CameraPicker.java

/*
 * Copyright (C) 2010 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.camera.ui;

import android.content.Context;
import android.hardware.Camera.CameraInfo;
import android.view.View;

import com.android.camera.CameraPreference.OnPreferenceChangedListener;
import com.android.camera.ListPreference;
import com.android.camera2.R;

/**
 * A view for switching the front/back camera.
 */
public class CameraPicker extends RotateImageView implements View.OnClickListener {
    private static int mImageResource;

    private OnPreferenceChangedListener mListener;
    private ListPreference mPreference;

    public CameraPicker(Context context) {
        super(context);
        setImageResource(mImageResource);
        setContentDescription(getResources().getString(
                R.string.accessibility_camera_picker));
        setId(R.id.camera_picker);
    }

    public static void setImageResourceId(int imageResource) {
        mImageResource = imageResource;
    }

    public void setListener(OnPreferenceChangedListener listener) {
        mListener = listener;
    }

    public void initialize(ListPreference pref) {
        mPreference = pref;
        setOnClickListener(this);
        setVisibility(View.VISIBLE);
    }

    public void setCameraId(int cameraId) {
        mPreference.setValue("" + cameraId);
    }

    @Override
    public void onClick(View v) {
        // Find the index of next camera.
        int index = mPreference.findIndexOfValue(mPreference.getValue());
        CharSequence[] values = mPreference.getEntryValues();
        index = (index + 1) % values.length;
        int newCameraId = Integer.parseInt((String) values[index]);
        mListener.onCameraPickerClicked(newCameraId);
    }
}