1 /*
2  * Copyright (C) 2011 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.camera.ui;
18 
19 import com.android.camera.ListPreference;
20 import com.android.camera.R;
21 
22 import android.content.Context;
23 import android.util.AttributeSet;
24 import android.view.View;
25 import android.view.accessibility.AccessibilityEvent;
26 import android.widget.Button;
27 import android.widget.CompoundButton;
28 import android.widget.CompoundButton.OnCheckedChangeListener;
29 import android.widget.Switch;
30 
31 /* A switch setting control which turns on/off the setting. */
32 public class InLineSettingSwitch extends InLineSettingItem {
33     private Switch mSwitch;
34 
35     OnCheckedChangeListener mCheckedChangeListener = new OnCheckedChangeListener() {
36         public void onCheckedChanged(CompoundButton buttonView, boolean desiredState) {
37             changeIndex(desiredState ? 1 : 0);
38         }
39     };
40 
InLineSettingSwitch(Context context, AttributeSet attrs)41     public InLineSettingSwitch(Context context, AttributeSet attrs) {
42         super(context, attrs);
43     }
44 
45     @Override
onFinishInflate()46     protected void onFinishInflate() {
47         super.onFinishInflate();
48         mSwitch = (Switch) findViewById(R.id.setting_switch);
49         mSwitch.setOnCheckedChangeListener(mCheckedChangeListener);
50     }
51 
52     @Override
initialize(ListPreference preference)53     public void initialize(ListPreference preference) {
54         super.initialize(preference);
55         // Add content descriptions for the increment and decrement buttons.
56         mSwitch.setContentDescription(getContext().getResources().getString(
57                 R.string.accessibility_switch, mPreference.getTitle()));
58     }
59 
60     @Override
updateView()61     protected void updateView() {
62         mSwitch.setOnCheckedChangeListener(null);
63         if (mOverrideValue == null) {
64             mSwitch.setChecked(mIndex == 1);
65         } else {
66             int index = mPreference.findIndexOfValue(mOverrideValue);
67             mSwitch.setChecked(index == 1);
68         }
69         mSwitch.setOnCheckedChangeListener(mCheckedChangeListener);
70     }
71 
72     @Override
dispatchPopulateAccessibilityEvent(AccessibilityEvent event)73     public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) {
74         onPopulateAccessibilityEvent(event);
75         return true;
76     }
77 
78     @Override
onPopulateAccessibilityEvent(AccessibilityEvent event)79     public void onPopulateAccessibilityEvent(AccessibilityEvent event) {
80         super.onPopulateAccessibilityEvent(event);
81         event.getText().add(mPreference.getTitle());
82     }
83 }
84