问题描述
我对反向地理编码有疑问。当我要将坐标转换为地址时，Geocoder返回此错误：
原因：java.io.IOException：grpc失败
这是我的代码：
val btnbymap = mycustomview.findViewById<Button>(R.id.edit_by_map)
btnbymap.setonClickListener {
if (ContextCompat.checkSelfPermission(
vl.context,android.Manifest.permission.ACCESS_FINE_LOCATION
) == PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(
vl.context,android.Manifest.permission.ACCESS_COARSE_LOCATION
) == PackageManager.PERMISSION_GRANTED
) {
fusedLocationProviderClient.lastLocation.addOnSuccessListener(requireActivity()) {
location = it
val gcd = Geocoder(context,Locale.getDefault())
val addresses: List<Address> =
gcd.getFromLocationName("name",1)
addresses[0].getAddressLine(0)
Toast.makeText(context,"${addresses}",Toast.LENGTH_LONG).show()
}
} else {
requestPermissions(
arrayOf(
android.Manifest.permission.ACCESS_FINE_LOCATION,android.Manifest.permission.ACCESS_COARSE_LOCATION
),RequestCode
)
}
}
}
我该如何解决？反向进行地址解析是否有其他选择？
解决方法
如果您想从您所说的坐标中获取地址，则应使用：
val addresses: List<Address> = geoCoder.getFromLocation(latitude,longitude,1)
val result = addresses[0].locality
geoCoder.getFromLocationName（）用于当您想从字符串地址了解纬度和经度时。
此外，要检索位置的经度和纬度，可以使用以下命令：
fusedLocationClient.lastLocation.addOnSuccessListener {location: Location? ->
if(location != null) {
val myLatitude = location.latitude
val myLongitude = location.longitude
}
}
因为您要求替代方法，所以我将在此处发布解决方法。 Google Maps是您的最佳选择，它会根据我的经验为您提供准确的地址。这使用改造来进行Api调用
class GetLocationDetail(addressCallBack: LocationData.AddressCallBack,context: Context) {
private val addressCallBack: LocationData.AddressCallBack
private val context: Context
fun getAddress(latitude: Double,longitude: Double,key: String) {
try {
val geocoder = Geocoder(context,Locale.getDefault())
val addresses: List<Address> = geocoder.getFromLocation(latitude,1)
if (addresses != null && addresses.size > 0) {
val address: String =
addresses[0].getAddressLine(0) // If any additional address line present than only,check with max available address lines by getMaxAddressLineIndex()
val city: String = addresses[0].getLocality()
val state: String = addresses[0].getAdminArea()
val country: String = addresses[0].getCountryName()
val postalCode: String = addresses[0].getPostalCode()
val knownName: String =
addresses[0].getFeatureName() // Only if available else return NULL
val locationData = LocationData()
locationData.setCity(city)
locationData.setFull_address(address)
locationData.setPincode(postalCode)
locationData.setCountry(country)
addressCallBack.locationData(locationData)
}
} catch (e: IOException) {
e.printStackTrace()
getAddressFromApi(latitude,key)
}
}
private fun getAddressFromApi(latitude: Double,key: String) {
val tempBuilder = StringBuilder()
tempBuilder.append(latitude)
tempBuilder.append(",")
tempBuilder.append(longitude)
val dataService: DataService = retrofitInstance.create(
DataService::class.java
)
val stringCall: Call<String> = dataService.getData(tempBuilder.toString(),true,key)
if (stringCall.isExecuted()) {
stringCall.cancel()
}
stringCall.enqueue(object : Callback<String?>() {
fun onResponse(call: Call<String?>?,response: Response<String?>) {
try {
val jsonObject = JSONObject(response.body())
val Results: JSONArray = jsonObject.getJSONArray("results")
val zero: JSONObject = Results.getJSONObject(0)
val address_components: JSONArray = zero.getJSONArray("address_components")
val locationData = LocationData()
locationData.setFull_address(zero.getString("formatted_address"))
for (i in 0 until address_components.length()) {
val zero2: JSONObject = address_components.getJSONObject(i)
val long_name: String = zero2.getString("long_name")
val mtypes: JSONArray = zero2.getJSONArray("types")
val Type: String = mtypes.getString(0)
if (TextUtils.isEmpty(long_name) === false || long_name != null || long_name.length > 0 || long_name !== "") {
if (Type.equals("street_number",ignoreCase = true)) {
//Address1 = long_name + " ";
} else if (Type.equals("route",ignoreCase = true)) {
//Address1 = Address1 + long_name;
} else if (Type.equals("sublocality",ignoreCase = true)) {
// Address2 = long_name;
} else if (Type.equals("locality",ignoreCase = true)) {
// Address2 = Address2 + long_name + ",";
locationData.setCity(long_name)
} else if (Type.equals(
"administrative_area_level_2",ignoreCase = true
)
) {
// County = long_name;
} else if (Type.equals(
"administrative_area_level_1",ignoreCase = true
)
) {
// State = long_name;
} else if (Type.equals("country",ignoreCase = true)) {
locationData.setCountry(long_name)
} else if (Type.equals("postal_code",ignoreCase = true)) {
locationData.setPincode(long_name)
}
}
}
addressCallBack.locationData(locationData)
} catch (e: JSONException) {
e.printStackTrace()
}
}
fun onFailure(call: Call<String?>?,t: Throwable) {
Log.v("response",t.toString())
}
})
}
private interface DataService {
@GET("api/geocode/json")
fun getData(
@Query("latlng") latLong: String?,@Query("sensor") sensor: Boolean,@Query("key") key: String?
): Call<String?>?
}
companion object {
private const val BASE_URL = "https://maps.googleapis.com/maps/"
private var retrofit: Retrofit? = null
private val retrofitInstance: Retrofit?
private get() {
if (retrofit == null) {
retrofit = Builder()
.baseUrl(BASE_URL)
.addConverterFactory(ScalarsConverterFactory.create())
.build()
}
return retrofit
}
}
init {
this.addressCallBack = addressCallBack
this.context = context
}
}
必需的类LocationData
class LocationData {
var city: String? = null
var country: String? = null
var pincode: String? = null
var full_address: String? = null
interface AddressCallBack {
fun locationData(locationData: LocationData?)
}
}
如果有帮助，请标记为答案：）