不对，我现在感觉到很乱。让我们从最初的代码开始。MapFragment代码如下：package
com.example
.bus
.ui
.map;
import
android.Manifest;
import
android.content
.pm
.PackageManager;
import
android.os
.Bundle;
import
android.view
.LayoutInflater;
import
android.view
.View;
import
android.view
.ViewGroup;
import
android.widget
.TextView;
import
android.widget
.Toast;
import
androidx
.annotation
.NonNull;
import
androidx
.core
.content
.Context
Compat;
import
androidx
.fragment
.app
.Fragment;
import
androidx
.lifecycle
.ViewModelProvider;
import
com.amap
.api
.maps
.MapView;
import
com.amap
.api
.maps
.AMap;
import
com.amap
.api
.maps
.model
.LatLng;
//import
com.example
.bus
.R;
//import
com.example
.bus
.databinding
.FragmentMapBinding;
import
com.amap
.api
.maps
.CameraUpdateFactory;
import
com.amap
.api
.maps
.UiSettings;
import
com.example
.bus
.R;
import
com.example
.bus
.databinding
.FragmentMapBinding;
// MapView 已在 XML 中声明，无需额外 import（会自动识别）
public class MapFragment extends Fragment {
private FragmentMapBinding binding;
private MapView mapView;
// 高德地图视图
private AMap aMap;
// 地图控制器
private boolean isFirstLocationSet = false;
// 防止反复跳转
@Override
public View onCreateView(@NonNull LayoutInflater inflater,
ViewGroup container, Bundle savedInstanceState) {
// 初始化 ViewModel 和 ViewBinding
binding = FragmentMapBinding
.inflate(inflater, container, false);
View root = binding
.getRoot();
//绑定 MapView
mapView = root
.findViewById(R
.id
.map_view);
mapView
.onCreate(savedInstanceState);
// 必须调用生命周期方法
// 初始化地图
initMap();
return root;
}
/**
* 初始化地图
*/
private void initMap() {
if (aMap == null) {
aMap = mapView
.getMap();
UiSettings uiSettings = aMap
.getUiSettings();
uiSettings
.setZoomControlsEnabled(true);
// 显示缩放按钮
uiSettings
.set
CompassEnabled(true);
// 显示指南针
uiSettings
.setMyLocationButtonEnabled(false);
// 我们自己控制定位行为
}
}
@Override
public void on
Resume() {
super
.on
Resume();
//每次恢复可见时都检查权限状态
mapView
.on
Resume();
// ✅ 直接开启定位图层（信任 MainActivity 的判断）
if (aMap != null) {
aMap
.setMyLocationEnabled(true);
// 只第一次进入时移动相机
if (!isFirstLocationSet) {
LatLng defaultLoc = new LatLng(39
.909186, 116
.397411);
aMap
.moveCamera(CameraUpdateFactory
.newLatLngZoom(defaultLoc, 12f));
isFirstLocationSet = true;
}
}
}
@Override
public void onPause() {
super
.onPause();
mapView
.onPause();
}
@Override
public void onDestroyView() {
super
.onDestroyView();
if (mapView != null) {
mapView
.onDestroy();
}
binding = null;
}
@Override
public void onSaveInstanceState(@NonNull Bundle outState) {
super
.onSaveInstanceState(outState);
mapView
.onSaveInstanceState(outState);
}
}
fragment_map
.xml代码如下：<?xml version="1
.0" encoding="utf-8"?>
<
androidx
.constraintlayout
.widget
.ConstraintLayout
xmlns
:android="
http://schemas.android.com/
apk/
res/
android"
xmlns
:app="
http://schemas.android.com/
apk/
res-auto"
xmlns
:tools="
http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools
:context="
.ui
.map
.MapFragment"
android:fitsSystemWindows="true"
android:background="@color/surface_background">
<
androidx
.constraintlayout
.widget
.Guideline
android:id="@+id/guideline_top_offset"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app
:layout_constraintGuide_percent="0
.015" />
<!-- 🔹 起点输入框 -->
<EditText
android:id="@+id/map_input1"
android:layout_width="0dp"
android:layout_height="48dp"
android:hint="请输入起点"
android:textColorHint="#777777"
android:textColor="@color/black"
android:background="@drawable/rounded_edittext"
android:padding="12dp"
android:layout_marginStart="16dp"
android:layout_marginEnd="8dp"
android:layout_marginTop="32dp"
app
:layout_constraintStart_toStartOf="parent"
app
:layout_constraintEnd_toStartOf="@id/guideline_search"
app
:layout_constraintTop_toTopOf="@id/guideline_top_offset" />
<!-- 🔹 终点输入框 -->
<EditText
android:id="@+id/map_input2"
android:layout_width="0dp"
android:layout_height="48dp"
android:hint="请输入终点"
android:textColorHint="#777777"
android:textColor="@color/black"
android:background="@drawable/rounded_edittext"
android:padding="12dp"
android:layout_marginStart="16dp"
android:layout_marginEnd="8dp"
