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Use LOST for GPS

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This commit is contained in:
Leith Bade
2015-01-21 12:06:11 +11:00
parent 5feba9ac07
commit fe2dae7af1
9 changed files with 81 additions and 52 deletions
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1
android/java/app/build.gradle
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@@ -53,4 +53,5 @@ dependencies {
compile 'com.android.support:support-annotations:21.0.0'
compile 'com.android.support:support-v4:21.0.3'
compile 'com.android.support:appcompat-v7:21.0.3'
compile 'com.mapzen.android:lost:0.2'
}

115
android/java/app/src/main/java/com/mapbox/mapboxgl/app/MainActivity.java
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@@ -1,14 +1,6 @@
package com.mapbox.mapboxgl.app;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.location.Criteria;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.widget.Toolbar;
@@ -22,9 +14,13 @@ import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;
import com.mapbox.mapboxgl.lib.LonLatZoom;
import com.mapbox.mapboxgl.lib.MapView;
import com.mapzen.android.lost.LocationClient;
import com.mapzen.android.lost.LocationListener;
import com.mapzen.android.lost.LocationRequest;
public class MainActivity extends ActionBarActivity {
@@ -35,9 +31,6 @@ public class MainActivity extends ActionBarActivity {
// Tag used for logging
private static final String TAG = "MainActivity";
// Used for GPS
private static final String SINGLE_LOCATION_UPDATE_ACTION = "com.mapbox.mapboxgl.app.SINGLE_LOCATION_UPDATE_ACTION";
//
// Instance members
//
@@ -52,9 +45,10 @@ public class MainActivity extends ActionBarActivity {
private ImageView mCompassView;
// Used for GPS
private LocationManager mLocationManager;
private PendingIntent mLocationPendingIntent;
private LocationReceiver mLocationReceiver;
private boolean mIsGpsOn = false;
private LocationClient mLocationClient;
private LocationListener mLocationListener;
private LocationRequest mLocationRequest;
//
// Lifecycle events
@@ -66,10 +60,6 @@ public class MainActivity extends ActionBarActivity {
super.onCreate(savedInstanceState);
Log.v(TAG, "onCreate");
Intent locationIntent = new Intent(SINGLE_LOCATION_UPDATE_ACTION);
mLocationManager = (LocationManager)getSystemService(getApplicationContext().LOCATION_SERVICE);
mLocationPendingIntent = PendingIntent.getBroadcast(getApplicationContext(), 0, locationIntent, PendingIntent.FLAG_UPDATE_CURRENT);
// Load the layout
setContentView(R.layout.activity_main);
mMapFragment = (MapFragment)getSupportFragmentManager().findFragmentById(R.id.fragment_map);
@@ -93,6 +83,33 @@ public class MainActivity extends ActionBarActivity {
R.array.style_list, android.R.layout.simple_spinner_dropdown_item);
styleSpinner.setAdapter(styleAdapter);
styleSpinner.setOnItemSelectedListener(new StyleSpinnerListener());
// Prepare for GPS
mLocationRequest = LocationRequest.create();
mLocationRequest.setInterval(0);
mLocationRequest.setSmallestDisplacement(0);
mLocationClient = new LocationClient(getApplicationContext(), new LocationClient.ConnectionCallbacks() {
@Override
public void onConnected(Bundle connectionHint) {
updateLocation(mLocationClient.getLastLocation());
mLocationListener = new LocationListener() {
@Override
public void onLocationChanged(Location location) {
//Toast.makeText(getApplicationContext(), "Location: " + location.toString(), Toast.LENGTH_SHORT).show();
updateLocation(location);
}
};
mLocationClient.requestLocationUpdates(mLocationRequest, mLocationListener);
}
@Override
public void onDisconnected() {
mLocationListener = null;
}
});
}
// Called when our app goes into the background
@@ -101,13 +118,23 @@ public class MainActivity extends ActionBarActivity {
super.onPause();
Log.v(TAG, "onPause");
// Cancel any outstanding GPS
if (mLocationReceiver != null) {
getApplicationContext().unregisterReceiver(mLocationReceiver);
mLocationReceiver = null;
// Cancel GPS
if (mIsGpsOn) {
mLocationClient.disconnect();
}
}
mLocationManager.removeUpdates(mLocationPendingIntent);
// Called when our app comes into the foreground
@Override
public void onResume() {
super.onResume();
Log.v(TAG, "onResume");
// Restart GPS
// Cancel any outstanding GPS
if (mIsGpsOn) {
mLocationClient.connect();
}
}
//
@@ -127,19 +154,17 @@ public class MainActivity extends ActionBarActivity {
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.action_gps:
// Get a GPS position
Criteria criteria = new Criteria();
criteria.setAccuracy(Criteria.ACCURACY_LOW);
String provider = mLocationManager.getBestProvider(criteria, true);
Location location = mLocationManager.getLastKnownLocation(provider);
if (location != null) {
LonLatZoom coordinate = new LonLatZoom(location.getLongitude(), location.getLatitude(), 15);
mMapFragment.getMap().setCenterCoordinate(coordinate, true);
// Toggle GPS position updates
if (mIsGpsOn) {
mIsGpsOn = false;
item.setIcon(R.drawable.ic_action_location_searching);
mLocationClient.disconnect();
} else {
mIsGpsOn = true;
item.setIcon(R.drawable.ic_action_location_found);
mLocationClient.connect();
}
IntentFilter locationIntentFilter = new IntentFilter(SINGLE_LOCATION_UPDATE_ACTION);
mLocationReceiver = new LocationReceiver();
getApplicationContext().registerReceiver(mLocationReceiver, locationIntentFilter);
mLocationManager.requestSingleUpdate(provider, mLocationPendingIntent);
return true;
case R.id.action_debug:
@@ -160,21 +185,11 @@ public class MainActivity extends ActionBarActivity {
}
}
// This class handles location events
private class LocationReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
context.unregisterReceiver(this);
Location location = (Location)intent.getExtras().get(LocationManager.KEY_LOCATION_CHANGED);
if (location != null) {
LonLatZoom coordinate = new LonLatZoom(location.getLongitude(), location.getLatitude(), 15);
mMapFragment.getMap().setCenterCoordinate(coordinate, true);
}
mLocationManager.removeUpdates(mLocationPendingIntent);
mLocationReceiver = null;
// Handles location updates from GPS
private void updateLocation(Location location) {
if (location != null) {
LonLatZoom coordinate = new LonLatZoom(location.getLongitude(), location.getLatitude(), 16);
mMapFragment.getMap().setCenterCoordinate(coordinate, true);
}
}

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2
android/java/app/src/main/res/menu/menu_main.xml
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@@ -1,7 +1,7 @@
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto">
<item android:id="@+id/action_gps"
android:icon="@drawable/ic_action_location_found"
android:icon="@drawable/ic_action_location_searching"
android:title="@string/action_gps"
app:showAsAction="ifRoom" />
<item android:id="@+id/action_debug"

2
android/java/app/src/main/res/values/strings.xml
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@@ -3,7 +3,7 @@
<string name="app_name">Mapbox GL</string>
<string name="action_gps">Go to GPS location</string>
<string name="action_gps">Toggle GPS location</string>
<string name="action_debug">Toggle debug mode</string>