1 /* 2 * Copyright (C) 2013 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.widget; 18 19 import android.content.Context; 20 import android.util.AttributeSet; 21 import android.widget.Switch; 22 23 public class ToggleSwitch extends Switch { 24 25 private ToggleSwitch.OnBeforeCheckedChangeListener mOnBeforeListener; 26 27 public interface OnBeforeCheckedChangeListener { onBeforeCheckedChanged(ToggleSwitch toggleSwitch, boolean checked)28 boolean onBeforeCheckedChanged(ToggleSwitch toggleSwitch, boolean checked); 29 } 30 ToggleSwitch(Context context)31 public ToggleSwitch(Context context) { 32 super(context); 33 } 34 ToggleSwitch(Context context, AttributeSet attrs)35 public ToggleSwitch(Context context, AttributeSet attrs) { 36 super(context, attrs); 37 } 38 ToggleSwitch(Context context, AttributeSet attrs, int defStyleAttr)39 public ToggleSwitch(Context context, AttributeSet attrs, int defStyleAttr) { 40 super(context, attrs, defStyleAttr); 41 } 42 ToggleSwitch(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes)43 public ToggleSwitch(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { 44 super(context, attrs, defStyleAttr, defStyleRes); 45 } 46 setOnBeforeCheckedChangeListener(OnBeforeCheckedChangeListener listener)47 public void setOnBeforeCheckedChangeListener(OnBeforeCheckedChangeListener listener) { 48 mOnBeforeListener = listener; 49 } 50 51 @Override setChecked(boolean checked)52 public void setChecked(boolean checked) { 53 if (mOnBeforeListener != null 54 && mOnBeforeListener.onBeforeCheckedChanged(this, checked)) { 55 return; 56 } 57 super.setChecked(checked); 58 } 59 setCheckedInternal(boolean checked)60 public void setCheckedInternal(boolean checked) { 61 super.setChecked(checked); 62 } 63 } 64