Android 如何从地址中找到经纬度?
我想在谷歌地图中显示地址的位置 如何使用Google Maps API获取地址的纬度和经度?Android 如何从地址中找到经纬度?,android,google-maps,google-geocoder,Android,Google Maps,Google Geocoder,我想在谷歌地图中显示地址的位置 如何使用Google Maps API获取地址的纬度和经度?公共地理点getLocationFromAddress(字符串){ public GeoPoint getLocationFromAddress(String strAddress){ Geocoder coder = new Geocoder(this); List<Address> address; GeoPoint p1 = null; try { address = cod
公共地理点getLocationFromAddress(字符串){
public GeoPoint getLocationFromAddress(String strAddress){
Geocoder coder = new Geocoder(this);
List<Address> address;
GeoPoint p1 = null;
try {
address = coder.getFromLocationName(strAddress,5);
if (address==null) {
return null;
}
Address location=address.get(0);
location.getLatitude();
location.getLongitude();
p1 = new GeoPoint((double) (location.getLatitude() * 1E6),
(double) (location.getLongitude() * 1E6));
return p1;
}
}
地理编码器=新地理编码器(本);
名单地址;
地球点p1=零;
试一试{
地址=编码者。getFromLocationName(StradAddress,5);
如果(地址==null){
返回null;
}
地址位置=地址。获取(0);
location.getLatitude();
location.getLongitude();
p1=新的地质点((双)(location.getLatitude()*1E6),
(double)(location.getLongitude()*1E6));
返回p1;
}
}
strAddress
是包含地址的字符串。address
变量保存转换后的地址。这是如何找到我们在地图上单击的位置的纬度和经度
public boolean onTouchEvent(MotionEvent event, MapView mapView)
{
//---when user lifts his finger---
if (event.getAction() == 1)
{
GeoPoint p = mapView.getProjection().fromPixels(
(int) event.getX(),
(int) event.getY());
Toast.makeText(getBaseContext(),
p.getLatitudeE6() / 1E6 + "," +
p.getLongitudeE6() /1E6 ,
Toast.LENGTH_SHORT).show();
}
return false;
}
它工作得很好
要获取位置的地址,我们可以使用geocoder类。如果您想在谷歌地图中放置您的地址,请使用以下简单方法
Intent searchAddress = new Intent(Intent.ACTION_VIEW,Uri.parse("geo:0,0?q="+address));
startActivity(searchAddress);
public static JSONObject getLocationInfo(String address) {
StringBuilder stringBuilder = new StringBuilder();
try {
address = address.replaceAll(" ","%20");
HttpPost httppost = new HttpPost("http://maps.google.com/maps/api/geocode/json?address=" + address + "&sensor=false");
HttpClient client = new DefaultHttpClient();
HttpResponse response;
stringBuilder = new StringBuilder();
response = client.execute(httppost);
HttpEntity entity = response.getEntity();
InputStream stream = entity.getContent();
int b;
while ((b = stream.read()) != -1) {
stringBuilder.append((char) b);
}
} catch (ClientProtocolException e) {
} catch (IOException e) {
}
JSONObject jsonObject = new JSONObject();
try {
jsonObject = new JSONObject(stringBuilder.toString());
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return jsonObject;
}
public static boolean getLatLong(JSONObject jsonObject) {
try {
longitute = ((JSONArray)jsonObject.get("results")).getJSONObject(0)
.getJSONObject("geometry").getJSONObject("location")
.getDouble("lng");
latitude = ((JSONArray)jsonObject.get("results")).getJSONObject(0)
.getJSONObject("geometry").getJSONObject("location")
.getDouble("lat");
} catch (JSONException e) {
return false;
}
return true;
}
或
如果您需要从您的地址获取lat long,请使用下面的Google Place Api
Intent searchAddress = new Intent(Intent.ACTION_VIEW,Uri.parse("geo:0,0?q="+address));
startActivity(searchAddress);
public static JSONObject getLocationInfo(String address) {
StringBuilder stringBuilder = new StringBuilder();
try {
address = address.replaceAll(" ","%20");
HttpPost httppost = new HttpPost("http://maps.google.com/maps/api/geocode/json?address=" + address + "&sensor=false");
HttpClient client = new DefaultHttpClient();
HttpResponse response;
stringBuilder = new StringBuilder();
response = client.execute(httppost);
HttpEntity entity = response.getEntity();
