Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright (C) 2014 ZXing authors
 *
 * 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.
 */

import android.hardware.Camera;

import android.util.Log;

import java.util.Arrays;
import java.util.Collection;

import java.util.List;

public class Main {
    private static final String TAG = "CameraConfUtils";

    /**
     * Sets the camera focus mode to infinity
     * @param parameters parameters of a camera
     */
    protected static void setFocus(Camera.Parameters parameters) {

        List<String> supportedFocusModes = parameters.getSupportedFocusModes();
        String focusMode = findSettableValue("focus mode", supportedFocusModes, parameters.FOCUS_MODE_INFINITY);

        if (focusMode != null) {
            parameters.setFocusMode(focusMode);
        }
        Log.i(TAG, "Focus mode already set to " + focusMode);
    }

    /**
     * Finds the best possible value out of the list of supported values
     * @param name name of the desired mode the values are searched for
     * @param supportedValues the supported values
     * @param desiredValues the desired values with descending priority
     * @return the best possible value
     */
    private static String findSettableValue(String name, Collection<String> supportedValues,
            String... desiredValues) {
        Log.i(TAG, "Requesting " + name + " value from among: " + Arrays.toString(desiredValues));
        Log.i(TAG, "Supported " + name + " values: " + supportedValues);
        if (supportedValues != null) {
            for (String desiredValue : desiredValues) {
                if (supportedValues.contains(desiredValue)) {
                    Log.i(TAG, "Can set " + name + " to: " + desiredValue);
                    return desiredValue;
                }
            }
        }
        Log.i(TAG, "No supported values match");
        return null;
    }
}