diff --git a/lib/src/main/java/com/king/zxing/AmbientLightManager.java b/lib/src/main/java/com/king/zxing/AmbientLightManager.java
index 0cc0d96..0ec2e1c 100644
--- a/lib/src/main/java/com/king/zxing/AmbientLightManager.java
+++ b/lib/src/main/java/com/king/zxing/AmbientLightManager.java
@@ -38,7 +38,7 @@ public class AmbientLightManager implements SensorEventListener {
      */
     private float darkLightLux = DARK_LUX;
     /**
-     * 光线足够亮时，默认：照度450 lux
+     * 光线足够亮时，默认：照度100 lux
      */
     private float brightLightLux = BRIGHT_LUX;
 
diff --git a/lib/src/main/java/com/king/zxing/CameraScan.java b/lib/src/main/java/com/king/zxing/CameraScan.java
index 3766aa4..26ee8bf 100644
--- a/lib/src/main/java/com/king/zxing/CameraScan.java
+++ b/lib/src/main/java/com/king/zxing/CameraScan.java
@@ -10,7 +10,6 @@ import com.king.zxing.analyze.AreaRectAnalyzer;
 import com.king.zxing.analyze.BarcodeFormatAnalyzer;
 import com.king.zxing.analyze.ImageAnalyzer;
 import com.king.zxing.analyze.MultiFormatAnalyzer;
-import com.king.zxing.util.LogUtils;
 
 import androidx.annotation.Nullable;
 import androidx.camera.core.CameraSelector;
diff --git a/lib/src/main/java/com/king/zxing/DefaultCameraScan.java b/lib/src/main/java/com/king/zxing/DefaultCameraScan.java
index 466a8df..b75d461 100644
--- a/lib/src/main/java/com/king/zxing/DefaultCameraScan.java
+++ b/lib/src/main/java/com/king/zxing/DefaultCameraScan.java
@@ -152,7 +152,7 @@ public class DefaultCameraScan extends CameraScan {
         mScreenWidth = displayMetrics.widthPixels;
         mScreenHeight = displayMetrics.heightPixels;
 
-        LogUtils.d(String.format("screenSize: %d * %d",mScreenWidth,mScreenHeight));
+        LogUtils.d(String.format("displayMetrics:%dx%d",mScreenWidth,mScreenHeight));
         //因为为了保持流畅性和性能，限制在1080p，在此前提下尽可能的找到屏幕接近的分辨率
         if(mScreenWidth < mScreenHeight){
             float ratio =  mScreenWidth / (float)mScreenHeight;
@@ -169,6 +169,7 @@ public class DefaultCameraScan extends CameraScan {
                 mTargetSize = new Size(mScreenHeight / 9 * 16, mScreenHeight);
             }
         }
+        LogUtils.d("targetSize:" + mTargetSize);
 
         mBeepManager = new BeepManager(mContext);
         mAmbientLightManager = new AmbientLightManager(mContext);
diff --git a/lib/src/main/java/com/king/zxing/util/LogUtils.java b/lib/src/main/java/com/king/zxing/util/LogUtils.java
index 0c087dc..cb49719 100644
--- a/lib/src/main/java/com/king/zxing/util/LogUtils.java
+++ b/lib/src/main/java/com/king/zxing/util/LogUtils.java
@@ -103,7 +103,7 @@ public class LogUtils {
         String tag = TAG_FORMAT;
         String callerClazzName = caller.getClassName();
         callerClazzName = callerClazzName.substring(callerClazzName.lastIndexOf(".") + 1);
-        tag = String.format(tag,new Object[] { callerClazzName, caller.getMethodName(),caller.getFileName(),Integer.valueOf(caller.getLineNumber()) });
+        tag = String.format(tag,callerClazzName, caller.getMethodName(),caller.getFileName(),caller.getLineNumber());
         return new StringBuilder().append(TAG).append(VERTICAL).append(tag).toString();
     }