InputStream stream = entity.getContent();
int b;
while ((b = stream.read()) != -1) {
stringBuilder.append((char) b);
}
} catch (ClientProtocolException e) {
} catch (IOException e) {
}
JSONObject jsonObject = new JSONObject();
try {
jsonObject = new JSONObject(stringBuilder.toString());
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return jsonObject;
}
public static boolean getLatLong(JSONObject jsonObject) {
try {
longitute = ((JSONArray)jsonObject.get("results")).getJSONObject(0)
.getJSONObject("geometry").getJSONObject("location")
.getDouble("lng");
latitude = ((JSONArray)jsonObject.get("results")).getJSONObject(0)
.getJSONObject("geometry").getJSONObject("location")
.getDouble("lat");
} catch (JSONException e) {
return false;
}
return true;
}
创建一个方法,返回一个JSONObject,并响应HTTP调用,如下所示
Intent searchAddress = new Intent(Intent.ACTION_VIEW,Uri.parse("geo:0,0?q="+address));
startActivity(searchAddress);
public static JSONObject getLocationInfo(String address) {
StringBuilder stringBuilder = new StringBuilder();
try {
address = address.replaceAll(" ","%20");
HttpPost httppost = new HttpPost("http://maps.google.com/maps/api/geocode/json?address=" + address + "&sensor=false");
HttpClient client = new DefaultHttpClient();
HttpResponse response;
stringBuilder = new StringBuilder();
response = client.execute(httppost);
HttpEntity entity = response.getEntity();
InputStream stream = entity.getContent();
int b;
while ((b = stream.read()) != -1) {
stringBuilder.append((char) b);
}
} catch (ClientProtocolException e) {
} catch (IOException e) {
}
JSONObject jsonObject = new JSONObject();
try {
jsonObject = new JSONObject(stringBuilder.toString());
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return jsonObject;
}
public static boolean getLatLong(JSONObject jsonObject) {
try {
longitute = ((JSONArray)jsonObject.get("results")).getJSONObject(0)
.getJSONObject("geometry").getJSONObject("location")
.getDouble("lng");
latitude = ((JSONArray)jsonObject.get("results")).getJSONObject(0)
.getJSONObject("geometry").getJSONObject("location")
.getDouble("lat");
} catch (JSONException e) {
return false;
}
return true;
}
现在将JSONObject传递给getLatLong()方法,如下所示
Intent searchAddress = new Intent(Intent.ACTION_VIEW,Uri.parse("geo:0,0?q="+address));
startActivity(searchAddress);
public static JSONObject getLocationInfo(String address) {
StringBuilder stringBuilder = new StringBuilder();
try {
address = address.replaceAll(" ","%20");
HttpPost httppost = new HttpPost("http://maps.google.com/maps/api/geocode/json?address=" + address + "&sensor=false");
HttpClient client = new DefaultHttpClient();
HttpResponse response;
stringBuilder = new StringBuilder();
response = client.execute(httppost);
HttpEntity entity = response.getEntity();
InputStream stream = entity.getContent();
int b;
while ((b = stream.read()) != -1) {
stringBuilder.append((char) b);
}
} catch (ClientProtocolException e) {
} catch (IOException e) {
}
JSONObject jsonObject = new JSONObject();
try {
jsonObject = new JSONObject(stringBuilder.toString());
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return jsonObject;
}
public static boolean getLatLong(JSONObject jsonObject) {
try {
longitute = ((JSONArray)jsonObject.get("results")).getJSONObject(0)
.getJSONObject("geometry").getJSONObject("location")
.getDouble("lng");
latitude = ((JSONArray)jsonObject.get("results")).getJSONObject(0)
.getJSONObject("geometry").getJSONObject("location")
.getDouble("lat");
} catch (JSONException e) {
return false;
}
return true;
}
我希望这对你和其他人都有帮助。。!!
