层次观众间产生pretation [英] hierarchy viewer results interpretation

问题描述

几天前我已经安装在Eclipse的ADT插件的更新，我刚刚尝试了新的层次观众工具。除了我花了一段时间，发现测量仅在第一个（父）视图来计算，我观察到显示的数值，每次都是不一样的，即使有我的应用程序没有任何改变。

Some days ago I've installed the updates for ADT Plugin in Eclipse and I've just tried the new Hierarchy viewer tool. Beside it took me a while to find that the measurements are calculated only at the first (parent) view, I have observed that the values shown are not the same every time, even if there are no changes in my application.

例如，我在模拟器启动我的应用程序之一，它装在层次观众，并得到了下一个结果：（我希望包括屏幕截图，但我的名誉不允许我张贴图片，所以我就写值）

For example, I've launched in the emulator one of my applications, loaded it in the Hierarchy viewer and got the next results: (I've wanted to include the screen shots, but my reputation doesn't allow me to post pictures yet, so I'll just write the values)

测量： 175.340毫秒
布局： 5.179毫秒
绘制： 47.115毫秒

Measure: 175.340 ms
Layout: 5.179 ms
Draw: 47.115 ms

然后，没有任何变化，我再次启动的应用程序，并得到以下结果：

Then, without any changes, I launched again the application, and got the following results:

测量： 98.696毫秒
布局： 4.819毫秒
绘制： 50.923毫秒

Measure: 98.696 ms
Layout: 4.819 ms
Draw: 50.923 ms

有人能告诉我，为什么会出现测量值之间如此大的差异，例如？

Could someone tell me why there is such a big difference between the values of Measure, for example?

此外，也有人知道意思/提供的3个值之间的差异：测量 布局和绘图？分别与相关的意见，一些具体的attributs？

Also, did someone know the meaning / the difference between the 3 values provided: Measure, Layout and Draw? Are each related with some specific attributs of the views?

Android的开发者页面并没有提供太多的解释是什么，以及我所知道的是这些值必须尽可能的小。

The Android developers page doesn't provide too many explanations for that, and all I know is those values must be as small as possible.

推荐答案

看一看的android怎么样画图。
它有什么样的价值观衡量一个视图，布局和绘制的所有信息。

Have a look at "How Android Draws Views".
It has all the info of what the values Measure, Layout and Draw of a View are.

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