Create nine-patch from bitamp - and getting new adjust bitmap

问题

I'm tring to download an image from the net, and to convert it to ninepatch format, how I select the stretchable pixels is out of scope for this thread.

I'm trying to use gist solution but I couldn't get it to work.

This is the source code:

NinePatchDrawable np = createNinePathWithCapInsets(res, bitmap, top,left, bitmap.getWidth() - right, bitmap.getHeight() - bottom, null);

and to get the resulted bitmap:

Bitmap outputBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(outputBitmap);
//np.setBounds(0, 0, width, height);
np.draw(canvas);
canvas.drawBitmap(outputBitmap, width, height, new Paint());

The returned bitmap doesn't contain the source bitmap and looks just like 4 segmentations(rect seg').

I could find any other to achive that goal, even not using OpenGL

The resulted image is:

回答1:

try this:

public static byte[] getChunk(int xs, int xe, int ys, int ye) {
    ByteBuffer b = ByteBuffer.allocate(84).order(ByteOrder.nativeOrder());
    b.put((byte) 1); // wasDeserialized
    b.put((byte) 2); // numXDivs
    b.put((byte) 2); // numYDivs
    b.put((byte) 9); // numColors
    b.putInt(0);     // UNKNOWN
    b.putInt(0);     // UNKNOWN
    b.putInt(0);     // paddingLeft
    b.putInt(0);     // paddingRight
    b.putInt(0);     // paddingTop
    b.putInt(0);     // paddingBottom
    b.putInt(0);     // UNKNOWN
    b.putInt(xs);    // segX start
    b.putInt(xe);    // segX end
    b.putInt(ys);    // segY start
    b.putInt(ye);    // segY end
    for (int i = 0; i < 9; i++) {
        b.putInt(1);     // NO_COLOR
    }
    return b.array();
}

you can use it in NinePatchDrawable constructor (Bitmap, byte[], Rect, String)

来源：https://stackoverflow.com/questions/19955554/create-nine-patch-from-bitamp-and-getting-new-adjust-bitmap

标签

android

bitmap

nine-patch