diff --git a/shadowlayout/src/main/java/com/lijiankun24/shadowlayout/AttrUtil.java b/shadowlayout/src/main/java/com/lijiankun24/shadowlayout/AttrUtil.java
index 9e68bcf700ae98baeb5eb186a5060276dbe9cb59..d47f001df262635fb08164ab3b2d658c18c08fc4 100644
--- a/shadowlayout/src/main/java/com/lijiankun24/shadowlayout/AttrUtil.java
+++ b/shadowlayout/src/main/java/com/lijiankun24/shadowlayout/AttrUtil.java
@@ -162,7 +162,7 @@ public class AttrUtil {
             String value = attrSet.getAttr(resourceKey).get().getStringValue();
             if (value.contains(colon)) {
                 try {
-                    resourceId = Integer.parseInt(value.substring(value.indexOf(":") + 1));
+                    resourceId = Integer.parseInt(value.substring(value.indexOf(':') + 1));
                 } catch (NumberFormatException e) {
                     HiLog.error(logLabel,e.toString());
                 }
@@ -188,7 +188,7 @@ public class AttrUtil {
             String value = attrSet.getAttr(resourceKey).get().getStringValue();
             if (value.contains(colon)) {
                 try {
-                    resourceId = Integer.parseInt(value.substring(value.indexOf(":") + 1));
+                    resourceId = Integer.parseInt(value.substring(value.indexOf(':') + 1));
                 } catch (NumberFormatException e) {
                     HiLog.error(logLabel,e.toString());
                 }
diff --git a/shadowlayout/src/main/java/com/lijiankun24/shadowlayout/ShadowLayout.java b/shadowlayout/src/main/java/com/lijiankun24/shadowlayout/ShadowLayout.java
index 94b1ce927190db7361ff8ccb8e88e000390654e3..c58203d8b400a5bea8d20b3871d69a4e95b546b0 100644
--- a/shadowlayout/src/main/java/com/lijiankun24/shadowlayout/ShadowLayout.java
+++ b/shadowlayout/src/main/java/com/lijiankun24/shadowlayout/ShadowLayout.java
@@ -320,8 +320,11 @@ public class ShadowLayout extends DependentLayout implements Component.EstimateS
      */
     private float dip2px(float dpValue) {
         Optional<Display> defaultDisplay = DisplayManager.getInstance().getDefaultDisplay(this.getContext());
-        DisplayAttributes attributes = defaultDisplay.get().getAttributes();
-        float scale = attributes.densityPixels;
+        float scale = 0;
+        if (defaultDisplay.isPresent()) {
+            DisplayAttributes attributes = defaultDisplay.get().getAttributes();
+            scale = attributes.densityPixels;
+        }
         return (float) NumberUtil.add(NumberUtil.mul(dpValue,scale),DP_VALUE1);
     }
 }
diff --git a/shadowlayout/src/main/java/com/lijiankun24/shadowlayout/v2/ShadowLayout1.java b/shadowlayout/src/main/java/com/lijiankun24/shadowlayout/v2/ShadowLayout1.java
index 54d6334d60ef67e4edaebb2c7c8858421292990a..d19c6bbcc14b12dc5ac9b00c6b2b7d6dae1cb46b 100644
--- a/shadowlayout/src/main/java/com/lijiankun24/shadowlayout/v2/ShadowLayout1.java
+++ b/shadowlayout/src/main/java/com/lijiankun24/shadowlayout/v2/ShadowLayout1.java
@@ -27,7 +27,6 @@ import java.util.Optional;
  * @since 2021-03-08
  */
 public class ShadowLayout1 extends StackLayout implements Component.EstimateSizeListener,Component.DrawTask {
-
     /**
      * 全部阴影
      */
@@ -245,8 +244,11 @@ public class ShadowLayout1 extends StackLayout implements Component.EstimateSize
      */
     private float dp2Px(float dpValue) {
         Optional<Display> defaultDisplay = DisplayManager.getInstance().getDefaultDisplay(this.getContext());
-        DisplayAttributes attributes = defaultDisplay.get().getAttributes();
-        float scale = attributes.densityPixels;
+        float scale = 0;
+        if (defaultDisplay.isPresent()) {
+            DisplayAttributes attributes = defaultDisplay.get().getAttributes();
+            scale = attributes.densityPixels;
+        }
         return (float) (dpValue * scale + NUM);
     }
 
@@ -254,22 +256,26 @@ public class ShadowLayout1 extends StackLayout implements Component.EstimateSize
      * 根据手机的分辨率从 px(像素) 的单位 转成为 dp
      */
     private int px2dip(float pxValue) {
+        int pxToDip = 0;
         Optional<Display> defaultDisplay = DisplayManager.getInstance().getDefaultDisplay(this.getContext());
-        DisplayAttributes attributes = defaultDisplay.get().getAttributes();
-        final float scale = attributes.densityPixels;
-        return (int) (pxValue / scale + NUM);
+        if (defaultDisplay.isPresent()) {
+            DisplayAttributes attributes = defaultDisplay.get().getAttributes();
+            float scale = attributes.densityPixels;
+            if (scale != 0) {
+                pxToDip = (int) ((pxValue / scale) + NUM);
+            }
+        }
+        return pxToDip;
     }
 
     /**
      * Color int类型转RGB
      */
     private int[] toRgb(int color) {
-
         int red = (color & RED) >> SIXTEEN;
         int green = (color & GREEN) >> EIGHT;
         int blue = color & BLUE;
         return new int[]{red,green,blue};
     }
-
 }