Question

如果我快速移动手指，我需要用手指画一条带有锋利边缘的线条，但是当移动速度慢时，线条变形如下所示。看起来我应该移动一个矩形。

到目前为止，这是我的代码：

    public boolean onTouchEvent(MotionEvent event) {
    touchX = event.getX();
    touchY = event.getY();
    switch (event.getActionMasked()) {
        case MotionEvent.ACTION_DOWN:
                    drawPath.moveTo(touchX, touchY);
                    startX = touchX;
                    startY = touchY;
                    somethingWasDrawn = false;
                    break;
        case MotionEvent.ACTION_MOVE:
                    drawPath.lineTo(touchX, touchY);
                    break;
        case MotionEvent.ACTION_UP:
                    drawCanvas.drawPath(drawPath, drawPaint);
                    drawPath.reset();
                    break;

drawPaint像这样初始化：

        Paint drawPaint = new Paint();
    drawPaint.setColor(paintColor);
    drawPaint.setAntiAlias(false);
    drawPaint.setStrokeWidth(strokeWith);
    drawPaint.setStyle(Paint.Style.STROKE);
    drawPaint.setStrokeJoin(Paint.Join.MITER);
    drawPaint.setStrokeCap(Paint.Cap.BUTT);

你有什么提示吗？

缓慢绘制Android / Java的变形

0 个答案: