1 /*
2  * Copyright (C) 2007 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 android.preference;
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.Checkable;
24 
25 /**
26  * A {@link Preference} that provides checkbox widget
27  * functionality.
28  * <p>
29  * This preference will store a boolean into the SharedPreferences.
30  *
31  * @attr ref android.R.styleable#CheckBoxPreference_summaryOff
32  * @attr ref android.R.styleable#CheckBoxPreference_summaryOn
33  * @attr ref android.R.styleable#CheckBoxPreference_disableDependentsState
34  */
35 public class CheckBoxPreference extends TwoStatePreference {
36 
CheckBoxPreference(Context context, AttributeSet attrs, int defStyleAttr)37     public CheckBoxPreference(Context context, AttributeSet attrs, int defStyleAttr) {
38         this(context, attrs, defStyleAttr, 0);
39     }
40 
CheckBoxPreference( Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes)41     public CheckBoxPreference(
42             Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
43         super(context, attrs, defStyleAttr, defStyleRes);
44 
45         final TypedArray a = context.obtainStyledAttributes(attrs,
46                 com.android.internal.R.styleable.CheckBoxPreference, defStyleAttr, defStyleRes);
47         setSummaryOn(a.getString(com.android.internal.R.styleable.CheckBoxPreference_summaryOn));
48         setSummaryOff(a.getString(com.android.internal.R.styleable.CheckBoxPreference_summaryOff));
49         setDisableDependentsState(a.getBoolean(
50                 com.android.internal.R.styleable.CheckBoxPreference_disableDependentsState, false));
51         a.recycle();
52     }
53 
CheckBoxPreference(Context context, AttributeSet attrs)54     public CheckBoxPreference(Context context, AttributeSet attrs) {
55         this(context, attrs, com.android.internal.R.attr.checkBoxPreferenceStyle);
56     }
57 
CheckBoxPreference(Context context)58     public CheckBoxPreference(Context context) {
59         this(context, null);
60     }
61 
62     @Override
onBindView(View view)63     protected void onBindView(View view) {
64         super.onBindView(view);
65 
66         View checkboxView = view.findViewById(com.android.internal.R.id.checkbox);
67         if (checkboxView != null && checkboxView instanceof Checkable) {
68             ((Checkable) checkboxView).setChecked(mChecked);
69         }
70 
71         syncSummaryView(view);
72     }
73 }
74