高通android9.0 camera API1底层调用为HAL3而非HAL1，若需要调用HAL1的效果，打开摄像头需要按如下方法打开：

        try {
            Class<?> cameraCalzz = Class.forName("android.hardware.Camera");
            Method openLegacy = cameraCalzz.getMethod("openLegacy", int.class, int.class);
            camera = (Camera) openLegacy.invoke(null, cameraId, 0x100);//CAMERA_HAL_API_VERSION_1_0 = 0x100

        } catch (Exception e) {
            e.printStackTrace();
        }

具体可参考:https://blog.csdn.net/zhuyong006/article/details/102480557

高通android9.0 camera API1底层调用为HAL3而非HAL1