Android底层开发，如何获取camera ID？

--- a/src/LINUX/android/packages/apps/Camera2/src/com/android/camera/PhotoModule.java

+++ b/src/LINUX/android/packages/apps/Camera2/src/com/android/camera/PhotoModule.java

@@ -103,7 +103,7 @@ public class PhotoModule

SensorEventListener {

private static final String TAG = "CAM_PhotoModule";

-

+ public static int mPhotoCameraID = -1;

//QCom data members

public static boolean mBrightnessVisible = false;

private static final int MAX_SHARPNESS_LEVEL = 6;

@@ -2425,6 +2425,10 @@ public class PhotoModule

Log.e(TAG, "Handled NULL pointer Exception");

}

+

+ mPhotoCameraID = getPreferredCameraId(mPreferences); //young.yang add 获取camera ID

+ Log.v(TAG,"[ysg]: qcomUpdateCameraParametersPreference mPhotoCameraID = "+mPhotoCameraID);

+

// Set Picture Format

// Picture Formats specified in UI should be consistent with

// PIXEL_FORMAT_JPEG and PIXEL_FORMAT_RAW constants