Android Programming Tutorials

Posts On Location

android:versionName="1.0">

<uses-permission android:name="android.permission.INTERNET" />

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

<application android:label="@string/app_name">

<activity android:name=".Patchy"

android:label="@string/app_name">

<intent-filter>

<action android:name="android.intent.action.MAIN" />

<category android:name="android.intent.category.LAUNCHER" />

</intent-filter>

</activity>

<activity android:name=".EditPreferences">

</activity>

<service android:name=".PostMonitor" />

</application>

</manifest>

Then, add some imports to Patchy for location-related classes that we will

need:

import android.location.Location;

import android.location.LocationListener;

import android.location.LocationManager;

Next, add a LocationManager data member named locMgr in Patchy, then

initialize it in onCreate():

locMgr=(LocationManager)getSystemService(LOCATION_SERVICE);

At this point, we can start using the LocationManager for getting the location

to embed in the status update.

Step #2: Register for Location Updates

Next, we need to do something to cause Android to actually activate GPS

and get fixes. Just having access to LocationManager is insufficient. The

simplest answer is to register for location updates, even if we will use

another way to get our current fix, as you will see later in this tutorial.

So, add the following statement to onCreate() in Patchy, after you have

initialized locMgr as shown in the preceding section:

228