GPS定位+经纬度定位
1、从高德地图下载sdk并放入相应的包
2、权限+key：
key放自己的！！！
3、简单的xml布局
4、Java：
public class TestLocation extends AppCompatActivity {
private MapView mapView;
private AMap aMap;
private LocationManager locationManager;
String[] permission = new String[]{Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.ACCESS_COARSE_LOCATION};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_test_location);
locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
mapView = (MapView) findViewById(R.id.map1);
mapView.onCreate(savedInstanceState);
init1();
RadioButton rb = (RadioButton) findViewById(R.id.gps);
rb.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if (isChecked) {
if (Build.VERSION.SDK_INT > 23) {
if (!checkPermissionAllGranted(permission)) {
requestPermissions(permission, 10000);
} else {
Log.d("----GPS----", "使用GPS");
getGPS();
}
} else {
Log.d("----GPS----", "使用GPS");
getGPS();
}
}
}
});
Button bn = (Button) findViewById(R.id.loc);
final TextView latTv = (TextView) findViewById(R.id.lat);
final TextView lngTv = (TextView) findViewById(R.id.lng);
bn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String lng = lngTv.getEditableText().toString().trim();
String lat = latTv.getEditableText().toString().trim();
if (lng.equals("") || lat.equals("")) {
Toast.makeText(TestLocation.this, "请输入有效的经度、纬度", Toast.LENGTH_SHORT).show();
} else {
((RadioButton) findViewById(R.id.manual)).setChecked(true);
double dlng = Double.parseDouble(lng);
double dlat = Double.parseDouble(lat);
Log.d("----经度----", dlng + "");
Log.d("----纬度----", dlat + "");
LatLng pos = tra(dlat, dlng);
Log.d("------pos------", pos + "");
CameraUpdate cu = CameraUpdateFactory.changeLatLng(pos);
aMap.moveCamera(cu);
MarkerOptions markerOptions = new MarkerOptions();
markerOptions.position(pos);
markerOptions.title("金陵科技学院");
markerOptions.snippet("摘录信息:教育");
markerOptions.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_RED));
markerOptions.draggable(true);
Marker marker = aMap.addMarker(markerOptions);
marker.showInfoWindow();
MarkerOptions markerOptions1 = new MarkerOptions();
LatLng pos1 = tra(dlat + 0.001, dlng);
Log.d("dasdadasdadas", pos1 + "");
markerOptions1.position(pos1)
.title("金陵科技学院食堂")
.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_MAGENTA))
.draggable(true);
ArrayList giflist = new ArrayList<>();
giflist.add(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_BLUE));
giflist.add(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_GREEN));
giflist.add(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_YELLOW));
LatLng pos2 = tra(dlat - 0.001, dlng);
MarkerOptions markerOptions2 = new MarkerOptions()
.position(pos2)
.icons(giflist)
.title("金陵科技学院宿舍")
.draggable(true)
.period(10);
ArrayList optionlist = new ArrayList<>();
optionlist.add(markerOptions1);
optionlist.add(markerOptions2);
aMap.addMarkers(optionlist, true);
}
}
});
}
private void getGPS() {
if (ActivityCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
// TODO: Consider calling
// ActivityCompat#requestPermissions
// here to request the missing permissions, and then overriding
// public void onRequestPermissionsResult(int requestCode, String[] permissions,
// int[] grantResults)
// to handle the case where the user grants the permission. See the documentation
// for ActivityCompat#requestPermissions for more details.
return;
}
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 300, 8, new LocationListener() {
@Override
public void onLocationChanged(Location location) {
updatePosition(location);
double latt = location.getLatitude();
double lngg = location.getLongitude();
Log.d("----latt-----", latt + "+++++++");
Log.d("----lngg-----", lngg + "+++++++");
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
}
@Override
public void onProviderEnabled(String provider) {
if (ActivityCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
// TODO: Consider calling
// ActivityCompat#requestPermissions
// here to request the missing permissions, and then overriding
// public void onRequestPermissionsResult(int requestCode, String[] permissions,
// int[] grantResults)
// to handle the case where the user grants the permission. See the documentation
// for ActivityCompat#requestPermissions for more details.
return;
}
updatePosition(locationManager.getLastKnownLocation(provider));
}
@Override
public void onProviderDisabled(String provider) {
}
});
}
private LatLng tra(double i, double j){
LatLng gps = new LatLng(i, j);
CoordinateConverter converter = new CoordinateConverter(this);
converter.from(CoordinateConverter.CoordType.GPS);
converter.coord(gps);
LatLng pos = converter.convert();
return pos;
}
private void updatePosition(Location location) {
LatLng gps = new LatLng(location.getLatitude(), location.getLongitude());
CoordinateConverter converter = new CoordinateConverter(this);
converter.from(CoordinateConverter.CoordType.GPS);
converter.coord(gps);
LatLng pos = converter.convert();
CameraUpdate cu = CameraUpdateFactory.changeLatLng(pos);
aMap.moveCamera(cu);
aMap.clear();
MarkerOptions markerOptions = new MarkerOptions();
markerOptions.position(pos);
markerOptions.icon(BitmapDescriptorFactory.fromResource(R.mipmap.ic_launcher_round));
markerOptions.draggable(true);
Log.d("----updateposition----", "pos:" + pos);
Marker marker = aMap.addMarker(markerOptions);
Log.d("----updateposition----", "marker:" + marker);
}
private void init1() {
if (aMap == null) {
aMap = mapView.getMap();
CameraUpdate cu = CameraUpdateFactory.zoomTo(15);
aMap.moveCamera(cu);
CameraUpdate tiltUpdate = CameraUpdateFactory.changeTilt(30);
aMap.moveCamera(tiltUpdate);
}
}
@Override
protected void onResume() {
super.onResume();
mapView.onResume();
}
@Override
protected void onPause() {
super.onPause();
mapView.onPause();
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
mapView.onSaveInstanceState(outState);
}
@Override
protected void onDestroy() {
super.onDestroy();
mapView.onDestroy();
}
private boolean checkPermissionAllGranted(String[] permissions) {
for (String permission : permissions) {
if (ActivityCompat.checkSelfPermission(this, permission) != PackageManager.PERMISSION_GRANTED) {
// 只要有一个权限没有被授予, 则直接返回 false
return false;
}
}
return true;
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
if (requestCode == 10000) {
boolean isAllGranted = true;
// 判断是否所有的权限都已经授予了
for (int grant : grantResults) {
if (grant != PackageManager.PERMISSION_GRANTED) {
isAllGranted = false;
break;
}
}
if (isAllGranted) {
// 如果所有的权限都授予了, 则执行备份代码
Log.d("GPS","执行");
getGPS();
} else {
// 弹出对话框告诉用户需要权限的原因, 并引导用户去应用权限管理中手动打开权限按钮
}
}
}
} 有问题，请多指教！！！！
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