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/*
* Copyright (C) 2013 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.android.settings.location;
import android.app.Activity;
import android.content.Intent;
import android.preference.PreferenceActivity;
import android.preference.PreferenceScreen;
import android.provider.Settings;
import com.android.settings.R;
/**
* A page with 3 radio buttons to choose the location mode.
*
* There are 3 location modes when location access is enabled:
*
* High accuracy: use both GPS and network location.
*
* Battery saving: use network location only to reduce the power consumption.
*
* Sensors only: use GPS location only.
*/
public class LocationMode extends LocationSettingsBase
implements RadioButtonPreference.OnClickListener {
private static final String KEY_HIGH_ACCURACY = "high_accuracy";
private RadioButtonPreference mHighAccuracy;
private static final String KEY_BATTERY_SAVING = "battery_saving";
private RadioButtonPreference mBatterySaving;
private static final String KEY_SENSORS_ONLY = "sensors_only";
private RadioButtonPreference mSensorsOnly;
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
createPreferenceHierarchy();
}
@Override
public void onResume() {
super.onResume();
createPreferenceHierarchy();
}
@Override
public void onPause() {
super.onPause();
}
private PreferenceScreen createPreferenceHierarchy() {
PreferenceScreen root = getPreferenceScreen();
if (root != null) {
root.removeAll();
}
addPreferencesFromResource(R.xml.location_mode);
root = getPreferenceScreen();
mHighAccuracy = (RadioButtonPreference) root.findPreference(KEY_HIGH_ACCURACY);
mBatterySaving = (RadioButtonPreference) root.findPreference(KEY_BATTERY_SAVING);
mSensorsOnly = (RadioButtonPreference) root.findPreference(KEY_SENSORS_ONLY);
mHighAccuracy.setOnClickListener(this);
mBatterySaving.setOnClickListener(this);
mSensorsOnly.setOnClickListener(this);
refreshLocationMode();
return root;
}
private void updateRadioButtons(RadioButtonPreference activated) {
if (activated == mHighAccuracy) {
mHighAccuracy.setChecked(true);
mBatterySaving.setChecked(false);
mSensorsOnly.setChecked(false);
} else if (activated == mBatterySaving) {
mHighAccuracy.setChecked(false);
mBatterySaving.setChecked(true);
mSensorsOnly.setChecked(false);
} else if (activated == mSensorsOnly) {
mHighAccuracy.setChecked(false);
mBatterySaving.setChecked(false);
mSensorsOnly.setChecked(true);
}
}
@Override
public void onRadioButtonClicked(RadioButtonPreference emiter) {
int mode = Settings.Secure.LOCATION_MODE_OFF;
if (emiter == mHighAccuracy) {
mode = Settings.Secure.LOCATION_MODE_HIGH_ACCURACY;
} else if (emiter == mBatterySaving) {
mode = Settings.Secure.LOCATION_MODE_BATTERY_SAVING;
} else if (emiter == mSensorsOnly) {
mode = Settings.Secure.LOCATION_MODE_SENSORS_ONLY;
}
setLocationMode(mode);
}
@Override
public void onModeChanged(int mode, boolean restricted) {
switch (mode) {
case Settings.Secure.LOCATION_MODE_OFF:
Intent intent = new Intent();
PreferenceActivity pa = (PreferenceActivity) getActivity();
pa.finishPreferencePanel(LocationMode.this, Activity.RESULT_OK, intent);
break;
case Settings.Secure.LOCATION_MODE_SENSORS_ONLY:
updateRadioButtons(mSensorsOnly);
break;
case Settings.Secure.LOCATION_MODE_BATTERY_SAVING:
updateRadioButtons(mBatterySaving);
break;
case Settings.Secure.LOCATION_MODE_HIGH_ACCURACY:
updateRadioButtons(mHighAccuracy);
break;
default:
break;
}
boolean enabled = (mode != Settings.Secure.LOCATION_MODE_OFF) && !restricted;
mHighAccuracy.setEnabled(enabled);
mBatterySaving.setEnabled(enabled);
mSensorsOnly.setEnabled(enabled);
}
@Override
public int getHelpResource() {
return R.string.help_url_location_access;
}
}
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