[Java/Android] Scale Bitmap/Image and Keep Aspect Ratio

scaleBitmapAndKeepRation.java

//rescale image
public static Bitmap scaleBitmapAndKeepRation(Bitmap TargetBmp,int reqHeightInPixels,int reqWidthInPixels)
{
    if(TargetBmp.getWidth() >= reqHeightInPixels && TargetBmp.getHeight() >= reqHeightInPixels) {
        Matrix m = new Matrix();
        m.setRectToRect(new RectF(0, 0, TargetBmp.getWidth(), TargetBmp.getHeight()), new RectF(0, 0, reqWidthInPixels, reqHeightInPixels), Matrix.ScaleToFit.CENTER);
        Bitmap scaledBitmap = Bitmap.createBitmap(TargetBmp, 0, 0, TargetBmp.getWidth(), TargetBmp.getHeight(), m, true);
        return scaledBitmap;
    }
    else
    {
        return  TargetBmp;
    }
}