/* * Copyright (C) 2016 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.gestures; import android.content.Context; import android.content.res.Resources; import android.hardware.Sensor; import android.hardware.SensorManager; import android.provider.Settings; import android.support.v7.preference.Preference; import android.support.v7.preference.TwoStatePreference; import android.text.TextUtils; import com.android.settings.R; import com.android.settings.core.PreferenceController; public class DoubleTwistPreferenceController extends PreferenceController implements Preference.OnPreferenceChangeListener { private static final String PREF_KEY_DOUBLE_TWIST = "gesture_double_twist"; public DoubleTwistPreferenceController(Context context) { super(context); } @Override public boolean isAvailable() { return hasSensor(R.string.gesture_double_twist_sensor_name, R.string.gesture_double_twist_sensor_vendor); } @Override public void updateState(Preference preference) { final boolean isEnabled = isDoubleTwistEnabled(); if (preference != null) { if (preference instanceof TwoStatePreference) { ((TwoStatePreference) preference).setChecked(isEnabled); } else { preference.setSummary(isEnabled ? com.android.settings.R.string.gesture_setting_on : com.android.settings.R.string.gesture_setting_off); } } } @Override public boolean handlePreferenceTreeClick(Preference preference) { return false; } @Override public String getPreferenceKey() { return PREF_KEY_DOUBLE_TWIST; } private boolean isDoubleTwistEnabled() { final int doubleTwistEnabled = Settings.Secure.getInt(mContext.getContentResolver(), Settings.Secure.CAMERA_DOUBLE_TWIST_TO_FLIP_ENABLED, 1); return doubleTwistEnabled != 0; } private boolean hasSensor(int nameResId, int vendorResId) { final Resources resources = mContext.getResources(); final String name = resources.getString(nameResId); final String vendor = resources.getString(vendorResId); if (!TextUtils.isEmpty(name) && !TextUtils.isEmpty(vendor)) { final SensorManager sensorManager = (SensorManager) mContext.getSystemService(Context.SENSOR_SERVICE); for (Sensor s : sensorManager.getSensorList(Sensor.TYPE_ALL)) { if (name.equals(s.getName()) && vendor.equals(s.getVendor())) { return true; } } } return false; } @Override public boolean onPreferenceChange(Preference preference, Object newValue) { final boolean enabled = (boolean) newValue; Settings.Secure.putInt(mContext.getContentResolver(), Settings.Secure.CAMERA_DOUBLE_TWIST_TO_FLIP_ENABLED, enabled ? 1 : 0); return true; } }