一步一步
第 1 步检查是否支持 GPS 设备
第 2 步有 GPS 设备真校验 MarshMallow Permimssion
第 3 步 MarshMallow Permimssion 真实检查位置是否已打开
第 4 步如果 Location 开启，则调用 Gps Tracker 并获取 Lat Long
第 5 步如果 Location of Off 则 CAll Location Dialog 与 Google Maps 相同
源代码
https://drive.google.com/open?id=0BzBKpZ4nzNzUMnVLTGpWcTk2QUE
添加依赖和 Internet 权限
编译'com.google.android.gms:play-services-location:8.4.0'
package com.keshav.locationenabledorcancelwithoutoutsideclick;
import android.Manifest;
import android.content.Context;
import android.content.Intent;
import android.content.IntentSender;
import android.content.pm.PackageManager;
import android.location.Address;
import android.location.Geocoder;
import android.location.LocationManager;
import android.os.Build;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.widget.Toast;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.common.api.PendingResult;
import com.google.android.gms.common.api.Result;
import com.google.android.gms.common.api.ResultCallback;
import com.google.android.gms.common.api.Status;
import com.google.android.gms.location.LocationRequest;
import com.google.android.gms.location.LocationServices;
import com.google.android.gms.location.LocationSettingsRequest;
import com.google.android.gms.location.LocationSettingsStatusCodes;
import com.keshav.locationenabledorcancelwithoutoutsideclick.gps.GPSTracker;
import java.io.IOException;
import java.util.List;
import java.util.Locale;
public class LocSettingsActivity extends AppCompatActivity implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener, ResultCallback {
protected GoogleApiClient mGoogleApiClient;
protected LocationRequest locationRequest;
int REQUEST_CHECK_SETTINGS = 100;
GPSTracker gps;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//Step 1
checkPermission();
}
@Override
public void onConnected(@Nullable Bundle bundle) {
LocationSettingsRequest.Builder builder = new LocationSettingsRequest.Builder()
.addLocationRequest(locationRequest);
builder.setAlwaysShow(true);
PendingResult result =
LocationServices.SettingsApi.checkLocationSettings(
mGoogleApiClient,
builder.build()
);
result.setResultCallback(this);
}
@Override
public void onConnectionSuspended(int i) {
}
@Override
public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
}
@Override
// public void onResult(@NonNull LocationSettingsResult locationSettingsResult) {
public void onResult(@NonNull Result locationSettingsResult) {
final Status status = locationSettingsResult.getStatus();
switch (status.getStatusCode()) {
case LocationSettingsStatusCodes.SUCCESS:
// NO need to show the dialog;
break;
case LocationSettingsStatusCodes.RESOLUTION_REQUIRED:
// Location settings are not satisfied. Show the user a dialog
try {
// Show the dialog by calling startResolutionForResult(), and check the result
// in onActivityResult().
status.startResolutionForResult(LocSettingsActivity.this, REQUEST_CHECK_SETTINGS);
} catch (IntentSender.SendIntentException e) {
//failed to show
}
break;
case LocationSettingsStatusCodes.SETTINGS_CHANGE_UNAVAILABLE:
// Location settings are unavailable so not possible to show any dialog now
break;
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == REQUEST_CHECK_SETTINGS) {
if (resultCode == RESULT_OK) {
Toast.makeText(getApplicationContext(), "GPS enabled", Toast.LENGTH_LONG).show();
Log.e("Keshav", "..........GPS enabled..............");
//TODO Important When Gps Enable Just Now Need Some Time ..........otherwise lat long 0.0 fetch
// TODO Need Some time to call GPS Tracker Service
new Thread(new Runnable() {
@Override
public void run() {
try {
Thread.sleep(2000); //Todo dummy delay for 2 second
} catch (InterruptedException e) {
e.printStackTrace();
}
//update ui on UI thread
runOnUiThread(new Runnable() {
@Override
public void run() {
callLocationGpsTracker();
}
});
}
}).start();
} else {
callLocationDialog();
Log.e("Keshav", "..........GPS not enabled..............");
Toast.makeText(getApplicationContext(), "GPS is not enabled", Toast.LENGTH_LONG).show();
}
}
}
@Override
public void onPointerCaptureChanged(boolean hasCapture) {
}
private void checkPermission(){
if (!hasGPSDevice(LocSettingsActivity.this)) {
Log.e("keshav", "Gps not Supported");
Toast.makeText(LocSettingsActivity.this, "Gps not Supported", Toast.LENGTH_SHORT).show();
} else {
Log.e("keshav", "Gps Supported ---hasGPSDevice return true--Step 1 Pass...........");
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
int permissionCheck = ContextCompat.checkSelfPermission(LocSettingsActivity.this,
