Android 设定横屏，禁止屏幕旋转，Activity重置

时间：2014-10-13 16:27:21 收藏：0 阅读：1004

1. 设定屏幕方向

当指定了屏幕的方向后（非SCREEN_ORIENTATION_UNSPECIFIED），屏幕就不会自动的旋转了

有2中方式控制屏幕方向：

1.1 修改AndroidManifest.xml

在AndroidManifest.xml的activity中加入:

横屏：

android:screenOrientation=”landscape”

竖屏：

android:screenOrientation=”portrait”

1.2 setRequestedOrientation

横屏：

setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);

竖屏：

setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);

ActivityInfo:

int	SCREEN_ORIENTATION_BEHIND	Constant corresponding to behind in the screenOrientation attribute.
int	SCREEN_ORIENTATION_FULL_SENSOR	Constant corresponding to fullSensor in the screenOrientation attribute.
int	SCREEN_ORIENTATION_FULL_USER	Constant corresponding to fullUser in the screenOrientation attribute.
int	SCREEN_ORIENTATION_LANDSCAPE	Constant corresponding to landscape in the screenOrientation attribute.
int	SCREEN_ORIENTATION_LOCKED	Constant corresponding to locked in the screenOrientation attribute.
int	SCREEN_ORIENTATION_NOSENSOR	Constant corresponding to nosensor in the screenOrientation attribute.
int	SCREEN_ORIENTATION_PORTRAIT	Constant corresponding to portrait in the screenOrientation attribute.
int	SCREEN_ORIENTATION_REVERSE_LANDSCAPE	Constant corresponding to reverseLandscape in the screenOrientation attribute.
int	SCREEN_ORIENTATION_REVERSE_PORTRAIT	Constant corresponding to reversePortrait in the screenOrientation attribute.
int	SCREEN_ORIENTATION_SENSOR	Constant corresponding to sensor in the screenOrientation attribute.
int	SCREEN_ORIENTATION_SENSOR_LANDSCAPE	Constant corresponding to sensorLandscape in the screenOrientation attribute.
int	SCREEN_ORIENTATION_SENSOR_PORTRAIT	Constant corresponding to sensorPortrait in the screenOrientation attribute.
int	SCREEN_ORIENTATION_UNSPECIFIED	Constant corresponding to unspecified in the screenOrientation attribute.
int	SCREEN_ORIENTATION_USER	Constant corresponding to user in the screenOrientation attribute.
int	SCREEN_ORIENTATION_USER_LANDSCAPE	Constant corresponding to userLandscape in the screenOrientation attribute.
int	SCREEN_ORIENTATION_USER_PORTRAIT	Constant corresponding to userPortrait in the screenOrientation attribute.

2. 禁止屏幕旋转后重置Activity

屏幕旋转后会强制调用Activity.onCreate方法，所以会重置Activity

禁止方法：

修改AndroidManifest.xml

android:configChanges=”orientation”

原文：http://blog.csdn.net/matrix_laboratory/article/details/40045961