calculate proportional layout dimension for displaying a camera preview according to a given camera preview size - Android Camera

Android examples for Camera:Camera Preview

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Description

calculate proportional layout dimension for displaying a camera preview according to a given camera preview size

Demo Code


//package com.java2s;
import android.hardware.Camera;

public class Main {
    public static int[] getProportionalDimension(Camera.Size size,
            int targetW, int targetH, boolean isPortrait) {
        int[] adaptedDimension = new int[2];
        double previewRatio;

        if (isPortrait) {
            previewRatio = (double) size.height / size.width;
        } else {/*w  w  w. ja v a  2  s  .c o  m*/
            previewRatio = (double) size.width / size.height;
        }

        if (((double) targetW / targetH) > previewRatio) {
            adaptedDimension[0] = targetW;
            adaptedDimension[1] = (int) (adaptedDimension[0] / previewRatio);
        } else {
            adaptedDimension[1] = targetH;
            adaptedDimension[0] = (int) (adaptedDimension[1] * previewRatio);
        }

        return adaptedDimension;
    }
}

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