flutter2接入高德地图定位,工具类封装，打包安卓apk，自定义签名
引入依赖
在pubspec.yaml引入 amap_flutter_location: ^2.0.0 依赖，然后执行 pub get
Android
生成签名文件
在项目android/app 目录下打开终端输入
keytool -genkey -v -keystore xipingflutter.jks -keyalg RSA -keysize 2048 -validity 10000 -alias xiping
输入密钥库口令:
再次输入新口令:
您的名字与姓氏是什么?
[Unknown]: adam
您的组织单位名称是什么?
[Unknown]: xiping
您的组织名称是什么?
[Unknown]: xiping
您所在的城市或区域名称是什么?
[Unknown]: cn
您所在的省/市/自治区名称是什么?
[Unknown]: cn
该单位的双字母国家/地区代码是什么?
[Unknown]: CN
CN=adam, OU=xiping, O=xiping, L=cn, ST=cn, C=CN是否正确?
[否]: 是
正在为以下对象生成 2,048 位RSA密钥对和自签名证书 (SHA256withRSA) (有效期为 10,000 天):
CN=adam, OU=xiping, O=xiping, L=cn, ST=cn, C=CN
输入 <xiping> 的密钥口令
(如果和密钥库口令相同, 按回车):
[正在存储xipingflutter.jks]
之后会在android/app目录下生成xipingflutter.jks签名文件，此文件用户安卓打包的签名文件
Android Studio配置密钥
在 android\app目录下创建 keystore.properties文件，写入如下内容配置,保存
storePassword=xiping2021
keyPassword=xiping2021
keyAlias=xiping
storeFile=xipingflutter.jks
修改 andorid\app\build.gradle 文件，增加如下配置
// 定义签名的信息
def keystoreProperties = new Properties()
def keystoreFile = rootProject.file("keysore.properties")
if (keystoreFile.exists()) {
keystoreFile.withReader('UTF-8') { reader ->
keystoreProperties.load(reader)
}
}
def storePassword = keystoreProperties.getProperty("storePassword","xiping2021")
def keyPassword = keystoreProperties.getProperty("keyPassword","xiping2021")
def keyAlias = keystoreProperties.getProperty("keyAlias","xiping")
def storeFile = keystoreProperties.getProperty("storeFile","xipingflutter.jks")
//签名信息end
signingConfigs {
release {
keyAlias keyAlias
keyPassword keyPassword
storeFile file(storeFile)
storePassword storePassword
}
}
buildTypes {
release {
signingConfig signingConfigs.release
}
debug {
signingConfig signingConfigs.release
}
}
经过以上配置，我们调试安卓app就使用自定义的keystore调试了，发布上线可以用打包命令打包flutter build apk --no-shrink，自动使用自定义签名
添加安卓应用
在高德lbs后台应用列表添加安卓应用，包名写我们的包名，安全码获取方式这里重点说一下，进入我们自定义的签名文件路径然后打开终端，我们这里的目录是android\app目录，输入下面指令获取安全码
keytool -v -list -keystore xipingflutter.jks
输入密钥库口令:
密钥库类型: JKS
密钥库提供方: SUN
您的密钥库包含 1 个条目
别名: xiping
创建日期: 2021-6-2
条目类型: PrivateKeyEntry
证书链长度: 1
证书[1]:
所有者: CN=adam, OU=xiping, O=xiping, L=cn, ST=cn, C=CN
发布者: CN=adam, OU=xiping, O=xiping, L=cn, ST=cn, C=CN
序列号: 5c11ef65
有效期开始日期: Wed Jun 02 16:42:24 CST 2021, 截止日期: Sun Oct 18 16:42:24 CST 2048
证书指纹:
MD5: 68:BB:E4:EE:E4:38:F6:0C:F7:BD:82:C5:3C:C9:2F:23
SHA1: CB:E3:F9:8B:15:48:EE:E9:3D:4E:BE:F4:C4:D1:96:C7:56:DE:C0:AF
SHA256: FB:47:E4:9E:80:93:50:CF:C1:9E:4F:64:E7:CF:C3:AE:88:F5:48:A9:2C:58:25:07:42:9A:CF:05:9C:C2:D7:5C
签名算法名称: SHA256withRSA
版本: 3
上面对应的SHA1就是我们需要在高德控制台填入的安全码CB:E3:F9:8B:15:48:EE:E9:3D:4E:BE:F4:C4:D1:96:C7:56:DE:C0:AF,
具体可以参考
iOS
配置参考
Flutter
基本工具类AmapLocationUtil：
import 'dart:async';
import 'package:amap_flutter_location/amap_flutter_location.dart';
import 'package:amap_flutter_location/amap_location_option.dart';
import 'package:permission_handler/permission_handler.dart';
import 'package:xiping/model/location/location_result.dart';
///
/// @author adam
/// @site https://www.lixiaopeng.top
/// @create 2021/6/2 18:22
///高德地图定位
typedef OnLocationChanged = void Function(LocationResult result);
typedef OnPermissionDenied =void Function();
class AmapLocationUtil{
StreamSubscription<Map<String, Object>>? _locationListener;
AMapFlutterLocation _locationPlugin = new AMapFlutterLocation();
OnPermissionDenied? onPermissionDenied;
OnLocationChanged? onLocationChanged;
AmapLocationUtil({
this.onLocationChanged,
this.onPermissionDenied
}){
initAMapLocationKey();
}
/// 动态申请定位权限
void requestPermissionAndStartLocation() async {
bool hasLocationPermission = await _requestLocationPermission();
if (hasLocationPermission) {
_setLocationOption();
startLocation();
} else {
onPermissionDenied!=null?onPermissionDenied!():print("location permission denied");
}
}
Future<bool> _requestLocationPermission() async {
var status = await Permission.location.status;
if (status == PermissionStatus.granted) {
//已经授权
return true;
} else {
//未授权则发起一次申请
status = await Permission.location.request();
if (status == PermissionStatus.granted) {
return true;
} else {
return false;
}
}
}
