Android的 - 这方法被调用的那一刻的活动是完全奠定，并准备为用户交互？ [英] Android - which method gets called the moment the activity is fully layed out and ready for user interaction?

问题描述

我需要一种方式来运行一些code在该活动满载的确切时刻，奠定了出来，绘制并准备针对用户的触摸控制。哪种方法/监听器做呢？

I need a way to run some code at the exact moment in which the activity is fully loaded, layed out, drawn and ready for the user's touch controls. Which method/listener does that?

推荐答案

Commonsware是正确的，没有解释你正在尝试做什么，为什么，这是不可能回答你的问题，我怀疑，有细节，你可能在想关于它的错误的方式。

Commonsware is right, without explaining what your are trying to do and why, it's not possible to answer your question and I suspect, with detail, you are probably thinking about it the wrong way.

不过，我也有，我需要做一些非常时髦的布置的东西都已经被测量过了一段code。

However, I do have some code where I needed to do some very funky layout stuff after everything had been measured.

我可以在布局扩展每个视图类和重写 onMeasure（）但是这将是一个大量的工作。于是，我终于实现了这一点。不是很大，但它的工作原理。

I could have extended each of the view classes in the layout and overriden onMeasure() but that would have been a lot of work. So, I ended up doing this. Not great, but it works.

mainMenuLayout是我需要得到时髦的布局。该 onGlobalLayout 回调被调用时，布局已完成图纸。 Utils.setTitleText（）是funkiness发生，当我通过mainMenuLayout给它，它可以访问所有的子视图的位置和大小。

mainMenuLayout is the layout I needed to get funky with. The onGlobalLayout callback is called when the layout has completed drawing. Utils.setTitleText() is where the funkiness takes place and as I pass mainMenuLayout to it, it has access to the position and size of all of the child views.

mainMenuLayout.getViewTreeObserver().addOnGlobalLayoutListener(
            new ViewTreeObserver.OnGlobalLayoutListener() {

                @Override
                public void onGlobalLayout() {

                    // only want to do this once
                    mainMenuLayout.getViewTreeObserver().removeGlobalOnLayoutListener(this);

                    // set the menu title, the empty string check prevents sub-classes
                    // from blanking out the title - which they shouldn't but belt and braces!
                    if (!titleText.equals("")){
                        Utils.setTitleText(_context,mainMenuLayout,titleText);
                    }

                }
            });

这篇关于Android的 - 这方法被调用的那一刻的活动是完全奠定，并准备为用户交互？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！