如何获得ViewSwitcher包只对目前显示的视图的高度？

问题描述

我使用的是ViewSwitcher这让我轻松地来回翻转两个不同列表头之间，内置的动画。

I'm using a ViewSwitcher that lets me easily flip back and forth between two different List Headers with Animations built in.

然而，问题是这两种观点都大大不同高度的，看来，该ViewSwitcher与 layout_height =WRAP_CONTENT，测量儿童和需要的更大的这两个高度作为它自己。这导致了大量的正下方的较小视图不需要的空白空间时，它被示出。

However, the problem is the two views are of greatly varying height and it appears that the ViewSwitcher with layout_height="wrap_content", measures both children and takes the greater of the two heights as its own. This results in a large amount of unwanted blank space immediately below the smaller view when it is showing.

我明白为什么需要这样ViewSwitcher行为，但它不希望我的应用程序的行为。

I understand why this is desired ViewSwitcher behavior, but it is NOT desired My App behavior.

例：
说视图A是50dp高大查看B是100dp高，都被添加作为孩子的ViewSwitcher。该ViewSwitcher总是100dp高的甚至有景参观。

Example:
Say View A is 50dp tall and View B is 100dp tall and both are added as children to the ViewSwitcher. The ViewSwitcher always is 100dp tall even with View A showing.

我要的是能A和B之间进行切换，有ViewSwitcher缩小或增加当前显示的任何观点，以适应。我怎样才能做到这一点？

推荐答案

设置在 measureAllChildren 属性 ViewSwitcher 以假。

<ViewSwitcher
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:measureAllChildren="false">

有关详细信息请参阅documentation.

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