void startLocation() => _locationPlugin.startLocation();
void stopLocation() => _locationPlugin.stopLocation();
void dispose() {
if (_locationListener != null) _locationListener!.cancel();
if (_locationPlugin != null) _locationPlugin.destroy();
}
/// 设置 key
void initAMapLocationKey() {
AMapFlutterLocation.setApiKey("19edef297ba779471b291bfba9896298", "19edef297ba779471b291bfba9896298");
_locationListener = _locationPlugin.onLocationChanged().listen(
(Map<String, Object> result) {
result.forEach((key, value) {
print("---location $key -----$value");
});
LocationResult location = LocationResult.fromJson(result);
onLocationChanged!=null?onLocationChanged!(location):print("no location callback");
if (location.province != null) {
stopLocation();
}
},
);
}
/// 申请定位权限
/// 授予定位权限返回true， 否则返回false
Future<bool> requestLocationPermission() async {
//获取当前的权限
var status = await Permission.location.status;
if (status == PermissionStatus.granted) {
//已经授权
return true;
} else {
//未授权则发起一次申请
status = await Permission.location.request();
if (status == PermissionStatus.granted) {
return true;
} else {
return false;
}
}
}
///设置定位参数
void _setLocationOption() {
AMapLocationOption locationOption = new AMapLocationOption();
///是否单次定位
locationOption.onceLocation = false;
///是否需要返回逆地理信息
locationOption.needAddress = true;
///逆地理信息的语言类型
locationOption.geoLanguage = GeoLanguage.DEFAULT;
locationOption.desiredLocationAccuracyAuthorizationMode = AMapLocationAccuracyAuthorizationMode.ReduceAccuracy;
locationOption.fullAccuracyPurposeKey = "AMapLocationScene";
///设置Android端连续定位的定位间隔
locationOption.locationInterval = 2000;
///设置Android端的定位模式<br>
///可选值：<br>
///<li>[AMapLocationMode.Battery_Saving]</li>
///<li>[AMapLocationMode.Device_Sensors]</li>
///<li>[AMapLocationMode.Hight_Accuracy]</li>
locationOption.locationMode = AMapLocationMode.Hight_Accuracy;
///设置iOS端的定位最小更新距离<br>
locationOption.distanceFilter = -1;
///设置iOS端期望的定位精度
/// 可选值：<br>
/// <li>[DesiredAccuracy.Best] 最高精度</li>
/// <li>[DesiredAccuracy.BestForNavigation] 适用于导航场景的高精度 </li>
/// <li>[DesiredAccuracy.NearestTenMeters] 10米 </li>
/// <li>[DesiredAccuracy.Kilometer] 1000米</li>
/// <li>[DesiredAccuracy.ThreeKilometers] 3000米</li>
locationOption.desiredAccuracy = DesiredAccuracy.Best;
///设置iOS端是否允许系统暂停定位
locationOption.pausesLocationUpdatesAutomatically = false;
///将定位参数设置给定位插件
_locationPlugin.setLocationOption(locationOption);
}
}
定位返回结果实体类LocationResult:
import 'package:json_annotation/json_annotation.dart';
///
/// @author adam
/// @site https://www.lixiaopeng.top
/// @create 2021/6/2 19:55
/// 定位返回数据
part 'location_result.g.dart';
@JsonSerializable()
class LocationResult{
String? callbackTime;
String? locationTime;
int? locationType;
var latitude;
var longitude;
double? accuracy;
double? altitude;
double? bearing;
double? speed;
String? country;
String? province;
String? city;
String? district;
String? street;
String? streetNumber;
String? cityCode;
String? adCode;
String? address;
String? description;
LocationResult({
this.callbackTime,
this.locationTime,
this.locationType,
this.latitude,
this.longitude,
this.accuracy,
this.altitude,
this.bearing,
this.speed,
this.country,
this.province,
this.city,
this.district,
this.street,
this.streetNumber,
this.cityCode,
this.adCode,
this.address,
this.description,
});
factory LocationResult.fromJson(Map<String, dynamic> json) =>
_$LocationResultFromJson(json);
Map<String, dynamic> toJson() => _$LocationResultToJson(this);
}
定位使用
在StateFullWidget中声明工具类：
AmapLocationUtil? amapLocationUtil;
在initState方法中调用定位：
@override
void initState() {
super.initState();
amapLocationUtil=AmapLocationUtil(onLocationChanged: (result){
print("----定位成功----");
print(result.longitude);
amapLocationUtil!.stopLocation();
},onPermissionDenied: (){
print("location permission denied");
});
amapLocationUtil!.requestPermissionAndStartLocation();
}
在dispose中释放资源：
@override
void dispose() {
super.dispose();
if(amapLocationUtil!=null){
amapLocationUtil!.dispose();
}
}
本文为Adamin90原创文章,转载无需和我联系,但请注明来自http://www.lixiaopeng.top
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