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VivekThummar52 avatar VivekThummar52 commented on September 13, 2024

Ohk, i got a little success using given code (and it works fine):

Bitmap borderedBitmap = addBorderToBitmap(originalBitmap, 5, Color.WHITE);


private Bitmap addBorderToBitmap(Bitmap srcBitmap, int borderWidth, int borderColor) {
    Bitmap dstBitmap = Bitmap.createBitmap(
            srcBitmap.getWidth() + borderWidth * 2, // Width
            srcBitmap.getHeight() + borderWidth * 2, // Height
            Bitmap.Config.ARGB_8888 // Config
    );

    Canvas canvas = new Canvas(dstBitmap);
    Paint paint = new Paint();
    paint.setColor(borderColor);
    paint.setStyle(Paint.Style.STROKE);
    paint.setStrokeWidth(borderWidth);
    paint.setAntiAlias(true);

    Rect rect = new Rect(
            borderWidth / 2,
            borderWidth / 2,
            canvas.getWidth() - borderWidth / 2,
            canvas.getHeight() - borderWidth / 2,
    );
    canvas.drawRect(rect, paint);
    canvas.drawBitmap(srcBitmap, borderWidth, borderWidth, null);
    srcBitmap.recycle();

    // Return the bordered circular bitmap
    return dstBitmap;
}

But there's some confusion,i'm using paint.setAntiAlias(true); to make border paint looks smooth, even with this option, border looks rough, is there any solution for this?

from zoomage.

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