forked from upstream-mirrors/OpenTracks
Jimmy Shih
84 lines
3.1 KiB
Java
84 lines
3.1 KiB
Java
/*
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* Copyright 2010 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not
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* use this file except in compliance with the License. You may obtain a copy of
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* the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations under
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* the License.
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*/
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package com.google.android.apps.mytracks;
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import com.google.android.apps.mytracks.util.ApiAdapterFactory;
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import com.google.android.maps.mytracks.R;
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import android.app.AlertDialog;
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import android.content.Context;
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import android.content.DialogInterface;
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import android.content.SharedPreferences;
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/**
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* Checks with the user if he prefers the metric units or the imperial units.
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*
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* @author Sandor Dornbush
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*/
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class CheckUnits {
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private static final String CHECK_UNITS_PREFERENCE_FILE = "checkunits";
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private static final String CHECK_UNITS_PREFERENCE_KEY = "checkunits.checked";
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private static boolean metric = true;
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public static void check(final Context context) {
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final SharedPreferences checkUnitsSharedPreferences = context.getSharedPreferences(
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CHECK_UNITS_PREFERENCE_FILE, Context.MODE_PRIVATE);
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if (checkUnitsSharedPreferences.getBoolean(CHECK_UNITS_PREFERENCE_KEY, false)) {
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return;
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}
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AlertDialog.Builder builder = new AlertDialog.Builder(context);
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builder.setTitle(context.getString(R.string.preferred_units_title));
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CharSequence[] items = { context.getString(R.string.preferred_units_metric),
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context.getString(R.string.preferred_units_imperial) };
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builder.setSingleChoiceItems(items, 0, new DialogInterface.OnClickListener() {
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@Override
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public void onClick(DialogInterface dialog, int which) {
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if (which == 0) {
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metric = true;
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} else {
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metric = false;
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}
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}
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});
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builder.setCancelable(true);
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builder.setPositiveButton(R.string.generic_ok, new DialogInterface.OnClickListener() {
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public void onClick(DialogInterface dialog, int which) {
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recordCheckPerformed(checkUnitsSharedPreferences);
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SharedPreferences useMetricPreferences = context.getSharedPreferences(
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Constants.SETTINGS_NAME, Context.MODE_PRIVATE);
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SharedPreferences.Editor editor = useMetricPreferences.edit();
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String key = context.getString(R.string.metric_units_key);
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ApiAdapterFactory.getApiAdapter().applyPreferenceChanges(editor.putBoolean(key, metric));
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}
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});
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builder.setOnCancelListener(new DialogInterface.OnCancelListener() {
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public void onCancel(DialogInterface dialog) {
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recordCheckPerformed(checkUnitsSharedPreferences);
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}
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});
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builder.show();
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}
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private static void recordCheckPerformed(SharedPreferences preferences) {
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ApiAdapterFactory.getApiAdapter().applyPreferenceChanges(
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preferences.edit().putBoolean(CHECK_UNITS_PREFERENCE_KEY, true));
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}
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private CheckUnits() {}
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}
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