如何在android中通过纬度和经度获取城市名称? [英] How to Get City Name by Latitude &Longitude in android?
本文介绍了如何在android中通过纬度和经度获取城市名称?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我想按当前位置的城市名称，但我有纬度和经度.如何得到它?我使用按钮单击然后我得到双值纬度和经度.我在下面的代码.请帮助我.
I want to city name by current location but i have latitude and longitude.how to get it? i used button click then i get double value latitude and longitude. my code in below.please help me.
谢谢！！
Button btnShowLocation;
GPSTracker gps;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
btnShowLocation = (Button) findViewById(R.id.btnShowLocation);
// show location button click event
btnShowLocation.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// create class object
gps = new GPSTracker(AndroidGPSTrackingActivity.this);
// check if GPS enabled
if(gps.canGetLocation()){
double latitude = gps.getLatitude();
double longitude = gps.getLongitude();
//
is for new line
Toast.makeText(getApplicationContext(), "Your Location is -
Lat: " + latitude + "
Long: " + longitude, Toast.LENGTH_LONG).show();
}else{
gps.showSettingsAlert();
}
}
});
我编辑了下面的代码，但没有得到城市名，请帮帮我！！！
I edited below code but not get cityname please help me !!!
Button btnShowLocation;
GPSTracker gps;
String CityName;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
btnShowLocation = (Button) findViewById(R.id.btnShowLocation);
// show location button click event
btnShowLocation.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// create class object
gps = new GPSTracker(AndroidGPSTrackingActivity.this);
// check if GPS enabled
if (gps.canGetLocation()) {
double latitude = gps.getLatitude();
double longitude = gps.getLongitude();
Geocoder geocoder = new Geocoder(
AndroidGPSTrackingActivity.this, Locale
.getDefault());
List<Address> addresses;
try {
Log.v("log_tag", "latitude" + latitude);
Log.v("log_tag", "longitude" + longitude);
addresses = geocoder.getFromLocation(latitude,
longitude, 1);
Log.v("log_tag", "addresses+)_+++" + addresses);
CityName = addresses.get(0).getAddressLine(0);
Log.v("log_tag", "CityName" + CityName);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
//
is for new line
Toast.makeText(
getApplicationContext(),
"Your Location is -
Lat: " + latitude
+ "
Long: " + longitude, Toast.LENGTH_LONG)
.show();
} else {
gps.showSettingsAlert();
}
}
});
但我在下面得到错误::::
But I get Error in below::::
03-11 17:01:46.465: W/System.err(27587): java.io.IOException: Service not Available
03-11 17:01:46.465: W/System.err(27587): at android.location.Geocoder.getFromLocation(Geocoder.java:136)
03-11 17:01:46.465: W/System.err(27587): at com.example.gpstracking.AndroidGPSTrackingActivity$1.onClick(AndroidGPSTrackingActivity.java:81)
03-11 17:01:46.465: W/System.err(27587): at android.view.View.performClick(View.java:4191)
03-11 17:01:46.475: W/System.err(27587): at android.view.View$PerformClick.run(View.java:17229)
03-11 17:01:46.475: W/System.err(27587): at android.os.Handler.handleCallback(Handler.java:615)
03-11 17:01:46.475: W/System.err(27587): at android.os.Handler.dispatchMessage(Handler.java:92)
03-11 17:01:46.475: W/System.err(27587): at android.os.Looper.loop(Looper.java:137)
03-11 17:01:46.475: W/System.err(27587): at android.app.ActivityThread.main(ActivityThread.java:4960)
03-11 17:01:46.475: W/System.err(27587): at java.lang.reflect.Method.invokeNative(Native Method)
03-11 17:01:46.475: W/System.err(27587): at java.lang.reflect.Method.invoke(Method.java:511)
03-11 17:01:46.475: W/System.err(27587): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1038)
03-11 17:01:46.475: W/System.err(27587): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:805)
03-11 17:01:46.475: W/System.err(27587): at dalvik.system.NativeStart.main(Native Method)
03-11 17:02:21.335: W/IInputConnectionWrapper(27587): getSelectedText on inactive InputConnection
03-11 17:02:21.335: W/IInputConnectionWrapper(27587): setComposingText on inactive InputConnection
03-11 17:02:21.425: W/IInputConnectionWrapper(27587): getExtractedText on inactive InputConnection
推荐答案
使用这个:
Geocoder geocoder = new Geocoder(this, Locale.getDefault());
List<Address> addresses = geocoder.getFromLocation(MyLat, MyLong, 1);
String cityName = addresses.get(0).getAddressLine(0);
String stateName = addresses.get(0).getAddressLine(1);
String countryName = addresses.get(0).getAddressLine(2);
有关详细的谷歌地图示例，请查看以下链接:http://www.demoadda.com/demo/android/load-googlemap_107
For more in detailed google map example you check the links below: http://www.demoadda.com/demo/android/load-googlemap_107
对于后台位置更新:http://www.demoadda.com/demo/android/download-android-background-location-update-service-demo_21
这篇关于如何在android中通过纬度和经度获取城市名称?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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