Android 设定横屏,禁止屏幕旋转,Activity重置 [更新视频播放器相关]
2017-08-03 11:13
489 查看
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”
最近在做android的播放器,遇到采用以上方法后,仍然出现屏幕旋转后触发Activity.onCreate,经查阅资料后,发现需要添加screenSize处理
具体代码为:
[html]
view plain
copy
print?
android:configChanges="orientation|keyboardHidden|screenSize"
android:configChanges="orientation|keyboardHidden|screenSize"
禁止重置Activity会造成Screen的宽高颠倒, 需要手动修正。
相关文章推荐
- Android 设定横屏,禁止屏幕旋转,Activity重置 [更新视频播放器相关]
- Android 设定横屏,禁止屏幕旋转,Activity重置 [更新视频播放器相关]
- Android 设定横屏,禁止屏幕旋转,Activity重置
- Android 设定横屏,禁止屏幕旋转,Activity重置
- Android 设定横竖屏,屏幕旋转导致Activity重置问题
- Android 禁止屏幕旋转 & 旋转屏幕时保持Activity内容 转
- Android WebView在屏幕旋转后,不重新加载URL及禁止横屏的方法
- Android禁止屏幕旋转和重启Activity
- 在 Android 程序中禁止屏幕旋转和避免重启Activity
- 如何在 Android 程序中禁止屏幕旋转和重启Activity
- 如何在 Android 程序中禁止屏幕旋转和重启Activity
- Android 禁止屏幕旋转 和 旋转屏幕时保持Activity
- Android 4.0: 旋转屏幕时禁止Activity重新加载
- 如何在 Android 程序中禁止屏幕旋转和重启Activity
- Android 禁止屏幕旋转 & 旋转屏幕时保持Activity内容
- 在 Android 程序中禁止屏幕旋转和避免重启Activity
- Android 在程序中禁止屏幕旋转和重启Activity
- Android禁止屏幕旋转,旋转屏幕时不重新加载当前activity
- [置顶] Android开发禁止首次进入activity弹出软键盘,限制屏幕只能竖屏或者横屏展示
- android 程序中禁止屏幕旋转和重启Activity