Main.java Source code

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Here is the source code for Main.java

Source

//package com.java2s;
/* 
 * Copyright 2012 Google Inc. All Rights Reserved.
 *
 * 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 java.lang.reflect.Method;

import java.util.List;

import android.hardware.Camera;

public class Main {
    /** Sets the camera's picture size to the maximum available size, as determined by number of pixels (width*height).
     * Returns a Camera.Size object containing the updated picture size.
     */
    public static Camera.Size setLargestCameraSize(Camera camera) {
        Camera.Parameters params = camera.getParameters();
        List<Camera.Size> pictureSizes = pictureSizesForCameraParameters(params);
        if (pictureSizes != null && pictureSizes.size() > 0) {
            long bestPixels = -1;
            Camera.Size bestSize = null;
            for (Camera.Size size : pictureSizes) {
                long pixels = size.width * size.height;
                if (pixels > bestPixels || bestPixels < 0) {
                    bestPixels = pixels;
                    bestSize = size;
                }
            }
            if (bestSize != null) {
                params.setPictureSize(bestSize.width, bestSize.height);
                camera.setParameters(params);
            }
        }

        return params.getPictureSize();
    }

    /** Returns a list of available camera picture sizes, or null if the Android API to get the sizes is not available.
     */
    public static List<Camera.Size> pictureSizesForCameraParameters(Camera.Parameters params) {
        try {
            Method m = params.getClass().getMethod("getSupportedPictureSizes");
            return (List<Camera.Size>) m.invoke(params);
        } catch (Exception ex) {
            return null;
        }
    }
}