横竖屏切换不重绘的问题

不看API更新的坏处就是，人家明明都修改了，我却无知了。

 <activity
            android:name=".HomeActivity"
            android:configChanges="orientation|keyboardHidden" />

　　

按之前的写法，这样应该足够，按理不应该重绘，可事实证明，这是错误的。原因如下：

"screenSize"

The current available screen size has changed. This represents a change in the currently available size, relative to the current aspect ratio, so will change when the user switches between landscape and portrait. However, if your application targets API level 12 or lower, then your activity always handles this configuration change itself (this configuration change does not restart your activity, even when running on an Android 3.2 or higher device). Added in API level 13.

http://developer.android.com/guide/topics/manifest/activity-element.html#config

google人家老早更新了，事实证明需要这么写：

        <activity
            android:name=".HomeActivity"
            android:configChanges="orientation|keyboardHidden|screenSize" />