colorOnSecondary">@color/black</item> <!-- Status bar color. --> <item name="android:statusBarColor">?attr/colorPrimaryVariant</item> <!-- Customize your theme here. --> </style> </resources>这个主题请你不要修改。当然,我这个项目还有一个问题就是,如果我手机从浅色模式切换深色模式或者从深色模式切换浅色模式好像activity就从新开始了,每次从状态栏回到应用都会很卡顿,这是其它市面上已有的APP都不存在的问题。
最新发布
11-29
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