Doc bug B9297954: Fixes to Location APIs (5b4438eb) · Commits · e / os / android_frameworks_base

docs/html/training/location/receive-location-updates.jd

+21 −4

Original line number	Diff line number	Diff line
		@@ -417,7 +417,7 @@ public class MainActivity extends FragmentActivity implements
		public static final int UPDATE_INTERVAL_IN_SECONDS = 5;
		// Update frequency in milliseconds
		private static final long UPDATE_INTERVAL =
		MILLISECONDS_PER_SECOND * UPDATE_INTERVAL_IN SECONDS;
		MILLISECONDS_PER_SECOND * UPDATE_INTERVAL_IN_SECONDS;
		// The fastest update frequency, in seconds
		private static final int FASTEST_INTERVAL_IN_SECONDS = 1;
		// A fast frequency ceiling in milliseconds
		@@ -425,7 +425,7 @@ public class MainActivity extends FragmentActivity implements
		MILLISECONDS_PER_SECOND * FASTEST_INTERVAL_IN_SECONDS;
		...
		// Define an object that holds accuracy and frequency parameters
		LocationResult mLocationRequest;
		LocationRequest mLocationRequest;
		...
		@Override
		protected void onCreate(Bundle savedInstanceState) {
		@@ -458,9 +458,11 @@ public class MainActivity extends FragmentActivity implements
		the request by calling
		<code><a href="{@docRoot}reference/com/google/android/gms/location/LocationClient.html#requestLocationUpdates(com.google.android.gms.location.LocationRequest, com.google.android.gms.location.LocationListener)">requestLocationUpdates()</a></code>.
		Since your client must be connected for your app to receive updates, you should
		connect the client and make the request in
		connect the client in
		{@link android.support.v4.app.FragmentActivity#onStart onStart()}. This ensures that you always
		have a valid, connected client while your app is visible.
		have a valid, connected client while your app is visible. Since you need a connection before you
		can request updates, make the update request in
		<code><a href="{@docRoot}reference/com/google/android/gms/common/GooglePlayServicesClient.ConnectionCallbacks.html#onConnected(android.os.Bundle)">ConnectionCallbacks.onConnected()</a></code>
		</p>
		<p>
		Remember that the user may want to turn off location updates for various reasons. You should
		@@ -536,6 +538,21 @@ public class MainActivity extends FragmentActivity implements
		}
		}
		...
		/*
		* Called by Location Services when the request to connect the
		* client finishes successfully. At this point, you can
		* request the current location or start periodic updates
		*/
		@Override
		public void onConnected(Bundle dataBundle) {
		// Display the connection status
		Toast.makeText(this, "Connected", Toast.LENGTH_SHORT).show();
		// If already requested, start periodic updates
		if (mUpdatesRequested) {
		mLocationClient.requestLocationUpdates(mLocationRequest, this);
		}
		}
		...
		}
		</pre>
		<p>