我知道我的可绘制线条不是对象,但有任何方法可以将线条点击。
我不能使用视图,因为我会有太多行。提前致谢。
这是我绘制线条的代码。
public class Draw_can extends View {
Paint paint_obj;
public Draw_can(Context context) {
super(context);
}
@Override
protected void onDraw(Canvas canvas) {
// TODO Auto-generated method stub
super.onDraw(canvas);
paint_obj = new Paint();
draw_lines(canvas);
}
public void draw_lines(Canvas canvas) {
int width = 100;
paint_obj.setStrokeWidth(5);
paint_obj.setColor(Color.GRAY);
for (int j = 1; j < 8; j++) {
for (int i = 1; i <= 8; i++) {
canvas.drawLine(50*j, 50 * i, 50*j+50, 50 * i, paint_obj);
}
}
for (int j = 1; j < 8; j++) {
for (int i = 1; i <= 8; i++) {
canvas.drawLine(50 * i , 50*j, 50 * i , 50*j+50, paint_obj);
}
}
}
}
我该怎么做?
答案 0 :(得分:0)
检查一下,我使用onTouchEvent():
@Override
public boolean onTouchEvent(MotionEvent event) {
// TODO Auto-generated method stub
tx = event.getX();
ty = event.getY();
int action = event.getAction();
switch(action){
case MotionEvent.ACTION_DOWN:
tx = event.getX();
ty = event.getY();
//something like this
if(ty==line.y&&tx>=line.x&&tx<=line.x+line.width
break;
case MotionEvent.ACTION_MOVE:
tx = event.getX();
ty = event.getY();
break;
case MotionEvent.ACTION_UP:
// ammo.touchRelease(tx,ty);
break;
case MotionEvent.ACTION_CANCEL:
break;
case MotionEvent.ACTION_OUTSIDE:
break;
default:
}
return true; //processed
}