Use a dialog fragment to show map layer

2014-01-16 14:03:12 -08:00
parent a4cf0518c4
commit 9f45405d89
8 changed files with 134 additions and 72 deletions
@@ -0,0 +1,71 @@
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * 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.google.android.apps.mytracks.fragments;
+
+import com.google.android.apps.mytracks.util.PreferencesUtils;
+import com.google.android.gms.maps.GoogleMap;
+import com.google.android.maps.mytracks.R;
+
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.content.DialogInterface;
+import android.content.DialogInterface.OnClickListener;
+
+/**
+ * A DialogFragment to select a map layer.
+ * 
+ * @author Jimmy Shih
+ */
+public class MapLayerDialogFragment extends AbstractMyTracksDialogFragment {
+
+  public static final String MAP_LAYER_DIALOG_TAG = "mapLayer";
+
+  private static final int[] LAYERS = { R.string.menu_map, R.string.menu_satellite,
+      R.string.menu_satellite_with_streets, R.string.menu_terrain };
+  private static final int[] MAP_TYPES = { GoogleMap.MAP_TYPE_NORMAL, GoogleMap.MAP_TYPE_SATELLITE,
+      GoogleMap.MAP_TYPE_HYBRID, GoogleMap.MAP_TYPE_TERRAIN };
+
+  @Override
+  protected Dialog createDialog() {
+    String[] choices = new String[LAYERS.length];
+    for (int i = 0; i < LAYERS.length; i++) {
+      choices[i] = getString(LAYERS[i]);
+    }
+
+    int mapType = PreferencesUtils.getInt(
+        getActivity(), R.string.map_type_key, PreferencesUtils.MAP_TYPE_DEFAUlT);
+
+    return new AlertDialog.Builder(getActivity()).setNegativeButton(R.string.generic_cancel, null)
+        .setPositiveButton(R.string.generic_ok, new OnClickListener() {
+            @Override
+          public void onClick(DialogInterface dialog, int which) {
+            int position = ((AlertDialog) dialog).getListView().getCheckedItemPosition();
+            PreferencesUtils.setInt(getActivity(), R.string.map_type_key, MAP_TYPES[position]);
+          }
+        }).setSingleChoiceItems(choices, getPositionFromMapType(mapType), null)
+        .setTitle(R.string.menu_map_layer).create();
+  }
+
+  private int getPositionFromMapType(int mapType) {
+    for (int i = 0; i < MAP_TYPES.length; i++) {
+      if (MAP_TYPES[i] == mapType) {
+        return i;
+      }
+    }
+    return 0;
+  }
+}