app
:layout_constraintStart_toStartOf="parent"
app
:layout_constraintEnd_toStartOf="@id/guideline_search"
app
:layout_constraintTop_toBottomOf="@id/map_input1" />
<!-- ✅ 分割线：75% 处（原样保留） -->
<
androidx
.constraintlayout
.widget
.Guideline
android:id="@+id/guideline_search"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
app
:layout_constraintGuide_percent="0
.75" />
<!-- 🔍 搜索按钮：纵向拉高，覆盖两个输入框 -->
<Button
android:id="@+id/map_search"
android:layout_width="0dp"
android:layout_height="0dp"
android:text="搜索"
android:textSize="16sp"
android:gravity="center"
app
:layout_constraintStart_toStartOf="@id/guideline_search"
app
:layout_constraintEnd_toEndOf="parent"
app
:layout_constraintTop_toTopOf="@id/map_input1"
app
:layout_constraintBottom_toBottomOf="@id/map_input2"
android:layout_marginEnd="16dp" />
<!-- 🗺️ 地图视图：从终点输入框下方开始，延伸到底部 -->
<
com.amap
.api
.maps
.MapView
android:id="@+id/map_view"
android:text="Bus-1
.0"
android:textColor="#777777"
android:layout_width="0dp"
android:layout_height="0dp"
app
:layout_constraintStart_toStartOf="parent"
app
:layout_constraintEnd_toEndOf="parent"
app
:layout_constraintTop_toBottomOf="@id/map_input2"
app
:layout_constraintBottom_toBottomOf="parent"
android:layout_marginTop="4dp"
android:layout_marginBottom="0dp"/>
</
androidx
.constraintlayout
.widget
.ConstraintLayout>
HomeFragment代码如下：package
com.example
.bus
.ui
.home;
import
android.os
.Bundle;
import
android.view
.LayoutInflater;
import
android.view
.View;
import
android.view
.ViewGroup;
import
android.widget
.TextView;
import
androidx
.annotation
.NonNull;
import
androidx
.fragment
.app
.Fragment;
import
androidx
.lifecycle
.ViewModelProvider;
import
com.example
.bus
.databinding
.FragmentHomeBinding;
public class HomeFragment extends Fragment {
private FragmentHomeBinding binding;
public View onCreateView(@NonNull LayoutInflater inflater,
ViewGroup container, Bundle savedInstanceState) {
com.example
.bus
.ui
.home
.HomeViewModel homeViewModel =
new ViewModelProvider(this)
.get(
com.example
.bus
.ui
.home
.HomeViewModel
.class);
binding = FragmentHomeBinding
.inflate(inflater, container, false);
View root = binding
.getRoot();
final TextView textView = binding
.textHome;
homeViewModel
.getText()
.observe(getViewLifecycleOwner(), textView
::setText);
return root;
}
@Override
public void onDestroyView() {
super
.onDestroyView();
binding = null;
}
}
fragment_home
.xml代码如下：<?xml version="1
.0" encoding="utf-8"?>
<
androidx
.constraintlayout
.widget
.ConstraintLayout
xmlns
:android="
http://schemas.android.com/
apk/
res/
android"
xmlns
:app="
http://schemas.android.com/
apk/
res-auto"
xmlns
:tools="
http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools
:context="
.ui
.home
.HomeFragment"
android:fitsSystemWindows="true"
android:background="@color/surface_background">
<!-- 🔍 输入框 -->
<EditText
android:id="@+id/home_input"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:hint="请输入需要查询的公交线路或站点"
android:textColorHint="#777777"
android:textColor="@color/black"
android:background="@drawable/rounded_edittext"
android:minHeight="48dp"
android:textSize="16sp"
android:padding="12dp"
app
:layout_constraintTop_toTopOf="parent"
app
:layout_constraintStart_toStartOf="parent"
app
:layout_constraintEnd_toStartOf="@id/home_search"
app
:layout_constraintHorizontal_chainStyle="packed"
android:layout_marginStart="16dp"
android:layout_marginEnd="8dp"
android:layout_marginTop="88dp" />
<!-- 🔎 搜索按钮 -->
<Button
android:id="@+id/home_search"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="搜索"
app
:layout_constraintTop_toTopOf="@id/home_input"
app
:layout_constraintBottom_toBottomOf="@id/home_input"
app
:layout_constraintStart_toEndOf="@id/home_input"
app
:layout_constraintEnd_toEndOf="parent"
android:layout_marginEnd="16dp" />
<!-- 🚌 图片：居中偏上 -->
<ImageView
android:id="@+id/image_bus"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:scaleType="fitCenter"
android:src="@drawable/bus"
app
:layout_constraintTop_toBottomOf="@id/home_input"
app
