android camera 可以获取到USB摄像头的名称吗
时间: 2023-11-30 09:02:41 浏览: 31
是的,Android的Camera API可以获取USB摄像头的名称。您可以使用CameraManager类来获取摄像头设备列表,并通过CameraCharacteristics类获取每个摄像头设备的详细信息,其中包括摄像头的名称。
以下是获取USB摄像头名称的示例代码:
```java
CameraManager cameraManager = (CameraManager) getSystemService(Context.CAMERA_SERVICE);
String[] cameraIds = cameraManager.getCameraIdList();
for (String cameraId : cameraIds) {
CameraCharacteristics characteristics = cameraManager.getCameraCharacteristics(cameraId);
Integer facing = characteristics.get(CameraCharacteristics.LENS_FACING);
if (facing != null && facing == CameraCharacteristics.LENS_FACING_EXTERNAL) {
String cameraName = characteristics.get(CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL);
Log.d("USB Camera", "Camera name: " + cameraName);
}
}
```
请注意,只有在设备上连接了USB摄像头时,才会返回LENS_FACING_EXTERNAL。如果没有连接USB摄像头,则不会出现此项。