| /* |
| * Copyright (C) 2018 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.accessibility; |
| |
| import android.content.Context; |
| import android.database.ContentObserver; |
| import android.net.Uri; |
| import android.os.Handler; |
| import android.os.Looper; |
| import android.os.Vibrator; |
| import android.provider.Settings; |
| |
| import androidx.preference.Preference; |
| import androidx.preference.PreferenceScreen; |
| |
| import com.android.settings.R; |
| import com.android.settings.core.BasePreferenceController; |
| import com.android.settingslib.core.lifecycle.LifecycleObserver; |
| import com.android.settingslib.core.lifecycle.events.OnStart; |
| import com.android.settingslib.core.lifecycle.events.OnStop; |
| |
| public abstract class VibrationIntensityPreferenceController extends BasePreferenceController |
| implements LifecycleObserver, OnStart, OnStop { |
| |
| protected final Vibrator mVibrator; |
| private final SettingObserver mSettingsContentObserver; |
| private final String mSettingKey; |
| private final String mEnabledKey; |
| private final boolean mSupportRampingRinger; |
| |
| private Preference mPreference; |
| |
| public VibrationIntensityPreferenceController(Context context, String prefkey, |
| String settingKey, String enabledKey, boolean supportRampingRinger) { |
| super(context, prefkey); |
| mVibrator = mContext.getSystemService(Vibrator.class); |
| mSettingKey = settingKey; |
| mEnabledKey = enabledKey; |
| mSupportRampingRinger= supportRampingRinger; |
| mSettingsContentObserver = new SettingObserver(settingKey) { |
| @Override |
| public void onChange(boolean selfChange, Uri uri) { |
| updateState(mPreference); |
| } |
| }; |
| } |
| |
| public VibrationIntensityPreferenceController(Context context, String prefkey, |
| String settingKey, String enabledKey) { |
| this(context, prefkey, settingKey, enabledKey, /* supportRampingRinger= */ false); |
| } |
| |
| @Override |
| public void onStart() { |
| mContext.getContentResolver().registerContentObserver( |
| mSettingsContentObserver.uri, |
| false /* notifyForDescendants */, |
| mSettingsContentObserver); |
| } |
| |
| @Override |
| public void onStop() { |
| mContext.getContentResolver().unregisterContentObserver(mSettingsContentObserver); |
| } |
| |
| @Override |
| public void displayPreference(PreferenceScreen screen) { |
| super.displayPreference(screen); |
| mPreference = screen.findPreference(getPreferenceKey()); |
| } |
| |
| @Override |
| public CharSequence getSummary() { |
| final int intensity = Settings.System.getInt(mContext.getContentResolver(), |
| mSettingKey, getDefaultIntensity()); |
| final boolean enabled = (Settings.System.getInt(mContext.getContentResolver(), |
| mEnabledKey, 1) == 1) || |
| (mSupportRampingRinger && AccessibilitySettings.isRampingRingerEnabled(mContext)); |
| return getIntensityString(mContext, enabled ? intensity : Vibrator.VIBRATION_INTENSITY_OFF); |
| } |
| |
| public static CharSequence getIntensityString(Context context, int intensity) { |
| final boolean supportsMultipleIntensities = context.getResources().getBoolean( |
| R.bool.config_vibration_supports_multiple_intensities); |
| if (supportsMultipleIntensities) { |
| switch (intensity) { |
| case Vibrator.VIBRATION_INTENSITY_OFF: |
| return context.getString(R.string.accessibility_vibration_intensity_off); |
| case Vibrator.VIBRATION_INTENSITY_LOW: |
| return context.getString(R.string.accessibility_vibration_intensity_low); |
| case Vibrator.VIBRATION_INTENSITY_MEDIUM: |
| return context.getString(R.string.accessibility_vibration_intensity_medium); |
| case Vibrator.VIBRATION_INTENSITY_HIGH: |
| return context.getString(R.string.accessibility_vibration_intensity_high); |
| default: |
| return ""; |
| } |
| } else { |
| if (intensity == Vibrator.VIBRATION_INTENSITY_OFF) { |
| return context.getString(R.string.switch_off_text); |
| } else { |
| return context.getString(R.string.switch_on_text); |
| } |
| } |
| } |
| |
| protected abstract int getDefaultIntensity(); |
| |
| private static class SettingObserver extends ContentObserver { |
| |
| public final Uri uri; |
| |
| public SettingObserver(String settingKey) { |
| super(new Handler(Looper.getMainLooper())); |
| uri = Settings.System.getUriFor(settingKey); |
| } |
| } |
| } |