MainActivity.java 文件源码

public void UpdateCanvas() {
    canvasMaster.drawColor(0, Mode.CLEAR);
    canvasMaster.drawBitmap(lastEditedBitmap, 0.0f, 0.0f, null);
    int i = 0;
    while (true) {
        if (i >= paths.size()) {
            break;
        }
        int brushSize = brushSizes.get(i);
        Paint paint = new Paint();
        paint.setColor(0);
        paint.setStyle(Style.STROKE);
        paint.setAntiAlias(true);
        paint.setStrokeJoin(Join.ROUND);
        paint.setStrokeCap(Cap.ROUND);
        paint.setXfermode(new PorterDuffXfermode(Mode.SRC));
        paint.setStrokeWidth((float) brushSize);
        canvasMaster.drawPath(paths.get(i), paint);
        i += 1;
    }
    touchImageView.invalidate();
}