1/* 2 * Copyright (C) 2014 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 17package com.android.inputmethod.latin.settings; 18 19import android.content.Context; 20import android.preference.Preference; 21import android.util.AttributeSet; 22import android.view.View; 23import android.widget.RadioButton; 24 25import com.android.inputmethod.latin.R; 26 27/** 28 * Radio Button preference 29 */ 30public class RadioButtonPreference extends Preference { 31 interface OnRadioButtonClickedListener { 32 /** 33 * Called when this preference needs to be saved its state. 34 * 35 * @param preference This preference. 36 */ 37 public void onRadioButtonClicked(RadioButtonPreference preference); 38 } 39 40 private boolean mIsSelected; 41 private RadioButton mRadioButton; 42 private OnRadioButtonClickedListener mListener; 43 private final View.OnClickListener mClickListener = new View.OnClickListener() { 44 @Override 45 public void onClick(final View v) { 46 if (mListener != null) { 47 mListener.onRadioButtonClicked(RadioButtonPreference.this); 48 } 49 } 50 }; 51 52 public RadioButtonPreference(final Context context) { 53 this(context, null); 54 } 55 56 public RadioButtonPreference(final Context context, final AttributeSet attrs) { 57 this(context, attrs, android.R.attr.preferenceStyle); 58 } 59 60 public RadioButtonPreference(final Context context, final AttributeSet attrs, 61 final int defStyleAttr) { 62 super(context, attrs, defStyleAttr); 63 setWidgetLayoutResource(R.layout.radio_button_preference_widget); 64 } 65 66 public void setOnRadioButtonClickedListener(final OnRadioButtonClickedListener listener) { 67 mListener = listener; 68 } 69 70 @Override 71 protected void onBindView(final View view) { 72 super.onBindView(view); 73 mRadioButton = (RadioButton)view.findViewById(R.id.radio_button); 74 mRadioButton.setChecked(mIsSelected); 75 mRadioButton.setOnClickListener(mClickListener); 76 view.setOnClickListener(mClickListener); 77 } 78 79 public boolean isSelected() { 80 return mIsSelected; 81 } 82 83 public void setSelected(final boolean selected) { 84 if (selected == mIsSelected) { 85 return; 86 } 87 mIsSelected = selected; 88 if (mRadioButton != null) { 89 mRadioButton.setChecked(selected); 90 } 91 notifyChanged(); 92 } 93} 94