package com.talkweb.mobileapp;
import java.text.DecimalFormat;
import android.app.Activity;
import android.content.Context;
import android.location.Criteria;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.TextView;
import android.widget.RadioGroup.OnCheckedChangeListener;
/**
*
* @author Mr.Z
* @time 2012-5-16
*
*/
public class LocationappActivity extends Activity {
private ImageButton btnGetBestLocationPro;
private EditText txtLat;
private EditText txtLon;
private TextView txtLocationPro;
private LocationManager locationManager;
private DecimalFormat format;
private String provider;
private RadioGroup providerGroup;
private RadioButton radGps;
private RadioButton radNetwork;
private String latStr;
private String lonStr;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.setContentView(R.layout.main);
btnGetBestLocationPro = (ImageButton) findViewById(R.id.bestLocationProId);
btnGetBestLocationPro.setOnClickListener(new GetBestLocationProListener());
txtLat = (EditText) findViewById(R.id.latEditTextId);
txtLon = (EditText) findViewById(R.id.lonEditTextId);
txtLocationPro = (TextView) findViewById(R.id.locationProId);
format = new DecimalFormat("#.000000");
locationManager = (LocationManager) LocationappActivity.this.getSystemService(Context.LOCATION_SERVICE);
Criteria criteria = new Criteria();
criteria.setAccuracy(Criteria.ACCURACY_FINE);
criteria.setPowerRequirement(Criteria.POWER_LOW);
criteria.setAltitudeRequired(false);
criteria.setSpeedRequired(false);
criteria.setCostAllowed(false);
provider = locationManager.getBestProvider(criteria, false);
txtLocationPro.setText(provider);
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, new TestLocationListener());
providerGroup = (RadioGroup) findViewById(R.id.providerGroup);
radGps = (RadioButton) findViewById(R.id.gpsProvide);
radNetwork = (RadioButton) findViewById(R.id.networkProvide);
providerGroup.setOnCheckedChangeListener(new LocationProvideCheckedlistener());
if (provider.equals(LocationManager.GPS_PROVIDER)) {
System.out.println("gps");
radGps.setSelected(true);
radGps.setChecked(true);
} else if (provider.equals(LocationManager.NETWORK_PROVIDER)) {
System.out.println("network");
radNetwork.setSelected(true);
radNetwork.setChecked(true);
}
}
private class GetBestLocationProListener implements OnClickListener {
@Override
public void onClick(View v) {
Criteria criteria = new Criteria();
criteria.setAccuracy(Criteria.ACCURACY_FINE);
criteria.setPowerRequirement(Criteria.POWER_LOW);
criteria.setAltitudeRequired(false);
criteria.setSpeedRequired(false);
criteria.setCostAllowed(false);
String provider = locationManager.getBestProvider(criteria, false);
txtLocationPro.setText(provider);
locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, new TestLocationListener());
}
}
private class TestLocationListener implements LocationListener {
@Override
public void onLocationChanged(Location location) {
double lat = location.getLatitude();
double lon = location.getLongitude();
latStr = format.format(lat);
lonStr = format.format(lon);
txtLat.setText(latStr);
txtLon.setText(lonStr);
}
@Override
public void onProviderDisabled(String provider) {
}
@Override
public void onProviderEnabled(String provider) {
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
}
}
private class LocationProvideCheckedlistener implements OnCheckedChangeListener {
@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
if (checkedId == radGps.getId()) {
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, new TestLocationListener());
} else if (checkedId == radNetwork.getId()) {
locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, new TestLocationListener());
}
}
}
}权限：
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