1 /* 2 * Copyright (C) 2024 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.settings.notification; 18 19 import android.content.ContentResolver; 20 import android.content.Context; 21 import android.database.ContentObserver; 22 import android.net.Uri; 23 import android.os.Handler; 24 import android.os.Looper; 25 import android.provider.Settings; 26 27 import androidx.annotation.NonNull; 28 import androidx.annotation.Nullable; 29 import androidx.lifecycle.Lifecycle; 30 import androidx.lifecycle.LifecycleEventObserver; 31 import androidx.lifecycle.LifecycleOwner; 32 import androidx.preference.Preference; 33 import androidx.preference.PreferenceScreen; 34 35 import com.android.server.notification.Flags; 36 import com.android.settings.core.TogglePreferenceController; 37 38 public class LockScreenNotificationsGlobalPreferenceController 39 extends TogglePreferenceController 40 implements LifecycleEventObserver { 41 42 public static final int ON = 1; 43 public static final int OFF = 0; 44 private final ContentResolver mContentResolver; 45 private final ContentObserver mContentObserver; 46 @Nullable private Preference mPreference; 47 48 LockScreenNotificationsGlobalPreferenceController( @onNull Context context, @NonNull String preferenceKey )49 public LockScreenNotificationsGlobalPreferenceController( 50 @NonNull Context context, 51 @NonNull String preferenceKey 52 ) { 53 super(context, preferenceKey); 54 mContentResolver = context.getContentResolver(); 55 mContentObserver = new ContentObserver(new Handler(Looper.getMainLooper())) { 56 @Override 57 public void onChange(boolean selfChange, @Nullable Uri uri) { 58 if (mPreference == null) return; 59 updateState(mPreference); 60 } 61 }; 62 } 63 64 @Override displayPreference(@onNull PreferenceScreen screen)65 public void displayPreference(@NonNull PreferenceScreen screen) { 66 super.displayPreference(screen); 67 mPreference = screen.findPreference(getPreferenceKey()); 68 } 69 70 @Override updateState(@onNull Preference preference)71 public void updateState(@NonNull Preference preference) { 72 super.updateState(preference); 73 setChecked(lockScreenShowNotifications()); 74 } 75 76 @Override getAvailabilityStatus()77 public int getAvailabilityStatus() { 78 // TODO: b/367455695 - remove this when the feature flag is removed! 79 return Flags.notificationLockScreenSettings() ? AVAILABLE : CONDITIONALLY_UNAVAILABLE; 80 } 81 82 @Override isChecked()83 public boolean isChecked() { 84 return lockScreenShowNotifications(); 85 } 86 lockScreenShowNotifications()87 private boolean lockScreenShowNotifications() { 88 return Settings.Secure.getInt(mContext.getContentResolver(), 89 Settings.Secure.LOCK_SCREEN_SHOW_NOTIFICATIONS, OFF) == ON; 90 } 91 92 @Override setChecked(boolean isChecked)93 public boolean setChecked(boolean isChecked) { 94 return Settings.Secure.putInt(mContext.getContentResolver(), 95 Settings.Secure.LOCK_SCREEN_SHOW_NOTIFICATIONS, (isChecked ? ON : OFF)); 96 } 97 98 @Override getSliceHighlightMenuRes()99 public int getSliceHighlightMenuRes() { 100 // not needed since it's not sliceable 101 return NO_RES; 102 } 103 104 @Override onStateChanged(@onNull LifecycleOwner lifecycleOwner, @NonNull Lifecycle.Event event)105 public void onStateChanged(@NonNull LifecycleOwner lifecycleOwner, 106 @NonNull Lifecycle.Event event) { 107 if (event == Lifecycle.Event.ON_RESUME) { 108 mContentResolver.registerContentObserver( 109 Settings.Secure.getUriFor(Settings.Secure.LOCK_SCREEN_SHOW_NOTIFICATIONS), 110 /* notifyForDescendants= */ false, 111 mContentObserver 112 ); 113 } else { 114 mContentResolver.unregisterContentObserver(mContentObserver); 115 } 116 } 117 } 118