iOS推流横屏方案建议

注意：目前SDK的横屏推流需要在推流界面的Controller中将iPhone竖屏锁定（即只允许Portrait一个方向)，因为推流SDK是对采集到的视频帧做的旋转，不是对view做的旋转


[backcolor=transparent]横屏模式下，如果有需求的话，需要对UI做一套横屏的适配，在此套适配方案中，不需要对预览view做旋转，举例：如果预览画面是全屏，横屏模式下，则不需要对预览画面的view做任何更改，只需要对页面上其他的如点赞button做一下frame的变化
步骤：

• 1、检测设备方向

1. [backcolor=transparent][[[backcolor=transparent]UIDevice[backcolor=transparent] currentDevice[backcolor=transparent]][backcolor=transparent] beginGeneratingDeviceOrientationNotifications[backcolor=transparent]];
3. [backcolor=transparent][[[backcolor=transparent]NSNotificationCenter[backcolor=transparent] defaultCenter[backcolor=transparent]][backcolor=transparent] addObserver[backcolor=transparent]:[backcolor=transparent]self[backcolor=transparent] selector[backcolor=transparent]:[backcolor=transparent]@selector[backcolor=transparent]([backcolor=transparent]handleDeviceOrientationDidChange[backcolor=transparent]:)[backcolor=transparent] name[backcolor=transparent]:[backcolor=transparent]UIDeviceOrientationDidChangeNotification[backcolor=transparent] [backcolor=transparent]object[backcolor=transparent]:[backcolor=transparent]nil[backcolor=transparent]];

