Android4: 旋转屏幕时禁止Activity重启

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转载最新推荐文章于 2026-05-30 11:44:11 发布 1.5k 阅读 AI 写同款· GEO 优化 ›

Android WebView在屏幕旋转后，不重新加载URL及禁止横屏的方法，横竖屏切换需要更改AndroidManifest.xml文件，在需要禁止重新加载的Activity中增加android:configChanges=“orientation|keyboardHidden|navigation”。但在手机上测试发现，并没有效果，原来，该设置在android4.0及以上的版本中无效，需要另外一个属性：“screenSize”，改成。最近在开发一个web app，发现横屏后，URL会重新加载，体验很不好。阅读详情

http://blog.youkuaiyun.com/zmyde2010/article/details/7030979

我们知道，Andorid旋转屏幕时默认是重新Create Activity，之前我们可以

在AndroidManifest.xml 中添加activity属性android:configChanges="orientation"
来声明Acitivity自己处理orientaion，这样就不会重新Create Activity

在 ics中需要改为android:configChanges="orientation|screenSize"

Caution: Beginning with Android 3.2 (API level 13), the "screen size" also changes when the device switches between portrait and landscape orientation. Thus, if you want to prevent runtime restarts due to orientation change when developing for API level 13 or higher (as declared by the minSdkVersion and targetSdkVersion attributes), you must include the "screenSize" value in addition to the "orientation" value. That is, you must decalare android:configChanges="orientation|screenSize". 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).

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