FingerPrinterView.java 文件源码

/**
 * 处理图片缩放
 */
private Bitmap setScale(Bitmap a) {
    scale = ((float) (mWidth) / mBitWidth);
    Matrix mMatrix = new Matrix();
    mMatrix.postScale(scale, scale);
    Bitmap bmp = Bitmap.createBitmap(a, 0, 0, a.getWidth(), a.getHeight(),
            mMatrix, true);
    return bmp;
}