107 lines
3.5 KiB
Java
107 lines
3.5 KiB
Java
/*
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* Copyright (C) 2016 The CyanogenMod Project
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* Copyright (C) 2018-2024 The LineageOS Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of 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,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package lineageos.preference;
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import android.content.Context;
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import android.util.AttributeSet;
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import androidx.preference.PreferenceDataStore;
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import androidx.preference.PreferenceViewHolder;
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import androidx.preference.SwitchPreferenceCompat;
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/**
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* A SwitchPreferenceCompat which can automatically remove itself from the hierarchy
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* based on constraints set in XML.
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*/
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public abstract class SelfRemovingSwitchPreference extends SwitchPreferenceCompat {
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private final ConstraintsHelper mConstraints;
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public SelfRemovingSwitchPreference(Context context, AttributeSet attrs, int defStyle) {
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super(context, attrs, defStyle);
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mConstraints = new ConstraintsHelper(context, attrs, this);
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setPreferenceDataStore(new DataStore());
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}
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public SelfRemovingSwitchPreference(Context context, AttributeSet attrs) {
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super(context, attrs);
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mConstraints = new ConstraintsHelper(context, attrs, this);
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setPreferenceDataStore(new DataStore());
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}
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public SelfRemovingSwitchPreference(Context context) {
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super(context);
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mConstraints = new ConstraintsHelper(context, null, this);
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setPreferenceDataStore(new DataStore());
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}
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@Override
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public void onAttached() {
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super.onAttached();
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mConstraints.onAttached();
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}
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@Override
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public void onBindViewHolder(PreferenceViewHolder holder) {
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super.onBindViewHolder(holder);
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mConstraints.onBindViewHolder(holder);
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}
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public void setAvailable(boolean available) {
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mConstraints.setAvailable(available);
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}
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public boolean isAvailable() {
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return mConstraints.isAvailable();
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}
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protected abstract boolean isPersisted();
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protected abstract void putBoolean(String key, boolean value);
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protected abstract boolean getBoolean(String key, boolean defaultValue);
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@Override
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protected void onSetInitialValue(boolean restorePersistedValue, Object defaultValue) {
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final boolean checked;
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if (!restorePersistedValue || !isPersisted()) {
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if (defaultValue == null) {
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return;
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}
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checked = (boolean) defaultValue;
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if (shouldPersist()) {
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persistBoolean(checked);
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}
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} else {
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// Note: the default is not used because to have got here
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// isPersisted() must be true.
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checked = getBoolean(getKey(), false /* not used */);
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}
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setChecked(checked);
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}
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private class DataStore extends PreferenceDataStore {
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@Override
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public void putBoolean(String key, boolean value) {
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SelfRemovingSwitchPreference.this.putBoolean(key, value);
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}
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@Override
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public boolean getBoolean(String key, boolean defaultValue) {
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return SelfRemovingSwitchPreference.this.getBoolean(key, defaultValue);
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}
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}
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}
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