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Save GPS on/off state

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This commit is contained in:
Leith Bade
2015-02-23 12:05:18 -08:00
parent fd45302b80
commit 8cffa9d078
1 changed files with 37 additions and 10 deletions
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47
android/java/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxgl/testapp/MainActivity.java
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@@ -42,6 +42,9 @@ public class MainActivity extends ActionBarActivity {
// Tag used for logging
private static final String TAG = "MainActivity";
// Used for saving instance state
private static final String STATE_IS_GPS_ON = "isGpsOn";
//
// Instance members
//
@@ -52,9 +55,9 @@ public class MainActivity extends ActionBarActivity {
private ImageView mCompassView;
private FrameLayout mMapFrameLayout;
private float mDensity;
Spinner mClassSpinner;
ArrayAdapter mOutdoorsClassAdapter;
ArrayAdapter mSatelliteClassAdapter;
private Spinner mClassSpinner;
private ArrayAdapter mOutdoorsClassAdapter;
private ArrayAdapter mSatelliteClassAdapter;
// Used for GPS
private boolean mIsGpsOn = false;
@@ -63,6 +66,7 @@ public class MainActivity extends ActionBarActivity {
private LocationRequest mLocationRequest;
private ImageView mGpsMarker;
private Location mGpsLocation;
private MenuItem mGpsMenuItem;
//private boolean mLockGpsCenter = true;
//private boolean mLockGpsZoom = true;
@@ -89,6 +93,10 @@ public class MainActivity extends ActionBarActivity {
super.onCreate(savedInstanceState);
Log.v(TAG, "onCreate");
if (savedInstanceState != null) {
mIsGpsOn = savedInstanceState.getBoolean(STATE_IS_GPS_ON, false);
}
mDensity = getResources().getDisplayMetrics().density;
// Load the layout
@@ -169,6 +177,16 @@ public class MainActivity extends ActionBarActivity {
}
}
// Called when we need to save instance state
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
Log.v(TAG, "onSaveInstanceState");
outState.putBoolean(STATE_IS_GPS_ON, mIsGpsOn);
}
//
// Other events
//
@@ -178,6 +196,12 @@ public class MainActivity extends ActionBarActivity {
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu_main, menu);
mGpsMenuItem = menu.findItem(R.id.action_gps);
if (mIsGpsOn) {
mGpsMenuItem.setIcon(R.drawable.ic_action_location_found);
} else {
mGpsMenuItem.setIcon(R.drawable.ic_action_location_searching);
}
return super.onCreateOptionsMenu(menu);
}
@@ -190,17 +214,12 @@ public class MainActivity extends ActionBarActivity {
// TODO: how to persist this
if (mIsGpsOn) {
// Turn off
mIsGpsOn = false;
item.setIcon(R.drawable.ic_action_location_searching);
stopGps();
mGpsLocation = null;
mIsGpsOn = false;
} else {
// Turn on
mIsGpsOn = true;
item.setIcon(R.drawable.ic_action_location_found);
mGpsLocation = null;
startGps();
mIsGpsOn = true;
}
updateMap();
return true;
@@ -225,6 +244,10 @@ public class MainActivity extends ActionBarActivity {
// Turns the GPS location updates on
private void startGps() {
if (mGpsMenuItem != null) {
mGpsMenuItem.setIcon(R.drawable.ic_action_location_found);
}
mGpsLocation = null;
mLocationClient.connect();
updateLocation(LocationServices.FusedLocationApi.getLastLocation());
LocationServices.FusedLocationApi.requestLocationUpdates(mLocationRequest, new GpsListener());
@@ -234,10 +257,14 @@ public class MainActivity extends ActionBarActivity {
// Turns the GPS location updates off
private void stopGps() {
if (mGpsMenuItem != null) {
mGpsMenuItem.setIcon(R.drawable.ic_action_location_searching);
}
LocationServices.FusedLocationApi.removeLocationUpdates(mGpsListener);
mLocationClient.disconnect();
mSensorManager.unregisterListener(mCompassListener, mSensorAccelerometer);
mSensorManager.unregisterListener(mCompassListener, mSensorMagneticField);
mGpsLocation = null;
}
// This class forwards location updates to updateLocation()