1 /* 2 * Copyright (C) 2018 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.car.settings.common; 18 19 import android.content.Context; 20 import android.util.AttributeSet; 21 import android.view.View; 22 import android.widget.CompoundButton; 23 import android.widget.Switch; 24 25 import com.android.car.settings.R; 26 27 /** A preference that can be clicked on one side and toggled on another. */ 28 public class MasterSwitchPreference extends TwoActionPreference { 29 30 /** 31 * Interface definition for a callback to be invoked when the switch is toggled. 32 */ 33 public interface OnSwitchToggleListener { 34 /** 35 * Called when a switch was toggled. 36 * 37 * @param preference the preference whose switch was toggled. 38 * @param isChecked the new state of the switch. 39 */ onToggle(MasterSwitchPreference preference, boolean isChecked)40 void onToggle(MasterSwitchPreference preference, boolean isChecked); 41 } 42 43 private Switch mSwitch; 44 private boolean mIsChecked; 45 private OnSwitchToggleListener mToggleListener; 46 47 private final CompoundButton.OnCheckedChangeListener mCheckedChangeListener = 48 (buttonView, isChecked) -> { 49 if (mToggleListener != null) { 50 mToggleListener.onToggle(this, isChecked); 51 } 52 }; 53 MasterSwitchPreference(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes)54 public MasterSwitchPreference(Context context, AttributeSet attrs, 55 int defStyleAttr, int defStyleRes) { 56 super(context, attrs, defStyleAttr, defStyleRes); 57 init(); 58 } 59 MasterSwitchPreference(Context context, AttributeSet attrs, int defStyleAttr)60 public MasterSwitchPreference(Context context, AttributeSet attrs, int defStyleAttr) { 61 super(context, attrs, defStyleAttr); 62 init(); 63 } 64 MasterSwitchPreference(Context context, AttributeSet attrs)65 public MasterSwitchPreference(Context context, AttributeSet attrs) { 66 super(context, attrs); 67 init(); 68 } 69 MasterSwitchPreference(Context context)70 public MasterSwitchPreference(Context context) { 71 super(context); 72 init(); 73 } 74 init()75 private void init() { 76 setWidgetLayoutResource(R.layout.master_switch_widget); 77 } 78 79 /** Sets the listener that handles the change in switch state. */ setSwitchToggleListener(OnSwitchToggleListener listener)80 public void setSwitchToggleListener(OnSwitchToggleListener listener) { 81 mToggleListener = listener; 82 } 83 84 /** Gets the listener that handles the change in switch state. */ getSwitchToggleListener()85 public OnSwitchToggleListener getSwitchToggleListener() { 86 return mToggleListener; 87 } 88 89 @Override onBindWidgetFrame(View widgetFrame)90 protected void onBindWidgetFrame(View widgetFrame) { 91 mSwitch = widgetFrame.findViewById(R.id.master_switch); 92 mSwitch.setChecked(mIsChecked); 93 mSwitch.setOnCheckedChangeListener(mCheckedChangeListener); 94 widgetFrame.setOnClickListener(v -> setSwitchChecked(!mIsChecked)); 95 } 96 97 /** 98 * Sets the state of the switch. Can be set even when it isn't visible or bound in order to set 99 * the initial state. 100 */ setSwitchChecked(boolean checked)101 public void setSwitchChecked(boolean checked) { 102 mIsChecked = checked; 103 if (!isActionShown()) { 104 return; 105 } 106 107 if (mSwitch != null) { 108 mSwitch.setChecked(checked); 109 } 110 } 111 112 /** Gets the state of the switch. */ isSwitchChecked()113 public boolean isSwitchChecked() { 114 return mIsChecked; 115 } 116 } 117