1 files changed, 60 insertions, 0 deletions
diff --git a/src/main/java/de/pixart/messenger/ui/LocationActivity.java b/src/main/java/de/pixart/messenger/ui/LocationActivity.java
new file mode 100644
index 000000000..74e2b45f9
--- /dev/null
+++ b/src/main/java/de/pixart/messenger/ui/LocationActivity.java
@@ -0,0 +1,60 @@
+package de.pixart.messenger.ui;
+
+import android.app.Activity;
+import android.content.Context;
+import android.location.Location;
+import android.location.LocationListener;
+import android.location.LocationManager;
+import android.os.Bundle;
+
+import de.pixart.messenger.Config;
+
+public abstract class LocationActivity extends Activity implements LocationListener {
+    private LocationManager locationManager;
+
+    @Override
+    protected void onCreate(final Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        this.locationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);
+    }
+
+    protected abstract void gotoLoc() throws UnsupportedOperationException;
+
+    protected abstract void setmLastLocation(final Location location);
+
+    protected void requestLocationUpdates() {
+        final Location lastKnownLocation = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
+        if (lastKnownLocation != null) {
+            setmLastLocation(lastKnownLocation);
+            try {
+                gotoLoc();
+            } catch (final UnsupportedOperationException ignored) {
+            }
+        }
+
+        locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, Config.LOCATION_FIX_TIME_DELTA, Config.LOCATION_FIX_SPACE_DELTA, this);
+        locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, Config.LOCATION_FIX_TIME_DELTA, Config.LOCATION_FIX_SPACE_DELTA, this);
+
+        // If something else is also querying for location more frequently than we are, the battery is already being
+        // drained. Go ahead and use the existing locations as often as we can get them.
+        locationManager.requestLocationUpdates(LocationManager.PASSIVE_PROVIDER, 0, 0, this);
+    }
+
+    protected void pauseLocationUpdates() {
+        locationManager.removeUpdates(this);
+    }
+
+    @Override
+    protected void onPause() {
+        super.onPause();
+        pauseLocationUpdates();
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+        this.setmLastLocation(null);
+
+        requestLocationUpdates();
+    }
+}
+\ No newline at end of file