Android 設定橫屏,禁止旋轉螢幕,Activity重設

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標籤:android   螢幕渲染   activity   

1. 設定螢幕方向

當指定了螢幕的方向後(非SCREEN_ORIENTATION_UNSPECIFIED),螢幕就不會自動的旋轉了

有2中方式控制螢幕方向:

1.1 修改AndroidManifest.xml

在AndroidManifest.xml的activity中加入:橫屏:
           android:screenOrientation=”landscape”豎屏:           android:screenOrientation=”portrait”

1.2 setRequestedOrientation

橫屏:

setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);

豎屏:

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. 禁止旋轉螢幕後重設Activity

旋轉螢幕後會強制調用Activity.onCreate方法,所以會重設Activity

禁止方法:

修改AndroidManifest.xml

android:configChanges=”orientation”




Android 設定橫屏,禁止旋轉螢幕,Activity重設

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