Manifest.permission.CAMERA);
if (permissionCheck == PackageManager.PERMISSION_GRANTED) {
Log.e("permission", "granted");
locationEnabled_or_Not();
} else {
ActivityCompat.requestPermissions(LocSettingsActivity.this,
new String[]{Manifest.permission.CAMERA,
Manifest.permission.READ_EXTERNAL_STORAGE,
Manifest.permission.WRITE_EXTERNAL_STORAGE,
Manifest.permission.ACCESS_FINE_LOCATION,
Manifest.permission.ACCESS_COARSE_LOCATION,}, 1);
}
} else {
Log.e("MainActivity", "Lower Than MarshMallow");
locationEnabled_or_Not();
}
}
}
//TODO Step 1
public boolean hasGPSDevice(Context context) {
final LocationManager mgr = (LocationManager) context
.getSystemService(Context.LOCATION_SERVICE);
if (mgr == null)
return false;
final List<String> providers = mgr.getAllProviders();
if (providers == null)
return false;
return providers.contains(LocationManager.GPS_PROVIDER);
}
//TODO Step 2
// TODO When Location not enabled show popup
// TODO When Location already Enabled CAll GPS Tracker
private void locationEnabled_or_Not() {
Log.e("keshav", "locationEnabled_or_Not Step 2 Pass...........");
final LocationManager manager = (LocationManager) LocSettingsActivity.this.getSystemService(Context.LOCATION_SERVICE);
if (!manager.isProviderEnabled(LocationManager.GPS_PROVIDER) && hasGPSDevice(LocSettingsActivity.this)) {
Log.e("keshav", "Gps not enabled");
callLocationDialog();
} else {
Log.e("keshav", "Gps already enabled");
callLocationGpsTracker(); // TODO When Gps already enabled call direct GPS Tracker
}
}
//TODO Step 3 when hasGPSDevice return true
private void callLocationDialog() {
Log.e("keshav", "callLocationDialog Step 3 Popup called ...........");
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addApi(LocationServices.API)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this).build();
mGoogleApiClient.connect();
locationRequest = LocationRequest.create();
locationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
locationRequest.setInterval(30 * 1000);
locationRequest.setFastestInterval(5 * 1000);
}
//TODO Step 4 when location on fetch GPS Tracker Through Latitude Longitude
private void callLocationGpsTracker() {
Log.e("keshav", "callLocationGpsTracker Step 4 Called ... fetch Location");
gps = new GPSTracker(LocSettingsActivity.this);
// check if GPS enabled
if (gps.canGetLocation()) {
double latitude = gps.getLatitude();
double longitude = gps.getLongitude();
Log.e("MainActivity", "latitude -> " + latitude);
Log.e("MainActivity", "longitude -> " + longitude);
getAddress(latitude, longitude);
// LocationAddress locationAddress = new LocationAddress();
// locationAddress.getAddressFromLocation(latitude, longitude,
// getApplicationContext(), new GeocoderHandler());
} else {
// TODO can't get location
// TODO GPS or Network is not enabled
// TODO Ask user to enable GPS/network in settings
//TODO need again call Locaton Dialog
callLocationDialog();
}
}
private void getAddress(double lat, double lon) {
String cityName = "";
String stateName = "";
String postalCode = "";
String countryName = "";
StringBuilder finalAddress = new StringBuilder();
try {
Geocoder geocoder = new Geocoder(LocSettingsActivity.this, Locale.getDefault());
List<Address> addresses = geocoder.getFromLocation(lat, lon, 1);
if (addresses != null) {
try {
cityName = addresses.get(0).getLocality();
stateName = addresses.get(0).getAdminArea();
countryName = addresses.get(0).getCountryName();
postalCode = addresses.get(0).getPostalCode();
if (addresses.get(0).getAddressLine(0) != null)
finalAddress.append(addresses.get(0).getAddressLine(0));
if (addresses.get(0).getAddressLine(1) != null)
finalAddress.append(" " + addresses.get(0).getAddressLine(1));
if (addresses.get(0).getAddressLine(2) != null)
finalAddress.append(" " + addresses.get(0).getAddressLine(2));
if (addresses.get(0).getAddressLine(3) != null)
finalAddress.append(" " + addresses.get(0).getAddressLine(3));
Log.e("keshav", "addres 0 -> " + addresses.get(0).getAddressLine(0));
Log.e("keshav", "addres 1 -> " + addresses.get(0).getAddressLine(1));
Log.e("keshav", "addres 2 -> " + addresses.get(0).getAddressLine(2));
Log.e("keshav", "addres 3 -> " + addresses.get(0).getAddressLine(3));
Log.e("keshav", "addres final -> " + finalAddress);
} catch (Exception e) {
Log.e("keshav", "Exception occurd -> " + e.getMessage());
e.printStackTrace();
}
Log.e("keshav", "cityName -> " + cityName);
Log.e("keshav", "stateName -> " + stateName);
Log.e("keshav", "countryName -> " + countryName);
