Question

我有五个形状绘制矩形，我必须设置角度为（-20，-15，-10，-5,0）度的矩形。每个矩形都有四种颜色的阴影。现在我需要逐个动画每个矩形，如果用户从左向右拖动，则顶部矩形从左向右移动。

问题是，我不能分别移动每个矩形。我如何分别识别和实现每个矩形？

这里是我必须做的示例快照。 http://postimage.org/image/13sa96sbo/

public ColorFanDraw(Context context) {
    super(context);
    // TODO Auto-generated constructor stub
}


@Override
protected void onDraw(Canvas canvasObject) {

    int x = 100;
    int y = 50;
    int width = 70;
    int convasSize =200;       

    Paint thePaint = new Paint();

    thePaint.setColor(mTouchedColor-200);   
    canvasObject.rotate(-15, centerX,centerY); 
    canvasObject.drawRect(new Rect(x,y,x+width,y+convasSize), thePaint);

    thePaint.setColor(mTouchedColor-50);    
    canvasObject.rotate(10, centerX,centerY);
    canvasObject.drawRect(new Rect(x,y,x+width,y+convasSize), thePaint);

    canvasObject.rotate(10, centerX,centerY);
    thePaint.setColor(mTouchedColor);
    canvasObject.drawRect(new Rect(x,y,x+width,y+convasSize), thePaint);

    rotation = AnimationUtils.loadAnimation(contextObj,
                                     R.anim.view_transition_in_left);

    ImageView img = new ImageView(contextObj);

    img.startAnimation(rotation);


}

Answer 1

在将矩形对象绘制到Canvas上之前，您需要将矩形对象存储在变量中。

Rect rectangle1 = new Rect(x,y,x+width,y+convasSize);
canvasObject.drawRect(rectangel1, thePaint);

Rect rectangle2 = new Rect(x,y,x+width,y+convasSize);
canvasObject.drawRect(rectangel2, thePaint);

等等。

然后，无论在哪里进行动画，都可以参考各个矩形。

我如何分别移动每个矩形？

1 个答案: