class createCanvas
{
int Xpos,Ypos,canvasWidth,canvasHeight;
public Canvas canvasCreate(int Xpos,int Ypos,int canvasWidth,int canvasHeight)
{
Canvas canvas=new Canvas();
canvas.setSize(canvasWidth, canvasHeight);
canvas.setLocation(Xpos, Ypos);
canvas.setBackground(Color.WHITE);
return canvas;
}
}
这是一个创建画布的类,为了清楚将画布设为了白色,但是似乎创建不了,看不见白色。高手赐教
{
int Xpos,Ypos,canvasWidth,canvasHeight;
public Canvas canvasCreate(int Xpos,int Ypos,int canvasWidth,int canvasHeight)
{
Canvas canvas=new Canvas();
canvas.setSize(canvasWidth, canvasHeight);
canvas.setLocation(Xpos, Ypos);
canvas.setBackground(Color.WHITE);
return canvas;
}
}
这是一个创建画布的类,为了清楚将画布设为了白色,但是似乎创建不了,看不见白色。高手赐教
必须重写 paint 方法,以便在 canvas 上执行自定义图形。