增加自动对焦的检测

app/src/main/cpp/camera2/ndkcamera.cpp

@@ -779,6 +779,10 @@ void NdkCamera::onCaptureCompleted(ACameraCaptureSession* session, ACaptureReque
     status = ACameraMetadata_getConstEntry(result, ACAMERA_CONTROL_SCENE_MODE, &val);
     mResult.hdrMode = (*(val.data.u8) == ACAMERA_CONTROL_SCENE_MODE_HDR) ? 1 : 0;
 
+    val = {0};
+    status = ACameraMetadata_getConstEntry(result, ACAMERA_CONTROL_AF_MODE, &val);
+    mResult.autoFocus = *(val.data.u8);
+
     ALOGD("onCaptureCompleted EXPOSURE_TIME=%lld, FocusDis=%f camera id=%s, AE=%s AF_STATE=%u", exTime, focusDistance, mCameraId.c_str(), ((aeMode == 1) ? "ON" : "OFF"), afState);
 
     // __android_log_print(ANDROID_LOG_WARN, "NdkCamera", "onCaptureCompleted %p %p %p", session, request, result);