1 /*
2  * Copyright (C) 2010 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.CameraPreference.OnPreferenceChangedListener;
20 import com.android.camera.ListPreference;
21 import com.android.camera.R;
22 
23 import android.content.Context;
24 import android.hardware.Camera.CameraInfo;
25 import android.view.View;
26 
27 /**
28  * A view for switching the front/back camera.
29  */
30 public class CameraPicker extends RotateImageView implements View.OnClickListener {
31     private static int mImageResource;
32 
33     private OnPreferenceChangedListener mListener;
34     private ListPreference mPreference;
35     private CharSequence[] mCameras;
36 
CameraPicker(Context context)37     public CameraPicker(Context context) {
38         super(context);
39         setImageResource(mImageResource);
40         setContentDescription(getResources().getString(
41                 R.string.accessibility_camera_picker));
42     }
43 
setImageResourceId(int imageResource)44     public static void setImageResourceId(int imageResource) {
45         mImageResource = imageResource;
46     }
47 
setListener(OnPreferenceChangedListener listener)48     public void setListener(OnPreferenceChangedListener listener) {
49         mListener = listener;
50     }
51 
initialize(ListPreference pref)52     public void initialize(ListPreference pref) {
53         mPreference = pref;
54         mCameras = pref.getEntryValues();
55         if (mCameras == null) return;
56         setOnClickListener(this);
57         setVisibility(View.VISIBLE);
58     }
59 
60     @Override
onClick(View v)61     public void onClick(View v) {
62         if (mCameras == null) return;
63         int index = mPreference.findIndexOfValue(mPreference.getValue());
64         CharSequence[] values = mPreference.getEntryValues();
65         index = (index + 1) % values.length;
66         mPreference.setValue((String) mCameras[index]);
67         mListener.onSharedPreferenceChanged();
68     }
69 }
70