机器人的getHeight（）/的getWidth与RelativeLayout的 [英] android getHeight()/getWidth with RelativeLayout

问题描述

您好我是新来的Andr​​oid和现在面临的问题：我如何才能在高度/宽度的视图，这是摆在一个相对布局？我试过的getHeight（）和的getWidth（）和都返回0。

Hi I'm new to Android and am facing the problem: how do I get the Height/Width of a view, which is placed in a relative layout? I tried getHeight() and getWidth() and both return 0.

我需要知道这种看法是否达到了布局的结束，这样我可以下一个视图放置在其右侧或下方。

I need to know whether this view has reached the end of the Layout so that I can place the next view to its right or below it.

或者有更好的办法做到这一点不知道当前视图的位置？

or maybe there is a better way to do this without knowing the position of the current view?

编辑： 我用这个code创建一个EditText，并将其添加到布局：

edit: I use this code to create an EditText and add it to the layout:

                EditText et1 = new EditText(context);
                RelativeLayout.LayoutParams p = new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,
                        ViewGroup.LayoutParams.WRAP_CONTENT);
                p.addRule(RelativeLayout.RIGHT_OF,curView.getId());
                et1.setLayoutParams(p);
                et1.setId(loopid++);
                curLayout.addView(et1);
                curView=et1;

然后调用：

            int[] location=new int[2];
            curView.getLocationOnScreen(location);
            Log.d("right:", String.valueOf(location[1]));

和它显示了一个0。

推荐答案

正在调用的getHeight（）/的getWidth（）视图可以被解雇之前出这样它返回0。如果你在生命周期后调用它它会停止这个问题。

You are calling getHeight()/getWidth() before the view can be laid out so it is returning 0. If you call it later in the lifecycle it will stop this issue.

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