百度地图显示，标记折线绘制总结：
- 当中可能存在有一个小BUG，自己的位置标记图标在第一次调试的手机上可以运行，换一个手机则好像不行，怀疑是assent的原因，但确实也是这样建的文件夹，运行编译器也没有报错，小图标就是闪两下就没有了，下面是重新构建重打的代码，目前运行没有问题
- SDK检验一直校验失败，还未准确查找原因：怀疑是包名问题，因为key多次重新赋值的
- BaiduMap.onMapClickListener() 单次点击：似乎用一次就会销毁，最开始不知道导致点的个数始终不能大于一，无法绘制折线
- 其他的内容参考为百度地图开发文档
MainActivity
SDK KEY校验：
activity_main:
proguard-rules.pro：
相关权限等申明：
proguard-rules.pro：
-keep class com.baidu.** {*;}
-keep class vi.com.** {*;}
-keep class com.baidu.vi.** {*;}
-dontwarn com.baidu.**
MainActivity：
package com.example.lbsmappro;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;
import android.Manifest;
import android.content.IntentFilter;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.util.Log;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import com.baidu.location.BDAbstractLocationListener;
import com.baidu.location.BDLocation;
import com.baidu.location.LocationClient;
import com.baidu.location.LocationClientOption;
import com.baidu.mapapi.SDKInitializer;
import com.baidu.mapapi.map.BaiduMap;
import com.baidu.mapapi.map.BitmapDescriptor;
import com.baidu.mapapi.map.BitmapDescriptorFactory;
import com.baidu.mapapi.map.MapPoi;
import com.baidu.mapapi.map.MapStatusUpdate;
import com.baidu.mapapi.map.MapStatusUpdateFactory;
import com.baidu.mapapi.map.MapView;
import com.baidu.mapapi.map.Marker;
import com.baidu.mapapi.map.MarkerOptions;
import com.baidu.mapapi.map.MyLocationData;
import com.baidu.mapapi.map.OverlayOptions;
import com.baidu.mapapi.map.PolylineOptions;
import com.baidu.mapapi.model.LatLng;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends AppCompatActivity {
public static final String TAG = "MainActivity";
public LocationClient mLocationClient;
private TextView positionText;
private Button changeButton;
private MapView mapView;
public static BaiduMap baiduMap;
private boolean isFirstLocate = true;
ArrayList lngList = new ArrayList<>();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mLocationClient = new LocationClient(getApplicationContext());
mLocationClient.registerLocationListener(new MyLocationListener());
SDKInitializer.initialize(getApplicationContext());
setContentView(R.layout.activity_main);
mapView = findViewById(R.id.bmapView);
baiduMap = mapView.getMap();
baiduMap.setMyLocationEnabled(true);
IntentFilter iFilter = new IntentFilter();
iFilter.addAction(SDKInitializer.SDK_BROADTCAST_ACTION_STRING_PERMISSION_CHECK_ERROR);
iFilter.addAction(SDKInitializer.SDK_BROADTCAST_ACTION_STRING_PERMISSION_CHECK_OK);
SDKReceiver mReceiver = new SDKReceiver();
registerReceiver(mReceiver, iFilter);
BaiduMap.OnMapClickListener listener = new BaiduMap.OnMapClickListener() {
@Override
public void onMapClick(LatLng latLng) {
BitmapDescriptor bitmap = BitmapDescriptorFactory.fromResource(R.drawable.mark_orange);
MarkerOptions options = new MarkerOptions()
.position(latLng)
.icon(bitmap);
baiduMap.addOverlay(options);
lngList.add(latLng);
// 当标记点的坐标大于一个时，绘制线路
if (lngList.size() > 1){
Log.d(TAG, "onMapClick: mark个数为"+lngList.size());
// 折线每个点的颜色值
List colorValue = new ArrayList();
colorValue.add(0xAAFF0000);
colorValue.add(0xAA00FF00);
colorValue.add(0xAA0000FF);
colorValue.add(0xAA00FF00);
colorValue.add(0xAAFF0000);
PolylineOptions mOverLine = new PolylineOptions()
.width(5)
// 设置渐变
.isGradient(true)
.color(0xAAFF0000)
.points(lngList)
// 设置每个点带一个颜色
.colorsValues(colorValue);
baiduMap.addOverlay(mOverLine);
}
}
@Override
public void onMapPoiClick(MapPoi mapPoi) {
}
};
baiduMap.setOnMapClickListener(listener);
BaiduMap.OnMarkerClickListener listener1 = new BaiduMap.OnMarkerClickListener() {
@Override
public boolean onMarkerClick(Marker marker) {
Toast.makeText(MainActivity.this, "你点击了标记的点！", Toast.LENGTH_SHORT).show();
return false;//是否捕获点击事件
}
};
