调用网页百度地图进行路径规划 -云博客

调用网页百度地图进行路径规划

# 前端 2024-05-05 06:55 0 31 来源：云博客

参考链接：https://blog.csdn.net/tianxintiandisheng/article/details/81870710

该Demo里有其他的多余功能，可自行删减。

运行效果图（运行前要开启GPS权限）：点击保存按钮将会把编辑框里的地址保存到数据库

目录结构图：

manifest：以下的权限并非都是必要的

 1 <?xml version="1.0" encoding="utf-8"?> 2 <manifest xmlns:android="http://schemas.android.com/apk/res/android" 3 package="com.mingrisoft.routeplanning5"> 4  5 //获取设备网络状态，禁用后无法获取网络状态 6 <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> 7 //网络权限，当禁用后，无法进行检索等相关业务 8 <uses-permission android:name="android.permission.INTERNET" /> 9 //读取设备硬件信息，统计数据10 <uses-permission android:name="android.permission.READ_PHONE_STATE" />11 //读取系统信息，包含系统版本等信息，用作统计12 <uses-permission android:name="com.android.launcher.permission.READ_SETTINGS" />13 //获取设备的网络状态，鉴权所需网络代理14 <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />15 //允许sd卡写权限，需写入地图数据，禁用后无法显示地图16 <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />17 //允许sd卡读权限，需读取地图数据，禁用后无法显示地图18 <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />19 //获取统计数据20 <uses-permission android:name="android.permission.WRITE_SETTINGS" />21 //鉴权所需该权限获取进程列表22 <uses-permission android:name="android.permission.GET_TASKS" />23 //使用步行AR导航，配置Camera权限24 <uses-permission android:name="android.permission.CAMERA" />25 //网络定位26 <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />27 //GPS定位28 <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />29 <!-- 这个权限用于获取wifi的获取权限，wifi信息会用来进行网络定位-->30 <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />31 32 33 <application34 android:allowBackup="true"35 android:icon="@mipmap/ic_launcher"36 android:label="@string/app_name"37 android:roundIcon="@mipmap/ic_launcher_round"38 android:supportsRtl="true"39 android:theme="@style/AppTheme"40 android:usesCleartextTraffic="true">41 42 <meta-data43 android:name="com.baidu.lbsapi.API_KEY"44 android:value="gEnaDhNCFNRRCKmc7XPM1PttGalSkeKr"/>45 46 <activity android:name=".MainActivity">47 <intent-filter>48 <action android:name="android.intent.action.MAIN" />49 50 <category android:name="android.intent.category.LAUNCHER" />51 </intent-filter>52 </activity>53 <activity android:name=".ToThere"></activity>54 </application>55 56 </manifest>

DBHospital：

 1 package com.mingrisoft.routeplanning5; 2  3 import android.content.Context; 4 import android.database.sqlite.SQLiteDatabase; 5 import android.database.sqlite.SQLiteOpenHelper; 6 import android.support.annotation.Nullable; 7 import android.util.Log; 8  9 public class DBHospital extends SQLiteOpenHelper {10 //用数据库保存目的地，app重启后可从数据库中读取到上次的目的地11 String createHospital = "create table tb_hospital (_id integer primary key autoincrement," +12 "hospital)";13 14 public DBHospital(@Nullable Context context, @Nullable String name, @Nullable SQLiteDatabase.CursorFactory factory, int version) {15 super(context, name, null, version);16  }17 18  @Override19 public void onCreate(SQLiteDatabase db) {20  db.execSQL(createHospital);21  }22 23  @Override24 public void onUpgrade(SQLiteDatabase sqLiteDatabase, int oldVersion, int newVersion) {25 Log.i("社区卫生中心地址表","版本更新" + oldVersion + "-->" + newVersion);26  }27 }

MainActivity：

 1 package com.mingrisoft.routeplanning5; 2  3 import android.content.ContentValues; 4 import android.content.Intent; 5 import android.database.Cursor; 6 import android.database.sqlite.SQLiteDatabase; 7 import android.net.Uri; 8 import android.os.Build; 9 import android.support.v7.app.AppCompatActivity;10 import android.os.Bundle;11 import android.util.Log;12 import android.view.View;13 import android.view.WindowManager;14 import android.webkit.WebChromeClient;15 import android.webkit.WebView;16 import android.webkit.WebViewClient;17 import android.widget.Button;18 import android.widget.EditText;19 import android.widget.Toast;20 21 public class MainActivity extends AppCompatActivity {22 private DBHospital dbHospital;23  Button btn_hc_saveAddress;24  Button toThere;25  EditText et_hc_address;26 27  @Override28 protected void onCreate(Bundle savedInstanceState) {29  super.onCreate(savedInstanceState);30  setContentView(R.layout.activity_main);31 32 btn_hc_saveAddress = findViewById(R.id.btn_hc_saveAddress);33 et_hc_address = findViewById(R.id.ed_hc_address);34 toThere = findViewById(R.id.btn_hc_toThere);35 36 dbHospital = new DBHospital(MainActivity.this,"db_hospital",null,1);37 Cursor cursor = dbHospital.getReadableDatabase().query("tb_hospital",null,null, null, null,null,null);38 39 //读取上次的目的地显示在编辑框中40 if (cursor.getCount() == 0) {41 et_hc_address.setHint("记录为空，可添加社区卫生服务中心地址!");42 } else {43 while (cursor.moveToNext()) {44 et_hc_address.setText(cursor.getString(1));45  }46  }47 48 //更改并保存新的目的地到数据库49 btn_hc_saveAddress.setOnClickListener(new View.OnClickListener() {50  @Override51 public void onClick(View v) {52 if (et_hc_address.getText().toString().equals("")) {53 Toast.makeText(MainActivity.this, "内容为空！", Toast.LENGTH_SHORT).show();54 } else {55 dbHospital.getReadableDatabase().delete("tb_hospital", null, null);56  insertData(dbHospital.getReadableDatabase(), et_hc_address.getText().toString());57 Toast.makeText(MainActivity.this, "名称（地址）更改成功！", Toast.LENGTH_SHORT).show();58  }59  }60  });61 62 //规划路线63 toThere.setOnClickListener(new View.OnClickListener() {64  @Override65 public void onClick(View view) {66 String destination = et_hc_address.getText().toString();67 68 if (destination.equals("")) {69 Toast.makeText(MainActivity.this, "内容为空，无法规划路线！", Toast.LENGTH_SHORT).show();70 } else {71 Bundle bundle = new Bundle();72 bundle.putCharSequence("destination", destination);73 Intent intent = new Intent(MainActivity.this, ToThere.class);74  intent.putExtras(bundle);75  startActivity(intent);76  }77  }78  });79  }80 81 private void insertData(SQLiteDatabase sqLiteDatabase, String hospital) {82 ContentValues contentValues = new ContentValues();83 contentValues.put("hospital", hospital);84 sqLiteDatabase.insert("tb_hospital",null,contentValues);85  }86 }

