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.location;
18 
19 import android.content.Context;
20 import android.preference.CheckBoxPreference;
21 import android.util.AttributeSet;
22 import android.view.View;
23 import android.widget.TextView;
24 
25 import com.android.settings.R;
26 
27 /**
28  * Check box preference with check box replaced by radio button.
29  *
30  * Functionally speaking, it's actually a CheckBoxPreference. We only modified
31  * the widget to RadioButton to make it "look like" a RadioButtonPreference.
32  *
33  * In other words, there's no "RadioButtonPreferenceGroup" in this
34  * implementation. When you check one RadioButtonPreference, if you want to
35  * uncheck all the other preferences, you should do that by code yourself.
36  */
37 public class RadioButtonPreference extends CheckBoxPreference {
38     public interface OnClickListener {
onRadioButtonClicked(RadioButtonPreference emiter)39         public abstract void onRadioButtonClicked(RadioButtonPreference emiter);
40     }
41 
42     private OnClickListener mListener = null;
43 
RadioButtonPreference(Context context, AttributeSet attrs, int defStyle)44     public RadioButtonPreference(Context context, AttributeSet attrs, int defStyle) {
45         super(context, attrs, defStyle);
46         setWidgetLayoutResource(R.layout.preference_widget_radiobutton);
47     }
48 
RadioButtonPreference(Context context, AttributeSet attrs)49     public RadioButtonPreference(Context context, AttributeSet attrs) {
50         this(context, attrs, com.android.internal.R.attr.checkBoxPreferenceStyle);
51     }
52 
RadioButtonPreference(Context context)53     public RadioButtonPreference(Context context) {
54         this(context, null);
55     }
56 
setOnClickListener(OnClickListener listener)57     void setOnClickListener(OnClickListener listener) {
58         mListener = listener;
59     }
60 
61     @Override
onClick()62     public void onClick() {
63         if (mListener != null) {
64             mListener.onRadioButtonClicked(this);
65         }
66     }
67 
68     @Override
onBindView(View view)69     protected void onBindView(View view) {
70         super.onBindView(view);
71 
72         TextView title = (TextView) view.findViewById(android.R.id.title);
73         if (title != null) {
74             title.setSingleLine(false);
75             title.setMaxLines(3);
76         }
77     }
78 }
79