baiduMap.setOnMarkerClickListener(listener1);
ArrayList permissionList = new ArrayList<>();
if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.ACCESS_FINE_LOCATION)
!= PackageManager.PERMISSION_GRANTED) {
permissionList.add(Manifest.permission.ACCESS_FINE_LOCATION);
}
if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.READ_PHONE_STATE)
!= PackageManager.PERMISSION_GRANTED) {
permissionList.add(Manifest.permission.READ_PHONE_STATE);
}
if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.WRITE_EXTERNAL_STORAGE)
!= PackageManager.PERMISSION_GRANTED) {
permissionList.add(Manifest.permission.WRITE_EXTERNAL_STORAGE);
}
if (!permissionList.isEmpty()) {
String[] permissions = permissionList.toArray(new String[permissionList.size()]);
ActivityCompat.requestPermissions(MainActivity.this, permissions, 1);
} else {
// 自定义方法，用于开启客户定位
requestLocation();
Toast.makeText(MainActivity.this, "已授权，正在获取位置", Toast.LENGTH_SHORT).show();
}
}
private void requestLocation() {
// 初始化设置参数
initLocation();
mLocationClient.start();
}
private void initLocation() {
LocationClientOption option = new LocationClientOption();
option.setLocationMode(LocationClientOption.LocationMode.Hight_Accuracy);
option.setScanSpan(5000);
option.setOpenGps(true);
option.setCoorType("bd09ll");
option.setIsNeedAddress(true);
option.setIsNeedLocationDescribe(true);
option.setIsNeedLocationPoiList(true);
mLocationClient.setLocOption(option);
}
public class MyLocationListener extends BDAbstractLocationListener {
@Override
public void onReceiveLocation(BDLocation bdLocation) {
if (bdLocation.getLocType() == BDLocation.TypeGpsLocation || bdLocation.getLocType() == BDLocation.TypeNetWorkLocation) {
navigateTo(bdLocation);
}
}
}
private void navigateTo(BDLocation bdLocation) {
if (isFirstLocate) {
LatLng lng = new LatLng(bdLocation.getLatitude(), bdLocation.getLongitude());
MapStatusUpdate update = MapStatusUpdateFactory.newLatLng(lng);
baiduMap.animateMapStatus(update);
update = MapStatusUpdateFactory.zoomTo(18f);
baiduMap.animateMapStatus(update);
isFirstLocate = false;
}
MyLocationData builder = new MyLocationData.Builder()
.accuracy(bdLocation.getRadius())
.direction(bdLocation.getDirection())
.latitude(bdLocation.getLatitude())
.longitude(bdLocation.getLongitude())
.build();
baiduMap.setMyLocationData(builder);
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
switch (requestCode) {
case 1: {
if (grantResults.length > 0) {
for (int result : grantResults) {
if (result != PackageManager.PERMISSION_GRANTED) {
Toast.makeText(MainActivity.this, "您同意授权所有权限才可以使用相关功能", Toast.LENGTH_SHORT).show();
finish();
return;
}
}
requestLocation();
Toast.makeText(MainActivity.this, "授权成功 正在模拟定位！", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(MainActivity.this, "发生未知错误！请尝试重新打开程序", Toast.LENGTH_SHORT).show();
}
break;
}
default:
break;
}
}
@Override
protected void onDestroy() {
super.onDestroy();
mLocationClient.stop();
mapView.onDestroy();
baiduMap.setMyLocationEnabled(false);
}
@Override
protected void onPause() {
super.onPause();
mapView.onPause();
}
@Override
protected void onResume() {
super.onResume();
mapView.onResume();
}
}
SDK KEY校验：
package com.example.lbsmappro;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.widget.Toast;
import com.baidu.mapapi.SDKInitializer;
public class SDKReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (action.equals(SDKInitializer.SDK_BROADTCAST_ACTION_STRING_PERMISSION_CHECK_ERROR)) {
Toast.makeText(context.getApplicationContext(), "KEY 验证失败！", Toast.LENGTH_SHORT).show();
} else if (action.equals(SDKInitializer.SDK_BROADTCAST_ACTION_STRING_PERMISSION_CHECK_OK)) {
Toast.makeText(context.getApplicationContext(), "KEY 验证成功！", Toast.LENGTH_SHORT).show();
}
}
}
activity_main:
回到开始
