Java 画布：使用片段更改方向时呈现错误

在我的项目中，我有一个视图，可以绘制画布

加载acvity/fragment后，一切都正常，并且图像渲染正确

但当方向改变时，会部分渲染。 以下是两个例子：

这里是正确的渲染

2.这是方向改变时的渲染：

我编写的类扩展了视图，并重写了onDraw（）方法。代码如下：

    @Override
protected void onDraw(Canvas canvas){       
     super.onDraw(canvas);  
     int size = this.width/2;
     int left = size/2;
     int right = size +left;
     canvas.drawRoundRect(resistorRects[0], 6, 6,resPaint[0]);      
     canvas.drawRect(resistorRects[FIRST_COLOR], resPaint[1]);       
     canvas.drawRect(resistorRects[SECOND_COLOR], resPaint[2]);
     canvas.drawRect(resistorRects[THIRD_COLOR], resPaint[3]);
     canvas.drawRect(resistorRects[MULTIPLIER], resPaint[4]);
     canvas.drawRect(resistorRects[TOLERANCE], resPaint[5]);
     canvas.drawLine((float)left-15, (float)16.5, (float)left, (float)17.5, resPaint[6]);
     canvas.drawLine((float)right, (float)16.5, (float)right+15, (float)17.5, resPaint[6]);
}   

类的构造函数是：

    public ResistorGraphicsView(Context context, int width) {       
    super(context);     
    this.width = width;     
    int i=0;        
    resPaint = new Paint[7];
    resistorRects = new RectF[6];
    while(i < 6){
        resPaint[i] = new Paint(Paint.ANTI_ALIAS_FLAG);
        resPaint[i].setColor(Color.parseColor("#DEADBEEF"));
        i++;
    }
    int size = this.width/2;
    int left = size/2;
    int right = size +left;
    resPaint[6] = new Paint(Paint.ANTI_ALIAS_FLAG);
    resPaint[6].setColor(Color.parseColor("#FFFFFFFF"));


    resistorRects[0]= new RectF(left,0,right,35);               
    resistorRects[FIRST_COLOR]= new RectF(left+10,0,left+20,35);
    resistorRects[SECOND_COLOR]= new RectF(left+30,0,left+40,35);
    resistorRects[THIRD_COLOR] = new RectF(left+50,0, left+60,35);
    resistorRects[MULTIPLIER]= new RectF(left+70,0,left+80,35);
    resistorRects[TOLERANCE]= new RectF(right-30,0,right-20,35);                        
}

事实上，如果在错误的渲染之后，我从侧窗格中选择了它，那么视图将正确渲染

我试图添加一些断点，似乎所有的调用都是正确的。请注意，每次旋转视图时，我都会创建该对象的新实例

case RESISTOR_VALUE:
    getFragmentManager().beginTransaction().replace(R.id.activity_container, new ResistorCalcFragment()).commit();
        break;