CameraPicker.java revision 38e737508cf9fd517bfa9289e80089fb60c8e5b0 
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
17package com.android.camera.ui;
18
19import com.android.camera.CameraPreference.OnPreferenceChangedListener;
20import com.android.camera.ListPreference;
21import com.android.camera.R;
22
23import android.content.Context;
24import android.hardware.Camera.CameraInfo;
25import android.util.AttributeSet;
26import android.view.View;
27import android.widget.ImageView;
28
29/**
30 * A view for switching the front/back camera.
31 */
32public class CameraPicker extends RotateImageView implements View.OnClickListener {
33    private OnPreferenceChangedListener mListener;
34    private ListPreference mPreference;
35    private CharSequence[] mCameras;
36    private int mCameraFacing;
37
38    public CameraPicker(Context context) {
39        super(context);
40        setImageResource(R.drawable.ic_switch_camera_facing_holo_light);
41    }
42
43    public void setListener(OnPreferenceChangedListener listener) {
44        mListener = listener;
45    }
46
47    public void initialize(ListPreference pref) {
48        mPreference = pref;
49        mCameras = pref.getEntryValues();
50        if (mCameras == null) return;
51        setOnClickListener(this);
52        String cameraId = pref.getValue();
53        setVisibility(View.VISIBLE);
54        if (mCameras[CameraInfo.CAMERA_FACING_FRONT].equals(cameraId)) {
55            mCameraFacing = CameraInfo.CAMERA_FACING_FRONT;
56        } else {
57            mCameraFacing = CameraInfo.CAMERA_FACING_BACK;
58        }
59    }
60
61    @Override
62    public void onClick(View v) {
63        if (mCameras == null) return;
64        int newCameraIndex = (mCameraFacing == CameraInfo.CAMERA_FACING_BACK)
65                ? CameraInfo.CAMERA_FACING_FRONT
66                : CameraInfo.CAMERA_FACING_BACK;
67        mCameraFacing = newCameraIndex;
68        mPreference.setValue((String) mCameras[mCameraFacing]);
69        mListener.onSharedPreferenceChanged();
70    }
71}
72