谢谢你 以下代码适用于google apiv2:
public void convertAddress() {
if (address != null && !address.isEmpty()) {
try {
List<Address> addressList = geoCoder.getFromLocationName(address, 1);
if (addressList != null && addressList.size() > 0) {
double lat = addressList.get(0).getLatitude();
double lng = addressList.get(0).getLongitude();
}
} catch (Exception e) {
e.printStackTrace();
} // end catch
} // end if
} // end convertAddress
公共地址(){
if(address!=null&&!address.isEmpty()){
试一试{
List addressList=geoCoder.getFromLocationName(地址,1);
if(addressList!=null&&addressList.size()>0){
double lat=addressList.get(0.getLatitude();
double lng=addressList.get(0.getLongitude();
}
}捕获(例外e){
e、 printStackTrace();
}//端盖
}//如果结束,则结束
}//结束地址
其中address是要转换为LatLng的字符串(123测试第三城市州zip)。以上坎达问题的答案: 它抛出“java.io.IOException服务不可用”
我已经给了那些权限,包括库…我可以得到地图视图…它在geocoder抛出IOException 我只是在尝试之后添加了一个catch IOException,它解决了问题
catch(IOException ioEx){
return null;
}
Ud_an的解决方案和更新的API 注意:该类是Google Play服务的一部分 强制要求:
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.INTERNET"/>
更新:如果您有目标SDK 23及更高版本,请确保您拥有位置的运行时权限
public LatLng getLocationFromAddress(Context context,String strAddress) {
Geocoder coder = new Geocoder(context);
List<Address> address;
LatLng p1 = null;
try {
// May throw an IOException
address = coder.getFromLocationName(strAddress, 5);
if (address == null) {
return null;
}
Address location = address.get(0);
p1 = new LatLng(location.getLatitude(), location.getLongitude() );
} catch (IOException ex) {
ex.printStackTrace();
}
return p1;
}
public LatLng getLocationFromAddress(上下文,字符串){
地理编码器=新地理编码器(上下文);
名单地址;
LatLng p1=null;
试一试{
//可能会抛出一个异常
地址=编码者。getFromLocationName(StradAddress,5);
如果(地址==null){
返回null;
}
地址位置=地址。获取(0);
p1=新车床(location.getLatitude(),location.getLongitude());
}捕获(IOEX异常){
例如printStackTrace();
}
返回p1;
}
Geocoder coder=新的地理编码器(本);
列出地址;
试一试{
地址=编码器。getFromLocationName(地址,5);
如果(地址==null){
}
地址位置=地址。获取(0);
双纬度=location.getLatitude();
double lng=location.getLongitude();
对数i(“Lat”,“Lat+Lat”);
Log.i(“液化天然气”和“液化天然气”);
LatLng LatLng=新LatLng(lat,lng);
MarkerOptions MarkerOptions=新MarkerOptions();
标记选项位置(板条);
googleMap.addMarker(markerOptions);
googleMap.animateCamera(CameraUpdateFactory.newLatLngZoom(latLng,12));
}捕获(IOE异常){
e、 printStackTrace();
}
公共无效goToLocationFromAddress(字符串){
//使用活动上下文创建编码器-此
地理编码器=新地理编码器(本);
名单地址;
试一试{
//从绳子上取板条
地址=编码者。getFromLocationName(StradAddress,5);
//检查空值
if(地址!=null){
//让我们从所有可能性中选取第一种可能性。
试一试{
地址位置=地址。获取(0);
LatLng LatLng=新LatLng(location.getLatitude(),location.getLongitude());
//在该地图位置上设置动画并缩放
mMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
mMap.animateCamera(CameraUpdateFactory.zoomTo(15));
}捕获(IndexOutOfBoundsException器){
Toast.makeText(此“位置不可用”,Toast.LENGTH_SHORT.show();
}
}
}捕获(IOE异常){
e、 printStackTrace();
}
}
公共LatLang getLatLangFromAddress(字符串){
Geocoder coder=新的Geocoder(这个,Locale.getDefault());
名单地址;
试一试{
地址=编码者。getFromLocationName(StradAddress,5);
如果(地址==null){
返回新的LatLang(-10000,-10000);
}
地址位置=地址。获取(0);
返回新的LatLang(location.getLatitude(),location.getLength());
}捕获(IOE异常){
返回新的LatLang(-10000,-10000);
}
}
LatLang
在本例中是一个pojo类
不需要权限。它抛出“java.io.IOException service not available”您需要正确的权限才能访问该服务你正在构建哪个android api版本的应用程序你需要有google api可用我已经用goog构建了