我想我碰到了一个讨厌的bug。的问题是,几乎水平线 具有轻微的梯度,并使用与StrokeWidth一个Paint = 1不 绘制,例如:在Android中Paint.StrokeWidth = 1的drawLine问题
public class MyControl extends View {
public MyControl(Context context) {
super(context);
// TODO Auto-generated constructor stub
}
@Override
protected void onDraw(Canvas canvas)
{
super.onDraw(canvas);
Paint pen = new Paint();
pen.setColor(Color.RED);
pen.setStrokeWidth(1);
pen.setStyle(Paint.Style.STROKE);
canvas.drawLine(100, 100, 200, 90, pen); //not painted
canvas.drawLine(100, 100, 200, 100, pen);
canvas.drawLine(100, 100, 200, 110, pen); //not painted
canvas.drawLine(100, 100, 200, 120, pen); //not painted
canvas.drawLine(100, 100, 200, 130, pen);
pen.Color = Color.MAGENTA;
pen.setStrokeWidth(2);
canvas.drawLine(100, 200, 200, 190, pen);
canvas.drawLine(100, 200, 200, 200, pen);
canvas.drawLine(100, 200, 200, 210, pen);
canvas.drawLine(100, 200, 200, 220, pen);
canvas.drawLine(100, 200, 200, 230, pen);
}
}
并采用MyControl类这种方式:
public class prova extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
MyControl ctrl = new MyControl(this);
setContentView(ctrl);
}
}
将StrokeWidth设置为0或大于1,绘制所有线。
任何人都可以提出这个问题或者我应该提交这个问题作为Android Issue?
在此先感谢!