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
17package android.preference;
18
19import android.content.Context;
20import android.content.res.TypedArray;
21import android.util.AttributeSet;
22import android.view.View;
23import 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 */
35public class CheckBoxPreference extends TwoStatePreference {
36
37    public CheckBoxPreference(Context context, AttributeSet attrs, int defStyle) {
38        super(context, attrs, defStyle);
39
40        TypedArray a = context.obtainStyledAttributes(attrs,
41                com.android.internal.R.styleable.CheckBoxPreference, defStyle, 0);
42        setSummaryOn(a.getString(com.android.internal.R.styleable.CheckBoxPreference_summaryOn));
43        setSummaryOff(a.getString(com.android.internal.R.styleable.CheckBoxPreference_summaryOff));
44        setDisableDependentsState(a.getBoolean(
45                com.android.internal.R.styleable.CheckBoxPreference_disableDependentsState, false));
46        a.recycle();
47    }
48
49    public CheckBoxPreference(Context context, AttributeSet attrs) {
50        this(context, attrs, com.android.internal.R.attr.checkBoxPreferenceStyle);
51    }
52
53    public CheckBoxPreference(Context context) {
54        this(context, null);
55    }
56
57    @Override
58    protected void onBindView(View view) {
59        super.onBindView(view);
60
61        View checkboxView = view.findViewById(com.android.internal.R.id.checkbox);
62        if (checkboxView != null && checkboxView instanceof Checkable) {
63            ((Checkable) checkboxView).setChecked(mChecked);
64            sendAccessibilityEvent(checkboxView);
65        }
66
67        syncSummaryView(view);
68    }
69}
70