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.support.annotation.VisibleForTesting; 22 import android.support.v4.content.res.TypedArrayUtils; 23 import android.util.AttributeSet; 24 import android.view.View; 25 import android.widget.Button; 26 27 import com.android.settings.R; 28 import com.android.settings.applications.LayoutPreference; 29 30 /** 31 * Preference that presents a button with two states(On vs Off) 32 */ 33 public class TwoStateButtonPreference extends LayoutPreference implements 34 View.OnClickListener { 35 36 private boolean mIsChecked; 37 private final Button mButtonOn; 38 private final Button mButtonOff; 39 TwoStateButtonPreference(Context context, AttributeSet attrs)40 public TwoStateButtonPreference(Context context, AttributeSet attrs) { 41 super(context, attrs, TypedArrayUtils.getAttr( 42 context, R.attr.twoStateButtonPreferenceStyle, android.R.attr.preferenceStyle)); 43 44 if (attrs == null) { 45 mButtonOn = null; 46 mButtonOff = null; 47 } else { 48 final TypedArray styledAttrs = context.obtainStyledAttributes(attrs, 49 R.styleable.TwoStateButtonPreference); 50 final int textOnId = styledAttrs.getResourceId( 51 R.styleable.TwoStateButtonPreference_textOn, 52 R.string.summary_placeholder); 53 final int textOffId = styledAttrs.getResourceId( 54 R.styleable.TwoStateButtonPreference_textOff, 55 R.string.summary_placeholder); 56 styledAttrs.recycle(); 57 58 mButtonOn = findViewById(R.id.state_on_button); 59 mButtonOn.setText(textOnId); 60 mButtonOn.setOnClickListener(this); 61 mButtonOff = findViewById(R.id.state_off_button); 62 mButtonOff.setText(textOffId); 63 mButtonOff.setOnClickListener(this); 64 setChecked(isChecked()); 65 } 66 } 67 68 @Override onClick(View v)69 public void onClick(View v) { 70 final boolean stateOn = v.getId() == R.id.state_on_button; 71 setChecked(stateOn); 72 callChangeListener(stateOn); 73 } 74 setChecked(boolean checked)75 public void setChecked(boolean checked) { 76 // Update state 77 mIsChecked = checked; 78 // And update UI 79 if (checked) { 80 mButtonOn.setVisibility(View.GONE); 81 mButtonOff.setVisibility(View.VISIBLE); 82 } else { 83 mButtonOn.setVisibility(View.VISIBLE); 84 mButtonOff.setVisibility(View.GONE); 85 } 86 } 87 isChecked()88 public boolean isChecked() { 89 return mIsChecked; 90 } 91 setButtonEnabled(boolean enabled)92 public void setButtonEnabled(boolean enabled) { 93 mButtonOn.setEnabled(enabled); 94 mButtonOff.setEnabled(enabled); 95 } 96 97 @VisibleForTesting getStateOnButton()98 public Button getStateOnButton() { 99 return mButtonOn; 100 } 101 102 @VisibleForTesting getStateOffButton()103 public Button getStateOffButton() { 104 return mButtonOff; 105 } 106 }