ToThere：

 1 package com.mingrisoft.routeplanning5; 2  3 import android.Manifest; 4 import android.app.Activity; 5 import android.content.Context; 6 import android.content.Intent; 7 import android.content.pm.PackageManager; 8 import android.location.Location; 9 import android.location.LocationListener; 10 import android.location.LocationManager; 11 import android.net.Uri; 12 import android.os.Build; 13 import android.support.v4.app.ActivityCompat; 14 import android.support.v7.app.AppCompatActivity; 15 import android.os.Bundle; 16 import android.util.Log; 17 import android.view.WindowManager; 18 import android.webkit.WebChromeClient; 19 import android.webkit.WebView; 20 import android.webkit.WebViewClient; 21 import android.widget.Button; 22 import android.widget.EditText; 23 import android.widget.Toast; 24  25 import java.util.List; 26  27 public class ToThere extends Activity { 28  LocationManager locationManager; 29  30  @Override 31 protected void onCreate(Bundle savedInstanceState) { 32  super.onCreate(savedInstanceState); 33  setContentView(R.layout.activity_to_there); 34  35 //获取系统的LocationManager对象 36 LocationManager locationManager = (LocationManager) getSystemService(LOCATION_SERVICE); 37  38 //添加权限检查 39 if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) { 40 // TODO: Consider calling 41 // ActivityCompat#requestPermissions 42 // here to request the missing permissions, and then overriding 43 // public void onRequestPermissionsResult(int requestCode, String[] permissions, 44 // int[] grantResults) 45 // to handle the case where the user grants the permission. See the documentation 46 // for ActivityCompat#requestPermissions for more details. 47 return; 48  } 49 //设置每一秒获取一次location信息 50  locationManager.requestLocationUpdates( 51 LocationManager.GPS_PROVIDER, //GPS定位提供者 52 1000, //更新数据时间为1秒 53 1, //位置间隔为1米 54 //位置监听器 55 new LocationListener() { //GPS定位信息发生改变时触发，用于更新位置信息 56  57  @Override 58 public void onLocationChanged(Location location) { 59 //GPS信息发生改变时，更新位置 60  locationUpdates(location); 61  } 62  63  @Override 64 //位置状态发生改变时触发 65 public void onStatusChanged(String provider, int status, Bundle extras) { 66  } 67  68  @Override 69 //定位提供者启动时触发 70 public void onProviderEnabled(String provider) { 71  } 72  73  @Override 74 //定位提供者关闭时触发 75 public void onProviderDisabled(String provider) { 76  } 77  }); 78 //从GPS获取最新的定位信息 79 //如果只有getLastKnownLocation（）没有requestLocationUpdates很可能location为空，所以最好实现requestLocationUpdates（） 80 Location location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER); 81 locationUpdates(location); //将最新的定位信息传递给创建的locationUpdates()方法中 82  } 83  84 public void locationUpdates(Location location) { //获取指定的查询信息 85 //如果location不为空时 86 if (location != null) { 87 Intent intent = getIntent(); 88 Bundle bundle = intent.getExtras(); 89 String destination = bundle.getString("destination"); 90 String start =location.getLatitude() + "," + location.getLongitude();//起点经纬度 91  92 //设置全屏显示 93  getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, 94  WindowManager.LayoutParams.FLAG_FULLSCREEN); 95 WebView webView = (WebView) findViewById(R.id.wv_hc); //获取布局管理器中添加的WebView组件 96 webView.getSettings().setUseWideViewPort(true); //设置此属性，可任意比例缩放 97 webView.getSettings().setLoadWithOverviewMode(true); //设置加载内容自适应屏幕 98 //使WebView组件具有放大和缩小网页的功能 99 webView.getSettings().setSupportZoom(true);100 webView.getSettings().setBuiltInZoomControls(true);101 Log.i("dddddddd", start);102 //调用网页百度地图进行路径规划，如果精度不够可能得开启浏览器定位权限103 webView.loadUrl("http://api.map.baidu.com/direction?origin=latlng:" + start +104 "|name:我的位置&destination=" + destination +105 "&mode=driving&region=南宁&output=html&src=webapp.baidu.openAPIdemo");//指定要加载的网页106 } else {107 Toast.makeText(ToThere.this, "无法获取定位信息！请移动", Toast.LENGTH_SHORT).show();108  }109  }110 }

activity_main.xml：

 1 <?xml version="1.0" encoding="utf-8"?> 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 3 xmlns:app="http://schemas.android.com/apk/res-auto" 4 xmlns:tools="http://schemas.android.com/tools" 5 android:layout_width="match_parent" 6 android:layout_height="match_parent" 7 android:orientation="vertical" 8 tools:context=".MainActivity"> 9 10 <TextView11 android:layout_width="match_parent"12 android:layout_height="wrap_content"13 android:text="社区卫生服务中心名称（地址）："/>14 15 <EditText16 android:id="@+id/ed_hc_address"17 android:layout_width="match_parent"18 android:layout_height="wrap_content" />19 20 <LinearLayout21 android:layout_width="match_parent"22 android:layout_height="wrap_content">23 24 <Button25 android:id="@+id/btn_hc_saveAddress"26 android:layout_width="wrap_content"27 android:layout_height="wrap_content"28 android:text="点击保存"/>29 30 <Button31 android:id="@+id/btn_hc_toThere"32 android:layout_width="wrap_content"33 android:layout_height="wrap_content"34 android:text="点击规划路线"/>35 36 </LinearLayout>37 38 </LinearLayout>

activity_to_there.xml：

 1 <?xml version="1.0" encoding="utf-8"?> 2 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 3 xmlns:app="http://schemas.android.com/apk/res-auto" 4 xmlns:tools="http://schemas.android.com/tools" 5 android:layout_width="match_parent" 6 android:layout_height="match_parent" 7 tools:context=".ToThere"> 8  9 <WebView10 android:id="@+id/wv_hc"11 android:layout_width="match_parent"12 android:layout_height="match_parent" />13 14 </RelativeLayout>