1 files changed, 107 insertions, 0 deletions
diff --git a/power_profile/gps_on/Application/src/main/java/com/example/android/powerprofile/gpson/GpsActivity.java b/power_profile/gps_on/Application/src/main/java/com/example/android/powerprofile/gpson/GpsActivity.java
new file mode 100644
index 00000000..ef68ad81
--- /dev/null
+++ b/power_profile/gps_on/Application/src/main/java/com/example/android/powerprofile/gpson/GpsActivity.java
@@ -0,0 +1,107 @@
+/*
+ * Copyright 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.powerprofile.gpson;
+
+import android.app.Activity;
+import android.content.Context;
+import android.content.pm.PackageManager;
+import android.location.Location;
+import android.location.LocationManager;
+import android.location.LocationListener;
+import android.os.Bundle;
+import android.support.v4.app.ActivityCompat;
+import android.support.v4.content.ContextCompat;
+import android.util.Log;
+
+public class GpsActivity extends Activity {
+
+    private static final int LOCATION_INTERVAL = 1000;
+    private static final float LOCATION_DISTANCE = 0f;
+    private static final int ACCESS_FINE_LOCATION_PERMISSION = 0;
+    private LocationManager mLocationManager;
+    private LocationListener mLocationListener;
+
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        int permissionsCheck = ContextCompat.checkSelfPermission(this,
+                android.Manifest.permission.ACCESS_FINE_LOCATION);
+
+        if (permissionsCheck != PackageManager.PERMISSION_GRANTED) {
+            ActivityCompat.requestPermissions(this,
+                    new String[]{android.Manifest.permission.ACCESS_FINE_LOCATION},
+                    ACCESS_FINE_LOCATION_PERMISSION);
+        }
+    }
+
+    @Override
+    public void onRequestPermissionsResult(int requestCode, String permissions[],
+                                           int[] grantResults) {
+        switch (requestCode) {
+            case ACCESS_FINE_LOCATION_PERMISSION: {
+                if (grantResults.length > 0
+                        && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
+
+                    initLocation();
+                }
+                break;
+            }
+        }
+    }
+
+    private void initLocation() {
+        mLocationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);
+
+        mLocationListener = new LocationListener() {
+            public void onLocationChanged(Location location) {}
+
+            public void onStatusChanged(String provider, int status, Bundle extras) {}
+
+            public void onProviderEnabled(String provider) {}
+
+            public void onProviderDisabled(String provider) {}
+        };
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+
+        if (mLocationManager == null || mLocationListener == null) {
+            return;
+        }
+
+        try {
+            mLocationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER,
+                    LOCATION_INTERVAL, LOCATION_DISTANCE, mLocationListener);
+        } catch (SecurityException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Override
+    protected void onPause() {
+        super.onPause();
+
+        if (mLocationManager == null || mLocationListener == null) {
+            return;
+        }
+
+        mLocationManager.removeUpdates(mLocationListener);
+    }
+
+}