• 2、设备方向回调中设置横屏推流还是竖屏推流

1. [backcolor=transparent]-[backcolor=transparent] [backcolor=transparent]([backcolor=transparent]void[backcolor=transparent])[backcolor=transparent]handleDeviceOrientationDidChange[backcolor=transparent]:([backcolor=transparent]UIInterfaceOrientation[backcolor=transparent])[backcolor=transparent]interfaceOrientation [backcolor=transparent]{
3. [backcolor=transparent]    [backcolor=transparent]UIDevice[backcolor=transparent] [backcolor=transparent]*[backcolor=transparent]device [backcolor=transparent]=[backcolor=transparent] [backcolor=transparent][[backcolor=transparent]UIDevice[backcolor=transparent] currentDevice[backcolor=transparent]][backcolor=transparent] [backcolor=transparent];
4. [backcolor=transparent]    [backcolor=transparent]switch[backcolor=transparent] [backcolor=transparent]([backcolor=transparent]device[backcolor=transparent].[backcolor=transparent]orientation[backcolor=transparent])[backcolor=transparent] [backcolor=transparent]{
5. [backcolor=transparent]        [backcolor=transparent]case[backcolor=transparent] [backcolor=transparent]UIDeviceOrientationFaceUp[backcolor=transparent]:
6. [backcolor=transparent]            [backcolor=transparent]NSLog[backcolor=transparent](@[backcolor=transparent]"屏幕朝上平躺"[backcolor=transparent]);
7. [backcolor=transparent]            [backcolor=transparent]break[backcolor=transparent];
9. [backcolor=transparent]        [backcolor=transparent]case[backcolor=transparent] [backcolor=transparent]UIDeviceOrientationFaceDown[backcolor=transparent]:
10. [backcolor=transparent]            [backcolor=transparent]NSLog[backcolor=transparent](@[backcolor=transparent]"屏幕朝下平躺"[backcolor=transparent]);
11. [backcolor=transparent]            [backcolor=transparent]break[backcolor=transparent];
13. [backcolor=transparent]        [backcolor=transparent]case[backcolor=transparent] [backcolor=transparent]UIDeviceOrientationUnknown[backcolor=transparent]:
14. [backcolor=transparent]            [backcolor=transparent]NSLog[backcolor=transparent](@[backcolor=transparent]"未知方向"[backcolor=transparent]);
15. [backcolor=transparent]            [backcolor=transparent]break[backcolor=transparent];
17. [backcolor=transparent]        [backcolor=transparent]case[backcolor=transparent] [backcolor=transparent]UIDeviceOrientationLandscapeLeft[backcolor=transparent]:[backcolor=transparent] [backcolor=transparent]{
18. [backcolor=transparent]            [backcolor=transparent]NSLog[backcolor=transparent](@[backcolor=transparent]"屏幕向左横置"[backcolor=transparent]);
19. [backcolor=transparent]            [backcolor=transparent]// 横屏推流
20. [backcolor=transparent]            [backcolor=transparent][[backcolor=transparent]self[backcolor=transparent] destroySession[backcolor=transparent]];[backcolor=transparent]     [backcolor=transparent]// 销毁推流
21. [backcolor=transparent]            [backcolor=transparent]// 建议加一个loading  因为销毁推流在重新推流会关闭在重新开启摄像头采集
22. [backcolor=transparent]            _isScreenHorizontal [backcolor=transparent]=[backcolor=transparent] YES[backcolor=transparent];[backcolor=transparent]  [backcolor=transparent]// 全局变量  横屏置为YES
23. [backcolor=transparent]            [backcolor=transparent][[backcolor=transparent]self[backcolor=transparent] testPushCapture[backcolor=transparent]];[backcolor=transparent]    [backcolor=transparent]// 重新推流
24. [backcolor=transparent]        [backcolor=transparent]}
25. [backcolor=transparent]            [backcolor=transparent]break[backcolor=transparent];
27. [backcolor=transparent]        [backcolor=transparent]case[backcolor=transparent] [backcolor=transparent]UIDeviceOrientationLandscapeRight[backcolor=transparent]:
28. [backcolor=transparent]            [backcolor=transparent]NSLog[backcolor=transparent](@[backcolor=transparent]"屏幕向右橫置"[backcolor=transparent]);
29. [backcolor=transparent]            [backcolor=transparent]break[backcolor=transparent];
31. [backcolor=transparent]        [backcolor=transparent]case[backcolor=transparent] [backcolor=transparent]UIDeviceOrientationPortrait[backcolor=transparent]:[backcolor=transparent] [backcolor=transparent]{
32. [backcolor=transparent]            [backcolor=transparent]NSLog[backcolor=transparent](@[backcolor=transparent]"屏幕直立"[backcolor=transparent]);
33. [backcolor=transparent]            [backcolor=transparent]// 竖屏推流
34. [backcolor=transparent]            [backcolor=transparent][[backcolor=transparent]self[backcolor=transparent] destroySession[backcolor=transparent]];[backcolor=transparent]     [backcolor=transparent]// 销毁推流
35. [backcolor=transparent]            _isScreenHorizontal [backcolor=transparent]=[backcolor=transparent] NO[backcolor=transparent];[backcolor=transparent]  [backcolor=transparent]// 全局变量  横屏设置为NO
36. [backcolor=transparent]            [backcolor=transparent][[backcolor=transparent]self[backcolor=transparent] testPushCapture[backcolor=transparent]];[backcolor=transparent]    [backcolor=transparent]// 重新推流
37. [backcolor=transparent]        [backcolor=transparent]}
38. [backcolor=transparent]            [backcolor=transparent]break[backcolor=transparent];
40. [backcolor=transparent]        [backcolor=transparent]case[backcolor=transparent] [backcolor=transparent]UIDeviceOrientationPortraitUpsideDown[backcolor=transparent]:
41. [backcolor=transparent]            [backcolor=transparent]NSLog[backcolor=transparent](@[backcolor=transparent]"屏幕直立，上下顛倒"[backcolor=transparent]);
42. [backcolor=transparent]            [backcolor=transparent]break[backcolor=transparent];
44. [backcolor=transparent]        [backcolor=transparent]default[backcolor=transparent]:
45. [backcolor=transparent]            [backcolor=transparent]NSLog[backcolor=transparent](@[backcolor=transparent]"无法辨识"[backcolor=transparent]);
46. [backcolor=transparent]            [backcolor=transparent]break[backcolor=transparent];
47. [backcolor=transparent]    [backcolor=transparent]}
49. [backcolor=transparent]}

• 3、注销Device

1. [backcolor=transparent]-[backcolor=transparent] [backcolor=transparent]([backcolor=transparent]void[backcolor=transparent])[backcolor=transparent]dealloc[backcolor=transparent]{
2. [backcolor=transparent]    [backcolor=transparent][[[backcolor=transparent]NSNotificationCenter[backcolor=transparent] defaultCenter[backcolor=transparent]][backcolor=transparent] removeObserver[backcolor=transparent]:[backcolor=transparent]self[backcolor=transparent]];
3. [backcolor=transparent]    [backcolor=transparent][[[backcolor=transparent]UIDevice[backcolor=transparent] currentDevice[backcolor=transparent]][backcolor=transparent]endGeneratingDeviceOrientationNotifications[backcolor=transparent]];
4. [backcolor=transparent]}