1 /* 2 * Copyright (C) 2017 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.text.TextUtils; 21 import android.util.AttributeSet; 22 import android.view.View; 23 import android.widget.TextView; 24 25 import androidx.core.content.res.TypedArrayUtils; 26 import androidx.preference.CheckBoxPreference; 27 import androidx.preference.PreferenceViewHolder; 28 29 import com.android.settings.R; 30 31 /** 32 * Check box preference with check box replaced by radio button. 33 * 34 * Functionally speaking, it's actually a CheckBoxPreference. We only modified 35 * the widget to RadioButton to make it "look like" a RadioButtonPreference. 36 * 37 * In other words, there's no "RadioButtonPreferenceGroup" in this 38 * implementation. When you check one RadioButtonPreference, if you want to 39 * uncheck all the other preferences, you should do that by code yourself. 40 */ 41 public class RadioButtonPreference extends CheckBoxPreference { 42 public interface OnClickListener { onRadioButtonClicked(RadioButtonPreference emiter)43 void onRadioButtonClicked(RadioButtonPreference emiter); 44 } 45 46 private OnClickListener mListener = null; 47 private View appendix; 48 private int appendixVisibility = -1; 49 RadioButtonPreference(Context context, AttributeSet attrs, int defStyle)50 public RadioButtonPreference(Context context, AttributeSet attrs, int defStyle) { 51 super(context, attrs, defStyle); 52 setWidgetLayoutResource(R.layout.preference_widget_radiobutton); 53 setLayoutResource(R.layout.preference_radio); 54 setIconSpaceReserved(false); 55 } 56 RadioButtonPreference(Context context, AttributeSet attrs)57 public RadioButtonPreference(Context context, AttributeSet attrs) { 58 this(context, attrs, TypedArrayUtils.getAttr(context, 59 androidx.preference.R.attr.preferenceStyle, 60 android.R.attr.preferenceStyle)); 61 } 62 RadioButtonPreference(Context context)63 public RadioButtonPreference(Context context) { 64 this(context, null); 65 } 66 setOnClickListener(OnClickListener listener)67 public void setOnClickListener(OnClickListener listener) { 68 mListener = listener; 69 } 70 71 @Override onClick()72 public void onClick() { 73 if (mListener != null) { 74 mListener.onRadioButtonClicked(this); 75 } 76 } 77 78 @Override onBindViewHolder(PreferenceViewHolder view)79 public void onBindViewHolder(PreferenceViewHolder view) { 80 super.onBindViewHolder(view); 81 82 View summaryContainer = view.findViewById(R.id.summary_container); 83 if (summaryContainer != null) { 84 summaryContainer.setVisibility( 85 TextUtils.isEmpty(getSummary()) ? View.GONE : View.VISIBLE); 86 appendix = view.findViewById(R.id.appendix); 87 if (appendix != null && appendixVisibility != -1) { 88 appendix.setVisibility(appendixVisibility); 89 } 90 } 91 92 TextView title = (TextView) view.findViewById(android.R.id.title); 93 if (title != null) { 94 title.setSingleLine(false); 95 title.setMaxLines(3); 96 } 97 } 98 setAppendixVisibility(int visibility)99 public void setAppendixVisibility(int visibility) { 100 if (appendix != null) { 101 appendix.setVisibility(visibility); 102 } 103 appendixVisibility = visibility; 104 } 105 } 106