:layout_constraintBottom_toTopOf="@+id/text_home"
app
:layout_constraintStart_toStartOf="parent"
app
:layout_constraintEnd_toEndOf="parent"
android:layout_marginTop="144dp"
android:layout_marginBottom="144dp"/>
<!-- ℹ️ 底部说明文字 -->
<TextView
android:id="@+id/text_home"
android:textColor="#777777"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginEnd="8dp"
android:textAlignment="center"
android:textSize="11sp"
app
:layout_constraintTop_toBottomOf="@id/image_bus"
app
:layout_constraintStart_toStartOf="parent"
app
:layout_constraintEnd_toEndOf="parent"
app
:layout_constraintBottom_toBottomOf="parent" />
</
androidx
.constraintlayout
.widget
.ConstraintLayout>
build
.gradle
.kts代码如下：plugins {
alias(libs
.plugins
.android.application)
}
android {
namespace = "
com.example
.bus"
compileSdk = 36
defaultConfig {
applicationId = "
com.example
.bus"
minSdk = 24
targetSdk = 36
versionCode = 1
versionName = "1
.0"
testInstrumentationRunner = "
androidx
.test
.runner
.AndroidJUnitRunner"
}
buildTypes {
release {
isMinifyEnabled = false
proguardFiles(
getDefaultProguardFile("proguard-
android-optimize
.txt"),
"proguard-rules
.pro"
)
}
}
compileOptions {
source
Compatibility = JavaVersion
.VERSION_11
target
Compatibility = JavaVersion
.VERSION_11
}
buildFeatu
res {
viewBinding = true
}
}
dependencies {
implementation(files("libs/AMap3DMap_10
.1
.500_AMapNavi_10
.1
.500_AMapSearch_9
.7
.4_AMapLocation_6
.5
.0_20250814
.aar"))
implementation(libs
.app
compat)
implementation(libs
.material)
implementation(libs
.constraintlayout)
implementation(libs
.lifecycle
.livedata
.ktx)
implementation(libs
.lifecycle
.viewmodel
.ktx)
implementation(libs
.navigation
.fragment)
implementation(libs
.navigation
.ui)
implementation(libs
.play
.services
.maps)
implementation(libs
.recyclerview)
testImplementation(libs
.junit)
androidTestImplementation(libs
.ext
.junit)
androidTestImplementation(libs
.esp
resso
.core)
}
AndroidManifest
.xml代码如下：<?xml version="1
.0" encoding="utf-8"?>
<manifest xmlns
:android="
http://schemas.android.com/
apk/
res/
android"
xmlns
:tools="
http://schemas.android.com/tools"
package="
com.example
.bus">
<!-- 获取精确位置（GPS + 网络） -->
<uses-permission
android:name="
android.permission
.ACCESS_FINE_LOCATION" />
<!-- 获取粗略位置 -->
<uses-permission
android:name="
android.permission
.ACCESS_COARSE_LOCATION" />
<!-- 请求后台定位权限 -->
<uses-permission
android:name="
android.permission
.ACCESS_BACKGROUND_LOCATION" />
<!-- 访问网络状态 -->
<uses-permission
android:name="
android.permission
.ACCESS_NETWORK_STATE" />
<!-- 读取设备状态（用于生成设备标识） -->
<uses-permission
android:name="
android.permission
.READ_PHONE_STATE" />
<!-- 使用 GPS -->
<uses-permission
android:name="
android.permission
.ACCESS_WIFI_STATE" />
<application
android:name="
.MyApplication"
android:allowBackup="true"
android:dataExtractionRules="@xml/data_extraction_rules"
android:fullBackupContent="@xml/backup_rules"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/Theme
.Bus">
<!-- 高德地图 API Key -->
<meta-data
android:name="
com.amap
.api
.v2
.apikey"
android:value="a487b8aa9be4ecdcb101a04a9eecff8a" />
<activity
android:name="
.AboutActivity"
android:exported="false"
android:parentActivityName="
.MainActivity" />
<activity
android:name="
.SurveyActivity"
android:label="用户调研"
android:parentActivityName="
.MainActivity">
<meta-data
android:name="
android.support
.PARENT_ACTIVITY"
android:value="
.MainActivity" />
</activity>
<activity
android:name="
.MainActivity"
android:exported="true"
android:label="@string/app_name">
<intent-filter>
<action
android:name="
android.intent
.action
.MAIN" />
<category
android:name="
android.intent
.category
.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
就是说，在现在的这个框架上不变动，仅添加新的内容，让home_fragment界面的搜索框和map_fragment界面的搜索框能够跳转的新的界面显示信息。当然，我的想法是home_fragment点击搜索后先跳转到界面1，显示搜索的信息，包含公交线路、站点等，然后做一个按钮显示“到这去”，点击按钮后就跳转到界面2显示从“我的位置”到达“搜索位置”的公交方案。map_fragment点击搜索后直接跳转到界面2显示从起点到终点的公交方案。当然，在点击搜索的瞬间，跟进入map界面一样，需要请求位置信息
本文介绍如何在软件中正确配置Schema和DTD的路径，通过简单的步骤指导用户完成设置，确保文档验证等功能正常运行。
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