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我正在实施Camera2
,并且我收到以下警告(我无法再现可能发生的任何“npe” )当我设置摄像机输出(我得到的google样品我的代码)以下行给我以下警告:Android摄像头:'features.get(CameraCharacteristics.LENS_FACING)'的拆箱可能会产生NPE
“的拆箱‘characteristics.get(CameraCharacteristics.LENS_FACING)’ 可能会产生NPE。“
for (String cameraId : manager.getCameraIdList()) {
CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId);
if (characteristics.get(CameraCharacteristics.LENS_FACING)
== CameraCharacteristics.LENS_FACING_FRONT) { //THESE LINE IS WHERE THE WARNING APPEARS
continue;
}
....
是否有人知道如何以适当的方式,以赶上这在它发生的情况下检查一下?