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.settings.widget; 18 19 import android.content.Context; 20 import android.content.res.TypedArray; 21 import android.util.AttributeSet; 22 import android.view.View; 23 import android.widget.Button; 24 25 import androidx.annotation.VisibleForTesting; 26 import androidx.core.content.res.TypedArrayUtils; 27 28 import com.android.settings.R; 29 import com.android.settingslib.widget.LayoutPreference; 30 31 /** 32 * Preference that presents a button with two states(On vs Off) 33 */ 34 public class TwoStateButtonPreference extends LayoutPreference implements 35 View.OnClickListener { 36 37 private boolean mIsChecked; 38 private final Button mButtonOn; 39 private final Button mButtonOff; 40 TwoStateButtonPreference(Context context, AttributeSet attrs)41 public TwoStateButtonPreference(Context context, AttributeSet attrs) { 42 super(context, attrs, TypedArrayUtils.getAttr( 43 context, R.attr.twoStateButtonPreferenceStyle, android.R.attr.preferenceStyle)); 44 45 if (attrs == null) { 46 mButtonOn = null; 47 mButtonOff = null; 48 } else { 49 final TypedArray styledAttrs = context.obtainStyledAttributes(attrs, 50 R.styleable.TwoStateButtonPreference); 51 final int textOnId = styledAttrs.getResourceId( 52 R.styleable.TwoStateButtonPreference_textOn, 53 R.string.summary_placeholder); 54 final int textOffId = styledAttrs.getResourceId( 55 R.styleable.TwoStateButtonPreference_textOff, 56 R.string.summary_placeholder); 57 styledAttrs.recycle(); 58 59 mButtonOn = findViewById(R.id.state_on_button); 60 mButtonOn.setText(textOnId); 61 mButtonOn.setOnClickListener(this); 62 mButtonOff = findViewById(R.id.state_off_button); 63 mButtonOff.setText(textOffId); 64 mButtonOff.setOnClickListener(this); 65 setChecked(isChecked()); 66 } 67 } 68 69 @Override onClick(View v)70 public void onClick(View v) { 71 final boolean stateOn = v.getId() == R.id.state_on_button; 72 setChecked(stateOn); 73 callChangeListener(stateOn); 74 } 75 setChecked(boolean checked)76 public void setChecked(boolean checked) { 77 // Update state 78 mIsChecked = checked; 79 // And update UI 80 if (checked) { 81 mButtonOn.setVisibility(View.GONE); 82 mButtonOff.setVisibility(View.VISIBLE); 83 } else { 84 mButtonOn.setVisibility(View.VISIBLE); 85 mButtonOff.setVisibility(View.GONE); 86 } 87 } 88 isChecked()89 public boolean isChecked() { 90 return mIsChecked; 91 } 92 setButtonEnabled(boolean enabled)93 public void setButtonEnabled(boolean enabled) { 94 mButtonOn.setEnabled(enabled); 95 mButtonOff.setEnabled(enabled); 96 } 97 98 @VisibleForTesting getStateOnButton()99 public Button getStateOnButton() { 100 return mButtonOn; 101 } 102 103 @VisibleForTesting getStateOffButton()104 public Button getStateOffButton() { 105 return mButtonOff; 106 } 107 }