ImageHelper.java 文件源码

public static Bitmap highlightSelectedFaceThumbnail(Bitmap originalBitmap) {
    Bitmap bitmap = originalBitmap.copy(Bitmap.Config.ARGB_8888, true);
    Canvas canvas = new Canvas(bitmap);
    Paint paint = new Paint();
    paint.setAntiAlias(true);
    paint.setStyle(Paint.Style.STROKE);
    paint.setColor(Color.parseColor("#3399FF"));
    int stokeWidth = Math.max(originalBitmap.getWidth(), originalBitmap.getHeight()) / 10;
    if (stokeWidth == 0) {
        stokeWidth = 1;
    }
    bitmap.getWidth();
    paint.setStrokeWidth(stokeWidth);
    canvas.drawRect(
            0,
            0,
            bitmap.getWidth(),
            bitmap.getHeight(),
            paint);

    return bitmap;
}