Log.e("keshav", "PostalCode -> " + postalCode);
}
} catch (IOException e) {
e.printStackTrace();
}
}
@Override
protected void onResume() {
super.onResume();
checkPermission();
}
}
===============================GPSTracker===================================
package com.keshav.locationenabledorcancelwithoutoutsideclick.gps;
import android.app.AlertDialog;
import android.app.Service;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.os.IBinder;
import android.provider.Settings;
import android.util.Log;
public class GPSTracker extends Service implements LocationListener {
private final Context mContext;
// flag for GPS status
boolean isGPSEnabled = false;
// flag for network status
boolean isNetworkEnabled = false;
// flag for GPS status
boolean canGetLocation = false;
Location location; // location
double latitude; // latitude
double longitude; // longitude
// The minimum distance to change Updates in meters
private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES = 10; // 10 meters
// The minimum time between updates in milliseconds
private static final long MIN_TIME_BW_UPDATES = 1000 * 60 * 1; // 1 minute
// Declaring a Location Manager
protected LocationManager locationManager;
public GPSTracker(Context context) {
this.mContext = context;
getLocation();
}
public Location getLocation() {
try {
locationManager = (LocationManager) mContext.getSystemService(LOCATION_SERVICE);
// getting GPS status
isGPSEnabled = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
// getting network status
isNetworkEnabled = locationManager
.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
if (!isGPSEnabled && !isNetworkEnabled) {
// no network provider is enabled
} else {
this.canGetLocation = true;
// First get location from Network Provider
if (isNetworkEnabled) {
locationManager.requestLocationUpdates(
LocationManager.NETWORK_PROVIDER,
MIN_TIME_BW_UPDATES,
MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
Log.d("Network", "Network");
if (locationManager != null) {
location = locationManager
.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
if (location != null) {
latitude = location.getLatitude();
longitude = location.getLongitude();
}
}
}
// if GPS Enabled get lat/long using GPS Services
if (isGPSEnabled) {
if (location == null) {
locationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER,
MIN_TIME_BW_UPDATES,
MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
Log.d("GPS Enabled", "GPS Enabled");
if (locationManager != null) {
location = locationManager
.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if (location != null) {
latitude = location.getLatitude();
longitude = location.getLongitude();
}
}
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
return location;
}
/**
* Stop using GPS listener
* Calling this function will stop using GPS in your app
*/
public void stopUsingGPS() {
if (locationManager != null) {
locationManager.removeUpdates(GPSTracker.this);
}
}
/**
* Function to get latitude
*/
public double getLatitude() {
if (location != null) {
latitude = location.getLatitude();
}
// return latitude
return latitude;
}
/**
* Function to get longitude
*/
public double getLongitude() {
if (location != null) {
longitude = location.getLongitude();
}
// return longitude
return longitude;
}
/**
* Function to check GPS/wifi enabled
*
* @return boolean
*/
public boolean canGetLocation() {
return this.canGetLocation;
}
/**
* Function to show settings alert dialog
* On pressing Settings button will lauch Settings Options
*/
public void showSettingsAlert() {
AlertDialog.Builder alertDialog = new AlertDialog.Builder(mContext);
// Setting Dialog Title
alertDialog.setTitle("GPS is settings");
// Setting Dialog Message
alertDialog.setMessage("GPS is not enabled. Do you want to go to settings menu?");
// On pressing Settings button
alertDialog.setPositiveButton("Settings", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
mContext.startActivity(intent);
}
});
// on pressing cancel button
alertDialog.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});
// Showing Alert Message
alertDialog.show();
}
@Override
public void onLocationChanged(Location location) {
}
@Override
public void onProviderDisabled(String provider) {
}
@Override
public void onProviderEnabled(String provider) {
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
}
@Override
public IBinder onBind(Intent arg0) {
return null;
}
}
源代码
https://drive.google.com/open?id=0BzBKpZ4nzNzUMnVLTGpWcTk2QUE