1. 设定屏幕方向

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

有2中方式控制屏幕方向:

1.1 改动AndroidManifest.xml

在AndroidManifest.xml的activity中增加:
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:

改动AndroidManifest.xml

android:configChanges=”orientation”


近期在做Android的播放器。遇到採用以上方法后,仍然出现屏幕旋转后触发Activity.onCreate,经查阅资料后,发现须要加入screenSize处理

详细代码为:

android:configChanges="orientation|keyboardHidden|screenSize"


禁止重置Activity会造成Screen的宽高颠倒, 须要手动修正。